7
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
Note: When operated from a 24 VDC source, the maximum
allowable loop resistance is 480 ohms for Analog EZ
Modulevels. See Figure 9.
When operated from a 120 or 240 VAC source, the
Analog EZ current can only be monitored from the
meter terminals (M+ and M-) using a multimeter with
maximum sensitivity of 100 millivolts.
Caution:
Instrument and conduit junction box covers must
be in place and tightly sealed at all times during
operation.
2.2 Remote Transmitter Wiring
Note: Before connecting the power supply to the transmitter,
be sure that the voltage identification on the name-
plate 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 of the remote transmitter and of the
LVDT housing.
2. Connect one end of the six conductor cable (P/N
037-3218-xxx or 037-3220-xxx) to the LVDT terminal
block and the other end to the terminal block within
the remote transmitter housing. Be sure to match the
six discrete numbered wires with the numbers on each
terminal block. See Figure 10.
3. Wire the power supply to the terminal board in the
junction box and seal the conduit per the instructions in
Section 2.1
.
Note: When operated from a 24 VDC source, the maximum
allowable loop resistance is 480 ohms for Analog EZ
Modulevels. See Figure 9.
When operated from a 120 or 240 VAC source, the
Analog EZ current can only be monitored from the meter
terminals (M+ and M-) using a multimeter with maximum
sensitivity of 100 millivolts.
Caution:
Instrument and conduit junction box covers must
be in place and tightly sealed at all times during
operation.
2.3
Hazardous Location Wiring
Figure 11 illustrates the proper installation for Intrinsically
Safe wiring. Figure 12 illustrates Intrinsically Safe
Connections/Non-incendive wiring. See page 9.
NOTE: Intrinsically Safe Connections require that the remote
mount electronics and LVDT housings must be installed
explosion proof.
– VE
meter
D
C
–
D
C
+
Red
+ VE
meter
M
–
Meter
Black
0
2
0
4
0
6
0 80
100
(+) 24 vDC
(–) 24 vDC
EZG, EZI, EZF, EZK, GZK,
GZT, RZT and RZX Transmitter with Meter
24 Vdc Supply Conduit Junction Box
Figure 8
(+) 24 VDC
Red
Black
D
C
–
(
–
) 24 VDC
M
–
D
C
+
EZA, EZD, EZE, EZH, GZH,
GZQ, RZQ and RZW Blind Transmitter
24 Vdc Supply Conduit Junction Box
Figure 7
