Manual

5. TECHNICAL SPECIFICATIONS

Measurement range

humidity 0...100 %RH

temperature -20...+60

°C or

-4...+140

°F

Accuracy (at +20

°C):

(including nonlinearity and hysteresis)

relative humidity

against factory references

+1 %RH

against field references

+2 %RH (0...90 %RH)

+3 %RH (90...100 %RH)

temperature

+0.3 °C (+0.5 °F)

NOTE:

When the HM34 is used in an electromagnetic field of 3 V/m,

with the frequency of 200 - 220 Mhz, the temperature

deviation is max. ±3 °C.

Temperature dependence:

+0.04 %RH/°C

+0.02 °C/°C

Resolution: 0.1 %RH

0.1 °C (0.1 °F)

Response time for

humidity (at +20 °C): 15 s

Display: 3

-digit LCD

HOLD function: pushbutton hold

for displayed value

Supply voltage: 9 V battery (IEC 6F22)

Battery operating time: 50 h (typ.)

Automatic power-off: after 3 minutes, unless

HOLD is activated