Testboy 90 Mode D'emploi page 21

Functional test
Switch on the Testboy
Hold a gas lighter close to the sensor (3), let gas escape out of
the lighter without a flame burning. The yellow and red LEDs
flash and the warning sound beeps.
If this does not happen, the batteries are empty or there is some
kind of defect. Secure the instrument against accidental re-use.
Finding a leak
Switch on the Testboy
Approach the suspected point of leakage with the sensor (3).
Move the sensor slowly over the suspected location. As you
draw nearer to the leak, a warning sound beeps and the yellow
LED (~2 %) flashes. The red LED (~10 %) comes on when it is
directly at the point of leakage.
LED green: Device set – Gas less than 500 ppm
LED yellow: low alarm – Gas more than 500 ppm
LED red: critical alarm – Gas more than 2000 ppm
Changing the batteries
Twist off the battery compartment lid (2). Replace the old batteries
with new ones. The battery plus pole must point towards the
instrument interior. Close the instrument by putting the battery
compartment lid back on.
Take care to ensure the correct polarity of the batteries!
Testboy ® 90
®
90 and wait until it is ready for operation.
®
90 and wait until it is ready for operation.
Operation
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