Heath Consultants Detecto-Pak 4 (DP) - Manual (Page 27)

O
peration
100786-0 Rev. D 05/09
20
4. Insert the fuel cylinder into the cylinder holder at the rear of the
instrument. Turn the cylinder clockwise until the high pressure gauge
moves upscale. Turn cylinder an additional 1/4 to 1/2 turn, or until
snug. Do not over-tighten the cylinder.
5. Replace the sample inlet filter if dirty, contaminated, or wet. A clean
filter should always be inserted in the filter cup prior to each use.
Replace filter daily or more often if required. (See Chapter Eight,
Section VIII - B, Filter Replacement, for details.)
6. Attach extended probe assembly to the Detecto-Pak 4 by firmly
pressing the connector on the end of hose into the quick connector
on the filter housing.
7. Depress the POWER switch. Continuous alarm will sound until the
fuel is ignited in the detector cell. NOTE: When first turned on,
the alarm will sound and then will be silent for approximately eight
(8) seconds. Then the continuous flame out alarm will sound until
instrument is ignited.
8. Press Battery test switch. Meter needle should indicate in the green
zone.
9. Depress Range switch to put instrument in the 10K ppm range and
allow one (1) minute for fuel line to purge.
CAUTION
Instrument MUST be ignited in the 10K ppm range.
10. Press the Igniter button. The continuous “flame out” alarm should
stop within twenty five (25) seconds. This indicates the fuel in the
detector cell is ignited. If continuous alarm is still on, repeat this
step until the continuous alarm stops.
11. Allow five (5) minutes for the Detecto-Pak 4 to warm up. Warm
up may take up to fifteen (15) minutes during cold weather. It is
advisable to store the Detecto-Pak 4 in a warm room overnight rather
than to leave it outside in cold weather.
12. Zero meter using the ZERO switches
CAUTION
Care should be taken that instrument and operator are in a nonflammable
(clean air) atmosphere.