General Tools MM70D User Manual [en, es, fr]
MM70D
USER’S MANUAL
Precision Digital Moisture Meter is a moisture meter that can be used
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. It
can also be used to measure the relative moisture of other materials
like food, leather, powder, cloth, ceramics, cement and more.
FEATURES:
• Digital LCD display with luminescent back-light
• Aesthetics protection cap for safe carrying and operating
• Abrasion-proof, hardened gloss treatment on display-window
for long-term protection
• 5.5% to 99.9% moisture range with DC 0~1V output
• Stores up to 99 readings, MIN/MAX/Average values recalled
• Auto temperature compensation and internal calibration
• Auto power off and low battery warning (with audible)
• Ergonomic design, easy operation, comfortable and durable
• CE and RoHS approved
SPECIFICATIONS:
• Measuring Range: 5.5 to 99.9% H2O %WME
• Resolution: 0.1%
• Operating Range: - 4° to 122°F, <90%RH, non-condensing
• Accuracy (at 25°C): ±1% Wood scale
• Display: Digital dual LCD display with multi-function indicator
• Sampling Rate: 0.3 seconds
• Wood Group Scales: select from 8 wood species groups
• Data Memory: 99 readings
• Signal Output: Analog DC 0 ~ 1V (10 mV / 1%), load > 500⍀
• Calibration: Built-in calibration adjustment
• Power Source: 1 “9V” battery
• Battery Life: About 250 hours of continuous use (no back-light)
• Dimensions: 6.0" x 2.2" x 1.26" (153 x 56 x 32 mm)
• Weight: 5.5 oz (155 g) (including battery)
INTRODUCTION:
Precision Digital
Moisture Meter
with RS232 Output
FUNCTIONS:
• Back-Light luminescence EL
• Automatic temperature compensation
• Manual/automatic power off
• Data Hold, records MIN/MAX and Average values
• Battery symbol and low power warning
• Interchangeable extension probes
PLEASE READ THE CONTENT BELOW FOR THE DETAIL OPERATION AND FUNCTION.
KEY DESCRIPTION:
KEY FUNCTION DESCRIPTION LCD DISPLAY
POWER key Press one time for power “ON” or “OFF”
When power is off, hold then press to
turn on and process manual power of mode
A. Hold status reading,
MIN/MAX 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 + :When power is off, press and hold, CAL
calibration function then press to turn on and enter calibration function.
B. Process reading storage Hold the present value and select memory location, HOLD
function then press this key to process storage
C. Process deletion all Hold this key over 1.5 seconds to delete all memory data Display memory volume
memory function
Unavailable to auto power off while calibration function
is processing.
A. Turn on LCD back-light Hold this key over 1.5 seconds to turn on back-light
function
B. Memory location back Press this key one time to move backward a memory location; Display memory location
search function hold this key to further search location speedily
A. Wood species or measured Press this key to select 1~ 8 wood species groups Display group code
material groups selection function (please refer to the calibration table) or built
material coefficient reference code
B. Memory location front Press this key one time to move forward a memory Display memory location
search function location; hold this key to further search location speedily
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . REC
including tree kinds (groups) code
Return to normal measurement function
UNIT DIAGRAM/LCD & CONTROL PANEL:
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
OPERATING INSTRUCTIONS:
PREPARATION
1.
PLEASE CHECK ALL ACCESSORIES OF THE INSTRUMENT BEFORE USING:
Main instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 pc
Protection cap (on the instrument) . . . . . . . . . . . . . . . . . . 1 pc
External needle type probe . . . . . . . . . . . . . . . . . . . . . . . . 1 pc
Replacement standard needle . . . . . . . . . . . . . . . . . . . . . . 2 pc
Replacement needle screw . . . . . . . . . . . . . . . . . . . . . . . . 2 pc
Soft portable pouch case . . . . . . . . . . . . . . . . . . . . . . . . . 1 pc
“9V” battery (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 pc
Instruction manual (including wood calibration tables)
2. Installing the 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.
3.
Take away the protection cap from the instrument to show the
needle and inspect the shape of needle and its firmness.
4.
Power on and power mode:
Auto power off mode:
if there is not any operation within 2 minutes, it will turn off
automatically.
Manual power off mode:
press to turn on and the instrument will process manual power
off mode. Except for pressing the key, whether the power has
exhausted, the instrument will not turn off automatically.
press to turn on the instrument,
When power is off, hold and
Whatever auto / manual power off mode, just press for power off.
MEASUREMENT METHOD
1. Finish the power on steps as above, please check the battery
power indicator to ensure the power is enough and it is available
to process moisture measurement and every function operating.
2. Use the front two needles to contact or stab into the measured
material to read the moisture of material on the display.
3. If the condition is difficult to operate or needs long needles to
measure deeply, please use the extension probes to connect
the right side outlet of the instrument for measuring.
The reading value of same object measured by extension probes
and needles of meter is equal.
RECORD FUNCTION OPERATING-USE AS THE
OPERATION BELOW:
1. Reading value hold function (
When getting a reading value from item 2. (Measurement Method
above), press one time to hold the value on the display
2. Maximum reading value function (
Press the key two times in the normal mode to read the
maximum value and the memory location
3. Minimum reading value function (
Press the key three times in the normal mode to read the
minimum value and the memory location
4. Average reading value function (
Press the key four times to read the average value and the
memory records
5. Memory recalled function (
Press the key five times in the normal mode 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 mode.
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.
7. Records deletion function
In the measured mode, hold and await the memory
volume display 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 replace the battery.
REC
HOLD
)
AVG
)
MAX
MIN
)
)
)
WOOD SPECIES (GROUPS) SELECTION
In the normal mode, it is able to use to select wood species
(group) for getting the more accurate moisture value. The selected
wood species (groups) symbol will display on the LCD below.
This instrument has 8 groups of wood species (groups), available to
press for circle selection.
Every time turn on, wood species (groups) will be set at NO. 1. T
he selected number before turning off will not be recorded.
LCD BACK-LIGHT FUNCTION
On: In the normal mode, press and hold key over
1.5 seconds to turn on back-light.
Off: When back-light is on, press and hold key over
1.5 seconds to turn off back-light.
If there is not any operation within 30 seconds, back-light will be
turn off automatically.
Back-light function will deplete power speedily. If it is not
necessary, please use back-light as little as possible.
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 following the steps below:
1. When the power is off, keep the key pressed and press
to turn on, CAL will appear on the display left below and the
instrument will “beep” every 4 seconds, it represents the
instrument is in the adjustment mode.
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.
3. When calibration is finished, please turn off the power to store
data.
Before adjusting, please check if the power is enough and then
process the calibration.
When adjustment, please make sure the needles are suspended in
midair and with no contact on any object.
The built-in calibration value of this instrument is 18.4%±1%.
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 “beep” warning by fits and
starts. Please replace the new batteries immediately and then operate
the instrument.
SIGNAL OUTPUT
This instrument has DC 0~1V (10mV ) synchronal output function, and
it can be used to connect the related peripheral device like a recorder,
controller, data-logger…..etc.
CARE AND MAINTENANCE
1. This instrument has the accurate temperature compensation
function, but if it is used in a place with high temperature or high
humidity, it will produce deference or an error message.
2. The sensor (needles) is the electric conduction element 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 a more accurate
value.
4. For harder material or the material needing deep inspection,
please change to use the special needle (optional).
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(s) or product repair.
SPECIFICATIONS
• Measuring Range: 5.5 to 99.9% H2O %WME
• Resolution: 0.1%
• Operating Range: - 4° to 122°F, <90%RH, non-condensing
• Accuracy (at 25°C): ±1% Wood scale
• Display: Digital dual LCD display with multi-function indicator
• Sampling Rate: 0.3 seconds
• Wood Group Scales: select from 8 wood species groups
• Data Memory: 99 readings
• Signal Output: Analog DC 0 ~ 1V (10 mV / 1%), load > 500⍀
• Calibration: Built-in calibration adjustment
• Power Source: 1 “9V” battery
• Battery Life: About 250 hours of continuous use (no back-light)
• Dimensions: 6.0" x 2.2" x 1.26" (153 x 56 x 32 mm)
• Weight: 5.5 oz (155 g) (including battery)
• Functions:
Back-Light luminescence EL
Automatic temperature compensation
Manual / automatic power off
Data-Hold, Records Min/Max and Average values
Battery symbol and low power warning
Usable and changeable of extension probe
WOOD SPECIES CALIBRATION TABLES
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 Japan elm Camphor tree White elm tree Hickory tree Persimmon tree Pomegranate tree India
balsa wood China fir
Yellow birch Douglas fir West America New Zealand West American Amboyna Rubber tree Africa redwood
wood redwood pine wood fallen leaf pine mahogany padauk
Yellow poplar Southern ocean Chestnut tree Padauk Alive tree Europe cherry wood
rubber wood
Africa cypress American redwood Japan cypress Fig tree Japan cypress
18~28mc 8~18mc
American red Africa alive tree Green hard hardwood Teak tree Japan spruce
rubber wood 8~18mc
Oak Southern West American Africa walnut tree
ocean pine hemlock spruce
Scotland pine Japan pine Philippine mahogany
Yellow pine Fallen leaf pine
Europe Malaysia
redwood oak
American American
walnut tree pine tree
Korean pine
Japan spruce
18~28mc
Europe spruce
Europe
walnut tree
Yew
Setting No. of wood type
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