User Manual

3 Specifications
23
Characteristic Values
Software can be used with Windows XP, Vista, Win7
Standards
2004/108/EC, complies with the directives in
accordance with the standard EN 12830
3
Warranty
24 months, warranty conditions: see website
www.testo.com/warranty
Pos: 17 /TD/Leistungsb eschreibung/Tec hnische Daten/testo 174- H @ 5\mod_1263219406 290_79.doc @ 54630 @ 5 @ 1
testo 174H
Characteristic Values
Probe type
NTC temperature sensor and internal
capacitive humidity sensor
Measuring range
0 to 100 % RH (not for condensing
atmosphere
4
), -20 to +70 °C
Humidity accuracy ± 3 % RH (2 % RH to 98 % RH) at +25 °C
± 0.03 % RH/K ± 1 digit
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
3
Please 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.
4
For continous applications in high humidity (> 80% RH at ≤ 30°C for > 12 h, >
60% RH at > 30°C for > 12 h), please contact us via www.testo.com/service-
contact.