Accsense
VersaLog Data Loggers User’s Manual
Page 12
CH1
A2/E
A1
COM
CH7
CH6
COM
CH5
CH4
COM
CH3
CH2
COM
Transducer #2
Current DC
GND
Transducer #1
Current DC
GND
Current External Input Connections
Note: All inputs must share the same common ground.
Channel and Sensor Specifications:
Connections
Pluggable terminal block for seven external channels, excitation
controls and alarm outputs
Channels
One on-board thermistor temperature (-40°C ~ 70°C, -40°F ~
158°F).
Seven external Current DC inputs: 0 ~ 20 mA
Resolution
0.0018%
Accuracy
Thermistor channel: +/- 0.2°C(0°C ~ 70°C, 32°F ~ 158°F)
Current channels: +/- 0.1% FSR @ 25°C
Load Resistor
12 Ohms
Over-current protection
+/- 100 mA
VL-DCVC-HR – Voltage & Current Inputs, Range Programmable
Besides the on-board thermistor channel, the VL-DCVC-HR logger has seven external voltage
and current channels. The first four external channels are used to measure single-ended voltage
maximum of 20 VDC and the remaining three external channels are used to measure single-
ended current DC signals maximum of 20 mA. The following figure illustrates the correct input
connections:
