MRC PMG-302 Bedienungsanleitung
Your purchase of this
AC/DC MAGNETIC
METER marks a step
forward for you into the
field of precision
measurement. Although
this AC/DC MAGNETIC
METER is a complex and
delicate instrument,
its durable structure will
allow many years of use
if proper operating
techniques aredeveloped.
Please read the following
instructions carefully
and always keep this
manual within easy
reach.
AC/DC MAGNETIC METER
Model : PMG-302
OPERATION MANUAL
3, Hagavish st. Israel 58817 Tel: 972 35595252, Fax: 972 3 5594529 [email protected]
MRC.5.21
TABLE OF CONTENTS
1. FEATURES.................................................................................................................
1
2. SPECIFICATIONS................................................................................................
2
3. FRONT PANEL DESCRIPTION.............................................................................
4
4. MEASURING PROCEDURE.........................................................................................
5
4-1 DC/AC magnetic field measurement.........................................................................
6
4-2 Data Hold....................................................................................................................................
7
5. ADVANCED SETTING..........................................................................
7
5-1 Select the magnetic field unit to mT or g ...............................................................
7
6. BATTERY REPLACEMENT...............................................................................
7
7. SYSTEM RESET...............................................................................................
8
1. FEATURES
* Wide range, general purpose magnetic measurement.
for industrial, mechanical, material, electrical, laboratory
field usage.
* Unit : G ( Gauss ), mT ( milli Tesla ).
* DC and AC magnetic field measurement
* DC Range : 300.00 mT/3000.0 mT.
AC Range : 150.00 mT/1500.0 mT.
* DC Range : 3000.0 G/30000 G.
AC Range : 1500.0 G/15000 G.
* Resolution : 0.01/0.1 mT, 0.1/1 G.
* N pole/S pole indicator.
* Zero button for DC magnetic function.
*Microprocessor circuit assures maximum possible
accuracy, provides special functions and features.
*Heavy duty & compact housing with hard carrying case,
designed for easy carry out & operation.
*Auto shut off is available to save battery life.
* Data hold reading.
* Microcomputer circuit, high accuracy.
* Power by UM4/AAA ( 1.5 V ) x 4 batteries .
1
2. SPECIFICATIONS
Circuit Custom one-chip of microprocessor LSI
circuit.
Display LCD size : 52 mm x 38 mm
Measurement mT milli Tesla
Unit G Gauss
DC mT Range 1 300.00 mT x 0.01 mT
Measurement Range 2 3,000.0 mT x 0.1 mT
Range, G Range 1 3,000.0 G x 0.1 G
(Auto Range) Range 2 30,000 G x 1 G
AC mT Range 1 150.00 mT x 0.01 mT
Measurement Range 2 1,500.0 mT x 0.1 mT
Range, G Range 1 1,500.0 G x 0.1 G
(Auto Range) Range 2 15,000 G x 1 G
Accuracy DC ± ( 5 % rdg. + 10 digit ) at 23 ± 5 ℃
AC ± ( 5 % rdg. + 20 digit ) at 23 ± 5 ℃
Frequency AC measurement :
Response 50 Hz / 60 Hz
Sensor Hall sensor.
Field Direction Uniaxial.
Data Hold Freeze the display reading.
Display Approx. 1 second.
Sampling Time
Power off Manual off by push button or
Auto shut off to save battery life.
Operating 0 to 50 ℃.
Temperature
Operating Less than 85% R.H.
Humidity
Power Supply 1.5 V battery ( UM4, AAA) x 6 pcs .
( Alkaline or Heavy duty type ).
Power Current Approx. DC 10 mA .
2
Weight Approx. 147 g/0.32 LB.
( include battery )
Dimension Main instrument : all in one Probe :
170 x 40 mm 62 x 4.5 mm
( 6.8 x 1.6 inch ) ( 2.48 x 0.18 inch ).
Accessories
Instruction manual.......................................................
1 PC
Included
* Above specification tests under the environment RF Field Strength less than 3
V/M & frequency less than 30 MHz only.
3
3. FRONT PANEL DESCRIPTION
Fig. 1
3-1 Display 3-5 Probe Sensing Head
3-2 Power Button 3-6 Battery Compartment/Cover
3-3 Hold Button 3-7 Probe Sensor Cover
3-4 Range Button
4
4. MEASURING PROCEDURE
4-1 AC/DC magnetic field measurement
1) Power ON the meter by pressing the " Power Button " ( 3-2, Fig. 1 )
once the meter will be ON , pressing the " Power Button
" ( 3-2, Fig. 1 ) once agin the meter will be OFF .
2) magnetic field measurement Function " DC " or "AC " select
by pressing the " DC / AC Button " ( 3-4, Fig. 1 ) once
measurement function DC change to AC or function AC change to DC.
3) magnetic field measuremen range
DC measuremen range is autorange,whan the meter measuremen velur
> 300.00 mT measuremen range auto change to 3000.0 mT range.
AC measuremen range is autorange,whan the meter measuremen velur
>150.00 mT measuremen range auto change to 1500.0 mT range.
4) unit selection :
How to select the unit ( mT, G), the procedures please
refer to chapter 5-1 " Change the unit ( mT, G ) ", page 7 .
DC magnetic field measurement
* The Display will show " N " or " S " indicator.
* North pole : Display will show " N " indicator
* South pole : Display will show " S " indicator
AC magnetic field measurement
* Display will show " AC " indicator.
* Display will not show " N (S ) indicator.
5
5) Contact and close the testing material to the " probe
head ( 3-5 Fig. 1 )" refer to Fig. 3 , the Display will show the
magnetic field value along with the unit ( mT,G ).
Fig. 3
6) Zero adjustment :
When power ON the meter, due to the environment
interference, the display may show certain values ( not
zero value), it is normal.
* Before the measurement, fix the probe at the exact
position, by pressing and holding the" HOLD Button ( 3-2，Fig. 1 )
“& " DC/AC Button ( 3-4，Fig. 1 ) continuously at least
2 seconds until the display show " 0 " value, in the same
time the Display will show the " 0 " indicator then release
the finger from the button.
6
4-2 Data Hold
During the measurement, press the " Hold Button " ( 3-3,
Fig. 1 ) once will hold the measured value & the LCD will
display a " HOLD " symbol.
* Press the " Hold Button " once again will release the data
hold function.
5. ADVANCED SETTING
5-1 Select the magnetic field. unit to mT or G
1) Prease pressing and hoding the " HOLD Button " ( 3-3, Fig. 1 ) ,
than Power ON the meter into unit is selectet, than Use the
" ▲ Button ( 3-2, Fig.1 )" or " ▼ Button "(3-4, Fig. 1 )
to select the upper Display text to " mT " or " G ".
0 - magnetic field unit is mT
1 - magnetic field unit is G
2) After Display unit is selected to " mT " or " G", press the
" Enter Button " ( 3-3, Fig. 1 ) will save the setting
function with default.
6. BATTERY REPLACEMENT
1) When the left corner of LCD display show " ", it
is necessary to replace the battery. However, in-spec.
measurement may still be made for several hours after
low battery indicator appears before the instrument
become inaccurate.
2) Loose the " Battery Cover " ( 3-6, Fig. 1 )
and remove the battery.
3) Replace with DC 1.5 V battery ( UM4, AAA,
Alkaline/heavy duty ) x 4 PCs, and reinstate the cover.
4) Make sure the battery cover is secured after changing the battery.
7
7. SYSTEM RESET
If the meter happen the troubles such as :
CPU system is hold ( for example, the key button can
not be operated... ).
Then make the system RESET will fix the problem.
The system RESET procedures will be following
method :
Please remove the battery cover ,then reinstate the cover once.
will reset the circuit system.
8
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