A&D AD-1641, Инструкция по эксплуатации

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8
Turn off the AD-1641 (except during the interval recording or when power is
supplied from a source other than batteries)
Note
 If the air flow sensor is not connected to the main unit, air flow cannot be
measured. "AF" is only displayed when the air flow sensor cable is connected.
■
The air flow sensor only measures air flow that comes from the front.
■
If the measurement value is not zero when there is no air flow calibrate the
AD-1641 referring to "calibration of wind speed values" in "5.Air Flow Calibration"
before using the AD-1641.
■
The air flow measurement battery life is approximately 20 hours.
■
Display turn off time can be changed in the "time to display off (POWER SAVE)"
of "7.4.Internal settings."
If there has been no operation for over one minute, the
display will turn off automatically when battery power is being used.(The factory
setting)
■
During the interval recording, should the recording data memory become full, the
interval recording stops automatically and, the power is turned off.(The factory
default recording system "FUNCTION" setting is "ONE-TIME".)
 Temperature and humidity sensor unit is replaceable (life approximately 2 years).