Comet U0110, User Manual

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IE-LGR-Uxxxx-16
55
U3631 _________________________________________
Measured values:
Internal temperature, relative humidity.
1x External temperature measured by an external
COMET Pt1000/E probe.
Dew-point temperature calculated from the internal
temperature and relative humidity.
Difference of external temperature and dew point
temperature.
Ranges:
Internal temperature: (-30 to +70
) °C
Relative humidity: (0 to 100) %RH without permanent
condensation
(*2)
.
Dew-point temperature: (-60 to +70)
°C
External temperature input:
(-
90 to +260) °C, Pt1000/3850 ppm sensor
Measuring current: approx. 0.5 mA in pulse
length approx. 60 ms
Accuracy:
Internal t
emperature: ± 0.4 °C
Relative humidity:
-
sensor accuracy ±1.8 %RH at 23 ºC in the
range of (0 to 90) %RH
-
hysteresis < ±1 %RH
- non-
linearity < ±1 %RH
- temperature error: see diagrams in Annex 6
Dew-
point temperature: ±1.5 °C at an ambient
temperature of T< 25
°C and RH >30 %.
For details see diagrams in Annex 3 .
External temperature input (without probe):
± 0.2 °C in the range -90 °C to +100 °C
± 0.2 % of the measured value in the range
+100 ° C to +260 ° C
The accuracy of the device with attached
temperature probe is determined by the above
input accuracy and the accuracy of the probe.
Connection method (external probe):
Two-wire connection with the possibility of
compensation for the cable wire resistance. The probe
is terminated by a 3-pin M8 ELKA 3008V connector.
The method of interconnection is given in
Annex 2 .
The recommended length of probes Pt1000/E is up to
15 m, not longer than 30 m. It is recommended to use
shielded cables.