MRC PMG-302 Manual de usuario

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.................................................................................................................

2. SPECIFICATIONS................................................................................................

3. FRONT PANEL DESCRIPTION.............................................................................

4. MEASURING PROCEDURE.........................................................................................

4-1 DC/AC magnetic field measurement.........................................................................

4-2 Data Hold....................................................................................................................................

5. ADVANCED SETTING..........................................................................

5-1 Select the magnetic field unit to mT or g ...............................................................

6. BATTERY REPLACEMENT...............................................................................

7. SYSTEM RESET...............................................................................................

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 .

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 .

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. 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. 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) 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.

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. 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.

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