Honeywell 700 User Manual page 9

Connection of the Honeywell type C330S cable to the viewing
head plug is shown in Fig. 7. Cable preparation should be
done as follows:
1. Prepare C330S wire at plug end similarly to Fig. 5.
2. Assemble the field-wireable plug as shown in Fig. 7.
Ensure that:
a. Wires and LEDs are in proper locations per Fig. 4.
GREEN LED
SOLDER DRAIN WIRE
TO EITHER INTERNAL
HOLE IN HOUSING
Protecting the Viewing Head Cable
(Connector Series)
Note that when the wiring needs to meet Class I, Division 2
requirements for use in hazardous locations and when conduit
is used, the conduit must be sealed where the cable passes
from the hazardous location to the non-hazardous location in
order to keep potentially hazardous gases from being
conducted into the non-hazardous area.
Viewing Head Connector LED
Indicators
HONEYWELL MODEL 700/800 SIGNAL PROCESSOR AND VIEWING HEAD
NOTE: IMPORTANT INSULATE DRAIN WITH SHRINK TUBING LEAVING 3/8" STICKING OUT.
Fig. 5. C330S Signal Processor End Cable Preparation.
ORANGE LED
Fig. 6. Soldered Drain Wire Location.
Fig. 7. ASY786 Viewing Head Plug Assembly with C330S.
b. Braided shield is on outside of ferrule, and pressed
against housing when assembled.
c. Solder drain wire to housing at one of two holes at
entry (see Fig. 6).
d. Connector back plate gasket is in place before
installation.
e. After assembly, check that connector is tight and
well secured.
STRIP 3/8 INCH TYPICAL
BRAIDED SHIELD TO COVER
HOUSING FERRULE
The viewing head connector has orange and green LEDs
which can be viewed from the rear of the connector when the
connector cover is removed.
The green LED displays the pulses out of the viewing head
and the orange LED shows that the self-checking signal from
the signal processor is reaching the viewing head. If power is
on at the signal processor, the orange LED should flash at one
pulse per second, even if the viewing head is not plugged in.
This is helpful in troubleshooting.
With no flame signal present, the green LED will flash one
pulse per second in step with the self-checking signal. The
viewing head is sending back an ID pulse; this is part of the
self-checking system. When a flame is present, the green
LED will flash at a rate proportional to the flame signal, except
9
1-19/64 (33)
TYPICAL
M35139A
M35140
M35289A
66-2069EP—04