4.1
WIRING—
The PIRVOL has five 22 AWG wires, 20 inches (50
cm) long.
Red = + 24 volts dc
Black = – (common)
White = 4 to 20 milliampere signal output
Yellow = Calibration input
Green = Chassis ground
Power Wiring: 18 AWG minimum is recommended for
power wiring. Larger diameter wire may be required
to maintain a minimum of 18 vdc (including ripple) at
the sensor for all operating conditions (see Figure 2).
For maximum EMI/RFI protection, shielded cable is
recommended.
TEMPERATURE RANGE—
Operating: –40°F to +167°F (–40°C to +75°C).
Storage:
-40°F to +185°F (–40°C to +85°C).
HUMIDITy (non-condensing)—
0 to 99% relative humidity (Det-Tronics verified)
5 to 95% relative humidity (CSA verified).
RFI/EMI PROTECTION—
EN50081-1. Class B, EN50082-1 (IEC 801-2, 3, 4).
Operates properly with 5 watt walkie talkie keyed at 1
meter.
ENCLOSURE MATERIALS—
Copper-free aluminum (clear anodized) enclosure.
Stainless Steel (316 electropolished) enclosure.
SAMPLE DRAW CUP—
Material:
Aluminum.
Fittings:
Brass.
Tubing Size: 1/4 inch O.D.
MOUNTING—
Det-Tronics junction box, available in a tall cover (with
window) or a short cover version, is recommended
for optimum ease of installation. PIRVOL can be
threaded into any approved junction box suitable for
the specific application. Junction box thread options:
• 3/4 inch NPT
• M20.
3
95-8522
Figure 2—PIRVOL Wiring Requirements
Cross Sensitivity of PIRVOL-LT to Propylene
Propylene
% Gas
Reading
0%
0
20%
>120
40%
>120
60%
>120
80%
>120
100%
>120
Cross Sensitivity of PIRVOL-LT to Ethylene
Ethylene
% Gas
Reading
0%
0
20%
113
40%
>120
60%
>120
80%
>120
100%
>120
C1962
18
20
22
24
POWER SUPPLy VOLTaGE (VDC)
26
28
30
32
MaxIMUM DISTaNCE FROM POWER SUPPLy TO POINTWaTCh IN FEET
16 aWG
14 aWG
12 aWG
18 aWG
500
1000
1500
2000
2500
0
