5.3.1 Input Type
This dropdown is used to select the type of sensor that is connected to the channel.
The following are the different options available.
mV
2W RTD Ω 3W RTD Ω 4W RTD Ω
2W RTD Cu50 3W RTD Cu50 4W RTD Cu50
2W RTD Cu53 3W RTD Cu53 4W RTD Cu53
2W RTD Ni100 3W RTD Ni100 4W RTD Ni100
2W RTD PT100 3W RTD PT100 4W RTD PT100
TC, B, Temp, CJC TC, E, Temp, CJC TC, K, Temp, CJC TC, R, Temp, CJC TC, T, Temp, CJC
TC, B, Temp, no CJC TC, E, Temp, no CJC TC, K, Temp, no CJC TC, R, Temp, no CJC TC, T, Temp, no CJC
TC, B, mV, CJC TC, E, mV, CJC TC, K, mV, CJC TC, R, mV, CJC TC, T, mV, CJC
TC, C, Temp, CJC TC, J, Temp, CJC TC, N, Temp, CJC TC, S, Temp, CJC TC, XK, Temp, CJC
TC, C, Temp, no CJC TC, J, Temp, no CJC TC, N, Temp, no CJC TC, S, Temp, no CJC TC, XK, Temp, no CJC
TC, C, mV, CJC TC, J, mV, CJC TC, N, mV, CJC TC, S, mV, CJC TC, XK, mV, CJC
Definitions:
2W – 2 wire (RTD)
3W – 3 wire (RTD)
4W – 4 wire (RTD)
TC – Thermocouple.
CJC – Cold Junction Compensated
5.3.2 Safety Drive
Safety Drive specifies what value should be returned (to the Modbus Host)
if the sensor reading is out of range. The options are None, Upscale, and
Downscale. See the chapter on HOLDING REGISTERS in the INM838C-MBF
manual for more information.
5.3.3 High Alarm
The number in this field will determine when a High Alarm is triggered (current
reading is above the High Alarm setting). This can be used for the MTL838C
alarm relays and is available to the Modbus Host.
5.3.4 Low Alarm
A current reading below the value in this box triggers a Low Alarm. Like
the High Alarm, this data is available for the MTL838C alarm relays and the
Modbus Host.
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