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Warning: Remove batteries when not use to prevent battery leakage (Out of warranty) and
power consumption.
OPERATION:
1. For each operation, make sure you are using fresh batteries, same brand, same power of
batteries is required, and otherwise meter shows erratic readings or leakage. Warranty is void if
not follow the notices. (Note：remove batteries when not use！)
2. You may use an optional AC/DC adaptor to operate supply power to operate the meter.
3. Make sure sensor probe and meter are well connected, meter shows "00000" (O
up) on each display.
4.
Don't attempt to detach sensor probe from meter while in operation or during datalogging. Meter
shows erratic readings and might damage sensor or working fan.
PROBE LED INDICATION:
Color
Cable connected to meter and meter is powered on.
Fan is in working conditon. When the fan is inactivated, red light is always on.
When the fan is activated, red light is flashing.
POWER:
NOTE: Make sure you have connected the probe to the meter before power on.
Momentarily press PWR button to turn on the meter, press and hold PWR button to turn off meter.
There are two ways to provide power: (a) AAA batteries x 6pcs, or (b) AC/DC adaptor 9V.
(a) Battery icon shows up when power is weak, replace with new batteries immediately as the
readings now on LCD are incorrect due to weak power.
(b) For short time measurement, you may power on by batteries. For datalogging or long time using, you
must connect with an AC/DC adaptor.
AUTO POWER OFF:
Meter will turn off automatically in 15 minutes when no use, to disable Auto
Power Off function by press HOLD and PWR button when meter is OFF, LCD
shows "n", then turns to normal measurement mode. When the power is weak,
battery icon
displays on screen and O
recommend replacing with new batteries, DO NOT try to use used batteries to
operate.
MEASUREMENT:
Press PWR button, meter shows full screen (icons) in one second, and after warming up for few minutes,
meter goes to normal measurement mode, green LED turns on and electric fan in probe is working, now you
get current O
, Temperature and RH% readings.
2
Description
reading might not correct, strongly
2
sensor is warming
2
3
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