Ametek Land 4500 MKIII, User Manual

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Opacity and Dust Monitor
User Guide
Model 4500 MkIII
A - 26
A4.6 24V DC Input (from APS or external supply)
Terminal Function APS Connection (if APS fitted)
29 +24V DC Supply Input Red
30 0V DC Supply Input Black
31 Cable Screen Yellow/Green
A4.7 DC Supply to Transceiver
Terminal Function Transceiver Cable A
32 +24V DC Output Red
33 24V DC Return Blue
34 EARTH Screen
35 EARTH
A4.8 RS485 Modbus Master Port (To Transceiver)
Ensure links 1 and 2 are fitted
for 2 wire operation.
Terminal Function Transceiver Cable C
54 Cable Screen
55 Cable Screen Screen
56 Modbus RXD1 Green
57 Modbus RXD0 Yellow
58 Modbus Common Black
59 Modbus TXD0
60 Modbus TXD1
A4.9 RS485 Modbus Data Output Port
For 2 wire operation, connect 53 to 49 and 52 to 50.
Terminal Function
47 Cable Screen
48 Cable Screen
49 Modbus TXD1
50 Modbus TXD0
51 Modbus Common
52 Modbus RXD0
53 Modbus RXD1