Large Display Temperature Meters
Instruction Manual
27
Optional Relays & 4-20 mA Output Terminals
Depending on model number, Options PCB may contain 2 or 4 relays and/or an
isolated 4-20 mA output transmitter. Relay connections are made to removable
screw terminal connectors located at J3 and J4 on the Option PCB. Connections
for the isolated 4-20 mA output option are made to J1 on the Options PCB. For
location of connectors, refer to:
Figure 24 on page 57 for PD755.
Figure 25 on page 58 for PD756.
Figure 27 on page 59 for PD757.
J1
J3
J4
PD375
PD475
PD376
PD476
PD374
PD474
PD377
PD477
PD378
PD478
Figure 8.
Relay and 4-20 mA Output Terminals
