Extech Instruments MO265 User Manual

MO265-EU-EN-V1.0-10/10
4
Operation
Electrode Pins
The electrode pins are replaceable. To insert or replace the pins refer to the illustration
and instructions below. Replacement pins are stored in the battery compartment at the
rear of the meter.
a) Remove the protective cap at the top of the meter by pushing it toward the back
of the meter.
b) To remove the pins, loosen the locknut at the base of the electrode pins
c) Install the new pins and tighten the locknuts
d) Replace the protective cap
1. Electrode pins
2. Locking nuts
3. Threaded posts
4. Electrode jacks at top of meter
Pin Measurements
1. Remove the protective cap to expose the electrode pins. The cap snaps off easily if
it is pushed towards the rear of the meter. The cap can be affixed to the side of the
meter using the protective cap holders (6).
2. Press the key to turn the meter ON / OFF.
3. Press the MODE key to select the Wood Moisture Equivalent (%WME) mode of
operation.
4. Carefully push the electrode pins a minimum of 0.07” (2mm) into the material under
test. Note that the pins should be inserted into wood perpendicular to the wood’s
fiber structure. For high moisture readings, it may take several minutes for the
meter reading to stabilize.
5. Take several readings in several locations on the material for the best
representation of the amount of moisture present.
6. Read the measurement values on the LCD digital display and the LED bar graph
7. Replace the protective cap when finished.
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.

Extech Instruments MO265 Specifications

Display

display resolution	0.1%
display type	Backlit LCD digital display and tri-color LED bargraph scale

Measurement Specifications

accuracy pin mode	± (5% rdg + 5 digits)
measurement principle	Electrical resistance (pins), Electromagnetic sensor (pinless)
range pinless	0.0 to 99.9 %Relative
range pins	6.0 to 94.8 %WME

Power

power supply	9V alkaline battery
low battery indication	Battery symbol displayed on LCD

Operating Environment

operating temperature	0 to 50[o]C (32 to 122[o]F)
operating humidity	80% Relative Humidity maximum

Weight and Dimensions

dimensions	203 x 58 x 43mm (8 x 2.3 x 1.7”)
weight	204g. (7.2 oz)