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WatchGas BAT-1, 2, 3 Breathing Air Quality Test Kit
Full Compliance with BS EN12021
Figure 10: Holding the Hygro-Thermometer in front of the
gas
Figure 12: Placing the detector tube in the rubber tube
holder
7.
Break off the other end of the detector tube (air entry
side) and immediately insert the open tube tightly into
th other end of the detector tube holder (close to test
device). (see fig. 12).
9.
Remove the detector tube of CO, CO
printed scale on the tube, on the Air Quality Analysis Form, and apply the relevant correction factor according to the
manual of each gas detector tube, for temperature and humidity measured with the Hygro-Thermometer.
10.
After concluding the sampling time remove the Oil detector tube from the sampling device and bend at the indicated
point (between two arrowheads) to break the internal reagent filled ampoule (Caution: the ampoule contains concentrated
sulfuric acid).
11.Allow the ampoule fluid to flow onto the indicator layer, apply pressure of the breathing air cylinder through regulator
& manifold, until the indicator layer is covered approx. 10 mm with the ampoule fluid.
12.Wait 1 minute before evaluating the indication. If no colour change occurs, the oil content within the pressurized gas
sample is below the detection limit of the detector tube and below the evaluated reference value of interest 0.1 mg/m
mg/m
, 0.5 mg/m
resp. 1.0 mg/m
3
3
13.To dismantle the BAT, close the valve of the breathing air cylinder to remove the pressure, and unscrew the regulator of
the cylinder.
Optional:
When required to test NOx, O
funnel
and H
O after 5 minutes from the tube holder and take the readings from the
2
2
.
3
, SO
, PH
, H
S, or NH
please contact WatchGas for more information.
2
2
3
2
3
User Manual
Figure 11: Breaking off both tips of a detector tube
6.
Break off the detector tube tips at the air exit side
(see fig. 11)
Put the detector tube into the correct tube holder,
inserting broken-off end tightly into the holder side
away from the test device.
8.
Immediately thereafter start the timer to the time
designated for the type of detector tube.
11
D e t e c t i o n
D e t e c t i o n
Figure 13: Timer
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, 0.3
3
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