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Meter Description
1.
Backlit LCD display
2.
Push-button keypad
3.
Probe in holder
4.
Tilt stand and Battery compartment (rear)
Meter Operation
Meter Power
1. The 42530 is powered by two (2) 'AA' 1.5 V batteries.
2. Remove the protective decal that covers the LCD display by peeling it off by its corner.
3. Press the ON/OFF key to turn the meter on. If the display does not appear, check that
the batteries are installed and fresh. Note that a plastic tab, which must be removed
before use, may be installed in the battery compartment between one of the batteries
and the electrical contact.
4. Press the ON/OFF key again to turn the meter off.
Measurements
1. Slide the Temperature – Relative Humidity Probe up from its holder and hold it in the
air. Do NOT immerse the probe in liquid. Allow time for the readings to stabilize. Note
that the sensor need not be removed from its holder to operate.
2. The temperature (upper left) and relative humidity (right) measurements will appear on
the LCD.
3. The 'Comfort Level' display (Wet, Dry, or Comfort icons) will appear at the center of the
LCD. 'Wet' indicates that humidity is above 70%. 'Dry' indicates that the humidity is
below 40%; 'Comfort' indicates that the humidity is between 40% and 70%.
4. Note that the meter has a tilt stand located on the upper back area. Flip up the tilt stand
from its bottom edge for convenient desktop use.
Display Backlight
1. Press the backlight key (light bulb icon) to activate the display backlight. The backlight
will turn off automatically after approx. 5 seconds to conserve battery life.
2. Note that the backlight feature drains the batteries at a faster rate than normally would
be the case without the backlight turned on.
o
o
Selecting
C/
F units of measure
The temperature unit selector switch is located inside the battery compartment (back of
meter). Open the compartment and slide the switch to the desired position (
LCD display will reflect the current selection.
3
o
o
C or
F). The
Ver. 1,5 July 2003
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