optris CT - Electrical and Interface Specifications

Technical Data 17-
2.2 Electrical Specifications
Power Supply
8–36 VDC
CT 4M: 8-30 VDC / 5 V USB / max. 1,2 W
Outputs/ analog
Channel 1
Channel 2 [LT/ G5/ P3/ P7 only]
(For CT 4M output 1 and 2 are freely selectable: Analog mA/mV, Alarm mA/mV, TCK)
selectable: 0/ 4–20 mA, 0–5/ 10 V, thermocouple (J or K) or alarm output (Signal source:
object temperature)
Head temperature [-20...180 °C/ -20...250 °C on LT02H and LT10H] as 0–5 V or 0–10 V
output or alarm output (Signal source switchable to object temperature or electronic box
temperature if used as alarm output)
Alarm output
Open collector output (NPN type) at Pin AL2 [24 V/ 50 mA]
Output impedances
mA
mV
Thermocouple
max. loop resistance 500 Ω
min. 100 kΩ load impedance
20 Ω
Digital interfaces
USB, RS232, RS485, Profibus DP, Ethernet, Modbus RTU (optional plug-in modules)
Relay outputs
2 x 60 VDC/ 42 VAC
RMS
, 0,4 A; optically isolated (optional plug-in module)
Functional inputs / I/O Pins
F1-F3; software programmable for the following functions:
• external emissivity adjustment
• ambient temperature compensation
• trigger (reset of hold functions)
Input impedance F2 and F3: 43 kΩ
CT 4M: I/O1-3 pins freely selectable via software
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