COTRUST CTH200 Series - Page 92

Technical Specifications
82
L+ voltage range
20.4~28.8VDC
Power dissipation
1.8W
Input
Input type
Pt100: α=3850PPm/3920PPM/3850.55PPM/3916PPM/3902PM
NTC: R25=10k/B=3950 or R25=10k/B=3435
Temperature scale
range
Pt100: -50℃~800℃
NTC(R25=10k/B=3950): -40℃~120℃
NTC(R25=10k/B=3435): -40℃~150℃
<Note> Error when exceeding this range, refer Table 4-30 for
Diagnostic details.
Counts
8PT100/8NTC
Plug-in I/O terminal
Yes
Power isolation
Yes
Field-Logic
500VAC
Field-DC 24 V
500VAC
DC 24 V-Logic
500VAC
Common-mode
rejection
120dB@120VAC
Sampling features
Temperature
resolution
0.1℃/0.1℉
Measurement principle
Σ-Δ
Module update time:
All channels
825ms
Max Wire length
100m
Max Wire loop
resistance
20Ω
Suppression of
interference
85dB@50/400 Hz
Input impedance
>1KΩ
Measurement
accuracy
±0.3℃
Open-wire detection
Pt100 detects 3 wires (NTC detects 2 wires), up to 3 minutes
Wiring diagram
SM231 temperature input module Pt100 (CTH2 231-7NF32)