Trotec T3000 User manual

EN
TROTEC®GmbH & Co. KG • Grebbener Straße 7 • D-52525 Heinsberg
Tel.: [phone] • Fax: [phone]
www.trotec.com • E-mail: [email protected]
TRT-BA-T3000-TC-002-GB
Operating manual – Multifunction measuring meter ........... B - 1
T3000

B-1 Operating manual – Multifunction measuring meter T3000 GB
Preface
The operating manual only describes the multifunc-
tion measuring meter and its intended use.
Detailed descriptions of the sensors and optional
accessories as well as tips for proper and practical
use of the multifunction measuring meter are not
included in this operating manual.
For that information, see the separate Practice Hand-
book!
The current version of the operating manual and the
Practice Handbook can be found at: www.trotec.de
Symbols
Hazardous electric current!
Warns about hazards from electric cur-
rent which can lead to injuries or even
death.
Hazard from hot surfaces!
Warns of a burn hazard from hot surfac-
es.
Explosion hazard!
Warns of hazards from explosive sub-
stances.
Danger!
Warns of a hazard which can lead to per-
sonal injury.
Caution!
Warns of a hazard which can lead to
damage to property.
Definitions
Table of contents
Notes regarding the operating manual ............. B - 01
Information about the device ........................... B - 03
Safety.............................................................. B - 06
Transport and storage ..................................... B - 07
Operation ........................................................ B - 08
PC software..................................................... B - 34
Errors and faults .............................................. B - 36
Maintenance.................................................... B - 37
Using the trace gas sensor TS 800 SDI
(optional) ......................................................... B - 39
Available SDI sensors ...................................... B - 48
Available BNC electrodes................................. B - 49
Further accessories (optional).......................... B - 51
Disposal .......................................................... B - 52
Declaration of conformity................................. B - 52
Notes regarding the operating manual
Concept Meaning
SDI connection
Serial Digital Interface;
digital serial interface for connecting sen-
sors
BNC connection interface for connecting passive elec-
trodes after a resistance process
NTC
process for measuring temperature with
the electric resistance of a temperature
sensor
MultiMeasure Studio
Standard,
MultiMeasure Studio
Professional
PC software for complete analysis and
visualisation of measured values

GB Operating manual – Multifunction measuring meter T3000 B-2
Legal notice
This release replaces all previous versions. No part of
this publication may be reproduced without written
permission from TROTEC®. The same applies for
electronically processing, duplicating or spreading the
publication. Subject to technical changes. All rights
reserved. Trademarks are used without guarantee
that they may be used freely and primarily following
the spelling of the manufacturer. Product names are
registered.
Changes to construction in the interests of constant
improvements to the product, as well as changes to
the shape and colour are reserved.
The scope of delivery may vary from product images.
This document was created with all due care.
TROTEC®accepts no liability whatsoever for possible
mistakes or omissions.
The user is the only party responsible for determining
measured results to be valid, drawing conclusions and
deriving actions. TROTEC® accepts no claims of
warranty for correctness of detected measured values
or measured results. Further, TROTEC®accepts no
liability whatsoever for possible mistakes or damage
which have been caused by utilising the detected
measured results. © TROTEC®
Warranty
The warranty is for 12 months. Damages caused by
incorrect use by untrained people or startup by unau-
thorised people are excluded from the warranty.
The device complies with the fundamental health and
safety requirements of the applicable EU regulations
and was tested at the factory for perfect functionality
multiple times. However, if faults in the functionality
occur and cannot be remedied with the measures in
the chapter "Errors and faults", please get in touch
with your dealer or distributor. When making a war-
ranty claim, supply the device number (see the rear of
the device). The invoice acts as warranty certificate.
When manufacturer's instructions or legal regulations
have not been followed, or after unauthorised changes
to the device are made, the manufacturer is not
responsible for the resulting damages. Changes to the
device or unauthorised replacement of individual
parts can drastically impact the electrical safety of this
product and leads to the forfeit of the warranty. Liabil-
ity does not extend to damages to people or property
caused by the device being used other than as
described in the instructions in this operating manual.
Subject to changes to technical design and model
changes as part of constant development and product
improvement without prior notice.
No liability is accepted for damages resulting from im-
proper use. In such cases, entitlements to a warranty
are then also forfeited.

B-3 Operating manual – Multifunction measuring meter T3000 GB
Description of the device
The T3000 Multifunction measuring meter is used for
carrying out detailed analysis in the fields of material
and construction diagnostics. To do so, the device has
a 24 bit analogue/digital converter which delivers pre-
cise results and is permanently stable compared with
analogue measuring instruments.
The operating elements are found on the front and
sides of the robust housing. A scratch proof colour
display with touch function (1) is allows entering and
selecting values and functions and also displaying de-
tected results. You can also navigate the device soft-
ware for selecting measuring functions by using the
cross control (3) and the "OK" key (5).
Pressing the "Back" key (2) returns you to the previ-
ous screen of the device software. Pressing the "Main
menu" key (6) opens the main menu which is also
shown when you start the device.
Pressing the "Illumination on/off" key (4) either
switches the background illumination for the colour
display and the keys on or dims them.
The sensor connections (one SDI connection (7) and
one BNC connection (8)) are found above the colour
display (1). At the SDI connection (7), connect the ap-
propriate digital SDI sensor for the corresponding sit-
uation. The universal interface of the SDI sensors
allows the multifunction measuring meter to automat-
ically detect the sensor construction and/or indicates
when the wrong type of sensor is connected. Depend-
ing on the sensor construction, it is calibrated to the
prevailing surrounding conditions after connection.
Any sensor settings are saved directly to the corre-
sponding SDI sensor. The various measured values,
such as relative humidity, dew point or flow rate, are
automatically calculated by the SDI sensors and
transmitted to the multifunction measuring meter.
At the BNC connection (8), you connect passive wood
or building moisture sensors.
The measured results of the sensor which is connect-
ed to the SDI or BNC connection are shown in the de-
vice's colour display (1).
The "On/Off" key (10) and a USB connection (11) are
found on the sides of the device.
You can connect the device to a computer by using the
supplied USB connection cable. Then you can extract
and analyse your measured results with the optional
MultiMeasure Studio Standard or MultiMeasure Studio
Professional software. Contact TROTEC®customer
service if you want this alternative version.
Information about the device

GB Operating manual – Multifunction measuring meter T3000 B-4
Device depiction
No. Operating element
1 scratch proof colour display with touch function
2"Back"key
3 cross control with "Up", "Down", "Left", "Right" keys
4 "Illumination on/off" key
5 "OK" key
6 "Main menu" key
7 SDI connection (5-pin)
8 BNC connection
9 battery compartment with battery cover
10 "On/Off" key
11 USB connection
1
2
3
4
5
6
8
7
9
1011

B-5 Operating manual – Multifunction measuring meter T3000 GB
Technical data
*Data changes reserved.
Parameters Values
Multifunction measuring meter
Model T3000
Dimensions (L x W x H) approx. 170 x 62 x 34 mm
Operating range
Operating temperature 0 °C to +50 °C
Relative air humidity <90%or<20g/m
3(non-condensing)
Height above sea level (NN) max. 3000 m
Storage
Relative air humidity < 95 % (non condensing)
Ambient temperature -20 °C to +60 °C
Energy
Battery 4 x Alkaline LR6 AA batteries, 1.5 V or NiMH 1.2 V to 1,5 V (rechargeable batteries)
Optional power supply 5 V USB
Power input, active approx. 400 mW
Battery lifespan, passive approx. 1 year
Battery lifespan, active at least 24 h
Sensor supply 5.5 V ±10 % DC, max. 200 mA
Compatibility
Sensors*
SDI sensors (digital)
Air temperature and humidity
Material temperature
Material moisture
Air current
H2trace gas detection
BNC electrodes Material moisture (construction materials
and wood) after resistance process
Measured value storage for approx. 200 measuring projects consisting of up to 3 x 3,600 (=10,800) meas-
ured values, that is a total of 200 x 10,800 = 2,160,000 measured values
Amount of tiles in the grid max. 50 x 40 (max. amount of grid fields in one measurement)
Real time clock with calender programmed to 2099
Trace gas sensor TS 800 SDI (optional)
Response sensitivity 1 ppm H2
Measuring range 0 to 1000 ppm H2
Reaction time < 1 s
Pore size at stainless steel sinter filter > 50 μm
Power supply 11–14 V
Battery ("BatteryPack") 12 V / 2 Ah lead battery
Current consumption active approx. 400 mA
passive approx. 20 mA (sensor inactive)
Ambient temperature Operation 0 °C to +50 °C
Storage -20 °C to +50 °C
Relative air humidity < 95 % (non condensing)

GB Operating manual – Multifunction measuring meter T3000 B-6
Scope of delivery
Scope of delivery includes:
• 1 x T3000 Multifunction measuring meter
• 1 x USB connection cable
• 4 x Alkaline LR6 AA, 1.5 V batteries
• 1 x Display protection film
• 1 x Getting started guide
• 1 x Factory test certificate
• MultiMeasure Studio Standard PC software (to be
downloaded from www.trotec.de under the
"Downloads" menu)
Carefully read the operating manual before using
the device and keep it within reach!
• Do not use the device in atmospheres containing
oil, sulphur, chlorine or salt.
• Ensure that all connection cables are protected
from damages (e.g. from kinks or crushing).
• Protect the device from permanent direct sunlight.
• Observe the storage and operating conditions (see
chapter "Technical data").
Intended use
Only use the T3000 multifunction measuring meter for
preventive maintenance and risk analysis in the fields
of material, construction and climate diagnostics.
Here, read and observe the technical data.
To use the device for its intended use, only connect
and use accessories and spare parts which have been
approved by TROTEC®.
Intended use encapsulates e.g.:
• the analysis of:
– supply and exhaust air flows
– fluctuations in relative humidity
– formation of condensation
– poor machine cooling
– porous seals
– heat build up and temperature fluctuations
– excessively dry or damp materials
• leak location with trace gas
Improper use
Do not use the device in potentially explosive atmos-
pheres, or for measurements in liquids. TROTEC®ac-
cepts no liability for damages resulting from improper
use. In such a case, entitlements to a warranty are for-
feited. Any unauthorised modifications, alterations or
structural changes to the device are forbidden.
Personnel qualifications
People who use this device must:
• know and understand the dangers of working near
live parts.
• take measures to protect themselves from direct
contact with live parts.
• have read and understood the operating manual,
especially the "Safety" chapter.
For maintenance or repair work which requires
the housing to be opened, contact TROTEC®cus-
tomer service. Devices which have been opened
unlawfully are void of any warranty and warranty
claims.
Safety

B-7 Operating manual – Multifunction measuring meter T3000 GB
Residual risks
Hazardous electric current!
Work on the electrical components must
only be carried out by an authorised spe-
cialist company.
Hazardous electric current!
Never measure live parts.
Danger!
Do not leave the packaging lying around.
Children may use it as a dangerous toy.
Danger!
The device is not a toy and does not be-
long in the hands of children.
Danger!
Dangers can occur at the device when it
is used by untrained people in an unpro-
fessional or improper way. Observe the
personnel qualifications.
Caution!
To prevent damages to the device, do not
expose it to extreme temperatures,
extreme humidity or moisture.
Caution!
To prevent damages to the device or to a
connected sensor due to overheating, ob-
serve the permissible operating and
measuring ranges of the device and the
connected sensor. The corresponding
specifications are provided in the product
catalogue for measuring devices or at
www.trotec.de under the "Product Cata-
log – Measuring instruments – Multi-
function" menu.
Transport
To safely transport the multifunction measuring meter
and accessories, use the optional MultiMeasure carry
case (12) recommended by TROTEC®. Otherwise,
protect the device during use and transport with an
optional device bag (13). Contact TROTEC®customer
service if you want this alternative version.
Storage
When the device is not being used, observe the fol-
lowing storage conditions:
•dry,
• protected from dust and direct sunlight,
• with a plastic cover to protect it from invasive dust,
if necessary.
• The storage temperature is the same as the range
given in the chapter "Technical data".
• When storing the device for a long time, remove
the batteries.
• To store the device, use the optional carry case
(see chapter "Transport and storage") wherever
possible.
Transport and storage
12
13

GB Operating manual – Multifunction measuring meter T3000 B-8
Inserting the batteries
Switching on
1. Press and hold the "On/Off" key for approx.
3 seconds until the device beeps.
2. Release the "On/Off" key.
– The colour display is switched on. The device is
ready to go as soon as the main menu is
shown.
Switching off
1. Press and hold the "On/Off" key for approx.
3 seconds until the device beeps.
2. Release the "On/Off" key.
– The colour display is switched off.
Description of screen elements
When using the device, take special note of the fol-
lowing important operating elements and displays:
• The "Back" key (2) opens the previous menu.
• The "Main menu" key (6) opens the main menu.
• Name of the current screen (15)
• The text "SDI", "BNC" or "NTC" (16) indicates the
connected sensor type.
• Display of the current time (17)
• The "padlock" symbol (18) appears when you
press and hold the "On/Off" key for approx.
1 second during a measurement. The touch func-
tion of the colour display is locked. To release the
lock, press and hold the "On/Off" key for approx.
1 second.
• The "lightbulb" symbol (19) appears when you
have used the "Illumination on/off" key to switch
on background illumination (see chapter "Informa-
tion about the device").
• Battery loading status indicator (20); a plug symbol
is shown when power is supplied via a USB con-
nection.
All options which can be selected via touch function
can also be selected by using the cross control and
the "OK" key.
For safety reasons, some options can only be selected
and configured by using the cross control and the
"OK" key (e.g. date and time in the "Settings" screen).
Operation
20
15
62
191816 17

B-9 Operating manual – Multifunction measuring meter T3000 GB
Set language
1. Press the "Settings" key in the main menu.
2. Press the language selection key (21) in the "Set-
tings" screen.
3. Press the key with the desired language from the
following screen.
– The selected screen language is activated im-
mediately.
4. Press the "Main menu" key (6) to open the main
menu.
Main menu
You can open the following menus from the main
menu:
"Measuring mode" screen
The following measuring methods are available in the
"Measuring mode" screen:
21
6
Measuring mode: Carrying out measurements.
Archive: Open archived measured values.
Settings: Make any device settings.
Wood moisture: Measure moisture in wood (with BNC elec-
trode).
Building moist: Measure moisture in walls and floors (with SDI
or BNC electrodes).
Flowrate: Measure air/gas flows (with SDI sensor).
Humidity: Measure humidity (with SDI sensor).
Temperature: Measure temperature (with SDI sensor).
Hydrogen: Measure hydrogen content (trace gas; with SDI
sensor).

GB Operating manual – Multifunction measuring meter T3000 B-10
"Measuring mode – Wood moisture" screen
31302928
22
27
A.
23
24
26
B.
D.
C.
25
22 Select the desired type of wood (see image B.):
1. Touch the displayed type of wood (22 in image A.).
2. Press the "OK" key to activate the "Wood type" input box
(see image B.).
3. Press the "Up" or "Down" keys to select the initial letter of
the desired type of wood.
4. Press the "Right" key to select any other letters of the
desired type of wood.
5. Press the "OK" key.
6. Use the "Down" key to jump to the list of wood types and
select the desired type of wood. Press the "Left" or "Right"
keys to scan forward or backwards through the "Wood
type" list page by page.
7. Press the "OK" key to confirm the selected type of wood.
23 M%: Display the measured value as a mass percent-
age (relative mass proportion of the humidity to
the total mass).
24 Select the temperature sensor (INT) which is built into the
T3000 or select the manually specified temperature value (FIX;
see image C.). The measured or manually specified tempera-
ture value is shown to the right of the "INT" or "FIX" key.
25 Resets the measured values shown by 27 to zero.
26 Specifies how measured values by 27 are shown (see
image D.):
Minimum: Always shows the smallest detected measured
value from a measuring period.
Maximum: Always shows the largest detected measured
value from a measuring period.
Average: Shows the average value of all detected
measured values from a measuring period.
Hold: Pauses the current detected measured value and
shows it continually (when this option is
selected).
Off: Switches off the measured values by 27.
27 Shows the measured values according to the specifica-
tions under 26:
Minute: Duration of the measured interval
M%: Shows the measured value (e.g. as average
value) as a mass percentage (relative mass pro-
portion of the humidity to the total mass).
°C: Shows the measured (INT) or manually specified
temperature values (FIX).
28 Carries out a grid measurement (see image E., page B - 11).
29 Specifies the measuring range in height x width (edge lengths)
and their activation/deactivation as well as the specified tem-
perature value (FIX) (see image F. ,page B - 12).
30 Carries out an automatic measurement for the duration of an
already specified recording interval. The recording interval can
be specified in the following screen (see image G. and
image H.,page B - 13).
31 Saves the measured values in the archive.

B-11 Operating manual – Multifunction measuring meter T3000 GB
"Measuring mode – Wood moisture – Grid measurement" screen
32
E.
33
373635
34
32 digits: Dimensionless display of the measured value;
the lower the measured electric resistance, the
higher the moisture in the wood and therefore,
the higher the digit value.
33 Use the grid measurement function to carry out a grid
measurement (e.g. of a wall). The grid measurement can be
carried out either with or without height and length details, but
the grid is always used.
Proceed as follows:
1. Press the "OK" key to select the grid.
2. Use the cross control to select the first grid measuring spot
(e.g. "2-1" in image E.).
3. Press the "OK" key to confirm the selected grid measuring
spot. => The dimensionless measured value is recorded.
4. Use the keys of the cross control to select the next grid
measuring spot and repeat the process.
34 Enters the current measured value to the marked grid measur-
ing spot (e.g. "2-1" in image E.). Then, the grid measuring
spot below it is selected (e.g. "2-2" in image E.).
Use this function if no measurement can be made at this posi-
tion because of a power cabinet or a window etc.
35 Skips the grid measuring spot below the currently selected
grid measuring spot (e.g. "2-1" in image E.) and selects the
grid measuring spot after it (e.g. "2-3" in image E.).
36 Skips to the start of the next column.
37 Saves the measured values in the archive.

GB Operating manual – Multifunction measuring meter T3000 B-12
"Measuring mode – Wood moisture – Measuring range/limit value alarm signal" screen
42
38
F.
39
40
41
38 Specifies the total height of the grid area to be measured. The
value is used during grid measurement (see image E.).
39 Specifies the total width of the grid area to be measured. The
value is used during grid measurement (see image E.).
40 Activates ("On") or deactivates ("Off") the use of specified
edge lengths (38, 39) during grid measurement. For deactiva-
tion, you must specify the corresponding edge lengths of the
grid area in the PC software after grid measurement.
41 Specifies the temperature value (FIX) for the temperature com-
pensation which is necessary for accurate wood moisture cal-
culation. (image C., page B - 10).
42 Saves the settings.
Note!
The settings saved here are also used for all following meas-
urements, unless they are deactivated (in the corresponding
menu item)!

B-13 Operating manual – Multifunction measuring meter T3000 GB
"Measuring mode – Wood moisture – Automatic measurement" screen
G.
43
44
484746
45
H.
43 M%: Display the measured value as a mass percent-
age (relative mass proportion of the humidity to
the total mass).
44 Shows the measured (INT) or the specified (FIX) temperature
value for temperature compensation.
45 Opens a screen for selecting the recording duration for meas-
uring over a long period (see image H.).
46 Starts recording.
The key turns red once recording has started.
47 Stops the current recording. The detected values are auto-
matically saved to the current measuring project.
48 Pauses the current recording.
Key 46 flashes.
Press this key again to continue recording.

GB Operating manual – Multifunction measuring meter T3000 B-14
"Measuring mode – Building moist" screen
Note!
The following applies for the screen descriptions be-
low:
• When using BNC electrodes, the measured value is
shown as the dimensionless unit "digits".
• When using dielectric measuring SDI sensors, the
measured value is shown as "digits", "M%" or
"CM%".

B-15 Operating manual – Multifunction measuring meter T3000 GB
57565554
49
53
A.
50
52
B. C.
51
49 Selection for connected SDI sensor (see image B.):
Without mate-
rial:
A non-destructive, indicative (digits) measurement
is carried out.
Anhydrite floor: A building moisture measurement is carried out for
anhydrite floor (with SDI sensor TS 660 SDI). The
measurement results (indicative) in M% and CM%
are detected with an equation which is suitable for
this material.
Cement floor: A building moisture measurement is carried out for
cement floor (with SDI sensor TS 660 SDI). The
measurement results (indicative) in M% and CM%
are detected with an equation which is suitable for
this material.
Selection for connected BNC electrode (see image A.):
Without mate-
rial:
A resistance measurement is carried out.
50 For selection "Without material" (with BNC electrode):
digits: Dimensionless display of the measured value; the
lower the measured electric resistance, the higher
the moisture in the material and therefore, the
higher the digit value.
For selection "Anhydrite floor" or "Cement floor" (with SDI
sensor TS 660 SDI):
M%: Display the measured value as a mass percentage
(relative mass of the humidity to the total mass).
CM%: Shows the measured value according to the calcium
carbide method.
51 Resets the measured values shown by 53 to zero.
52 Specifies how measured values by 53 are shown (see
image C.):
Minimum: Always shows the smallest detected measured
value from a measuring period.
Maximum: Always shows the largest detected measured value
from a measuring period.
Average: Shows the average value of all detected measured
values from a measuring period.
Hold: Pauses the current detected measured value and
shows it continually (when this option is selected).
Off: Switches 53 display off.
53 Shows the measured values according to the specifications
under 52:
Minute: Duration of the measured interval
M%: Shows the measured value (e.g. as average value)
as a mass percentage (relative mass proportion of
the humidity to the total mass).
CM%: Shows the measured value (e.g. as average value)
according to the calcium carbide method.
54 Carries out a grid measurement (see image D., page B - 16).
55 Specifies the measuring range in height x width as well as the limit
value for the alarm signal (see image E. and image F. ,page B - 17).
56 Carries out an automatic measurement for the duration of an
already specified recording interval. The recording interval can be
specified in the following screen (see image G. and image H.,
page B - 18).
57 Saves the measured values in the archive.

GB Operating manual – Multifunction measuring meter T3000 B-16
"Measuring mode – Building moisture – Grid measurement" screen
57
D.
58
626160
59
57 digits: Dimensionless display of the measured value;
the lower the measured electric resistance, the
higher the moisture in the material and there-
fore, the higher the digit value.
58 Use the grid measurement function to carry out a grid meas-
urement (e.g. of a wall). The grid measurement can be carried
out either with or without height and length details, but the
grid is always used.
Proceed as follows:
1. Press the "OK" key to select the grid.
2. Use the cross control to select the first grid measuring spot
(e.g. "2-1" in image D.).
3. Press the "OK" key to confirm the selected grid measuring
spot. => The dimensionless measured value is recorded.
4. Use the keys of the cross control to select the next grid
measuring spot and repeat the process.
59 Enters the current measured value to the marked grid measur-
ing spot (e.g. "2-1" in image D.). Then, the grid measuring
spot below it is selected (e.g. "2-2" in image D.).
Use this function if no measurement can be made at this posi-
tion because of a power cabinet or a window etc.
60 Skips the grid measuring spot below the currently selected
grid measuring spot (e.g. "2-1" in image D.) and selects the
grid measuring spot after it (e.g. "2-3" in image D.).
61 Skips to the start of the next column.
62 Saves the measured values in the archive.

B-17 Operating manual – Multifunction measuring meter T3000 GB
"Measuring mode – Building moisture – Measuring range/limit value alarm signal" screen
67
63
E.
64
65
66
F.
63 Specifies the total height of the grid area to be measured. The
value is used during grid measurement (see image D.).
64 Specifies the total width of the grid area to be measured. The
value is used during grid measurement (see image D.).
65 Activates ("On") or deactivates ("Off") the use of specified
edge lengths (63, 64) during grid measurement. For deactiva-
tion, you must specify the corresponding edge lengths of the
grid area in the PC software after grid measurement.
66 Specifies the limit value for the alarm signal of the dimension-
less measuring unit "digits".
Once the limit value is reached, an alarm signal is emitted.
Note!
This option is only enabled when an SDI sensor with alarm
function is connected (see image F.). This option is greyed out
when connecting a BNC electrode (see image E.).
67 Saves the settings.
Note!
The settings saved here are also used for all following
measurements, unless they are deactivated (in the
corresponding menu item)!

GB Operating manual – Multifunction measuring meter T3000 B-18
"Measuring mode – Building moisture – Automatic measurement" screen
G.
68
69
737271
70
H.
68 For selection "Without material" (see image A.,
page B - 14):
digits: Dimensionless display of the measured value;
the lower the measured electric resistance, the
higher the moisture in the material and there-
fore, the higher the digit value.
For selection "Anhydrite floor" or "Cement floor" (see
image A., page B - 14):
M%: Display the measured value as a mass percent-
age (relative mass proportion of the humidity to
the total mass).
CM%: Shows the measured value according to the cal-
cium carbide method.
69 Shows the remaining time until the automatic measurement
finishes.
70 Opens a screen for selecting the recording duration for meas-
uring over a long period (see image H.).
71 Starts recording.
The key turns red once recording has started.
72 Stops the current recording. The detected values are automat-
ically saved to the current measuring project.
73 Pauses the current recording.
Key 71 flashes.
Press this key again to continue recording.

B-19 Operating manual – Multifunction measuring meter T3000 GB
"Measuring mode – Flowrate" screen
828180
74
79
A.
75
76
B.
77
78
74 Shows the measured flow rate as a numerical value in the
selected unit (e.g. m/s).
This unit is selected in the "Settings" screen, page B - 30.
75 Shows the measured flow rate as visual bars.
76 Shows the measured temperature value.
77 Resets the measured values shown by 79 to zero.
78 Specifies how measured values by 79 are shown (see
image B.):
Minimum: Always shows the smallest detected measured
value from a measuring period.
Maximum: Always shows the largest detected measured
value from a measuring period.
Average: Shows the average value of all measured values
which have been detected so far from a measur-
ing period.
Hold: Pauses the current detected measured value and
shows it continually (when this option is
selected).
Off: Switches 79 display off.
79 Shows the measured values according to the specifica-
tions under 78:
Minutes: Duration of the measured interval
m/s: Shows the measured flow rate as a numerical
value in the selected unit (e.g. m/s).
This unit is selected in the "Settings" screen,
page B - 30.
°C: Shows the measured temperature value.
80 Carries out an automatic measurement for the duration of an
already specified recording interval. The recording interval can
be specified in the following screen (see image C. and
image D.,page B - 20).
81 Specifies the measuring range in height x width as well as the
form of the object to be measured (e.g. pipe or shaft) for the
volumetric flow measurement (see image E.,page B - 21).
82 Saves the measured values in the archive.