Det-Tronics U7652B, C Unitized UV/IR Flame Detector User Manual

Page 16

• For the IR module, thread the wire leads and

keyed connector plug through the slotted open-
ing on the side of the IR module. Plug the IR
module intor the two banana plugs inside the
junction box cover (Figure 17). Connect the
keyed plug to the 4-pin connector on the IR
module. Tuck the leadwires inside the module
to prevent binding or wire damage.

Ensure that the O-rings at the base of the sensor
housing are positioned correctly and are in good
condition. (Refer to the “Maintenance” section for
complete information regarding care of O-rings.)

Re-install the sensor housing. Hand tighten the
sensor housing into the base until the O-ring is
fully seated.

Re-install the cover locking device (if used).

Inspect the viewing windows and

rings and

clean if necessary. Also check the position of the

rings (refer to Figure 2).

10. Perform the “Startup and Checkout Procedure

(Manual

Test)” as described in this manual

before returning the system to normal operation.

B1330

JUNCTION BOX

MOUNTING PINS

oi TEST LAMP (2)

O-RING

IR SENSOR HOUSING

IR oi RING

UV SENSOR MODULE

O-RING

oi TEST LAMP

UV SENSOR HOUSING

UV oi RING

IR SENSOR MODULE

UV TERMINAL BLOCK

MOTHERBOARD
ASSEMBLY

LED (2)

BANANA PLUG

LED (2)

JUNCTION BOX COVER

IR CONNECTOR PLUG

Figure 15—U7652 Detector Parts Identification

Figure 16—Self Aligning UV Sensor Module