M70-D Digital Moisture Meter
Instruction Manual
Introduction
M70-D Digital Moisture Meter with the newest ergonomics design, and its special shape, easy
operating and reading angle make it more beautiful. M70-D is a moisture meter applied in every kind of
industry; it can be used to measure the moisture (%) in the process from raw material to finished products,
and the measured material including wood, bamboo, construction material, paper…etc. And it also can be
used to measure the relative moisture of other materials like food, leather, powder, cloth, ceramics,
cement…etc.
1. Features
□ Digital LCD display with luminescence back-light.
□ Aesthetics protection cap for safe carrying and operating
□ Harden and gloss treatment on display-window for abrasion-proof and long-term clean
□ 5.5% to 99.9% moisture range with DC 0~1V output
□ Stores up to 99 readings, Max./Min average values recalled
□ Auto temperature compensation and internal calibration
□ Auto power off and low battery warning(with audible)
□ Ergonomics design, easy operating, comfortable and durable.
□ CE and RoHS approved
2. Instrument Description
○
1
Protection Cap
○2 LCD display（with Back-light）
○3 key
○4 key
○5 key（power）
○6 Signal output
○7 CAL calibration key
○8 key
○9 key
○10 External probe connecter
○11 Needle（Electrode for measuring）
○12 Instrument model no. and S/N. no.
○13 Battery cover
※ Please read the content below for the detail operation and function.
3. Key Description
Key
Function
Description
LCD display
Power key
●Press one time for power on or off (auto power off)
●When power off, hold then press to turn on and
process manual operating model.
A. (HOLD) Hold value, max./min. and
average value. €
As below： key operating and
Function description.
HOLD → MAX →
MIN→AVG → REC
B. Enter memory reading
REC
C. Manual power off function
+ ：as above
M
A. Process instrument calibration
function
+ ：When power off, press
and hold, then press
to turn on and enter
calibration function.
※Unavailable to auto power off while
calibration function is processing.
CAL
B. Process reading storage function
Hold the present value and select memory
location, then press this key to process
storage.
HOLD
C. Process deletion all memory
function
Hold this key over 1.5 seconds to delete all
memory data.
Display memory
volume「00」
A. Turn on LCD back-light function
Hold this key over 1.5 seconds to turn on
back-light
B. Memory location back search
function
Press the key one time to move back a
memory location; hold this key to further
search location speedily
Display memory
location「XX」
A. Tree kinds or measured material
groups selection function
Press this key to select 1~9 tree kinds
groups(please refer to the calibration table)or
built material coefficient reference code
Display group code
「X」
B. Memory location front search
function
Press this key one time to move front a
memory location; hold this key to further
search location speedily
Display memory
location「XX」
Remark： key operation and function description(circle operating) Display symbol
Press Hold reading/memory reading ...........................HOLD
Read the maximum value in memory…………………………………….…….MAX
Read the minimum value in memory…..………………………………………..MIN
Read the average value in memory……….……………………………………..AVG
Read the value of every memory location 0 ……………………….REC
including tree kinds(groups)code
Recover normal measurement function
4. Operating Instructions
A. Preparation
A-1 Please check all accessories of the instrument before using：
◇ Main instrument-----------------------------------------NO.M70-D x 1 pc
◇ Protection cap (on the instrument)-- -----------------NO.713M x 1 pc
◇ External needle type probe-----------------------------NO.7021 x 1 pc
◇ Replacement standard needle -------------------------NO.701P/S x 2 pc
◇ Replacement needle screw-----------------------------NO.702B x 2 pc
◇ Soft portable leather case-------------------------------NO.765Cx 1 pc
◇ 9V battery (option)-------------------------------------NO.B09V x 1pc
◇ Instruction manual (including wood calibration tables)-----------------------------1 ea
A-2 Set battery：
Press the round mark on the instrument battery cap and push the cap below and set the batteries
by⊕ polarity and push back the battery cap.
A-3 Take away the protection cap front the instrument to show the needle and inspect the shape of
needle and its firmness.
A-4 Power on and power model：
Auto power off model→ press to turn on the instrument, if there is no any operation within
1 minute, it will turn off automatically.
Manual power off model→ When power off, hold and press to turn on and the
instrument will process manual power off model, except for pressing and
power out off, the instrument will not turn off automatically.
※Whatever auto/manual power off model, just press for power off.
B. Measurement method
B-1 Finish the power on steps as above, please check the battery power indicator to sure the power is
enough and it is available to process moisture measurement and every function operating.
B-2 Use the front two needles to stab into the measured material to read the moisture of material on
the display.
B-3 If the condition is difficult to operate or needs long needle to measure deeply, please use the
extension probe (No.7021) to connect the right side outlet of the instrument for measuring.
※The reading value of same object measured by extension probe and needle is equal
C. Record function operating－use as the operation below:
C-1 Reading value hold function（HOLD）
When get reading value at B-2 step, press one time to hold the value on the display
C-2 Maximum reading value function（MAX）
Press the key twice in the normal model to read the maximum value and the memory location
C-3 Minimum reading value function（MIN）
Press the key thrice in the normal model to read the minimum value and the memory location
C-4 Average reading value function（AVG）
Press the key four times to read the average value and the memory records
C-5 Memory reading function（REC）
Press the key five times in the normal model to enter the memory reading function for recalling
the memory location and data records including tree kinds and groups data.
※Press again, and it will return to the normal model
C-6 Reading records function
When the measured value is hold, it is able to use to select the required record
no. location, and then press to record the measured value in the no. location you
selected
※When the selected memory location has been used, the new data will replace the original
data. This instrument has 99 records volume and 8 groups display function
C-7 Records deletion function
In the measured model, hold and await the memory volume display「00」to delete the
storage data
※The data in the memory only can be deleted by (C-7) step, and it will not disappear because
of power off or power out off
D. Tree kinds (groups) selection
In the normal model, it is able to use to select tree kinds (or groups) for getting the
more accurate moisture value. The selected tree kinds (or groups) symbol will display on the
LCD below
※◆This instrument has 8 groups of tree kinds(groups), available to press for circle selection
◆Every time turn on, tree kinds(groups) will be set at NO.1. The tree kind(group) before
turning off will not be recorded
E. LCD Back-light function
On：In the normal model, press over 1.5 seconds to turn on back-light
Off：When back-light is on, press over 1.5 seconds to turn off back-light
※ If there is no any operation with in 30 seconds, back-light will be turned off automatically
when back-light is on
※ Back-light function will deplete power speedily, if it is not necessary, please don’t use
back-light as possible
F. Calibration and adjustment function
This instrument has been adjusted completely before ex-factory. If the condition is special and
needs to adjust the instrument, please operate the instrument as the steps below
F-1. When the power is off, hold firstly, and then press to turn on,「CAL」will appear
on the display left below and the instrument will make a voice “Be” every 4 seconds, it
represents the instrument is in the adjustment model.
F-2. Please use the small type screw driver to do fine-tuning on “CAL” at the right side of the
instrument to display the value and get the calibration value.
F-3. When calibration is finished, please turn off the power to store data.
◆Before calibrating, please check if the power is enough and then process the calibration
◆If you don’t know if the instrument needs to be adjusted, please contact our technical
department firstly and don’t change any original setting.
◆The built-in calibration value of this instrument is 18.4％±1％。
G. Power inspection function
The display left above has a power indicator symbol, if the power is not enough, the symbol will
flash and make a voice “Be” warning by fits and starts. Please replace the new batteries immediately
and then operate the instrument
5. Signal Output
This instrument has synchronal output function, and it can be used to connect the related
peripheral device like a recorder, controller, PC Data-Logger…..etc.
※output signal：DC 0 ~ 1V，10mV∕％
6. Care and Maintenance
1. This instrument has the accurate temperature compensation function, but, if it is used in the place
with high temperature or high humidity, it will produce deference or error message.
2. The sensor (needles) is the electric conduction elements of connecting the measured material. In
order to avoid damage to the instrument and electric shock, when the measured material has
voltage or static electricity, please clear the voltage or cut off the power and then go to measure.
3. Please use the two needles to pierce into the material at the same time and keep them for a while
to get the more accurate value.
4. For the hard material or the material need deep inspection, please change to use the special needle
(option)
5. To avoid the incorrect reading, if the low symbol appears, please replace the battery before using
6. The sensor (needles) is the main element, if the sensor has damage or other problems, please
replace the new one to use continually.
7. When not in use, please remove the battery from the instrument, put the main instrument and all
accessories into the protection case and keep the kit in a dry, dust-free environment out of direct
sunlight.
8. Please contact the local agent or our customer service department for any question or product
repair.
M70-D Specification:
Calibration Tables (For Wood)
01
02
03
04
05
06
07
08
Pacific maple
Japan china fir
Europe
fine-grained
wood
Britain elm tree
Quassia
Bodhi tree
Christmas tree
Europe birch
The torrid zone
balsa wood
Japan elm
Camphor tree
White elm tree
Hickory tree
Persimmon
tree
Pomegranate
tree
India
China fir
Yellow birch
Douglas fir wood
West America
redwood
New Zealand
pine wood
West American
fallen leaf pine
Amboyna
Rubber tree
Africa redwood
mahogany
padauk
Yellow poplar
Southern ocean
rubber wood
Chestnut tree
Padauk
Alive tree
Europe cherry
wood
Africa cypress
American
redwood
Japan cypress
18~28mc
Fig tree
Japan cypress
8~18mc
American red
rubber wood
Africa
alive tree
Green hard
hardwood
Teak tree
Japan spruce
8~18mc
Oak
Southern ocean
pine
West American
hemlock spruce
Africa walnut tree
Scotland pine
Japan pine
Philippine
mahogany
Yellow pine
Fallen leaf pine
Europe
redwood
Malaysia oak
American
walnut tree
American pine
tree
Korean pine
Japan spruce
18~28mc
Europe spruce
Europe walnut
tree
Yew
Measuring Range
5.5 ~ 99.9% H2O %WME
Resolution
0.1 %
Accuracy (at 25℃)
± 1% Wood scale
Display
Digital dual LCD display,With multi.-function indicator.
Sampling Rate
0.3 seconds
Wood group scales
select from 9 wood groups
Data memory
99 readings
Signal output
Analog DC 0 ~ 1V (10 mV / 1%), load > 500Ω
Calibration
Built-in calibration adjustment.
Functions
※Back-Light luminescence EL
※Data-Hold , Records Max./ Min. and Average values.
※Manual / automatic power off.
※Automatic temperature compensation.
※Battery symbol and low power warning.(with audible)
※Usable and changeable of extension probe.
Power
One 9 V (6F22) Battery, about 250 hours for continuing use(none back light)
Operating
- 20° ~ + 55℃, <90%RH, non-condensing
Dimensions
153 x 56 x 32mm. (6.0〞x 2.2〞x 1.26〞)
Weight
155g. ( 5.5ons) Including battery
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