MO53-en-GB_V1.0 7/17
2
Operation
Powering the Meter and Self-Calibration
Long press the power button to switch the meter on/off. The meter beeps and displays ON as it
powers up. If the meter does not switch on, please check the battery. The meter emits audible
tones and performs a self-calibration upon start-up. Keep the measurement sensor at least 8 to 10
cm (3 to 4”) from hands and objects during calibration. The calibration reading must not exceed 0.5.
If so, re-calibrate ensuring that hands or other objects are clear of the sensor. Note: Calibrate the
meter whenever moving from one measurement area to another.
Auto Power OFF
The meter will automatically power OFF if the reading stays 0% for 3 minutes. If the meter detects
readings, other than 0%, it will not automatically power OFF.
Display Hold Lock
Short press the Display Lock button
to freeze the displayed reading. The
icon is visible on
the display when Display Lock is active. Press
again to return to the normal operating mode.
Beeper ON/OFF
The beeper defaults to ON. To switch the beeper OFF, long press the Display Lock/Audible Beeper
button
. When the beeper is active, the audio display icon
will be visible.
Pinless Moisture Measurements
1.
Short press the Material Select button (
) to toggle the Wood
and Building Material
modes. The displayed icons indicate the selected mode.
2.
Position the sensor (located on back of meter, directly behind LCD) firmly on a flat surface so
that it directly touches the measurement area. The measurement surface area should be larger
than the sensor surface area.
3.
Observe the displayed relative readings, view the displayed moisture droplet icon(s) (more
drops indicate higher moisture levels), and listen for the audible beeping (faster beeping
indicates higher moisture; there are eight intensity levels). As discussed in the Measurement
Considerations section, the displayed reading is an average of the moisture measured over the
entire sensor surface area to the maximum penetration depth. The section Relative Moisture
Reading Ranges, below, provides measurement and droplet icon ranges.
Relative Moisture Reading Ranges
WOOD (%)
BUILDING MATERIAL (%)
TOTAL RANGE >
0.1 ~ 99.9
0.1 ~ 56.5
LOW
0.1 ~ 29.9
0.1 ~ 13.9
MEDIUM
30.0 ~ 69.9
14.0 ~ 41.9
HIGH
70.0 ~ 99.9
42.0 ~ 56.5
Maintenance
Battery Replacement
When the battery status icon
appears empty or flashing, replace the battery.
1.
Remove the rear battery cover by pushing the compartment latch (bottom, back of meter).
2.
Replace the 9V battery observing correct polarity.
3.
Replace the battery cover securely.
4.
Dispose of battery responsibly and within applicable legal regulations.
Never dispose of used batteries or rechargeable batteries in household waste.
As consumers, users are legally required to take used batteries to appropriate
collection sites, the retail store where the batteries were purchased, or wherever
batteries are sold.
Disposal: Do not dispose of this instrument in household waste. The user is obligated to take
end-of-life devices to a designated collection point for the disposal of electrical and electronic
equipment.
Care and Cleaning
Store the meter in an environmentally stable, dust-free environment, out of direct sunlight.
Remove the battery from the instrument if the meter is to be stored for long periods or if
the battery power symbol appears empty (or flashing) on the display.
To clean the meter case, wipe with a damp cloth, do not use solvents or abrasives.
Specifications
Display
LCD with multi-function indicators
Measurement Type
Pinless, non-destructive
Measurement Indication Digital relative reading in %, moisture drop icons (1, 2, or 3 droplets),
audible tone (8 intensity levels) indicating low to high moisture readings
Measurement Ranges:
Wood: Low: 0.1% to 29.9%; Medium: 30.0% to 69.9%; High: 70.0 to 99.9%
Building Materials: Low: 0.1% to 13.9%; Medium: 14.0% to 41.9%; High: 42.0 to 56.5%
Measurement depth
Sensor detects to a depth of 20mm (0.8”)
Resolution
0.1%
Accuracy
Relative readings only
Auto Power OFF
After approx. three (3) minutes with a 0% display reading
Power Supply
One (1) 9V battery, battery consumption: < 40mA
Low Battery indication
< 7.5VDC, approximately
Low Battery APO
< 5.5VDC; APO will occur in 20 seconds, approximately
Operating Conditions
5 ~ 45
o
C (41 ~ 113
o
F); 80%RH max.
Storage Conditions
0 ~ 50
o
C (32 ~ 122
o
F); 85%RH max.
Dimensions
170 x 65 x 30mm (6.7 x 2.6 x 1.2")
Weight
120g (4.2 oz.) without battery
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