Maintenance Of Analog Ez Modulevel; Replacing Transmitter Pc Board; Replacing Power Supply Pc Board - Magnetrol ES Modulevel Installation And Operating Manual

Mounting Screws (4)
P4 P3
(—) (+)
P4 P3
4 mA SET
— TB1 +
R8
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E Z MODULEVEL
5300 BELMONT ROAD,
DOWNERS GROVE, IL 60515,
USA.
HEIKENSSTRAAT 6,
B 9240 ZELE,
BELGIUM.
www.magnetrol.com
REFER TO MODULEVEL MANUAL,
BULLETIN 48-615, FOR
INSTALLATION AND OPERATION
INSTRUCTIONS.
TP2
ASSEMBLY PART NO.
30-2163
REV.
S1
DIR.
J1
TP1
05-9118-001
Figure 24
Analog EZ Transmitter PC
Board Connections
Spade connectors
P5 P4 P3
P2 P1
Spade
Connectors
Figure 25
Analog EZ Power Supply
PC Board Connections
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
4.4

4.4.1 Replacing Transmitter PC Board

1. Remove power from the unit.
2. Remove transmitter housing cover.
Potentiometer
3. Remove the two wires from spade connectors P3 and P4
Cable
Connector
Pins (J2)
4. Unplug the potentiometer cables from the PC board con-
5. Unplug the LVDT eight pin connector from the socket
R13 AGC
6. Clip the plastic tie wrap which holds the cable to the PC
LVDT Eight Pin
Connector (J1)
7. Remove two screws which secure the PC board bracket to
8. Remove the four screws which hold the PC board to the
9. Carefully remove the transmitter PC board from the trans-
10. Install new PC board by reversing above steps. Be certain
4.4.2 Replacing Power Supply PC Board (120 and 240 VAC
1. Remove power from the unit.
2. Remove transmitter housing cover.
3. Mark the five wires connected to P1 through P5 and then
4. Remove the four screws which hold the PC board to the
Mounting
Screws (4)
5. Carefully remove the power supply PC board from the
6. Install new PC board by reversing above steps. Be certain
Maintenance of Analog EZ
Modulevel
Refer to Figure 24 during this procedure.
To remove old transmitter board:
and shield wire from the board mounting screw on the
transmitter PC board.
nector pins at J2.
at J1.
board.
housing base and carefully remove board / bracket assembly.
bracket.
mitter housing.
that the red wire is attached to P3 and the black wire is
attached to P4.
controls only)
Refer to Figure 25 during this procedure.
To remove old power supply board:
remove the wires from these connectors.
bracket.
transmitter housing.
that each wire is connected to the same spade connector as
on the original PC board.
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