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Operating Manual EHT1
12.2007AG
Datalogger HAMSTER-E EHT1
4. Technical Data
Measuring parameters:
Room temperature
Measuring range:
-30 till +55°C
Resolution: 0.2°C
Accuracy: ±
0.5°C
Relative Humidity (Measurement values are temperature compensated)
Measuring range:
5 till +95%r.H.
Resolution: 0.2%r.H.
Accuracy:
± 3%r.H. from 5 till 95%r.H. at 23°C
Adjustment:
possible at manufacture site only
Reaction time (with installed sensor cover and 1m/s air speed)
Temperature:
τ
63<2min,
τ
90<8min (at a temperature step of 20°C)
rel. Humidity:
τ
63<15s,
τ
90<50s (at a humidity step of 30%r.H. and constant
temperature)
Logging interval:
10s till 3h (15 steps)
Display interval:
10s
Operating ranges / Limit values: - Temperature -30 till +55°C
- Humidity: 0 till 100%r.H.
Frequent interchange between e.g. cool rooms and
office, may affect the measurement accuracy of the
of humidity measurement!
Memory capacity:
Start/Stop mode:
16’252 measurement values for each channel
Loop mode:
15’296 measurement values for each channel
Power supply:
- Lithium battery 3.6V size AA
- Life span: approx. 2 years
Data transfer with PC:
- serial RS232 interface or USB port on PC
- optical interface (not IrDA) on the datalogger
Real time clock: - adjustable by the PC, integrated calendar with leap years
- Error: approx. 8min. / month
Operating position: any
Installation: lockable bracket
Limitations: The sensor should not be removed and the protection cap not be damaged.
The sensor should not get in touch with water or any other liquid.
Housing: - Dimensions: 93 x 64 x 27mm
3
- Protection class: IP30
-
Weight inclusive battery: approx. 120g
- Material: Polycarbonate
