6
Getting Started
§2
Charging Batteries
This instrument operates on the internal rechargeable battery or the provided AC adaptor.
Connect the provided AC adaptor to start charging. It takes approximately 5 hours to
charge the battery completely.
If the battery
’
s run-time becomes shorter, the battery is replaceable. Open the
compartment to replace the batteries with new 18650 Lithium-ion rechargeable batteries
with protection circuit. (69mm length).
Caution
Rapid temperature changes may cause measurement errors. When moving the
instrument from one location to another with different ambient temperature allow a
sufficient time for the instrument to return to room temperature. (more than ten
minutes )
Checking the Temperature/Humidity Probe
(
Optional accessory for the MODEL 3889
)
Prolonged measurement under high temperature conditions or measurement under rapid
temperature change may result in abnormally high humidity readings due to condensation.
If condensation occurs, leave the probe in atmosphere of 40%RH or less for 24 hours to
dry the probe.
Turning the Power ON/OFF
Press and hold the Home button to turn the power on. A logo appears and then it turns
to the startup screen. When the pump and other parts are ready to perform a
measurement, the Main screen for ready to measure will be displayed.
To turn the power OFF, press and hold the Home button (3 second or more) from any
screens.
Measurement Procedures
§3
Turning the Power ON
Press and hold the Home button to turn the power on. A logo appears and then it turns
to the startup screen. Touch the startup screen to display the Main screen ready to
measure.
Internal Cleaning
Prior to use, purge the instrument (for internal cleaning) with the provided zero filter.
Remove the Inlet protective cap, and attach the provided zero count filter to the inlet.
Turn the power on and press the Start button. Perform a continuous measurement for
10 to 15 minutes until the measuring count value is suitable for 10 sec. or more.
After measurement, remove the zero count filter from the inlet.
Summary of Contents for 3888
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