JUMO Wtrans E01 User manual

90292800T90Z001K000
V2.00/EN/00599280/2020-06-16
JUMO Wtrans E01
Measuring probe for humidity, temperature,
and CO2 with wireless data transmission
Operating Manual

Contents
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.2 Brief description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.3 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.4 Connection elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.4.1 View from below . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.4.2 View from above . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.4.3 Rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
1.5 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
1.5.1 Measuring probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
1.5.2 Sensors and lambda/4 antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
1.6 Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2 Identifying the device version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1 Nameplate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.2 Order details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
2.3 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
2.4 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3 Preparing the measuring probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1 Receiver software version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.2 Supply with batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.2.1 Inserting/changing the battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.2.2 Safety information concerning lithium batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3.2.3 Battery operating life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
3.2.4 Disposal of batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
3.3 Supply with external voltage supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
3.4 Antenna installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
3.4.1 Installing the antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
3.4.2 Installing antenna cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
4 Transmission range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.1 General information about wireless transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
4.2 Possible impairment of wireless transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
5 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.1 Notes about mounting, arrangement, and safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
5.2 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
5.3 Mounting and dismounting the measuring probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Contents
6 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.1 Installation notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
6.2 Voltage supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
6.3 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
6.4 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
6.5 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
7 Introduction to operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.1 Display and control elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
7.2 Normal display (NA) (displaying measured values) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
7.3 Startup level (In) (measuring and transmitting measured values quickly) . . . . . . . . . . . . . .37
7.4 Parameter level (PA) (configuring parameters). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
8 Operating the measuring probe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
8.1 Normal display (NA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
8.2 Displaying measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
8.3 Changing to different levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
8.4 Code request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
9 Configuring the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.1 Startup level (In) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
9.2 Parameter level (PA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
9.2.1 Editing parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
9.2.2 General parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
9.2.3 Measured value-specific parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
10 Setup program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
10.1 Setup program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
10.1.1 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
10.2 Hardware and software requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
10.3 Establishing the connection between the laptop/PC and measuring probe . . . . . . . . . . . . .52
10.4 Configuring the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
10.4.1 Establishing the communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
10.4.2 Extracting the current transmitter parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
10.4.3 Editing the transmitter parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
10.4.4 Transferring new parameters to the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
11 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
11.1 JUMO Wtrans E01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
11.1.1 Sensor inputs 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
11.1.2 Output (wireless transmission) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

Contents
11.1.3 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
11.1.4 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
11.1.5 Environmental influences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
11.1.6 Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
11.2 Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
12 China RoHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Contents

7
1 Introduction
1 Introduction
1.1 Safety information
General
This manual contains information that must be observed in the interest of your own safety and to avoid
material damage. This information is supported by symbols which are used in this manual as indicated.
Please read this manual before starting up the device. Store this manual in a place that is accessible to
all users at all times.
If difficulties occur during startup, please do not intervene in any way that could jeopardize your warranty
rights!
Warning symbols
CAUTION!
This symbol in connection with the signal word indicates that material damage or data loss will occur
if the respective precautionary measures are not taken.
CAUTION!
This symbol indicates that components could be destroyed by electrostatic discharge (ESD = Electro
Static Discharge) if the respective cautionary measures are not taken.
Only use the ESD packages intended for this purpose to return device inserts, assembly groups, or as-
sembly components.
Note symbols
NOTE!
This symbol refers to important information about the product, its handling, or additional benefits.
READ THE DOCUMENTATION!
This symbol, which is attached to the device, indicates that the associated documentation for the de-
vice must be observed. This is necessary to identify the nature of the potential hazard, and to take
measures to prevent it.
REFERENCE!
This symbol refers to additional information in other sections, chapters, or other manuals.

1 Introduction
8
1.2 Brief description
The Wtrans E01 measuring probe is used in combination with a Wtrans receiver for recording measured
values using digital sensors for humidity, temperature, and CO
2
. The measuring probe has two inputs
with plug connectors M12 × 1 to which the sensors can be connected and where the sensors are detect-
ed in any combination (plug and play).
Other measurands can be derived from the measured values determined. Up to four measured values
are recorded. They are transmitted to the receiver of the Wtrans measuring system at a radio frequency
of 868.4 MHz and displayed there. They are available as digital or analog output variables. The voltage
is supplied externally (DC 18 to 30 V) or internally by means of four lithium batteries (size AA). The bat-
tery operating life with the recommended type of battery is one year (with default settings and one sen-
sor).
The electronics of the measuring probe with backlit LCD display and operating keys are encased in a
wall-mounted case (protection type IP65). The ambient temperature range of the measuring probe is
-30 to +80 °C, but the differing ambient temperatures of the sensors and lithium batteries must also be
considered. The measuring probe can be configured using the USB interface or the operating keys.
1.3 Block diagram
Wtrans E01
Voltage supply
Battery 4× 1.5 V
or
external voltage supply
DC 18 to 30 V
Transmission unit
Radio frequency
868.4 MHz
Input
2 connections for
humidity and temperature,
CO or Pt1000 RTD
temperature probe, class A
in 4-wire circuit
2
Keypad
4 keys
for operation
and configuration
Display
LCD display
for measured value display
and configuration
USB interface
Setup

9
1 Introduction
1.4 Connection elements
1.4.1 View from below
1.4.2 View from above
(1) (2)
(4)(3)
(1) Connection for sensor 1: sensor for humidity and temperature, sensor for CO
2
, or RTD tempera-
ture probe Pt1000
(2) Connection for USB connector (Mini-B): if the interface is not needed or after a configuration, the
opening on the device must be sealed using the sealing screw M12 × 1.5 supplied (accessories
set) with the help of the mounting key (accessories set).
(3) Connection for external voltage supply: if the voltage is supplied externally, the cable fitting sup-
plied (accessories set) must be used instead of the M12 × 1.5 sealing screw. Install the cable fit-
ting instead of the sealing screw labeled with (3).
(4) Connection for sensor 2: sensor for humidity and temperature, sensor for CO
2
, or RTD tempera-
ture probe Pt1000
(5)
(5) Connection for lambda/4 antenna, or optionally lambda/4 antenna with antenna cable and anten-
na holder for wall mounting

1 Introduction
10
1.4.3 Rear view
(7)(6) (9)(8)
(6) Battery compartment for inserting batteries and connecting to external voltage supply
(7) Recess for DIN rail for mounting the case
(8) Pressure compensation element (do not tape)
(9) Unlocking to release the device from the DIN rail

11
1 Introduction
1.5 Dimensions
1.5.1 Measuring probe
1.5.2 Sensors and lambda/4 antenna
Sensor for humidity and temperature, and CO
2
, RTD temperature probe Pt1000, and lambda/4 antenna
(from left to right)
12Ø
10
4Ø
9
76
M12 × 1
9Ø
~91
SMA connection
8
M12 × 1
12Ø
8
12Ø
91
M12 × 1
18.5Ø
96
11

1 Introduction
12
1.6 Declaration of conformity
NOTE!
Hereby JUMO GmbH & Co. KG declares that the radio equipment type Wtrans E01 is in compliance with
Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following Inter-
net address: qr-902928-en.jumo.info
qr-902928-en.jumo.info

13
2 Identifying the device version
2 Identi fying t he device version
2.1 Nameplate
Position
The nameplate is affixed to the back cover of the device.
(1) Device type
(2) Voltage supply
(3) Fabrication number
(4) Radio frequency
(5) Transmitter detection (transmitter ID)
(6) Part no.
(7) Date of manufacture 1423 = 2014/23 (year/calendar week)
Device type
Compare the specifications on the nameplate with your order documents. The supplied device version
can be identified using the order code in chapter 2.2 "Order details", Page 14.
Part no.
The part no. uniquely identifies an article in the catalog. It is important for communication between the
customer and the sales department.
Fabrication number
Among other things, the fabrication number indicates the date of manufacture (year/calendar week) and
the version number of the hardware.
Date of manufacture
Example: fabrication number = 0189482101014230007
The characters in question are digits 12, 13, 14, and 15 (from the left).
The device was produced in the 23rd calendar week of 2014.
Radio frequency
The radio frequency identifies the frequency used by the device for transmission. In the 868 MHz band
(Europe), the transmission is carried out at 868.4 MHz.
Transmitter detection (transmitter ID)
The transmitter ID is a default setting. It must be entered and activated on the receiver to establish a
connection between the transmitter and receiver. The transmitter ID can be changed to customer-spe-
cific requirements using the setup program. The user must ensure that several transmitters with identical
transmitter IDs are not active.
(1)
(2)
(3) (5)
(6)
(7)
(4)
36039 Fulda, Germany
www.jumo.net

2 Identifying the device version
14
2.2 Order details
2.3 Scope of delivery
(1) Basic type
902928/10 Wtrans E01
Measuring probe for humidity, temperature, and CO
2
with wireless data transmission
(2) Version
8 Standard with default settings
9 Customer-specific configuration (specification in plain text)
a
(3) Parameters
10 Humidity, temperature, and CO
2
(standard)
20 Activation of other parameters
(absolute humidity (a), enthalphy (h), wet-bulb temperature (Tw), mixing ratio (x), dew point
temperature (Td), and steam pressure (pw))
(4) Extra code
000 Without
a
The customer-specific configuration only applies to the transmission interval (depends on the sensor connected
and RTD temperature probe Pt1000) and offset. Sensor for humidity and temperature (5 to 3600 s, per default
90 s), sensor for CO
2
(30 to 3600 s, per default 1200 s), RTD temperature probe Pt1000 (1 to 3600 s, per default
15 s), offset (-99.9 to +99.9, per default 0). Transmission interval and offset can also be set using the setup pro-
gram (see accessories).
(1) (2) (3) (4)
Order code --/
Order example 902928/10 - 8 - 10 / 000
1 device in the ordered version (sensors for humidity, temperature and CO
2
must be ordered separately, see acces-
sories)
1 lambda/4 antenna, impedance 50 ohm, 868.4 MHz, T
max.
125 °C
4× 1.5 V lithium batteries (size AA) in blister packaging
1 battery case for 4× 1.5 V batteries (size AA)
1 spring-cage terminal for DC 18 to 30 V external voltage supply, SELV voltage
2 accessories sets
1 operating manual

15
2 Identifying the device version
2.4 Accessories
Description Part no.
Setup program on CD-ROM, multilingual
a
00488887
Setup program incl. OnlineChart on CD-ROM, multilingual
a
00549067
OnlineChart activation 00549188
USB cable, type A USB connector on Mini-B USB connector, length 3 m
a
00506252
Lambda/4 antenna, impedance 50 ohm, 868.4 MHz, T
max.
125 °C 00503151
Antenna holder for wall mounting with antipole for lambda/4 antenna 00482648
Antenna cable with preconfigured screw-type connection, length 3m, T
max.
85 °C 00601189
Antenna cable with preconfigured screw-type connection, length 5m, T
max.
85 °C 00601190
Antenna cable with preconfigured screw-type connection, length 10 m, T
max.
125 °C 00669026
4× 1.5 V lithium batteries (size AA) in blister packaging 00617446
1 battery case for 4× 1.5 V batteries (battery size AA) 00606043
Spring-cage terminal for DC 18 to 30 V external voltage supply, SELV voltage 00598340
Plug-in power supply unit
Voltage supply: AC 100 to 240 V, 50 to 60 Hz
Output: DC 24 V, 0.5 A
Ambient temperature range: -20 to +50 °C
00619184
Sensor for humidity and temperature, measuring range 0 to 100 % RH and -40 to +80 °C
For connecting directly
Protection tube diameter 12 mm, length 91 mm
00614528
Sensor for CO
2
, measuring range 0 to 2000 ppm
For connecting directly
Protection tube diameter 18.5 mm, length 96 mm
00614530
Sensor for CO
2
, measuring range 0 to 5000 ppm
For connecting directly
Protection tube diameter 18.5 mm, length 96 mm
00614531
Sensor for CO
2
, measuring range 0 to 10,000 ppm
For connecting directly
Protection tube diameter 18.5 mm, length 96 mm
00614532
RTD temperature probe with Pt1000 temperature sensor and machine connector M12 × 1
For connecting directly
Protection tube diameter 12 mm, reduced to 4 mm, length 76 mm
00606033
Push-in RTD temperature probe with Pt1000 temperature sensor and machine connector
M12 × 1
902150/99-386-1013-2-6-100-56-2500/315
Protection tube diameter 6 mm, insertion length 100 mm, connecting cable length 2500 mm
00551310
Push-in RTD temperature probe with Pt1000 temperature sensor and machine connector
M12 × 1
902150/99-386-1013-2-6-200-56-2500/315
Protection tube diameter 6 mm, insertion length 200 mm, connecting cable length 2500 mm
00551311
Screw-in RTD temperature probe without transmitter with Pt1000 temperature sensor and
machine connector M12 × 1
902815/10-380-1013-2-6-100-000-24/000
Protection tube diameter 6 mm, insertion length 100 mm
00511233

2 Identifying the device version
16
Compression fitting G 1/2 (stainless steel) for protection tube diameter 6 mm 00305445
Compression fitting G 1/2 (stainless steel) for protection tube diameter 12 mm 00312448
Compression fitting M20 × 1.5 (stainless steel) for protection tube diameter 12 mm 00558447
Cable fitting M20 × 1.5 (nickel-plated brass) 00575665
Holder for wall mounting for RTD temperature probe Pt1000 with plug connection M12 × 1 00503329
Holder for wall mounting for RTD temperature probe Pt1000 with protection tube diameter
6mm
00503328
PUR
b
extension cable (shielded) with machine connector M12 × 1, length 2000 mm 00503577
PUR
b
extension cable (shielded) with M12 × 1 machine connector, length 5000 mm 00503578
PUR
b
extension cable (shielded) with M12 × 1 machine connector, length 10,000 mm 00503579
Note: for compression fittings and flanges refer to data sheet 909750
a
Configuration using a laptop/PC is only possible with the USB cable and one of the two setup programs.
b
Polyurethane
Description Part no.

17
3 Preparing the measuring probe
3 Preparing the measuring probe
CAUTION!
Explosion of the batteries or fire hazard.
Supply is either via batteries or external voltage supply.
Simultaneous supply via batteries and external voltage supply not possible.
3.1 Receiver software version
NOTE!
The measuring probe requires a receiver with a software version (firmware) of 05.01 or higher.
3.2 Supply with batteries
3.2.1 Inserting/changing the battery
CAUTION!
Make sure that pollutants, moisture, and steam cannot enter the measuring probe.
The measuring probe could be destroyed.
When inserting/changing the batteries make sure that the measuring probe is not exposed to pollut-
ants, moisture, and steam. In addition, it must be ensured that the seal is correctly fitted between the
battery compartment and measuring probe.
CAUTION!
The measuring probe does not function if the poles of the batteries are incorrectly connected.
The transmitter's batteries and electronics could become damaged.
Make sure that the poles of the batteries are correctly connected.
CAUTION!
Incorrect batteries put safety at risk.
The measuring probe may be destroyed if incorrect batteries are used.
It is preferable that you only use the lithium batteries recommended as accessories.
CAUTION!
Electrostatic discharge
The measuring probe is fitted with electronic components that may be destroyed by electrostatic dis-
charge.
When opening the measuring probe to change the battery or connect the external voltage supply, it
must be ensured that the personnel are sufficiently electrostatically discharged.

3 Preparing the measuring probe
18
CAUTION!
Incorrect battery setting (default setting: lithium)
If the setting of the battery type does not correspond to the type of battery used, this leads to significant
loss of battery operating life or to malfunction of the low battery detection.
Make sure the setting on the measuring probe or setup program is correct.
NOTE!
A mixed operation of alkaline and lithium batteries can also result in the abovementioned faults. Always
use batteries of the same type and charge.
CAUTION!
Possible data loss
If measuring and transmission intervals are selected that are quicker than the default settings (especially
in the case of 2 sensors), this will shorten the battery operating life, which leads to shorter alarm times
between battery low and battery empty (only hours in extreme cases). In the worst case, the alarm time
is approx. 2 % of the battery operating life calculated by the calculation program.
For the voltage supply of the measuring probe, 4 × FR6 or LR6 1.5V AA batteries are required. Lithium
batteries and alkaline batteries are admissible. The battery operating life depends on the sensors used
(type and number), the selected measuring and transmission intervals, the ambient temperature, and
the battery type. Recommended lithium battery: Energizer Ultimate Lithium AA-L91-FR6-1.5V (this type
of battery is part of the measuring probe equipment).
The measuring probe has been optimized for the recommended lithium battery. The recommended bat-
tery type achieves the best results, particularly when operating CO
2
sensors with high peak voltage
loads. On account of its high capacity, this lithium battery guarantees the maximum battery service life,
even at minus temperatures.
Recommended alkaline battery type: Duracell Ultra Power AA-MX1500-LR6-1.5 V (not available as an
accessory). If alkaline batteries are used, an adjustment of the measuring probe to this battery type is
recommended to optimize its lower capacity and to safeguard the battery low function. This type of bat-
tery is less suited to the operation of CO
2
sensors. The probe can be adjusted using the operating keys
or the setup program, see chapter 9.2.2 "General parameters", Page48.
CAUTION!
Battery assortment
Due to the large assortment of batteries, it cannot be guaranteed that the measuring probe will work
fault-free with each type of battery commercially available.
Use the recommended lithium or alkaline batteries.

19
3 Preparing the measuring probe
If the batteries were removed or if they must be replaced, proceed as follows:
1. Unscrew screw (A) on the battery compartment cover (B) counterclockwise.
2. Remove the battery compartment cover (B) and battery case (E) from the transmitter. Remove the
battery clip (C) from the battery case (E). Disconnect the internal voltage supply connection (F) and
battery case from the cover (B) for the battery compartment. Remove the used batteries from the
battery case (E).
For the initial startup, the battery case is in the accessories set and not fitted to the measuring probe.
3. To insert the 4 batteries, first move the batteries up/down against the contact spring (D) of the neg-
ative pole and then connect the positive pole (G). Make the sure the polarity (+ and -) is correct!
4. Fit the battery case (E) and voltage supply connection (F) in the cover (B) for the battery compart-
ment. Connect the battery clip (C) with the battery case (E). Insert the cover (B) on the transmitter.
Make sure that the internal voltage supply connection is not damaged by pinching or bending!
5. Tighten the screw (A) clockwise on the battery compartment cover (B) (max. 1 Nm).
6. Fit the antenna (H), see chapter 3.4.1 "Installing the antenna", Page 23.
For the initial startup, the antenna is in the accessories set and not fitted to the measuring probe.
3.2.2 Safety information concerning lithium batteries
 http://battery-e.jumo.info
(B)
(C)
(D)
(G)
(F)
+
+
-
-
(A)
(E)
(H)

3 Preparing the measuring probe
20
3.2.3 Battery operating life
The expected battery operating life can be determined with the calculation program in the setup program
(accessories) or with a 30-day test version (free) for lithium and alkaline batteries.
The battery operating life can only be calculated with fixed configured measurands in measured values
1 to 4. The operating life cannot be calculated with automatic sensor detection.
The low bat alarm time is approximately 2 % of the calculated battery life.
The measuring probe's battery operating life is calculated for room temperature and depends on the bat-
tery type, sensor type, transmission interval, measuring interval, and ambient temperature.
Operating the probe at the limit of the battery's admissible ambient temperature or in environments with
frequent temperature fluctuations can reduce the batteries' actual operating life by up to 50 %.
Leaving the backlight switched on permanently reduces the battery operating life to a few days.
3.2.4 Disposal of batteries
Please dispose of all batteries as specified by the legislator according to the German Closed Substance
Cycle and Waste Management Act or local regulations.
The contacts of batteries that are not fully discharged electrically need to be insulated. Disposal of bat-
teries together with domestic waste is expressly prohibited. Batteries can be taken to municipal waste
collection points or local retailers at no extra charge.