Wiring.procedure - UTC Fire and Security DET-TRONICS 95-8522 Instructions Manual

Volumetric ir process gas monitor pirvol series
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Figure 6—Tall PIRVOL Junction Box with Window
WIRING PROCEDURE
IMPORTANT
Do not apply power until the wiring procedure is
complete and has been verified.
1. Locate the sensor where it will be accessible for
maintenance. Excessive heat or vibration can
result in premature failure of any electronic device
and should be avoided if possible.
2. The junction box should be electrically connected
to earth ground.
3. Figure 8 shows typical wiring for stand alone
operation. Figure 9 shows typical wiring for
PIRVOL with Det-Tronics supplied junction box.
Figure 10 shows the wiring terminals located
inside the junction box. The PIRVOL wiring color
code is:
Red lead
=
Black lead
=
White lead
=
Yellow lead* =
Green lead =
* If the calibration wire (yellow lead) is not
being used, do not connect this wire to
ground. Trim excess length and insulate wire
so no shorting can occur.
4.1
+24 volts dc
– (common)
4 to 20 ma signal output
Calibration input
Chassis ground
Figure 7—Short PIRVOL Junction Box
PIRVOL
RED
BLaCK
WhITE
yELLOW
GREEN
NOTES: CaLIBRaTION PUShBUTTON, CURRENT METER
aND POWER SUPPLy aRE NOT SUPPLIED.
CaLIBRaTE SWITCh ShOWN INSTaLLED, hOWEVER,
FIELD CaLIBRaTION IS NOT REqUIRED UNDER
NORMaL CIRCUMSTaNCES.
Figure 8—Typical PIRVOL Wiring, Stand Alone Configuration
DET-TRONICS JUNCTION BOX
SPARE
4-20 mA IN
4 – 20
+
24 Vdc
+
Figure 9—Typical PIRVOL Wiring,
with Det-Tronics Junction Box
7
+
+
24 VDC
POWER SUPPLy
+
4 TO 20 MILLIaMPERES
DETECTOR
CHASSIS
CAL
CAL
GREEN
YELLOW
4 – 20
WHITE
RET
RET
BLACK
RED
+
+
24
24
CaLIBRaTE
A2031
PIRVOL
B1756
95-8522

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