Lutron Electronics MG-3OO2 User manual

G ( Gauss) mT ( milli Tesla ) USB/R5232
AC IDC
MAGNETIC METER
Model : MG-3OO2
Your purchase of this
AC/DC MAGNETIC METER
marks a step forward for
you into the field of
precision measurement.
Although this METER is a
complex and delicate
instrument, its durable
structure will allow many
years of use if proper
operating techniques are
developed. Please read the
following instru ctions
carefully and always keep
this manual within easy
reach"
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Wide range, general purpose magnetic measurement.
for industrial, mechanical, material, electrical, laboratory
field usage.
Unit : G ( Gauss ), mT ( milliTesla ).
DC and AC magnetic field measurement
DC Range : 300.00 mT/3000.0 mT.
AC Range : 150.00 mT/1500.0 mT.
Resolution : 0.0U0.1 mT, 0.1/1 G"
N pole/S pole indicator,
Use Hall sensor with automatic Temp. compensation.
Zero button for DC magnetic function.
Separate probe, easy operation and convenient
for remote measurement.
Data hold function for freezing the desired value
on display.
Records Maximum and Minimum readings with Recall"
RS232/USB com puter interface,
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.
Power supply from batteries or DC 9V adapter in.

Circuit Custom one-chip of microprocessor LSI
circuit.
Display LCD size : 52 mm x 38 mm
dual function LCD disPlaY.
Measurement
Unit mT milli Tesla
GSauss
Measurement
Range, DC mT Ranqe 1300.00 mT x 0.01 mT
Ranob 23.000.0 mT x 0.1 mT
GRanqe 13.000.0Gx0.1 G
Ranqe 230.000Gx1G
Measurement
Range, AC mT Ranoe 1150.00 mT x 0.01 mT
Ranqe 21,500.0 mT x 0.1 mT
GRanqe 11.500.0Gx0.1 G
Ranqe 215,000Gx1G
Accuracy DC I ( 5 o/o rdq. + 10 diqit )
AC * ( 5 o/o rdo. + 20 diqit )
Frequency
Resoonse AC measurement :
50 Hz I 60Hz
Sensor Hall sensor.
remp.
Compensation
for hall sensor
Probe head build the TemP. sensor
for using the ATC ( automatic TemP.
compensation ).
Field Direction Uniaxial.
Data Hold Freeze the displav readinq.
Memory Recall Maximum & Minimum value.
Display
Samplinq Time Approx. 1 second.
Power off Manual off by push button or
Auto shut off to save battery life.
Operating
Temoerature 0to50t.
Operating
Humiditv iLess than B5o/o R.H.
Data Output RS 232IUSB PC serial inteface.
* Connect the optional R5232 cable
UPCB-0Z willget the R5232 plug.
* Conned the optional USB cable
USB-01 willset the USB plus.
Power Supply l06P DC 9V battery
I Alkaline or Heaw duW Wpe ).
DC 9V adapter input"
* AC/DC power adapter is optional.
Power Current Aporox. DC 20.5 mA .
Weight Approx. 270 g/0.60 LB.
I include battery & probe )
Dimension Main instrument :
195x68x30mm
( 7.6 x 2.6 x L.2 inch )
Probe :
198 x25x19mm
( 7.8 x 1.0 x 0.7 inch ).
Accessories
Included lnstruction manual..... ..1 PC
Vlagnetic Probe.....,,. ....1 PC
3arryinq case, CA-06.................... 1 PC
Optional
Accessories R5232 cable, UPCB-02 JSB cable, USB-01
Data Acouisition software. SW-U801-WIN
* Above specification tests under the environment RF Field Strength less than 3
V/M &. frequency lex than 30 MHz only.

[.,,
4-7 AC/DC magnetic freld measurement
L)Power ON the meter by pressing the " Power
Button " (3-2, Fig. I ) once.
2)Pressthe " Mode Button " ( 3-6, Fig. 1) once,
the Display will show the following screen in sequence :
mT unit Under G unit
Note:
al screen is ready for DC 0.1 mT resolution measurement.
bl screen is ready for DC 0.01 mT resolution measurement.
cl. screen is ready for AC 0.1 mT resolution measurement"
dl screen is ready for AC 0.01 resolution measurement.
a2 screen is ready for DC I G resolution measurement.
b2 screen is ready for DC 0.1 G resolution measurement.
c2 screen is ready for AC 1 G resolution measurement.
d2 screen is ready for AC 0..1 G resolution measurement"
5
3-16
3-15
3-12
3-13
3-14
3-{8
3-',|.7
Fig. 1
3-i. Display
3-2 Power Button
3-3 Hold Button
3-4 REC Button ( Enter Button )
3-5 ZERO Button
3-6 Mode Button ( DC, AC Button ), Sm
3-7 Input socket
3-8 Probe Handle
3-9 Probe Sensing Head
3-10 Probe Plug
3-11 Probe Head Cover
3-12 RS-232 Output Terminal
3-13 Reset button....
3-14 DC 9V Power Adapter Input Socket
3-1.5 Stand
3-16 Tripod Fix Nut
3-17 Battery Compaftment/Cover
3-18 Battery Cover Screw
a2a1
Button
b2
cZ
d2
b1
c1
d1

3) Display indicator
DC maqnetic field measurement
x The Display will show " N " or " S " indicator.
* North pole : Display will show " N " indicator
* South pole : Display will show " S " indicator
field measurement
* Display will show " AC " indicator.
* Display will not show " N (S ) indicator.
4) unit selection :
How to select the unit ( mG, uT ), the procedures please
refer to chapter 5-1 " Change the unit ( mT, G ) ", page
S)Contact and close the testing material to the probe
head ( refer to Fig. 3 ) , the Display will show the
magnetic field value along with the unit ( mG, uT ).
x
I
I
)
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, press the " ZERO Button " ( 3-5, Fig. 1 )
continuously at least two 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.
* Press the " ZERO Button " ( 3-5, Fig. 1 )
continuously at least two seconds again, the " O "
indicator will be disappeared and the Display will
return to the " no zero " value ( show the
environment magnetic field value ).
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.
4-3 Data Record ( Max., Min, reading )
* The data record function records the maximum and
minimum readings. Press the " REC Button " ( 3-4, Fig.
L ) once to staft the Data Record function and there
will be a " REC " symbol on the display.
* With the " REC " symbol on the display :
a)Pressthe " REC Button " ( 3-4, Fig. 1) once, the "
REC. MAX " symbol along with the maximum value
will appear on the display.
If intend to delete the maximum value, just press
the " Hold Button " ( 3-3, Fig. 1 ) once, then the
display will show the " REC. " symbol only & execute
the memory function continuously.
HALL SENSOR _T T_ TEMP COMPENSATION
( Magnetic senshg area ) \ ?// UNIT
Contact side ( measuring face )

b)Press the " REC Button " (3-4, Fig. 1 ) again, the
" REC. MIN " symbol along with the minimum value
will appear on the display.
If intend to delete the minimum value, just press
the " Hold Button " ( 3-3, Fig. 1 ) once, then
the display will show the " REC. " symbol only &
execute the memory function continuously.
c) To exit the memory record function, just press the
" REC Button " for 2 seconds at least. The display will
reveft to the current reading,
Remark:
When make the DC magnetic field measurement
and execute the " RECORD o fundion, it can not
change from the " North pole' to'South pole *
or from the " South pole " to " North pole *
during the measuremenL ft can make the
measurement under the same pole ( S pole or N
pale ) only, otherwise the Max,, Min, value will
be no sense"
Press the " SET Button " ( 3-6, Fig. 1 ) continuously at
least two seconds will enter the " Advanced Setting " mode,
then press the " SET Button " ( 3-6, Fig. 1 ) once a while
in sequence to select the three function, the lower Display
will show :
PoFF..... Auto power OFF management
Unit...... Select the measurement unit to mT or G
CLr,....., For the further calibration usuage, not available
for the end user
5-1, Auto power OFF management
When the lower display show " PoFF "
l)Usethe " REC Button " ( 3-4, Fig. 1) to enter
will enter into the setting of " Auto power off
management ".
Press the " Mode Button " ( 3-5, Fig. 1 ) once in sequence
to select upper value to " yES " or " no ""
yES - Auto Power Off management will enable.
no - Auto Power Off management will disable"
2)After select the desiring function ( YES or no ), press the
' REC Button " (3-4, Fig. t ) to save the function with
default"
5-2 Select the measurement unit to mT or G
the lower display show " unit "
L)Use the " REC Button " (3-4, Fig. t ) to enter
will enter into the setting of " Select the measurement
unit of mT or G "
Press the " Mode Button " ( 3-5, Fig. I ) once in sequence
( 3-6, Fig. 1 ) to select the Display text to
t'tttor"gt'.
t - milli Tesla ( mT )
G-Gauss(G)
2)After Display unit is selected to " mT " or " G ", press the
" REC Button " (3-4, Fig. 1 ) will save the setting
function with default.
9

the lower displav show " CLr "
This setting just for the further calibration usage, not
available for the end user.'
The 16 digits data stream will be displayed in the
following format:
5-3 For the fitfther alibration usage, not available
for the user
The instrument has RS232 PC serial interface via a 3.5
mm terminal ( 3-12, Fig. 1 ). The data output is a 16
digit stream which can be utilized for user's specific
application. A RS232 lead with the following connection
will be required to link the instrument with the pC serial port.
Center Pin......................... Pin 4
Ground/shie|d,........... Pin 2---1
n z.zK
I I resister
t-
Pin 5r l)When the left corner of LCD display show " ffi', 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 Screw " ( 3-18, Fig. 1 ), slide
the " Battery Cover " (3-L7, Fig. 1 ) away from the
instrument and remove the battery. Replace with DC 9
V battery ( 006P Alkalineiheavy duty ), and reinstate
the cover.
3)Make sure the battery cover is secured after changing
the battery. 11
Each dlglt lndicates the following status :
ffi
D15
D14 +
D13 1
)12 &
)11 ffiay
mT=E3 lG=85
D10 Polarity
0=Positive t=Negative
)9 iAffiAFo'lfiDP), pqsition from right to the
eft, 0 = No DP, 1= 1 DP, 2 = 2 DP, 3 = 3 DP
D8 to Dl @MSD,Dl =LSD
=or example :
If the display reading is L234, then DB to
Dl is : 00001234
)0 End Word = 0D

If the meter happen the troubles such as :
CPU system is hold ( for examp/e, the key buffon can
not be operated... ).
Then make the system RESET will fix the problem,
The system RESET procedures will be either following
method :
During the power on, use a pin to press the ', Reset
Button " ( 3-13, Fig. 1 ) once a while will rest the
circuit system, After execute the ,' System reset ', the
setting value of : Advanced Setting ,'will be cleared
and return to default value.
T2
1012-MG3002