TESTO 175 Mode D'emploi page 37

3 Specifications
testo 175 H1 (0572 1754)
Feature
Measurement
parameter
Sensor type
Number of
measuring
channels
Measuring
ranges
System
accuracy 9
Long-term drift
of the sensor
under normal
conditions
Usage
conditions
Resolution
Operating
temperature
Storage
temperature
Long-term condensation in the system may result in damage to
8
the measuring instrument.
9 The use of sintered caps may affect the response time of the
sensor.
Values
Temperature (°C/°F), moisture (%rF
/%RH/ °Ctd/ g/m
NTC temperature sensor, capacitive
humidity sensor
2x internal (stubs)
-20 to +55 °C
-40 to +50 °Ctd
0 to 100 %rF (not for condensing
atmosphere)
8
±2%rF (2 to 98%rF) at 25 °C
±0.03 %rF/K ± 1 digit
±0.4 °C (-20 to +55 °C) ± 1 digit
<1 %RH/year (ambient temperature
+25 °C)
All specifications call for an
atmosphere with a percentage of
harmful gases that does not exceed
the maximum allowable concentration
(MAC). A higher percentage of harmful
gases (e.g. ammonia or hydrogen
peroxide) may result in damage to the
sensor.
0.1 %rF, 0.1 °C
-20 to +55 °C
-20 to +55 °C
)
3
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