Varec 2920 Installation And Operation Manual page 56

2920 Float & Tape Transmitter
Connector / Function
J17 – Alarms (Discrete Inputs)
J6 – Serial Connection (RS-232)
J18 – 3 Wire RTD Input
J12 – 4-20 mA Analog Input
J7 – Dual Channel 4-20 mA Analog
Output
J11 – HART Interface
J1 – CAN Interface
(Controller Area Network)
J8 – LCD Interface
J9 – Button Interface
46
Terminal Assignment
1 Common
2 Alarm 1
3 Common
4 Alarm 2
2 Receive Data (RXD)
3 Transmit Data (TXD)
5 RS-232 Gnd
1 A - RTD Signal
2 B - Return 1
3 C - Return 2
1 +24 VDC Output (50 mA maximum)
2 Analog Input Signal
3 +24 VDC Return
1 AO Channel 2 Return
2 AO Channel 2 Signal
3 +24 VDC Output (50 mA maximum)
4 AO Channel 1 Return
5 AO Channel 1 Signal
1 HART Return
2 HART Signal
1 CAN H
2 CAN L
Liquid Crystal Display Interface
Configuration Button Interface
Description
All Transmitters
All Transmitters
All Transmitters
Order Code Dependent
Order Code Dependent
Order Code Dependent
Order Code Dependent
All Transmitters
All Transmitters
Installation and Operations Manual
4 Wiring