
2
About The Meter
10
2.6 BACK OF THE METER (Continued)
Table 2-2. Connector Description
Connector
Description
TB1-1
Setpoint 1: Normally Open (N.O.1) connection
TB1-2
Setpoint 1: Normally Closed (N.C.1) connection
TB1-3
Setpoint 1: Common (COM1) connection
TB1-4
Setpoint 2: Normally Open (N.O.2) connection
TB1-5
Setpoint 2: Normally Closed (N.C.2) connection
TB1-6
Setpoint 2: Common (COM2) connection
TB1-7
ac Line connection (no connections on dc-powered units)
TB1-8
ac Neutral connection (+ Input on dc-powered units)
TB1-9
ac Earth ground (dc-power Return on dc-powered units)
TB1-10
Analog Voltage Output connection
TB1-11
Analog Current Output connection
TB1-12
Analog Return connection
TB2-1
+R: RTD connection Pin 1 connection
TB2-2
-R: RTD connection Pin 2 connection
TB5-1
Isolated Analog Voltage Output connection
TB5-2
Isolated Analog Current Output connection
TB5-3
Isolated Analog Output Return connection
J3
Main pH or pH/ORP input BNC connector