CALP45: Pt100, Pt1000, Ptxxx input, 2- or 3-wire configuration
CALT45: Thermocouple input
CAL45: mV, V (dc), mA (dc), potentiometer input
Isolation: input/output
2-wire technique powered by the 4-20mA loop
LED for immediate monitoring of the loop and sensor
Green LED: 4–20 mA loop OK; Red LED: sensor fault
SIL 2 and SIL 3 compliance in accordance with IEC 61508
The CAL45 series signal conditioners convert input signals from Pt100, thermocouples, mA, mV
, or potentiometers into a 4–20 mA current output using isolated 2-wire technology. Their use is recommended
to eliminate ground loops or to protect the data acquisition system.