Comet U0110, User Manual

Page: 48 / 74

48
IE-LGR-Uxxxx-16
U0122 __________________________________________
Measured values:
Internal temperature
1x External temperature sensed by an external
COMET Pt1000/E series probe
Range:
Internal temperature: (-
30 to +70) °C
External temperature input:
(-
90 to +260) °C, Pt1000/3850 ppm sensor
Meas. current: approx. 0.5 mA with approx. 60 ms
pulses
Accuracy:
Internal temperature: ± 0.4 °C
External temperature input (without probe):
±0.2 °C in a range of -90 °C to +100 °C
±0.2 % of the measurement value in a range of
+100
°C to +260 °C
The accuracy of the device with a temperature probe
connected to it is determined by the above input
accuracy and the accuracy of the probe
employed.
Connection (external probe):
Two-wire connection with the possibility of
compensation of the error caused by the cable
resistance. The probe is provided with a 3-pin M8 ELKA
3008V connector. Its connection is shown in
Annex 2 .
The recommended length of the Pt1000/E probe cable
is maximum 15 m, a length of 30 m must not be
exceeded. Shielded cables are recommended.
Response time:
Internal temperature: t
63
< 6 min, t
90
< 15 min (tempera-
ture step 20
°C, air circulation approx. 1 m/s)
External temperature input: Is determined by
the response time of the used probe (it valid if
Measuring interval is set to 1 s).
Display resolution:
Internal temperature: 0.1 °C
External temperature input: 0.1 °C, 16-bit converter
range
Recommended calibration interval:
2 years