11. Clean the viewing window and
oi
ring using the
procedure described in the “Maintenance” section.
12. Install any optional accessories (such as air
shields).
EQ2200UVHT HIGH TEMPERATURE UV FLAME
DETECTOR
WARNING
Do not open any junction box or device enclosure
when power is applied without first de-classifying
the hazardous area.
Electronic Module Assembly
1. Mount the device on a solid surface that is free of
vibration.
2. Remove the cover from the junction box.
3. Loosen the three captive screws that hold the
electronic module to the terminal wiring board and
remove the module. See Figure VII-25.
4. Loosen (do not remove) the two captive screws that
secure the terminal wiring board inside the junction
box, and remove the terminal wiring board. See
Figure VII-26. (The terminal blocks are located on
the bottom side of the terminal wiring board.)
5. Connect the UV detector wires to the appropriate
points on the P3 terminal. Connect the 24 vdc
power wires and the communication network cable
to the appropriate points on the P2 terminal. See
Figure VII-27 for terminal identification. Note that the
plug-in terminals can be removed to facilitate wiring.
95-8470
VII-17
TERMINALS 1 AND 2 — 24 VDC POWER SUPPLY (
+
)
TERMINALS 3 AND 4 — POWER SUPPLY (
–
)
TERMINAL 5 — COM 1 A
TERMINAL 6 — COM 1 B
TERMINAL 7 — SHIELD
TERMINAL 8 — COM 2 A
TERMINAL 9 — COM 2 B
TERMINAL 10 — SHIELD
1
2
3
4
5
6
8
9
7
10
24 VDC
COM 1
COM 2
A1873
+
–
Figure VII–22—EQ2200UV Detector Wiring Terminals
A1895
MOUNTING SCREWS
BULKHEAD
ADDRESS
SWITCHES
Figure VII–23—Electronic Module Mounted Inside Bulkhead
SPLIT IN
oi
RING
(MUST BE POSITIONED
ON THE DOWNWARD SIDE
OF UNIT WHEN MOUNTED)
LEDs
UV TEST LAMP
*
OPENING
B1891
oi
RING
*
UV TEST LAMP OPENING MUST NOT BE ALIGNED WITH SPLIT IN
oi
RING
Figure VII–24—Viewing Window of UV Detector
LOOSEN THREE SCREWS
TO REMOVE ELECTRONIC MODULE
ELECTRONIC MODULE
TERMINAL WIRING BOARD
A1992
Figure VII-25—Electronic Module Installed on Terminal Wiring Board
