Gossen MetraWatt METRACELL BT PRO User manual

Operating Instructions
METRACELL BT PRO
Portable Battery Tester 3-447-058-03
2/12.20

METRACELL BT PRO Gossen Metrawatt GmbH
Table of Contents
1 Safety Precautions..............................................................1
2 Important Information .........................................................2
2.1 Intended Use /
Use for Intended Purpose ................................................2
2.2 Use for Other than Intended Purpose...............................2
2.3 Liability and Guarantee ....................................................2
2.4 Opening the Instrument / Repairs .................................... 2
3 Documentation....................................................................2
3.1 Identifiers ......................................................................... 2
3.2 Definition of Terms ........................................................... 2
4 Getting Started....................................................................3
5 The Instrument....................................................................3
5.1 Scope of Delivery............................................................. 3
5.2 Optional Accessories ....................................................... 3
5.3 Instrument Overview ........................................................3
5.4 Relevant Standards .........................................................4
5.5 Measurement Inputs ........................................................ 5
5.6 LCD Display..................................................................... 5
5.7 Function Keys / Navigation ..............................................5
5.8 RFID Reader ....................................................................5
5.9 Attachment Options.........................................................5
5.10 Technical Data.................................................................6
5.11 Characteristic Values ....................................................... 6
6 Operation ............................................................................7
6.1 Power Supply (rechargeable batteries) ............................. 7
6.2 Switching the Instrument On/Off ......................................7
6.3 System Settings............................................................... 8
6.4 Establishing and Terminating Wireless Connections.........8
6.5 Testing the RFID Reader..................................................9
7 Menu and Functions .........................................................10
7.1 Overview........................................................................ 10
7.2 Display Menu ................................................................. 12
7.3 Measurement Menu ....................................................... 12
7.4 Data Menu..................................................................... 15
7.5 The SETTINGS Menu..................................................... 16
7.6 INFO Menu .................................................................... 17
8 “BT PRO Manager” PC Software.......................................18
8.1 Installation, Launching the Program and Update ............ 18
8.2 Overview........................................................................ 18
8.3 Defining the Data(base) Storage Location ...................... 18
8.4 Managing User Accounts............................................... 19
8.5 Basic Setting: Specifying the Temperature Unit of
Measure ........................................................................ 20
8.6 Creating and Managing the Battery Database................ 20
8.7 Transferring the Battery Database to the Battery
Tester ............................................................................ 23
8.8 Assigning RFID Tags to Batteries (DUTs)........................24
8.9 Importing Measurement Data......................................... 24
8.10 Viewing Measurement Series and Creating Measurement
Evaluations (reports)....................................................... 25
9 Preparing Measurements..................................................28
9.1 General Information (procedure)..................................... 28
9.2 Switching Polarity On or Off ...........................................28
9.3 Connecting Measuring Accessories ............................... 28
10 Performing Measurements ............................................... 30
10.1 General Information........................................................30
10.2 Multimeter Measurements..............................................32
10.3 Float Measurement ........................................................33
10.4 Discharge Measurement ................................................35
10.5 Charge Measurement ....................................................37
10.6 Resistance Measurement...............................................39
10.7 Temperature Measurement ............................................41
10.8 Connector Measurement ...............................................43
10.9 Interval U Measurement .................................................45
10.10 Interval U+I Measurement ..............................................47
10.11 DMA35 Measurement (IrDA)...........................................49
10.12 DMA35 Measurement (BT).............................................51
11 Viewing, Editing, Transferring and Evaluating Measured
Values ............................................................................... 53
11.1 Viewing Measured Values / Measured Value Details
at the Instrument............................................................53
11.2 Viewing Measured Value Evaluations at the Instrument ..53
11.3 Excluding a Measurement from Transmission
(deactivate measurement) ..............................................53
11.4 Deleting Measured Values..............................................53
11.5 Saving Measured Values to a PC (data backup) .............53
12 Maintenance ..................................................................... 55
12.1 Firmware Update ...........................................................55
12.2 Housing and Display ......................................................55
12.3 Measurement Cables .....................................................55
12.4 Fuse...............................................................................56
12.5 Accessories ...................................................................56
13 Service and Support .........................................................56
13.1 Product Support ............................................................56
13.2 Repair and Replacement Parts Service
Calibration Center and Rental Instrument Service...........56
14 CE Declaration ..................................................................57
15 Returns and Environmentally Sound Disposal.................. 57

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Gossen Metrawatt GmbH METRACELL BT PRO
1 Safety Precautions
Observe this documentation, in particular all included safety infor-
mation, in order to protect yourself and others from injury, and to
prevent damage to the instrument.
• Carefully and completely read and adhere to these operating
instructions, as well as the instrument’s condensed operating
instructions.
The respective documents can be found at
http://www.gossenmetrawatt.com. Retain these documents
for future reference.
• Use only the specified accessories with the instrument!
• Carefully and completely read and adhere to the product docu-
mentation for optional accessories. Retain these documents
for future reference.
• Tests may only be performed by a qualified electrician, or
under the supervision and direction of a qualified electrician.
The user must be instructed by a qualified electrician concern-
ing performance and evaluation of the tests.
• Wear suitable and appropriate personal protective equipment
(PPE) whenever working with the instrument.
• Implement adequate measures for protection against electro-
static discharge (ESD).
• Observe and comply with all applicable DIN, VDE, EN, IEC and
ANSI guidelines. Inform yourself concerning the operating
company’s specifications and guidelines, as well as those of
the respective battery manufacturers.
• Batteries are electrochemical components with very high
short-circuit currents. Avoid short-circuits which endanger
yourself as a user, the entire system or operating personnel.
• If the instrument doesn’t function flawlessly, remove it from
operation and secure it against inadvertent use.
• The instrument may only be used as long as it’s in good work-
ing order.
Inspect the housing before use. Pay particular attention to any
possible cracks and the insulation around the sockets.
Damaged components must be replaced immediately.
• Accessories and cables may only be used as long as they’re
fully intact.
Inspect all cables and accessories before use. Pay particular
attention to damage, broken insulation or kinked cables.
Damaged components must be replaced immediately.
• Do not use the instrument after long periods of storage under
unfavorable conditions (e.g. humidity, dust or extreme tem-
perature).
• Do not use the instrument after extraordinary stressing due to
transport.
• Do not use the instrument in potentially explosive atmo-
spheres.
• Use the instrument only within the specified ambient condi-
tions.
• Use the instrument only in accordance with the specified pro-
tection class (IP code).
• The instrument must not be exposed to direct sunlight.
• The instrument and the included accessories may only be
used for the measurements described in this manual.
• Only use accessories and the charger which are included with
the battery tester or listed as optional accessories.
• Only use the instrument and the accessories within the speci-
fied measuring category.
• The measurement cables and all external cabling must not
exceed an overall length of 1 meter.
• Plugging in the measurement cables and the power pack must
not necessitate any undue force.
• Connect the ground wire before connecting the voltage con-
ducting cable, and disconnect the voltage conducting cable
before disconnecting the ground wire.
• Check measurement cable continuity.
• Avoid short circuits due to incorrectly connected measurement
cables.
• Never touch the conductive ends of the alligator clips, the test
probes or the Kelvin probes.
• Ensure that the alligator clips, test probes and Kelvin probes
make good contact.
• Do not move or remove the Kelvin probes during a measure-
ment.
Unwanted sparking may otherwise occur due to test current.
• Do not remove or move the alligator clips, test probes or Kelvin
probes until measurement has been completed. Completion of
measurement is indicated by means of an acoustic acknowl-
edgment.
• Avoid simultaneously contacting the battery and the frame or
hardware, which may be grounded.
• The battery tester is equipped with a transponder module.
Determine whether or not use of the 125 kHz frequency is per-
missible in your country.
• The battery tester is equipped with a Bluetooth®module.
Determine whether or not use of the implemented frequency
range of 2.402 to 2.480 GHz is permissible in your country.
• The input at the P+ measurement jack is equipped with a fuse
link. The instrument may only be used as long as this fuse is in
flawless condition.
A defective fuse may only be replaced by our repair service.
• The instrument only works with inserted batteries.
• The battery charger may only be connected to electrical sys-
tems (TN or TT) with a maximum of 230/400 V which comply
with applicable safety regulations (e.g. IEC 60346, VDE 0100)
and are protected with a fuse or circuit breaker with a maxi-
mum rating of 16 A.
• Do not use the instrument while the internal batteries are being
charged.
• Do not use the instrument if the battery compartment cover
has been removed.
• Always create a backup copy of your measurement data.

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METRACELL BT PRO Gossen Metrawatt GmbH
2 Important Information
Please read this important information!
2.1 Intended Use /
Use for Intended Purpose
Periodic testing and well-organized maintenance are necessary in
order to assure the availability of stationary battery systems.
The METRACELL BT PRO is a multifunctional instrument for test-
ing batteries and battery blocks (referred to below as “devices
under test” or “DUTs”). It can be used to determine the current sta-
tus of a DUT and pinpoint concealed defects. The battery tester is
used primarily for testing DUTs in stationary battery systems.
The battery tester stores measured values internally. All recorded
measured values can be viewed on site. Individual acquired values
can be conveniently re-measured if necessary. Management of
devices under test, as well as evaluation and backup of the mea-
sured values, is handled by the included “BT PRO Manager” soft-
ware. The measured values can also be transferred to an external
computer as a CSV file.
The battery tester is a portable instrument which can be held in the
hand while performing measurements.
Safety of the operator, as well as that of the instrument, is only
assured when it’s used for its intended purpose.
2.2 Use for Other than Intended Purpose
Using the instrument for any purposes other than those described
in the condensed operating instructions or these instrument oper-
ating instructions is contrary to use for intended purpose.
2.3 Liability and Guarantee
Gossen Metrawatt GmbH assumes no liability for property dam-
age, personal injury or consequential damage resulting from
improper or incorrect use of the product, in particular due to failure
to observe the product documentation. Furthermore, all guarantee
claims are rendered null and void in such cases.
Nor does Gossen Metrawatt GmbH assume any liability for data
loss.
2.4 Opening the Instrument / Repairs
The instrument may only be opened by authorized, trained per-
sonnel in order to ensure flawless, safe operation and to assure
that the guarantee isn’t rendered null and void. Even original
replacement parts may only be installed by authorized, trained
personnel.
Unauthorized modifications to the instrument are prohibited.
If it can be ascertained that the battery tester has been opened by
unauthorized personnel, no guarantee claims can be honored by
the manufacturer with regard to personal safety, measuring accu-
racy, compliance with applicable safety measures or any conse-
quential damages.
3 Documentation
3.1 Identifiers
The following identifiers are used in this documentation:
3.2 Definition of Terms
A cell is an electrochemical energy-storage device and represents
the smallest technically usable unit. One or more cells in a housing
form a block. In turn, a battery consists of a single block or a
group of blocks which are connected in parallel and/or series. Suf-
ficiently high voltages are generated by connecting units into a
string. Together, one or more batteries and/or blocks, along with
additional components (e.g. control systems, cooling, fuses etc.)
form a system as the largest unit.
A UPS system (uninterruptible power supply) usually consists of
several rechargeable batteries, which in turn are made up of sev-
eral blocks and electrical circuits (e.g. the charging equipment,
control electronics for monitoring mains voltage and the inverter
for converting outgoing direct voltage into alternating voltage).
From an organizational standpoint, a device under test is always a
battery where the battery tester is concerned. Information such as
location (respective system) and the number of blocks is assigned
to this battery.
Figure 2: Example – Blocks and Battery within a System
Identifier Meaning
Attention!
!
Warning
Safety information that must be com-
plied with
Note
Important
Important information which must be
taken into consideration and complied
with
Prerequisite A condition etc. which must be fulfilled
before a given action can be taken
1. Procedural step Steps of a procedure which must be
completed in the specified order
Result Result of a procedural step
• Enumeration
– Enumeration
Bullet lists
Figure 1: Caption Description of the content of a figure
Table 1: Description of the content of a table
Footnote Comment
Additional Components
Block Battery
System

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Gossen Metrawatt GmbH METRACELL BT PRO
4 Getting Started
1. Read and adhere to the product documentation. In particular
observe all safety information in the documentation, on the
instrument and on the packaging.
“Safety Precautions” 1
“Important Information” 2
“Documentation” 2
2. Familiarize yourself with the battery tester.
“The Instrument” 3
“Operation” 7
“Menu and Functions” 10
3. Install BT PRO Manager software and familiarize yourself with
the program 18.
4. Create a battery database 20.
5. Complete all required preparation in order to be able to per-
form measurements 18.
6. Perform measurements 30.
7. Evaluate your measurements “Viewing, Editing, Transferring
and Evaluating Measured Values” 53.
5 The Instrument
5.1 Scope of Delivery
Please check for completeness.
1 METRACELL BT PRO
1 Rubber holster
4 1.2 V AA batteries
1Powerpack
1 Set of multimeter test probes (KS29)
2 Alligator clips (KY95-3)
1 Set of Kelvin probes for 4-wire measurement (Z227D)
1 Carrying strap
1 Carrying case
1BTPROManager(batterytester management software)
1 Test report / factory calibration certificate
1 Condensed operating instructions
5.2 Optional Accessories
Some measurements necessitate optional accessories:
– AC/DC current clamp sensor
– CP1800 (Z204A) for measurements up to 1250 ADC or
– CP330 (Z202B) for measurements up to 300 ADC
– METRATHERM IR BASE temperature sensor (Z680A)
– Spring-loaded contact pins as replacement parts for the Kelvin
probes (Z227F)
Please contact our product support team for further information
on accessories 56.
Values recorded by and stored at the DMA 35 portable density
meter from Anton Paar GmbH can be transferred to the battery
tester. A description of how to use the density meter with the
METRACELL BT PRO is included in these operating instructions
(30). Please contact Anton Paar GmbH for any further infor-
mation concerning the DMA 35 density meter.
5.3 Instrument Overview
Front
Figure 3: Front Panel
2
11
3
4
5
6
7
10
9
1
8

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METRACELL BT PRO Gossen Metrawatt GmbH
Back
Figure 4: Back of Instrument
Symbols on the instrument and the included accessories:
5.4 Relevant Standards
The battery tester has been manufactured and tested in accor-
dance with the following safety regulations:
No. Function
1 Rubber holster (removable)
2 Infrared interface
3 Charging socket (charging cable connection)
4 Measurement input S−
5 Measurement input P−/COM
6 Measurement input S+
7 Measurement input P+
8 Carrying strap eyelets
9 Function keys
10 Display
11 RFID reader
No. Function
1 Retaining magnet
2 Retaining clip
3 Battery compartment cover (underneath the holster)
1
2
3
Warning concerning a point of danger
(attention, observe documentation!)
Double insulation (protection category II)
Charging socket location
(“Instrument Overview” 3)
Attention!
!
Attention!
Only rechargeable NiMH batteries may be in-
serted when the charger is connected.
Fuse
IRInfrared interface location
Static magnetic field
European conformity marking
The device may not be disposed of with household
trash “Returns and Environmentally Sound Dis-
posal” 57.
IEC 61 010-1
EN 61 010-1
VDE 0411-1
Safety requirements for electrical equipment
for measurement, control and laboratory use
–
General requirements
EN 60 529
VDE 0470, part 1
Test instruments and test procedures
Degrees of protection provided by enclosures
(IP code)
DIN EN 61 326-1
VDE 0843-20-1
Electrical equipment for measurement, con-
trol and laboratory use – EMC requirements –
Part 1: General requirements
!
Max.
6VDC
800 m

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Gossen Metrawatt GmbH METRACELL BT PRO
5.5 Measurement Inputs
All measurement inputs are referenced to ground and reference
potential, P–/COM input. The measurement inputs are not electri-
cally isolated from each other.
The measuring ranges depend on the respective measurement
inputs.
Note
600 V CAT III refers to measurement inputs S+, S−
and P−/COM.
5.6 LCD Display
All measured values, functions and settings can be observed at
the instrument’s display. As a rule, the display at the LCD panel
appears in two lines. Three and four-line displays are also used in
some cases, for example with measured values.
After switching the battery tester on, the initial display appears
including the instrument’s designation and the version, as well as
date and time.
Figure 5: Figure: Initial Display
After pressing any key while the initial display is shown, the battery
tester is switched to the main menu.
All other displays and information which appear at the instrument
depend on the previously selected function. The currently selected
function is always identified by a preceding arrow ->.
5.7 Function Keys / Navigation
5.8 RFID Reader
The display is surrounded by an RFID reader. If individual batteries
are equipped with an RFID tag (transponder), the tag can be
scanned before measurement, thus making it possible to subse-
quently assign the measurement data to the respective DUT auto-
matically 32.
125 kHz Technology
The RFID reader can only read RFID tags which use a frequency of
125 kHz. This technology offers several advantages:
• As one of the first RFID technologies, it’s widely used and easy
to obtain.
• It uses robust tags which are relatively insensitive to interfer-
ence from metals and liquids, which is crucial in battery envi-
ronments.
• Universal use (license-free ISM band)
• Minimal energy consumption (low-frequency long-wave band –
LF passive tags)
• Reading range: approx. 10 cm
• Small data transfer volumes with fast reading process (e.g.
only object ID as battery identification)
Reading RFID Tags
In order to read an RFID tag, hold the battery tester display 1 to
2 cm above the RFID tag. RF appears at display.
5.9 Attachment Options
The battery tester provides acoustic feedback for all important
procedural steps, e.g. readiness to record measured values. Con-
sequently, there’s no need to continuously observe the display.
In order to ensure freedom of movement, comfort and quick work
for the operator, the battery tester can be secured by means of
various retaining devices for the entire duration of measurement:
• Carrying strap:
The operator can use the carrying strap to suspend the battery
tester around his neck. The condensed operating instructions
include a description of how to attach the carrying strap.
• Retaining clip:
The operator can attach the battery tester to his belt with the
help of the retaining clip.
• Retaining magnet:
The battery tester can be attached to magnetic surfaces such
as battery cabinet doors with the retaining magnet.
Mea-
sure-
ment
input
Function
S− Input for measuring DC voltage.
Measuring range: ±2450.00 mV
DC
Resolution: 0.01 mV
Input impedance: > 10 M
Sensing lead to minus pole during resistance mea-
surement.
P−/COM Reference potential (ground potential) of all measure-
ment inputs.
Current conducting cable to minus pole during resis-
tance measurement.
S+ Measurement input for direct and alternating voltage
measurements.
Measuring
ranges: ±24.5000 VDC Resolution: 0.1 mV
±600.000 VDC Resolution: 1 mV
0…300.00 VAC Resolution: 10 mV
Input impedance: 1.6 M
Sensing lead to plus pole during resistance measure-
ment.
P+ Current conducting cable to plus pole during resis-
tance measurement.
Attention!
!
Max. 24 VDC
Maximum test voltage must not exceed
24 V DC at input P+.
The instrument is damaged if this value is
exceed.
<Date>
<Time>
BTpro
<Version>
Key Function
“Function” key
– Switch on and off (7)
– Press briefly: Return to next higher menu level or
cancel measurement
– Press and hold: End (30) or reactivate (30)
measurement
Scroll down key “▼”
Selection of menu items or digits in downward direction.
Scroll up key “▲”
Selection of menu items or digits in upward direction.
“OK” key
– Open menus
– Execute functions
– Confirm entries
– Select digits
– Proper termination of measurements
– Press and hold: repeat measurement (31)

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METRACELL BT PRO Gossen Metrawatt GmbH
5.10 Technical Data
Note
Technical data for the AC/DC current clamp sensors, the temperature sensor and the DMA 35 density meter can be found in the
respective product documentation.
5.11 Characteristic Values
Power Supply Rechargeable NiMH batteries, 4 ea. 1.2 V type AA (recommended: Ansmann maxE 2500 mAh)
Input Impedance Measurement input S+: 1.6 M
Measurement input S-: > 10 M
Ambient
Conditions
Operating temperature: +5 ... +40 °C
Storage temperature: -20 ... +60 °C
Relative humidity: Max. 75%, no condensation allowed
Elevation: Max. 2000 m
Electrical Safety
Measuring category: 600 V CAT III
Pollution degree: 2
Protection category: II per IEC 61 010-1/EN 61010-1/VDE 0411-1
Fuse link: 1 ea. SIBA 600 V/10 A FF
Test Voltage: Test voltage at measuring connection P+ may not exceed 24 VDC.
Electromagnetic
Compatibility (EMC)
Interference emission: EN 61326-1:2013, class A
Interference immunity: EN 61 326-1:2013
EN 61326-2-1:2013
Mechanical
Design
Protection: Housing: IP40
per DIN VDE 0470, part 1/EN 60 529
(protection against ingress of solid foreign objects: 1.0 mm dia., protection against ingress of
water: not protected)
Housing: Approx. 9.6 × 15.4 × 3.3 cm (W × H × D)
Weight: Approx. 0.45 kg (without rubber holster)
Display: LCD, monochrome, luminous
Data Interfaces
IrDA: Connection for DMA 35 Basic density meter (version 3)
RFID: Connection for RFID tag
Bluetooth®: Connection for PC, headset and DMA 35 density meter (version 4)
Internal Memory Up to 300,000 data records
Measuring Function Multimeter/
Connector
Multimeter/
Float/
Discharge/Charge
Multimeter/
Interval U/
Internal U+I
Multimeter Resistance Temperature
Measured Quantity VDC VDC VDC VAC Rel + Rct °C
Display Range -2450.00 …
+2450.00 mV
-24.5000 …
+24.5000 V
-600.000 …
+600.000 V
0.00 …
300.00 V
00.00 …
1000.00 m
-230.0 …
+230.0 °C 1)
1) Only applicable if the temperature sensor is connected to the battery tester.
Measuring Range -2450.00 …
+2450.00 mV
-24.5000 …
+24.5000 V
-600.000 …
+600.000 V
0.00 …
300.00 V
00.10 …
1000.00 m
Resolution 0.01 mV 0.1 mV 1 mV 10 mV 0.01 m0.1 °C
Input Impedance /
Test Current >10M1.6 M1.6 M1.6 Mlpapprox. 2 A > 10 M
Intrinsic Uncertainty ±(0.05%
rdg. + 10 d)
±(0.05%
rdg. + 10 d)
±(0.05%
rdg.+ 50 d)
±(2.0%
rdg. + 10 d) 2)
2) Within a frequency range of 45 to 500 Hz.
Note
The characteristic values of the AC/DC current clamp sensors and the DMA 35 density meter, as well as additional characteristic
values for the temperature sensor, can be found in the respective product documentation.
±(3.0%
rdg. + 8 d)
S+
Measuring
connec-
tions
• •••
S− •••
P+ •
P−/
COM • • ••••

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Gossen Metrawatt GmbH METRACELL BT PRO
6 Operation
6.1 Power Supply (rechargeable batteries)
Battery Operation
The battery tester is operated with rechargeable NiMH batteries.
Pre-charged batteries are shipped loose. You have already
inserted the batteries during initial startup (condensed oper-
ating instructions).
Operating time is approximately 10 hours when the batteries are
fully charged. A warning is generated when battery voltage drops
to below 4.8 V. The battery tester can be operated for approxi-
mately 1 more hour after this warning is generated.
Attention!
!
Leaking batteries can damage the device.
Check the batteries at short, regular intervals and after long
periods of storage.
Charging Process
It takes about 3½ hours to charge the batteries.
Attention!
!
Damage to the batteries or the instrument.
When charging, use only:
- The included rechargeable batteries or the
batteries specified in the technical data
- The included charger
Always connect the battery charger to the
battery tester before connecting the charger
to the electrical outlet.
Note
Do not switch the battery tester on during charging. The
battery tester may not be operated during charging and is
switched off automatically after 3 seconds.
The battery tester is switched off.
4 NiMH batteries are inserted
(see section on “Replacing the Batteries” 7 for information
on inserting batteries).
All measurement cables and accessories must be removed
from the battery tester.
1. Insert the charger’s connector plug into the battery tester’s
charging socket “Instrument Overview” 3.
2. Connect the charger to the 230 V mains outlet.
The batteries in the battery tester are charged.
3. Wait until the charging process has been completed.
It takes about 3½ hours to fully charge the batteries.
4. Unplug the charger from the electrical outlet.
5. Remove the connector plug from the battery tester’s charging
socket.
The batteries are charged. The battery tester can now be
used.
Replacing the Batteries
You can replace the batteries if necessary.
Attention!
!
Risk of injury due to contact with dangerous voltages.
Only use the battery tester when the battery compartment
cover is inserted and firmly screwed into place.
Required tools: Philips screwdriver
The battery tester must be switched off.
All measurement cables and accessories must be removed
from the battery tester.
1. Remove the holster from the battery tester: Press against the
bottom of the holster at the front and push it back and off of
the battery tester. As soon as the lower part of the battery tes-
ter is exposed, pull the instrument completely out of the hol-
ster.
2. Place the battery tester face down on a stable surface.
3. Loosen and remove the screw from the battery compartment
cover.
4. Unlock and remove the battery compartment cover.
5. Remove any batteries from the battery compartment.
6. Insert 4 approved rechargeable batteries into the battery com-
partment, making sure that the plus and minus poles match up
with the provided polarity symbols.
Attention!
!
Only the included batteries or those specified in the techni-
cal data (6) may be inserted and used.
7. Place the battery compartment cover onto the battery com-
partment and press it until it audibly clicks into place.
8. Secure the battery compartment cover with the screw.
9. Pull the holster back over the battery tester: Observe the cut-
outs in the holster for the front panel and the connections.
Push the battery tester into the holster at the top first as far as
it will go. Then press on the front at the bottom until the battery
tester is fully reinserted into the holster.
The batteries have now been inserted. The battery tester can
be used.
6.2 Switching the Instrument On/Off
Switching the Instrument On
1. Press and hold the Function key for approximately 2 seconds.
The initial display appears with the instrument’s designation
and version, as well as date and time (“LCD Display” 5).
2. Press any key.
The main menu appears at the display. The battery tester can
now be used.
Switching the Battery Tester Off
Normally, the battery tester is switched off manually. If the battery
tester has not been used for more than 10 minutes, it’s switched
off automatically.
1. Select POWER OFF in the main menu with the help of the ▼
key.
2. Press the OK key.
The display goes blank. The battery tester has been switched
off.
Note
The battery tester can also be switched off by pressing the
Function key. The key must be pressed and held for approx-
imately 10 seconds to this end.
However, it’s preferable to switch the instrument off using
the SWITCH OFF function.

8
METRACELL BT PRO Gossen Metrawatt GmbH
6.3 System Settings
You can enter basic settings to the battery tester.
Setting Date and Time
Note
Switch back and forth between standard time and daylight
savings time manually. The battery tester is not equipped
with an automatic time change function.
1. Switch the battery tester on 7.
2. Press the OK key.
The main menu appears.
3. Select SETTINGS from the main menu
using the ▼▲keys.
4. Press the OK key.
The SETTINGS menu is displayed.
5. Select SYSTEM using the ▼▲keys.
6. Press the OK key.
The SYSTEM menu is displayed.
7. Select SET TIME&DATE using the ▼▲keys.
8. Press the OK key.
The SET TIME&DATE menu is displayed. The cursor is positioned
at the first digit of the date display (dd.mm.yy: dd = day, mm =
month and yy = year).
9. Use the ▼▲keys to enter the first digit of the two-digit display
for the current day.
10. Press the OK key to move to the second digit.
11. Repeat steps 9. and 10. until the date has been completely
entered.
After entering and confirming the last digit for the year, the cur-
sor jumps to the first digit of the time display (ss:mm:hh: ss =
second, mm = minute and hh = hour)
12. Set the digits for time in the same way as described for setting
the date.
After entering the last digit for current time, your settings are
saved. The SYSTEM menu is displayed.
Date and time have been set.
Language Selection
Device language can be set to either English or German.
1. Switch the battery tester on 7.
2. Press the OK key.
The main menu appears.
3. Select SETTINGS from the main menu
using the ▼▲keys.
4. Press the OK key.
The SETTINGS menu is displayed.
5. Select SYSTEM using the ▼▲keys.
6. Press the OK key.
The SYSTEM menu is displayed.
7. Select SEL. LANGUAGE using the ▼▲keys.
8. Press the OK key.
The SEL. LANGUAGE menu is displayed.
9. Select the desired language using the ▼▲keys.
10. Press the OK key.
The device language is changed.
6.4 Establishing and Terminating Wireless Connections
The battery tester can be wirelessly connected to various devices:
• To the DMA 35 density meter from Anton Paar GmbH
– DMA 35 Basic (version 3) via infrared “Viewing, Editing,
Transferring and Evaluating Measured Values” 53
– DMA 35 (version 4) via Bluetooth®“DMA35 Measure-
ment (BT)” 51
• To a PC in order to view, evaluate and save measurement data
“Saving Measured Values to a PC (data backup)” 53
• To a headset for improved audibility of signals generated by the
instrument “Establishing and Testing a Bluetooth® Connec-
tion with a Headset” 8
Note
Although the battery tester can be paired with several
devices via Bluetooth®, simultaneous operation with sev-
eral devices via Bluetooth®is not possible.
Bluetooth®connections can be terminated when they’re no longer
needed.
Note
In case of connection problems, it may be helpful to termi-
nate (9) and reestablish Bluetooth®connections (see
references to specific sections above).
Establishing and Testing a Bluetooth®Connection with a Headset
Acoustic signals are used to confirm various actions before, during
and after a measuring procedure, as well as certain instrument
reactions.
The instrument can be paired with a headset, making it possible to
better hear these signals in noisy work environments. The connec-
tion can be checked in advance with a test signal.
Note
Read and adhere to the documentation included with your
headset.
The headset supports Bluetooth®profile “HSP”.
1. Switch the battery tester on 7.
2. Press the OK key.
The main menu appears.
3. Select SETTINGS from the main menu
using the ▼▲keys.
4. Press the OK key.
The SETTINGS menu is displayed.
5. Select BT-SETTINGS using the ▼▲keys.
The BT-SETTINGS menu is displayed.
6. Select LINK HEADSET using the ▼▲keys.
7. Press the OK key.
8. The PUT HEADSET IN PAIRING MODE -> prompt appears.
9. Set the headset to pairing mode. Read the documentation
included with your headset to find out how.
10. Position the headset close to the battery tester.
11. Acknowledge the PUT HEADSET IN PAIRING MODE -> prompt by
pressing the OK key.
BT PAIRING: SEARCH HEADSET! appears at the display.
12. The headset and the battery tester are connected to each
other. Pairing progress is displayed as a percentage. As soon
as the devices are successfully connected, SUCCESSFUL!
appears at the display.
13. Put on the headset.
14. Press the OK key.
The BT-SETTINGS menu is displayed.
15. Press the Function key.
The main menu appears.
16. Select SETTINGS from the main menu using the ▼▲keys.
17. Press the OK key.
The SETTINGS menu is displayed.
18. Select SYSTEM using the ▼▲keys.
19. Press the OK key.
The SYSTEM menu is displayed.
20. Select TEST HEADSET using the ▼▲keys.
21. Press the OK key.
A test signal is played back at the headset.

9
Gossen Metrawatt GmbH METRACELL BT PRO
Terminating the Bluetooth®Connection
All paired devices are disconnected when the Bluetooth®connec-
tion is terminated. It’s not possible to disconnect individual
devices.
1. Switch the battery tester on 7.
2. Press the OK key.
The main menu appears.
3. Select SETTINGS from the main menu
using the ▼▲keys.
4. Press the OK key.
The SETTINGS menu is displayed.
5. Select BT-SETTINGS using the ▼▲keys.
The BT-SETTINGS menu is displayed.
6. Select REM. PAIRINGS using the ▼▲keys.
7. Press the OK key.
The DO YOU REALLY WANT TO DELETE? prompt appears.
8. Press the OK key.
DELETING DATA! PLEASE WAIT appears briefly at the display.
REM. PAIRINGS appears at the display.
Bluetooth®connection to all paired devices has now been ter-
minated.
6.5 Testing the RFID Reader
The RFID reader can be tested (5).
A compatible RFID tag (125 kHz) is available.
1. Switch the battery tester on 7.
2. Press the OK key.
The main menu appears.
3. Select SETTINGS from the main menu
using the ▼▲keys.
4. Press the OK key.
The SETTINGS menu is displayed.
5. Select SYSTEM using the ▼▲keys.
6. Press the OK key.
The SYSTEM menu is displayed.
7. Select TEST TRANSP. using the ▼ key.
8. Press the OK key.
WAITING FOR RFID – – – – –> ( ) <– – – – – appears at the display.
Furthermore, a repetitive acoustic signal indicates readiness to
read.
9. Hold the battery tester’s RFID reader roughly 1 to 2 cm above
the RFID tag.
The RFID tag is read. The RFID tag’s number appears at the
display.
Refer to section on “Performing Measurements” 30 on how to
assign RFID tags to DUTs and read them out during measurement.

10
METRACELL BT PRO Gossen Metrawatt GmbH
7 Menu and Functions
7.1 Overview
On Main Menu Level 1st Submenu Level 2nd Submenu Level 3rd Submenu Level 4th Submenu Level
Start Display Keys Display A Keys Display Keys Display Keys Display Keys
MEASURE-
MENT
MULTIMETER
2.45 V DC (S-) Start measure-
ment
(short tone),
end measure-
ment
(short tone), dis-
play value
End mea-
sured value
recording,
return to
MULTIMETER
display
24.5 V DC (S+)
600 V DC (S+)
300 V AC (S+)
QUIT
FLOAT START
Start measure-
ment
(short tone),
end measure-
ment
(short tone),
display value
WANT TO QUIT
WITH SAVING?
WANT TO QUIT
WITHOUT
SAVING?
WAITING FOR
DMA35
DISCHARGE SELECT.BATT
Battery database
display,
brief tone indi-
cates RFID readi-
ness to read
In case of
manual selec-
tion, return to
display.
In case of
RFID, display
read result.
For RFID
CHARGE AREA: XXXX AREA: 0000
RESISTANCE
TEMPERATURE BATTERY:
XXXX BATTERY: 0000
CONNECTOR BLOCKS
XXXX* BLOCKS: 0000
INTERVAL U MIN: XX.XXX
[U/M]
MIN: 0000
[U/M]
INTERVAL U+I MAX: XX:XXX
[U/M]
MAX: 0000
[U/M]
DMA35 (IrDA) INT [s]: XXXX** INT [s]: 0000
DMA35 (BT)
CLAMP A:
XXXX *** CLAMP A: 0000
CLAMP mV:
XXXX *** CLAMP mV: 0000
QUIT QUIT
DATA
MENU
SHOW DATA
Display of
measurement
with indica-
tion of mea-
surementtype,
date, time etc.
Display mea-
sured values (see
key)
Repeat mea-
surement
Display mea-
sured value evalu-
ation
View evalua-
tion via all
keys, then au-
tomatic return
EXPORT (CSV)
BT CSV
EXPORT
(CONNECT)
DEVICE PAIRED?
EXPORT TARGET
OK?
SHOW
BAT-DEF
Battery data-
base display,
brief tone in-
dicates RFID
readiness to
read
In case of manual
selection, return
to display.
In case of RFID,
display read re-
sult.
For RFID
CLEAR DATA
DO YOU
REALLY WANT
TO DELETE?
DELETING
DATA!
PLEASE WAIT!
Brief tone
indicates
deletion,
return to
CLEAR DATA/
BATT. display
CLEAR
BAT-DEF
DO YOU
REALLY WANT
TO DELETE?
DELETING
DATA!
PLEASE WAIT!
QUIT
Initial
Display
2 sec.
ON

OK
ON
ON

OK
ON

OK
ON

OK
ON

OK
OK
ON

OK
OK
ON
OK
OK
ON

OK
OK
ON

OK
A
OK
OK
ON

OK
ON

OK
ON

OK
OK
ON

OK
OK
ON

OK
OK
ON
OK
OK

11
Gossen Metrawatt GmbH METRACELL BT PRO
(continued)
On Main Menu Level 1st Submenu Level 2nd Submenu Level 3rd Submenu Level 4th Submenu Level
Start Display Keys Display A Keys Display Keys Display Keys Display Keys
SETTINGS
SYSTEM
SET
TIME&DATE
DATE: XX.XX.X
TIME:
XX:XX:XX
SEL. LANGUAGE ENGLISH
DEUTSCH
Menu is dis-
played in se-
lected lan-
guage,
return to SEL.
LANGUAGE
display
TEST HEADSET Read out test
signal
TEST TRANSP.
WAITING
FOR RFID
-----> ( ) <----
-
WAITING FOR
RFID
<RFID
Number>
QUIT
MEASURE-
MENTS
POLARITY ON POLARITY ON Brief tone sig-
nals selection,
display re-
mains in
menu
POLARITY OFF POLARITY OFF
QUIT
BT-SETTINGS
LINK
COMPUTER
BT
PAIRING:
WAITING FOR
PC
List with
all detected
BT devices is
displayed.
LINK HEADSET
PUT HEADSET
IN PAIRING
MODE ->
BT PAIRING:
SEARCH
HEADSET
LINK DMA35
V4
PLEASE DIS-
COVER BTpro
WITH DMA35
REM.
PAIRINGS
DO YOU RE-
ALLY WANT TO
DELETE?
DELETING
DATA!
PLEASE WAIT!
QUIT
CSV-EXPORT
EXPORT
TARGET
SCANNING
FOR
BT DEVICES.
NO BT
DEVICES
FOUND
Detected BT
devices are
listed
FILENA. FIXED FILENA. FIXED
FILEN. UNIQ. FILEN. UNIQ.
QUIT
FACTORY
ONLY
FACTORY USE
ONLY
PASSWORD:
XXXXX
QUIT
INFO
VERSION:
VX.XX
ENTRIES:
XXX%
MEMORY:
XXX%
BATTERY:
XXX%
POWER OFF
OK
ON

OK
ON

OK
ON

OK
A
ON

OK
B
OK
ON

OK
ON

OK
OK
ON

OK
ON

OK
ON
OK
ON
OK
OK
ON

OK
ON

OK
OK
OK
OK
ON

OK
OK
OK

12
METRACELL BT PRO Gossen Metrawatt GmbH
7.2 Display Menu
The initial display appears after switching the battery tester on
(7). The main menu is then displayed after pressing any key.
If you’re already in a submenu, press the FUNCTION key repeatedly
until the display is returned to the main menu.
This is the central menu from which all other hierarchically subordi-
nate menus and functions can be accessed. All main menu func-
tions can be selected with the help of the ▼▲keys.
Table 10: List of Functions Available in the Main Menu
7.3 Measurement Menu
Select MEASUREMENT in the main menu and then press the OK
key in order to open the menu.
Table 11: List of Functions Available in the MEASUREMENT Menu
General Key
-> MEASUREMENT
DATA
Display menu/function,
the arrow indicates the selected function.
DELETING DATA
PLEASE WAIT
Feedback or information after action
BLOCK 12.2500V
0004/4
AN:0001 BN:0010
Display measured value (example)
Display measured value evaluation
Descriptive text Explanation of measured value, parameter
and other displays
Scroll within menu levels and functions.
Start function,
submenu selection
Switch on,
termination of an action currently being
executed
Move up one view in the menu.
Move down one view in the menu.
Jump to submenu level (press briefly).
Jump to submenu level (press and hold).
Jump back to higher menu level (initial po-
sition).
Remains at current position.
No action required.
Further action and displays depend on
systems to be linked or downstream sys-
tems.
0Currently selected digit (display with black
background).
XPlaceholder for one digit.
*Parameter not for measuring functions
INTERVAL U and INTERVAL U+I
** Parameters only for measuring functions
INTERVAL U and INTERVAL U+I
*** Parameters only for measuring functions
INTERVAL U and INTERVAL U+I
Set/select special key assignments for
parameters
Cursor for selecting the digit to be
changed (inverted cursor), storage takes
place after selection of the last digit, then
return to higher menu level
Increase digit
Decrease digit
Cancel entry/selection of digits without
saving, return to higher menu level
RFID tags must be held roughly 1 to 2 cm above the dis-
play
=


=
OK
ON =
A
=
OK
=

=

ON =
B
Function Description
MEASUREMENT Available measuring functions 12
DATA MENU Data management functions 15
SETTINGS Parameter settings for system, measure-
ments and data transfer 16
INFO Information concerning firmware version,
battery charge level and memory occupancy
17
POWER OFF Switch off the battery tester 7.
Measurement Description
MULTIMETER DC and AC voltage measurements without
storing measured values
FLOAT Periodic measurement of block voltages.
This measurement is used for quarterly record-
ing of float voltage, for example in UPS sys-
tems.
DISCHARGE Multiple measurement of block voltages at
short intervals during discharging (capacity
test)
CHARGE Multiple measurement of block voltages at
short intervals during charging (capacity test)
RESISTANCE Periodic measurement of the internal resis-
tance of the blocks
TEMPERATURE Measurement of block temperature with an IR
temperature sensor
CONNECTOR Measurement of voltage drop to determine
connector loss between blocks
INTERVAL U Measurement of the voltage of a battery at any
desired time intervals (voltage curve)
INTERVAL U + I Measurement of the voltage and current of a
battery at any desired time intervals (voltage
and current curves)
Example: Recording of discharge current
during discharging.
DMA 35 (IrDA) Measurement of acid density and electrolyte
temperature within a block.
Measurements are performed with the DMA 35
Basic density meter (version 3) from Anton
Paar GmbH. Data are transferred from the sen-
sor to the battery tester via infrared (Infrared
Data Association – IrDA).
DMA 35 (BT) Measurement of acid density and electrolyte
temperature within a block.
Measurements are performed with the DMA 35
density meter (version 4) from Anton Paar
GmbH. Measured values are transferred from
the sensor to the battery tester via Bluetooth®
QUIT Exit the MEASUREMENT menu and return to the
main menu.

13
Gossen Metrawatt GmbH METRACELL BT PRO
Note
The required parameters for the device under test must be
defined before starting a measurement. Use the battery
database to this end (“Performing Measurements” 30
and “Transferring the Battery Database to the Battery
Tester” 23).
Manual entries should only be made in exceptional cases.
Multimeter
Select the MEASUREMENT MULTIMETER function sequence via
the main menu and press the OK key in order to open the menu.
Table 12: Possible Measuring Ranges for MULTIMETER Measure-
ment
Float, Discharge, Charge and Resistance
In order to open the menu, select one of the following function
sequences from the main menu:
MEASUREMENT FLOAT or MEASUREMENT
DISCHARGE or MEASUREMENT CHARGE or MEASUREMENT
RESISTANCE, and then press the OK key.
Table 13: Parameters and Functions for the FLOAT, DISCHARGE,
CHARGE and RESISTANCE Measurements
Temperature
Select the MEASUREMENT TEMPERATURE function sequence
via the main menu and press the OK key in order to open the menu.
Table 14: Parameters and Functions for the TEMPERATURE Mea-
surement
Start / Battery Parameters Menu for Connector Measurement
Select the MEASUREMENT CONNECTOR function sequence via
the main menu and press the OK key in order to open the menu.
Table 15: Parameters and Functions for the CONNECTOR Mea-
surement
Measuring
Range Description
2.45 VDC (S–) Measuring range selection for direct voltage
measurement via measuring socket S–
24.5 VDC (S+) Measuring range selection for direct voltage
measurement via measuring socket S+
600 VDC (S+) Measuring range selection for direct voltage
measurement via measuring socket S+
300 VAC (S+) Measuring range selection for alternating voltage
measurement via measuring socket S+
QUIT Return to MEASUREMENT menu
Function/
Setting Description
START Measurement is started after selecting or
entering the battery parameters.
SELECT.BATT The menu for selecting and loading a stored
battery database is accessed via this function.
If a database exists, the stored data records
appear.
AREA: XXXX Manual assignment of a unique four-digit
number for the location of the battery system
BATTERY: XXXX Manual assignment of a unique four-digit
number as a designation of the battery in the
battery system
BLOCKS:XXXX Manual assignment a unique four-digit num-
ber identifying the number of blocks within the
battery
MIN: XX.XXX V Manual measuring range setting:
lower voltage limit value
MAX: XX.XXX V Manual measuring range setting:
upper voltage limit value
(max. +24.50 V)
QUIT Return to MEASUREMENT menu
Function/
Setting Description
START Measurement is started after selecting or
entering the battery parameters.
SELECT.BATT The menu for selecting and loading a stored
battery database is accessed via this function.
If a database exists, the stored data records
appear.
AREA: XXXX Manual assignment of a unique four-digit
number for the location of the battery system
BATTERY: XXXX Manual assignment of a unique four-digit
number as a designation of the battery in the
battery system
BLOCKS:XXXX Manual assignment a unique four-digit
number identifying the number of blocks
within the battery
MIN: XXXX.X C Manual measuring range setting:
lower temperature limit value
(max. –230 °C)
MAX: XXXX.X C Manual measuring range setting:
upper temperature limit value
(max. +230 °C)
QUIT Return to MEASUREMENT menu
Function/
Setting Description
START Measurement is started after selecting or
entering the battery parameters.
SELECT.BATT The menu for selecting and loading a stored
battery database is accessed via this function.
If a database exists, the stored data records
appear.
AREA: XXXX Manual assignment of a unique four-digit
number for the location of the battery system
BATTERY: XXXX Manual assignment of a unique four-digit
number as a designation of the battery in the
battery system
BLOCKS:XXXX Manual assignment a unique four-digit num-
ber identifying the number of blocks within the
battery
MIN: XXXX.X mV Manual measuring range setting:
lower voltage limit value
MAX: XXXX.X mV Manual measuring range setting:
upper voltage limit value
(max. +2400.0 mV)
QUIT Return to MEASUREMENT menu

14
METRACELL BT PRO Gossen Metrawatt GmbH
Start / Battery Parameters Menu for Interval U Measurement
Select the MEASUREMENT INTERVAL U function sequence via
the main menu and press the OK key in order to open the menu.
Table 16: Parameters and Functions for the INTERVAL U Mea-
surement
Interval U + I
Select the MEASUREMENT INTERVAL U+I function sequence via
the main menu and press the OK key in order to open the menu.
Table 17: Parameters and Functions for INTERVAL U+I Measure-
ments
DMA35 (IrDA and Bluetooth®)
Select the MEASUREMENT DMA35 (IrDA) or DMA35 (BT) func-
tion sequence via the main menu and then press the OK key in order
to open the menu.
Table 18: Parameters and Functions for the DMA35 (IrDA) and
DMA35 (BT) Measurements
Function/
Setting Description
START Measurement is started after selecting or
entering the battery parameters.
SELECT.BATT The menu for selecting and loading a stored
battery database is accessed via this function.
If a database exists, the stored data records
appear.
AREA: XXXX Manual assignment of a unique four-digit
number for the location of the battery system
BATTERY: XXXX Manual assignment of a unique four-digit
number as a designation of the battery in the
battery system
INT [s]: XXXX Manually adjustable time interval (in seconds)
for recording the measured value.
(min. 1 second)
MIN: XXX.XX V Manual measuring range setting: lower volt-
age limit value
Note
Same as discharge cut-off voltage. If
the limit value is fallen short of, the
instrument generates an acoustic sig-
nal at regular intervals. This indicates
that the discharging process has been
completed and measurement can be
ended.
MAX: XXX.XX V Measuring range setting: upper voltage limit
value
Note
Same as charge cut-off voltage. If the
limit value is exceeded, the instrument
generates an acoustic signal at regular
intervals. This indicates that the
charging process has been completed
and measurement can be ended.
(max. +600 V)
QUIT Return to MEASUREMENT menu
Function/
Setting Description
START Measurement is started after selecting or
entering the battery parameters.
SELECT.BATT The menu for selecting and loading a stored
battery database is accessed via this function.
If a database exists, the stored data records
appear.
AREA: XXXX Manual assignment of a unique four-digit
number for the location of the battery system
BATTERY: XXXX Manual assignment of a unique four-digit
number as a designation of the battery in the
battery system
INT [s]: XXXX Manually adjustable time interval (in seconds)
for recording the measured value.
(min. 1 second)
MIN: XXX.XX V Manual measuring range setting:
lower voltage limit value
Note
Same as discharge cut-off voltage. If
the limit value is fallen short of, the
instrument generates an acoustic sig-
nal at regular intervals. This indicates
that the discharging process has been
completed and measurement can be
ended.
MAX: XXX.XX V Manual measuring range setting:
upper voltage limit value
Note
Same as charge cut-off voltage. If the
limit value is exceeded, the instrument
generates an acoustic signal at regular
intervals. This indicates that the
charging process has been completed
and measurement can be ended.
(max. +600 V)
CLAMP A: XXXX Manual measuring range setting: Current
value of the transformation ratio of the current
clamp
CLAMP mV: XXXX Manual measuring range setting: Voltage
value of the transformation ratio of the current
clamp
QUIT Return to MEASUREMENT menu
Function/
Setting Description
START Measurement is started after selecting or
entering the battery parameters.
SELECT.BATT The menu for selecting and loading a stored
battery database is accessed via this function.
If a database exists, the stored data records
appear.
AREA: XXXX Manual assignment of a unique four-digit
number for the location of the battery system
BATTERY: XXXX Manual assignment of a unique four-digit
number as a designation of the battery in the
battery system
BLOCKS:XXXX Manual assignment a unique four-digit num-
ber identifying the number of blocks within the
battery
MIN: X.XXXX Manual measuring range setting:
lower limit value for acid density
MAX: X.XXXX Manual measuring range setting:
upper limit value for acid density
QUIT Return to MEASUREMENT menu
Function/
Setting Description

15
Gossen Metrawatt GmbH METRACELL BT PRO
7.4 Data Menu
Select DATA MENU in the main menu and then press the OK key in
order to open the menu.
Table 19: Functions in the DATA Menu
Measured Values
Select the DATA SHOW DATA function sequence from the main
menu and press the OK key in order to open the MEASUREMENTS
menu.
Table 20: Information on Stored MEASUREMENTS
Navigate through all of the measurements in the MEASUREMENT
VALUES menu using the ▼▲keys. After selecting a given mea-
surement and pressing the OK key, measured values and mea-
sured value details are displayed.
Table 21: Measured FLOAT Values
Table 22: Measured DISCHARGE and CHARGE Values
Table 23: Measured RESISTANCE Values
Table 24: Measured TEMPERATURE Values
Table 25: Measured CONNECTOR Values
Table 26: Measured INTERVAL U Values
Table 27: Measured INTERVAL U + I Values
Table 28: Measured DMA (IrDA) and DMA35 (BT) Values
Function Description
SHOW DATA Display of stored measured values
EXPORT (CSV) Transfer of stored measured values to the PC
as CSV file
SHOW BATT-DEF Display of the battery database
CLEAR DATA Complete, irretrievable deletion of all stored
measured values
CLEAR BAT-DEF Complete, irretrievable deletion of a battery
database
QUIT Return to the main menu
Designation Description
Measuring Func-
tion
Designation of the measuring function
[XXXXX] Meaning varies depending on measurement:
– Number of blocks over which measure-
ments have been performed
– Number of measurements (e.g. for
INTERVAL U)
DD.MM.YY Date of measurement
HH:MM:SS Time of measurement
AN:XXXX Location number assigned to the battery sys-
tem
BN:XXXX Battery number assigned to the battery
Designation Description
BLOCK Measurement over one block
XXXX/X Battery number / number of blocks
X.XXXX V Measured voltage value
AN:XXXX Location number assigned to the battery
system
BN:XXXX Battery number assigned to the battery
Designation Description
BLOCK Measurement over one block
XXXX/X Battery number / number of blocks
X.XXXX V Measured voltage value
AN:XXXX Location number assigned to the battery
system
BN:XXXX Battery number assigned to the battery
Designation Description
BLOCK Measurement over one block
XXXX/X Battery number / number of blocks
XX.XXXX V Measured voltage value
R(el) = Measured value of the internal electrical resis-
tance of a block
R(ct) = Measured value of the internal electrochemical
resistance of a block
Designation Description
BLOCK Measurement over one block
XXXX/X Battery number / number of blocks
XXXX.X C Measured temperature value
AN:XXXX Location number assigned to the battery
system
BN:XXXX Battery number assigned to the battery
Designation Description
BLOCK Measurement over one block
XXXX/X Battery number / number of blocks
XXXX.XX mV Measured voltage value
AN:XXXX Location number assigned to the battery
system
BN:XXXX Battery number assigned to the battery
Designation Description
COUNT: Number of measurements performed over a
freely defined time interval
X.XXX V Display of overall battery voltage which was
measured during a freely defined time interval
TIME. Time interval during which the battery’s overall
voltage was measured
Designation Description
COUNT: Number of measurements performed
X.XXX V Overall battery voltage measured during the
defined time interval
X.XXXX A Battery current measured during the defined
time interval
TIME. Time interval during which the battery’s overall
voltage and battery current were measured
Designation Description
BLOCK Measurement over one block
XXXX/X Battery number / number of blocks
X.XXX kg/l Acid density
X.XXX C Temperature
AN:XXXX Location number assigned to the battery
system
BN:XXXX Battery number assigned to the battery

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METRACELL BT PRO Gossen Metrawatt GmbH
Menu for the Display of Measured Value Evaluations
In addition to individual measurements, measured value evalua-
tions can also be displayed. Select a measurement in the SHOW
DATA menu using the ▼▲keys. Then press and hold the OK key
until the menu with the measured value evaluations is displayed.
Complete information is available in the section on “Viewing, Edit-
ing, Transferring and Evaluating Measured Values” 53.
Table 29: Measured Value Evaluations
7.5 The SETTINGS Menu
Select SETTINGS in the main menu and then press the OK key in
order to open the menu.
Tabl e 3 0 : SETTINGS Menu Functions
SYSTEM
Select the SETTINGS SYSTEM function sequence from the main
menu and press the OK key in order to open the SYSTEM menu.
Table 31: Functions in the SYSTEM Menu
MEASUREMENTS
Select the SETTINGS MEASUREMENTS function sequence from
the main menu and press the OK key in order to open the MEASURE-
MENTS menu.
Table 32: List of Functions Available in the MEASUREMENTS Menu
BT-SETTINGS
Select the SETTINGS BT SETTING function sequence from the
main menu and press the OK key in order to open the BT SETTINGS
menu.
Table 33: Functions in the BT SETTINGS Menu.
CSV EXPORT
Select the SETTINGS CSV EXPORT function sequence from the
main menu and press the OK key in order to open the CSV EXPORT
menu.
Table 34: Functions in the CSV EXPORT Menu
Designation Description
SUM: [XXXX] Sum of all measured values measured over
the blocks of a battery. The number of blocks
over which measurement has been performed
is shown in square brackets (e.g. for FLOAT or
RESISTANCE).
NUMBER [XXXX] Number of all measured values that were
measured during a multiple measurement over
a block. The number of measurements is
shown in square brackets (e.g. for TEMPERA-
TURE).
AVER.: Mean value of the measured values measured
either over all blocks of a battery or over one
block in the case of a multiple measurement.
MIN: XXXX Smallest measured value of the measurement
with indication of the number of the block at
which the measured value was measured.
MAX: XXXX Largest measured value of the measurement
with indication of the number of the block at
which the measured value was measured.
Function Description
SYSTEM System settings
MEASUREMENTS Settings for measured value recording
BT-SETTINGS Settings for Bluetooth®connection
CSV EXPORT Settings for the transmission of data and
measured values as a CSV file
SERVICE MENU This function is for service only (“Service
and Support” 56). Access is restricted by
means of a password.
QUIT Exit the SETTINGS menu and return to the main
menu.
Function Description
SET TIME&DATE Settings for device date and time
SEL. LANGUAGE User language selection
TEST HEADSET Playback of a test signal at a headset in order
to check the Bluetooth®function
QUIT Return to SETTINGS menu
Function Description
POLARITY ON Switch polarity on: the negative or positive
measured value is displayed.
POLARITY OFF Switch polarity off: the absolute value of the
measured value is displayed.
QUIT Return to SETTINGS menu
Function Description
LINK COMPUTER Function for establishing a Bluetooth® con-
nection between the battery tester and a PC
LINK HEADSET Function for establishing a Bluetooth®
connection between the battery tester and a
headset
LINK DMA35 V4 Function for establishing a Bluetooth®
connection between the battery tester and a
DMA 35 density meter (version 4) from Anton
Paar GmbH
REM. PAIRINGS Termination of the Bluetooth®connection to
all paired devices
(device connections cannot be terminated
individually)
QUIT Return to SETTINGS menu
Function Description
EXPORT TARGET Selection of the destination (e.g. PC) for the
transmission of measured values as a CSV file
(a Bluetooth®connection must first be estab-
lished between the battery tester and the PC)
FILENA. FIXED Function for defining a uniform filename when
transferring measured values to a PC as a
CSV file
The file is named “BTPRO_Export.csv”.
FILEN. UNIQ. Function for generating different filenames
each time measured values are transferred to
a PC as a CSV file The file is named “BT-
PRO_Export_<System-
ID>_<Date>_<Time>.csv”.
QUIT Return to SETTINGS menu

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Gossen Metrawatt GmbH METRACELL BT PRO
7.6 INFO Menu
Select INFO in the main menu and then press the OK key in order
to open the menu.
Table 35: Information in the INFO Menu
Function Description
VERSION: The battery tester’s current firmware version
ENTRIES: Display of memory occupancy for measuring
procedures as a percentage
100% = full storage capacity available
0% = no storage capacity available
MEMORY: Display of memory occupancy for measured
values as a percentage
100% = full storage capacity available
0% = no storage capacity available
BATTERY Battery charge status (in volts)

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METRACELL BT PRO Gossen Metrawatt GmbH
8 “BT PRO Manager” PC Software
“BT PRO Manager” PC software is an important tool when using
the battery tester. The program can be used to:
• Create, maintain and manage the battery database (DUT man-
agement)
• Transfer and save measurement data
• View measurement results and create measurement evalua-
tions (reports)
Note
We strongly recommend using BT PRO Manager software!
The battery tester can be used without the software, but in
this case the important and convenient functions listed
above are unavailable.
This section provides you with all the information you’ll need to
work with BT PRO Manager.
When working with the battery tester and BT PRO Manager for the
first time, begin by following the instructions included in the sec-
tions up through “Creating the Battery Database” in the order in
which they appear.
If you’ve already performed measurements and would like to
import the measurement data into BT PRO Manager, as well as
view and create reports, go directly to “Importing Measurement
Data” 24.
8.1 Installation, Launching the Program and Update
Download
The current version of the software can be downloaded free of
charge as a ZIP file from the “myGMC” service portal on Gossen
Metrawatt GmbH’s website:
http://www.gmc-instruments.de/services/mygmc/
First of all, you’ll have to register yourself and your test instrument.
You’re then provided with access to the download.
System Requirements
• PC with Microsoft Windows 7®or higher
• Screen resolution of at least 1024 × 768
• At least 2 GB available hard disk memory
• At least 8 GB RAM
Installation
You’ve already downloaded the installation file 18.
Your system fulfills the specified requirements 18.
1. Run the installation file.
The installation wizard appears.
2. Follow the instructions displayed by the installation wizard.
The software is installed on your PC.
Launching the Program
BT PRO Manager has been installed on your PC 18.
The program can be launched by means of the usual Windows®
procedures, e.g. by using the desktop shortcut.
Update
Software updates provide new features and bug fixes.
All settings, measurement data and the battery database are
retained when the software is updated.
1. Check to see which software version is currently available 
“Download” 18.
2. Start BT PRO Manager.
The Login dialog appears.
3. Click the button.
The Login dialog is closed.
4. Click the Information button.
The Information dialog appears and displays the currently
installed software version.
5. Compare the software versions.
– If the versions differ: continue.
– If the versions are identical: no action is required.
6. Download the latest version of the software.
7. Run the installation file.
The installation wizard appears.
8. Follow the instructions displayed by the installation wizard.
The software is updated.
8.2 Overview
8.3 Defining the Data(base) Storage Location
All data (measurement data, battery databases etc.) available in
BT PRO Manager are stored in a database.
Access is protected with the help of user accounts 19.
This database can be stored locally at a PC or remotely on a
server. The main difference between local and server-based data-
bases is the number of user accounts: you can set up as many as
10 user accounts for a local database. Only one administrator can
be set up for a server database.
If necessary, you can create several databases and switch
amongst them. As a service provider, for example, you can create
separate databases for each customer.
A local database is created when BT PRO Manager is installed.
This is selected by default and can be used immediately.
No. Meaning
1Information
Shows information about the program.
2Database status
3Definitions
Defines batteries including all associated information
such as blocks and location
4Display measurement series
Displays data associated with already performed mea-
surements
5Read in measurement series
Reads in measurement data from the battery tester or
from a stored CSV file
6User administration
Defines user accounts for login
7General settings
Defines general settings
8Database settings
Defines settings for the database
9Display selection
Elements can be selected here for which further informa-
tion is displayed in the detail display area (10).
10 Detail display area
Displays detailed information about the element selected
in the display selection (9). Some of this information can
be edited or deleted.
2
1
3
4
5
6
910
7
8