961-20A0-010 Datasheet, PDF (11/36 Pages) Magnetrol International, Inc. – Ultrasonic Single and Dual Point Level Switches

2.4.4 Model 962 Loop-powered Wiring
For intrinsically safe installations, refer to the Agency
Drawing in Section 3.6.1. Loop wiring connections are
suitable for 12–24 AWG wire.
Hi 22
Lo 3.6
FAULT
TEST
MODEL 962
LOOP
TEST
TIME
DELAY
8 12 16
–+
Ground
Figure 12
Model 962 Loop Power Wiring
Caution: OBSERVE ALL APPLICABLE ELECTRICAL CODES
AND PROPER WIRING PROCEDURES.
1. Make sure the power source is turned off.
2. Unscrew and remove housing cover.
3. Pull twisted pair wire through the conduit connection.
4. Refer to Figure 12. Connect wires to terminals (+) and (-)
on the terminal block. Unshielded cable may be used. If
shielded cable is used, attach shield to green head screw.
5. Prevent moisture seepage into housing by installing an
approved seal drain fitting in the conduit run leading to
–+
the unit.
6. Wiring is complete. Replace housing cover.
Caution: In hazardous areas, do not power the unit until the
conduit is sealed and enclosure cover is screwed
down securely.
2.4.4.1 Model 962 Remote Transducer Housing Wiring
Remote mount Model 962 units have a “1” in the 8th
digit (962-XXXX-1XX) of the model number. The
037-3317-XXX cabling is connected at the factory on the
electronics end and secured with a cable tie. The other end
of the cabling is connected by the user inside the remote
transducer housing at terminal blocks marked as
1 2 3 4 5 6 7 8 on a blue label. See Figure 13 for proper
terminations.
51-646 Echotel^® Model 961 & 962 Ultrasonic Level Switches
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