Series EZB, EZC, GZR, GZS,
GZ2 and GZ3 Blind Transmitters
120 and 240 VAC Supply Conduit Junction Box
AC, High (black)
AC, Ground (green)
AC, Low (white)
(+) 4-20 mA output
(–) 4-20 mA output
To
Transmitter
Housing
2.0
Analog EZ Modulevel Wiring
and Calibration
Caution:
The Analog EZ Modulevel Transmitter operates at
voltages 12–36 VDC, 120 VAC or 240 VAC.
Incorrect voltages will damage the transmitter.
All wiring between the power supply and the Modulevel
transmitter on 24 VDC units should be made using
18-22 AWG shielded twisted pair instrument cable or on
120 VDC and 240 VAC units should be made using a
quantity of 14-16 AWG conductors and ground. All wiring
connections to the transmitter are made in the attached
junction box.
NO WIRING CONNECTIONS ARE REQUIRED
INSIDE THE TRANSMITTER HOUSING ON
INTEGRAL UNITS. Instructions for wiring the
Modulevel transmitter depend on type of mounting, inte-
gral or remote, and the area classification required, intrinsi-
cally safe, explosion proof or non-incendive.
WARNING!
Turn off all power before making any electrical
connection.
2.1
Integral Transmitter Wiring
Note: Before connecting the power supply to the transmitter,
be sure that the voltage identification on the nameplate
matches the power supply. Do NOT attempt to operate
this unit at voltages other than as identified as it will
damage the unit.
1. Remove the cover to the junction box of the transmitter.
2. If unit is supplied with meter, access terminal board by
removing the two screws securing the meter/bracket assem-
bly to the junction box housing and moving meter/bracket
assembly out of the way. Do not disconnect wires. If unit
has no meter, terminal board is already accessible.
3. Install an approved conduit seal within 18" of the junction
box for explosion proof installation. For IS installation, see
page 9.
4. Pull the supply wires and connect to the terminals as indi-
cated in the wiring diagram for the unit having the appro-
priate voltage and meter configuration, see Figures 5, 6, 7
& 8 on pages 6-7.
5. Replace meter/bracket assembly, if supplied, by positioning
the holes in the bracket assembly over those in the junction
box housing and replacing the two screws.
6. Replace the junction box cover. Ensure that the cover is
tightened down sufficiently to compress o-ring seal.
6
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
Series EZL, EZN, GZU, GZV,
GZ5 and GZ6 Transmitters with Meter
120 and 240 VAC Supply Conduit Junction Box
– VE
meter
+ VE
meter
Meter
0
20
4
0
6
0 80
100
AC, High (black)
AC, Ground (green)
4-20 mA
output
To
Transmitter
Housing
AC, Low (white)
4-20 mA output
M
–
M
+
Figure 6
Figure 5
