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Moisture Meter Calibration

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This allows you to constantly check the calibration yourself when on site. From the factory the verification block comes with a factory certifcate to ensure that the meter is within factory verification specification.


One simply places their moisture meter on the verification block and it will verify the calibration. If the meter is out of verification then you will need to send it away to be recalibrated.



How To Calibrate A Moisture Meter


You need to select a standard against which you will measure your readings. Depending upon the species of wood you may have different standards, but for this article we will say 20% as the standard for calibration.

Some meters will default to a preset percentage when they are turned on so you will have to change that point.

Next run a calibration test on your meter. There may well be a button or two on your meter which must be pressed to do this in some particular sequence. If not you can use a valibration block. But always check your user manual regarding calibration.

Switch your meter off and if you have been getting strange results give the probes or sensor plate a clean. Turn the meter back on and confirm that it has the new set point and then repeat the calibration test one more time.


Excessive humidity will affect calibration.

Foreign debris in a material can give false results.

The meter standard can be disturbed after multiple usage.

A frequently used meter should be recalibrated every 2 weeks or so.


Moisture Meter Calibration And Repair


Modern day moisture meters are extremely reliable and require very little maintenance beyond replacing batteries and cleaning. Inside them the circuit design tends to be very careful with the use of CMOS technology.

Also stabilised voltage rails and crystal controlled oscillators mean that recalibration is very rarely required.

Though it is recommended that you do test your meters calibration on a regular occurence just to make sure. Better safe than sorry as they say.

One piece of maintenance that is required will be to the soft rubber electrodes because after much use they will become worn and shiny. When these electrodes are worn and shiny the instrument becomes less sensitive to moisture.

Scanning heads can also become worn after a lot of use. Most components withing the moisture meter can be replaced quickly and not at great expense.



Wood moisture meter

Concrete moisture meter

Moisture meters provide their user with a way of obtaining easy, convenient and precise ways to measure moisture content in materials. Such now is the technology involved in the moisture meter these days, many applications are measured more accurately and the moisture level contents and managed on a better level.

The moisture meter is calibrated to wood and wood products and the more advanced models can also indicate temperature and relative humidity. In fact it is fair to say that moisture content control has never been as accessible as it is today.

When working with wood the correct moisture content level in the wood is an integral part of any successful project. The wood can be tested by running a meter along the wood surface with a pinless meter, or by invading the wood with a pin meter. Both methods will give you instant results concerning the moisture content in the wood you want to work with. The moisture meter will be calibrated to wood and depending upon which wood species you are testing, the density setting on the moisture meter has to be correctly set by the user.

All sounds well and good. However the problems begin to occur when you start getting weird and whacky results with your meter. These results appear when the meter is not functioning correctly or when the unit is not calibrated properly. It is essential for a meter to be within calibration and to be verified periodically that it is so. The majority of moisture meters are sold as factory calibrated units and some are even self calibratinug instruments. However it is not an unusual occurrence for a meter to fall out of sync.

To remedy a moisture meter that is out of sync the calibration has to be reset. In alot of cases this means returning your meter back to the manufacture where they can recalibrate your unit in their factory. This can be time consuming and very inconvenient for you if you do not have a back up meter to use in the meantime.

Wagner sell many accessories for the moisture meter and one particular accessory is the calibration verification block.


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Moisture Meter Guide



Wagner Moisture Meters

Wagner MMC220

Wagner MMI1100

Wagner MMC210

Wagner MMC205

Wagner L606

Wagner L607

Wagner C575

Wagner BI2200

Delmhorst Moisture Meter

Delmhorst BD-10 Pin

Delmhorst J-2000

Delmhorst J-Lite

Delmhorst P-2000

Delmhorst BD-2100

Delmhorst J-4

Delmhorst Accuscan

Delmhorst KS-D1

Delmhorst Dual Function

Tramex Moisture Meters

Tramex Encounter Plus

Tramex Compact Wood

Tramex Concrete Encounter

Tramex Skipper Plus

Tramex Roof And Wall

General Tools Moisture Meter

General Tools MMD4E Digital

General Tools MM1E Pin LED

General Tools MMD950

General Tools MMD5NP Pinless LCD  

General Tools MMH800 4 In 1

General Tools GLMM200 Soil

General Tools MMD7003  

General Tools MMD8P Multi

General Tools MMD7NP LCD

General Tools MM700D Precision

Sonin Moisture Meters

Sonin 50218 Digital

Sonin 50270 Digital

Sonin 50210 Test Tool

Sonin 50211 Test

Extech Moisture Meter

Extech MO280 Pinless

Extech MO230 Pocket

Extech MO257 Pinless

Extech MO260 Combi

Extech MO260 Pin/Pinless

Extech MO270 Wireless

Extech MO210 Pocket

Extech MO210 Pocket

Extech MO220 Wood

Extech 407777 Heavy Duty

Lignomat Moisture Meter

Lignomat Mini Ligno E/D

Lignomat Mini Ligno S/D

Lignomat LED Wood

Lignomat Mini Ligno E

Lignomat Mini Ligno DX/C

Lignomat Scanner D

Lignomat Ligno Duotec

Lignomat Mini Ligno S

Protimeter Moisture Meter

Protimeter Mini

Protimeter Aquant

Protimeter Surveymaster

Protimeter Hygromaster

Protimeter Psyclone

Protimeter Timbermaster

Protimeter MMS

Protimeter MMS2













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