18
OPERATION AND USE
6.
Prior to use, test the integrity of the sensor cap and tubing. Use your
finger to block the inlet of the sensor cap for 4-5 seconds. The display
will read FLOW BLOCKED if all seals are intact.
If this does not occur, change the sensor cap and “O” rings. A spare
sensor cap and “O” rings are supplied with each instrument. During
pump flow block, a beep will occur every 2 seconds and the green LED
will flash until adequate flow is present.
7.
It may be necessary to manually zero the instrument based on
company practices and environmental conditions. Always zero the
instrument in a clean air environment.
8.
When testing areas with elevated temperatures such as appliance
vents or flues, always attach the optional hot air probe to the end of the
sensor cap. These connections need only be finger tight. Failure to use
the approved probe can result in damage to the instrument and may
void the warranty.
⚠
CAUTION: Do not handle the steel portion of any hot air probe
after use. Burns may occur!