Sensor Connections - Sutron MONITOR Operation & Maintenance Manual

Sensor Connections

Two terminal blocks are provided for making connections to analog and digital sensors.
These blocks are located inside MONITOR, behind the front panel. The terminals are
numbered 1 to 22. The following table gives a short description of each of the terminals.
Detailed notes describing how to connect sensors to the terminal blocks are provided in
the setup section of this manual.
Terminal
Block
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Description Notes
AGND Analog ground
Analog 0-5V 'A' Voltage input for sensors with
Analog 0-5V 'B' Voltage input for sensors with
AGND Analog ground
2.5V output (turned on during
VREF
measurement)
DIFF 'C' (+) Differential voltage
DIFF 'C' (- )
DIFF 'D' (+) Differential voltage
DIFF 'D' (- )
24V (4-20ma) 24 Volt output for 2 wire
I-Input (4-20ma) Current input for 2 wire
Counter Input Frequency/period
Gnd Digital ground
Switched battery (turned on during
SW'D Batt
measurement)
Connect 2 wire 'VOLTAGE' wire here (eq. 24 Volts) – not
4-20ma Output (+)
used by MONITOR
4-20ma Output (-) Connect 2 wire '-' terminal here – not used by MONITOR
GND Digital ground
input for bridge type sensors
input for bridge type sensors
4-20ma sensor
4-20ma sensor
measurements
7
0-5V output
0-5V output
warmup and analog sensor
warmup and analog sensor