Relative Humidity Compensation Adjustment; Change Formaldehyde Unit (Ppm Or Mg/M3); Beeper Activate Or Inactivate Selection - Extech Instruments FM100 User Manual

EXTECH INSTRUMENTS
Relative Humidity Compensation Adjustment
When is shown on the display, press and hold the control button to enter the relative
humidity compensation adjustment mode. Momentarily press the control button to make a
step change in the RH% offset; the range is ‐9 to +9 RH %. When done, press and hold the
control button to save the setting. The meter will return to the normal mode.
Warning: While performing the compensation adjustments, do not touch the sensor, as
accuracy may be lost when adjusting the temperature values.
Warning: While performing temperature or RH% compensation adjustments do not touch
the slotted openings on the meter housing, these are where the sensors are located.
Otherwise, accuracy may be compromised.
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Change Formaldehyde Unit (ppm or mg/m )
When is shown on the display, press and hold the control button to enter the unit
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selection mode. Choose the units (ppm or mg/m ) by momentarily pressing the control
button. Once the desired units are chosen, press and hold the control button to save the
setting. The LCD display will return to the normal measurement mode.
Beeper Activate or Inactivate Selection
When is shown on the display, press and hold the control button to enter the alarm
(beeper) setting mode. Momentarily press the control button to toggle the beeper
condition ON or OFF. Once selected, press and hold the control button to save and return
to the normal mode of operation.
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