Accsense
VersaLog Data Loggers User’s Manual
Page 15
Besides the on-board thermistor channel, the VL-TC logger has seven external voltage DC
channels used to measure thermocouple probes or small voltage signals. The following figure
illustrates the correct input connections:
CH1
A2/E
A1
COM
CH7
CH6
COM
CH5
CH4
COM
CH3
CH2
COM
+
-
+
-
Thermocouple Probe
Thermocouple Input Connections
Note: All inputs must share the same common ground.
Channel and Sensor Specifications:
Channels
One on-board thermistor reference temperature ( -40°F ~
158°F).
Seven external thermocouple inputs.
Type: E, N, J, K, T
Software programmable input range selections for each
channel
Accuracy
Reference Temperature : 0.36°F Thermocouple Inputs: +/-
0.2% + T/C Accuracy @ 25°C
Over-voltage protection
+/- 40 VDC
Measure Temperature:
Based on the thermocouple type you want to use and the desired temperature range you want
to measure you can select one of four channel’s available ranges and the correct factory
thermocouple equation: