TESTO 174 User manual
1 Contents
19
1Contents
1Contents .................................................................................................19
2Safety and the environment..................................................................20
2.1 About this document......................................................................20
2.2 Ensure safety.................................................................................21
2.3 Protecting the environment............................................................21
3Specifications ........................................................................................21
3.1 Use ................................................................................................21
3.2 Technical data ...............................................................................22
4First steps ..............................................................................................24
4.1 Releasing/securing data logger .....................................................24
4.2 Inserting batteries ..........................................................................25
4.3 Connecting data logger to PC........................................................26
5Display and control elements...............................................................27
5.1 Display...........................................................................................27
5.2 Key functions .................................................................................28
6Using the product..................................................................................29
6.1 Programming data logger ..............................................................29
6.2 Mounting wall bracket....................................................................29
6.3 Reading out data ...........................................................................30
7Maintaining the product........................................................................30
7.1 Changing the batteries ..................................................................30
7.2 Cleaning the instrument.................................................................31
8Tips and assistance...............................................................................32
8.1 Questions and answers .................................................................32
8.2 Accessories and spare parts .........................................................32
2 Safety and the environment
20
2Safety and the environment
2.1 About this document
Use
> Please read this documentation through carefully and
familiarize yourself with the product before putting it to use. Pay
particular attention to the safety instructions and warning advice
in order to prevent injuries and damage to the products.
> Keep this document to hand so that you can refer to it when
necessary.
> Hand this documentation on to any subsequent users of the
product.
Symbols and writing standards
Representation Explanation
Warning advice, risk level according to the
signal word:
Warning! Serious physical injury may occur.
Caution! Slight physical injury or damage to
the equipment may occur.
> Implement the specified precautionary
measures.
Note: Basic or further information.
1. ...
2. ...
Action: more steps, the sequence must be
followed.
> ... Action: a step or an optional step.
- ... Result of an action.
Menu Elements of the instrument, the instrument
display or the program interface.
[OK] Control keys of the instrument or buttons of
the program interface.
... | ... Functions/paths within a menu.
“...” Example entries
3 Specifications
21
2.2 Ensure safety
> Only operate the product properly, for its intended purpose and
within the parameters specified in the technical data. Do not
use any force.
> Never use the instrument to measure on or near live parts.
> Keep the read-out contacts on the rear of the data logger in
particular away from live parts!
> Carry out only the maintenance and repair work on this
instrument that is described in the documentation. Follow the
prescribed steps exactly. Use only original spare parts from
Testo.
2.3 Protecting the environment
> Dispose of faulty rechargeable batteries/spent batteries in
accordance with the valid legal specifications.
> At the end of its useful life, send the product to the separate
collection for electric and electronic devices (observe local
regulations) or return the product to Testo for disposal.
3Specifications
3.1 Use
The testo 174 data loggers are used for storing and reading out
individual readings and series of measurements.
Readings are measured and stored with the testo 174 and
transmitted to the PC via the interface, where they can be read out
and evaluated using the testo ComSoft software. The data logger
can also be programmed individually via the software.
Examples of applications
testo 174T is ideally suited for temperature measurement in in
refrigerators, freezers, cold rooms and cold shelves.
testo 174H monitors the climatic conditions, e.g. in warehouses,
offices and in the manufacturing sector.
3 Specifications
22
3.2 Technical data
testo 174T
Characteristic Values
Probe type Internal NTC temperature sensor
Measuring range -30 to +70 °C
Accuracy ± 0.5 °C (-30 to +70 °C)
Resolution 0.1 °C
Operating
temperature
-30 to +70 °C
Storage
temperature
-40 to +70 °C
Battery type 2 x 3 V button cell (2 x CR 2032 lithium)
Life 500 days (15 min measuring cycle, +25 °C)
Protection class IP65
Meas. cycle 1 min - 24 h (can be selected)
Memory 16,000 readings
Software can be used with Windows XP, Vista, Win7
Standards 2004/108/EC, complies with the directives in
accordance with the standard EN 128302
Warranty
24 months, warranty conditions: see website
www.testo.com/warranty
2Please note that with this instrument in accordance with EN 12830 a regular
inspection and calibration as per EN 13486 must be performed
(recommendation: annually). Contact us for more information.
3 Specifications
23
testo 174H
Characteristic Values
Probe type NTC temperature sensor and internal
capacitive humidity sensor
Measuring range 0 to 100 % RH (non-dewing atmosphere),
-20 to +70 °C
Humidity accuracy ± 3 % RH (2 % RH to 98 % RH)
± 1 digit +0.03 % RH/K
Temperature
accuracy
± 0.5 °C (-20 to +70 °C)
Resolution 0.1 % RH, 0.1 °C
Operating
temperature
-20 to +70 °C
Storage
temperature
-40 to +70 °C
Battery type 2 x 3 V button cell (2 x CR 2032 lithium)
Life 1 year (15 min measuring cycle, +25 °C)
Protection class IP20
Meas. cycle 1 min - 24 h (can be selected)
Memory 2 x 8000 readings
Software can be used with Windows XP, Vista, Win7
Warranty 24 months, warranty conditions: see website
www.testo.com/warranty
EC Directive 2004/108/EC
4 First steps
24
4First steps
4.1 Releasing/securing data logger
The data logger is delivered secured.
Releasing data logger
1. Push both locks on the bottom of the wall bracket outwards.
2. Slide data logger out of the wall bracket.
Securing data logger
1. Slide data logger into the wall bracket.
2. Push both locks on the bottom of the wall bracket inwards.
4 First steps
25
4.2 Inserting batteries
1. Place the data logger on its front.
2 Open battery compartment cover on the rear of the data logger
by turning to the left and remove it.
Use a coin for this.
3. Insert supplied batteries (3 V button cell, CR 2032 lithium) so
that the + pole is always visible.
4. Place battery compartment cover on the data logger and close
by turning to the right.
Use a coin for this.
- The current temperature is shown on the display screen.
4 First steps
26
4.3 Connecting data logger to PC
1. Install testo ComSoft software.
The software is available in the Internet as a free download
requiring registration.
The instructions for the installation and operation of the
software can be found in the testo ComSoft instruction
manual that is downloaded together with the software.
The software can be ordered on CD (article no. 0572 0580)
if the download from the Internet is not desired.
2. Connect the connecting cable of the interface to a free USB
interface on the PC.
3. Slide the data logger into the bracket of the interface.
4. Configure data logger, see separate testo ComSoft instruction
manual.
5 Display and control elements
27
5Display and control elements
5.1 Display
Depending on the operating status, various information may
be shown in the display. A detailed depiction of the
information that can be called up can be found in the quick
instruction manual that is included with every data logger.
1 Measurement program running
2 Measurement program over
3 Wait for start of measurement program
4 Highest saved reading
5 Lowest saved reading
6 Reading
7 Units
8 Start criterion Date/time programmed
9 Battery capacity
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