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Model PD690 Universal Process Meter Instruction Manual
10
SETUP AND PROGRAMMING
Power, Signal, External Functions & Options Connections
Disconnect power to the meter before making any connections.
Do not connect power or earth ground to any unused or CM terminals.
Observe polarity for DC powered Meters. Applying voltage with
reverse polarity may damage the instrument.
Connecting 230 VAC to a meter specified to accept 115 VAC or con-
necting AC power to a meter specified to accept DC power will result
in damage to the instrument as well as endanger personnel. Keep pri-
mary wires separated from signal cables.
Notice:
• Primary voltages must not be accessible to the user.
• Primary wires must be installed in accordance to the applicable
standards.
Terminals Designation
Terminal Description
L, L AC input power
V+, V- DC input power
P+, P- 24 VDC output
power
S+, S- Input signal
AK External relay
acknowledge
Terminal Description
H Hold reading
CM Common (return)
for AK and H
+, - 4-20 mA output
1-6 Relay 1-4
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