67
Reference Manual
00809-0200-4702, Rev CA
Section 7: Mounting, Wiring Switches and Out-
put Circuits, Models 702DX32 and 702DX42
February 2013
Mounting, Wiring Switches, and Output Circuits:
Models 702DX32 and 702DX42
7.3
Wiring switches and sensors
7.3.1
Dry Contact Inputs, Measurement Option Code 32, 42
(702DX32, 702DX42)
702 Transmitter Terminal Block
The 702 transmitter has a pair of screw terminals for each of two channels, and a pair of
communication terminals. These terminals are labeled as follows:
Figure 7-5. Rosemount 702 Terminal Diagram
7.3.2
Dry contact switch inputs
Dual input
The 702 transmitter will accept the input from one or two single pole single throw switches on
inputs CH1 and CH2. The wireless output of the transmitter will be both a primary variable (PV)
and a secondary variable (SV). The PV is determined by the CH1 input. The SV is determined by
the CH2 input. A closed switch drives a TRUE output. An Open switch drives a FALSE output.
CH1+:
Channel One Positive
CMN:
Common
CH2+:
Channel Two Positive
CMN:
Common
COMM:
Communication
