Heath-consultants Optical Methane Detector (OM) Uživatelský manuál stáhnout pdf (Strana 36)

PROBLEM SOLUTION

Display is blank: Press and hold contrast

down button for approx.

15 seconds or until

writing appears on screen.

If display is still blank,

repeat with contrast up

button. If screen is still

blank call The Heath

Customer Service Depart-

ment.

Audible alarm not sounding: Press and hold speaker

for 15 seconds. Lower

the alarm set point until

it’s approx. two PPM

above PRESENT. Press

CALIBRATION TEST

button to test alarm. If

audible alarm still doesn’t

work, call The Heath

Customer Service Depart

ment.

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Heath-consultants Optical Methane Detector (OM) Uživatelský manuál Strana 36