MO210 Datasheet, PDF (3/4 Pages) Extech Instruments Corporation. – Moisture Meter

Operation
CAUTION: The electrode measurement pins are extremely sharp. Use
care when handling this instrument. Cover the pins with the protective cap
when the instrument is not in use.
1. Remove the protective cap to expose the electrode pins.
2. The meter automatically switches ON when the cap is removed.
3. The meter automatically shuts OFF when the cap is replaced.
4. To conserve battery life, the meter automatically shuts off after 15 minutes when
the cap is left off. To revive the meter after an Auto Power OFF, simply press the
yellow cut-off switch momentarily.
5. Slide material selection switch to read wood moisture or building moisure.
6. Carefully push the electrode pins as far as possible into the material under test.
Note that the pins should be inserted into wood perpendicular to the wood’s fiber
structure.
7. Take several readings in several locations on the material for the best
representation of the amount of moisture present.
8. Read the measurement values on the display.
9. Replace the protective cap when finished.
Reading the Display
1. The LCD display has two scales
2. The wood scale indicates wood moisture from
6 to 44%.
3. The building materials scale (plaster, brick,
concrete, mortar, etc.) indicates moisture
content from 0.2 to 2.0%.
4. A continuous line indicates an even number.
A dotted line indicates on odd number.
5. The battery icon appears when the batteries
are weak and require replacement.
Auto Power OFF
With the protective cap removed, the meter will
turn off after 15 minutes to conserve battery life.
Press the yellow cutoff switch momentarily to
restart the meter. Always secure the protective cap
when the instrument is not in use.
Wood Scale
Building Material
Scale
Instrument Measurement Verification check
1. With the meter wood moisture position, touch the electrode test pins to the two test
points 1 and 2 at the top of the protective cap labeled ‘T’.
2. With the unit on and the electrode pins touching the ‘T’ test points, the meter should
read 27% ±2%. If not, the meter may require repair.
Battery Check
T ¹
2
1. With the meter wood moisture position, touch the electrode
3
B⁴
test pins to the two test points 3 and 4 at the top of the
protective cap labeled ‘B’ (see diagram).
2. With the unit on and the electrode pins touching the ‘B’ test points, the meter should
read > 44% on the wood moisture scale. If not, replace the batteries.
3
Model MO210 Version 1.0 Aug 2007