Overview
The following field wiring connections are made to removable screw
terminal blocks supplied with the meter:
Power, Signal Input, Acknowledge and Hold
Options: Relays & 4-20 mA Output
Figure 1: Rear View of Meter (Connectors)
Wiring Instructions
1. All field connections to be made with insulated copper wire, either
solid or stranded. Tighten all screw terminals to 7 in/lb (0.8 Nm).
Strip length =
1
/
2
in (7mm).
DO NOT
pre-treat wire with solder.
2.
Terminals L
&
L
: Use AWG #12-18 wire, 600 volt, 60°C. Connect
only one wire to each terminal on the 9-pin connector.
3.
Terminals AK, H, CM, S+, S-, P-, P+:
Use AWG #12-22 wire, 150
volt, 60°c. If using AWG #20 or smaller wire, up to 2 wires may be
connected to each terminal. If using AWG #18 or larger wire, only
one wire may be connected to each terminal.
Model LI1X Universal Process Meter
Instruction Manual
Model LI1X Universal Process Meter
Instruction Manual
11
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.
!
!
!
AK
H
S
S
P
P
L
L
+
+
-
-
-
+
J3
J2
J1
6
5
4
3
2
1
6
5
4
3
2
1
CM
Label
Main PCB (Lower)
Wire Size
None
Power 12-18
None
Signal, Acknowledge, Hold
12-22
Options PCB (Upper)
J1
4-20 mA Output
12-22
J2
Relays 1 & 2; NC, NO, Common
12-22
J3
Relays 3 & 4; NC, NO, Common
12-22
Spec Tech Industrial Electric
www.spectechind.com
888-773-2832
Spec Tech Industrial Electric
www.spectechind.com
888-773-2832
