PAGE 15
SENSO
RS AN
D INS
TRUME
N
TATI
O
N F
O
R MAC
HINE
CON
DITI
ON M
ON
IT
ORIN
G
Pin Descriptions
Input Signal - Pins 1 to 6
Pin 1
+ICP
®
Sensor Excitation/Signal
Pin 2
-ICP
®
Sensor Excitation
Pin 3
ICP
®
Sensor Shield (if applicable)
Pin 4
+ RV Output (Analog Sensor Signal)
Pin 5
- RV Output (Analog Sensor Signal)
Pin 6
No Connection
Relay Output
- Pins 8 to 12
Pin 8
SP1 NO. (Normally Open 5 Amp Form A.)
Pin 9
SP1 NO.
Pin 10
SP2 NO. (Normally Open 5 Amp Form A.)
Pin 11
SP2 NO.
Pin 12
No Connection
AC/DC Power Unit
- Pins 14 and 15
Pin 14
AC/DC Neutral. Neutral power supply line.
Pin 15
AC/DC Line. Live power supply line.
OPTIONAL TOP BOARD PINS
Analog Output
- Pins 16 and 17
Pins 16 and 17 are the analog output pins on the optional output module.
Pin 16
Positive (+) analog output.
Pin 17
Negative (-) analog output.
Rear Panel Function
–
Pins 18 to 21
Pin 18
DIM. By connecting the display dim (DIM) pin to the COMMON pin, the display brightness setting is
halved.
Pin 19
COMMON. To activate the LOCK or DIM functions from the rear of the meter, the respective pins have to
be connected to the COMMON pin. This pin is connected to the internal power supply ground.
Pin 20
HOLD. By connecting the HOLD pin to the COMMON pin, the display reading is frozen, however, A/D
conversions continue. When the HOLD pin is disconnected from the COMMON pin, the correct reading is
displayed.
Pin 21
LOCK. By connecting the LOCK pin to the COMMON pin, the meter
’
s parameters can be viewed but not
changed.
Top Board Secondary Relay Output
–
Pins 22 to 29
Quad 5A Form A Relays or Dual 10Amp Form C Relays.
Pin 22
SP1 (Quad 5A SPST Relay Option)
Pin 23
SP1 (Quad 5A SPST Relay Option), SP3 COMM (10A SPDT Additional Relay Option)
Pin 24
SP2 (Quad 5A SPST Relay Option), SP3 NC (10A SPDT Additional Relay Option)
Pin 25
SP2 (Quad 5A SPST Relay Option), SP3 NO (10A SPDT Additional Relay Option)
Pin 26
SP3 (Quad 5A SPST Relay Option)
Pin 27
SP3 (Quad 5A SPST Relay Option), SP4 COMM (10A SPDT Additional Relay Option)
Pin 28
SP4 (Quad 5A SPST Relay Option), SP4 NC (10A SPDT Additional Relay Option)
Pin 29
SP4 (Quad 5A SPST Relay Option), SP4 NO (10A SPDT Additional Relay Option)
Summary of Contents for IMI SENSORS 683A101001
Page 30: ......
