MS8230B Manual Datasheet

MS8230B Datasheet, PDF, Equivalent


Part Number

MS8230B

Description

Digital Multimeter Manual

Manufacture

Mastech

Total Page 2 Pages
Datasheet
Download MS8230B Datasheet


MS8230B
MS8230B
DIGITAL MULTIMETER
INSTRUCTION MANUAL
DIGITAL MULTIMETER
MS8230B
1000 OFF 750 V
V 200
200 A
20 200µ
2 2m
200m 20m
2M 200m
200k
Ω 20k
10ADC
2k 200
600V CAT III
1000V CAT II
COM
10A
hFE
ECBE
NPN
PNP
VΩmA
MAX 10A
UNFUSED
FUSED
MAX 200mA
1000V 750V
Safety Information
Warning
To ensure safe operation, and in order to exploit to the full the
functionality of the meter, please follow the directions in this
section carefully.
This multimeter has been designed according to IEC-1010
concerning electronic measuring instruments with an over voltage
category CAT II 1000V, CAT III 600V and pollution 2.
Follow all safety and operating instructions to ensure that the
meter is used safely and is kept in good operating condition.
With proper use and care, the digital meter will give you years of
satisfactory service.
• Preliminary
- When using the meter, the user must observe all normal safety
rules concerning:
Protection against the dangers of electrical current.
Protection of the meter against misuse.
- When the meter is delivered, check that it has not been
damaged in transit.
- When poor condition under harsh preservation or shipping
conditions caused, inspect and confirm this meter without delay.
- Test leads must be in good condition. Before using verify that
the insulation on test leads is not damaged and/or the leads
wire is not exposed.
- Full compliance with safety standards can be guaranteed only
if used with test leads supplied. If necessary, they must be
replaced with the same model or same electric ratings.
• During Use
- Before using, you must select the right input jack, function and
range.
- Never exceed the protection limit values indicated in
specifications for each range of measurement.
- When the value scale to be measured is unknown beforehand,
set the range selector at the highest position.
01
- Do not measure voltage if the voltage on the terminals exceeds
1000V above earth ground.
- Always be careful when working with voltages above 60V DC or
30V AC rms, keep fingers behind the probe barriers while
measuring.
- Before rotating the transform switch to change functions and
ranges, disconnect test leads from the circuit under test.
- Never perform resistance, transistor and diode measurements
on live circuits.
- Never use the meter under the condition of the explosive air,
steam or dirt.
- If any faults or abnormalities are observed, the meter can not be
used any more and it has to be checked out.
- Never use the meter unless the rear case is in place and fastened
fully.
- Please do not store or use meter in areas exposed to direct
sunlight, high temperature, humidity or condensation.
• Symbols
Important safety information, refer to the operating
manual.
Double insulation (Protection class II).
CAT IIOvervoltage (Installation) category II, Pollution Degree 2
per IEC1010-1 refers to the level of Impulse Withstand
Voltage protection provided.
CAT IIIOvervoltage (Installation) category III, Pollution Degree 2
per IEC1010-1 refers to the level of Impulse Withstand
Voltage protection provided.
High voltage warning symbol
Conforms to european union directive
Earth ground
Fuse
Alternating current
02
Direct current
Diode
This indicates that the display data is being held.
The battery is not sufficient for proper operation.
• Maintenance
-Please do not attempt to adjust or repair the meter by removing
the rear case while voltage is being applied. A technician who
fully understands danger involved should only carry out such
actions.
- Before opening the battery cover or case of the meter, always
disconnect test leads from all tested circuits.
- To avoid the wrong reading causing electricity attack, when the
meter displays “ ”, you must change the battery.
- For continue protection against fire, replace fuse only with the
specified voltage and current ratings: F 200mA/250V (quick acting).
- Do not use abrasives or solvents on the meter, use a damp cloth
and mild detergent only.
- Always set the power switch to the OFF position when the meter
is not in use.
- If the meter is to be stored for a long period of time, the batteries
should be removed to prevent damage to the unit.
• Description
- This meter is a portable professional measuring instrument with
handsome LCD easily reading.
- Single operation of a transform switch makes measurement
convenient. Overload protection and low battery indication are
provided, this meter is ideal for use in the fields, workshop,
school, hobby and home applications.
- This meter is with the functions of data hold.
FRONT PANEL
• Names of
Components
1LCD Display
2Panel
3H Button:
This Button is
used to the switch
of data hold.
4Transform Switch:
This switch is used
to select functions
and desired ranges.
5 10A Jack:
Input terminal
for current 0 ~ 10A.
6 COM Jack:
Common terminal
for measurement.
7 hFE Jack:
This Jack is used to
transistor test.
8 V/Ω/mA Jack:
Input Jack
DIGITAL MULTIMETER
MS8230B
1000 OFF 750 V
V 200
200 A
20 200µ
2 2m
200m 20m
2M 200m
200k
Ω 20k
10ADC
2k 200
600V CAT III
1000V CAT II
COM
10A
hFE
ECBE
NPN
PNP
VΩmA
MAX 10A
UNFUSED
FUSED
MAX 200mA
1000V 750V
03 04
• Specifications
Accuracy is specified for a period of year after calibration and at
18°C to 28°C (64°F to 82°F) with relative humidity to 75%.
1 • General Specifications
- Max. Voltage Between Terminals And Earth Ground: 1000V DC
or 750V AC
2 - Fuse Protection: F 200mA/250V (quick acting).
- Display: 15mm LCD
- Max. Show Value: 1999 (3 1/2)
3 - Polarity Indication: '-'indicates negative polarity.
- Overrange Indication: Display '1'
- Sampling Time: approx. 0.4 second
4 - Low Battery Indication: “ ”displayed
- Power Supply: 1.5V×3 AAA battery.
- Operating Temperature: 0°C to 40°C (32°F to 104°F)
5 - Storage Temperature: -10°C to 50°C (10°F to 122°F)
- Dimension & Weight: 158×74×32 mm, 250g (including battery)
6 • Electrical Specifications
Circumstance Temperature: 23±5°C, Relative Humidity: < 75%
7 DC Voltage
Range Resolution
Accuracy
200mV
0.1mV
±(0.5% of rdg + 2 digits)
2V 0.001V
±(0.5% of rdg + 3 digits)
20V
200V
0.01V
0.1V
±(0.8% of rdg + 3 digits)
1000V
1V
±(0.8% of rdg + 5 digits)
8 - Input Impedance: 1MΩ
- Overload Protection: 200mV range: 250V DC or AC rms,
2V-1000V ranges: 1000V DC or 750VAC rms.
- Max. Input Voltage: 1000V DC
05

MS8230B
AC Voltage
Range
200V
750V
Resolution
0.1V
1V
Accuracy
±(1.2% of rdg + 10 digits)
- Input Impedance: 1MΩ
- Overload Protection: 750V AC rms or 1000V DC
- Frequency Range: 40 to 400Hz
- Response: Average, calibrated in rms of sine wave.
- Max. Input Voltage: 750V rms AC
Diode
Range Resolution
Function
0.001V
Display :read approximate forward
voltage of diode
- Forward DC Current: approx. 1mA
- Reversed DC Voltage: approx.2.8V
- Overload Protection: 250V DC or rms AC
DC Current
Range
200µA
2mA
Resolution
0.1µA
0.001mA
Accuracy
±(1.0% of rdg + 2 digits)
20mA
200mA
10A
0.01mA
0.1mA
0.01A
±(1.5% of rdg + 2 digits)
±(3.0% of rdg + 2 digits)
- Overload Protection: μA, mA ranges: F 200mA/250V fuse
(quick acting), 10A range: unfused.
- Max. Input Current: mA Jack: 200mA, 10A Jack: 10A
- voltage drop: 200mV
Resistance
Range
200Ω
Resolution
0.1Ω
Accuracy
±(1.0% of rdg + 3 digits)
2kΩ 0.001kΩ
20kΩ
200kΩ
0.01kΩ
0.1kΩ
±(1.0% of rdg + 2 digits)
2ΜΩ
0.001ΜΩ
06
- Open Circuit Voltage: 2.8V
- Overload Protection: 250V DC or rms AC
Transistor hFE
Range
hFE
Function
Display: read approximate hFE value (0-1000)
of transistor under test (ALL TYPE)
- Base Current: approx. 2µA, Vce: approx. 2.8V
Operating Instruction
• Data Hold
If you need data hold when measuring, you can put on Hbutton,
it will hold the reading; if you put the button again, data hold is not
continue.
• Preparation For Measurement
- Turn on the meter. If the battery voltage is less than 3.6V, display
will show “ ”, the battery should be changed at this time.
- The “ ” besides the input jack shows that the input voltage or
current should be less than specification on the sticker of the
meter to protect the inner circuit from damaging.
- Select a function and a range for the item to be measured through
rotating the transform switch accordingly. When the value scale
to be measured is unknown beforehand, set the range selector at
the highest position.
- When connection, first connect to the public testing line, then to
the electriferous testing line. When you'll remove it, you should
remove the elecriferous one.
• Measuring DC Voltage
Warning
You can't input the voltage which more than 1000V DC, it's possible
to show higher voltage, but it's may destroy the inner circuit.
Pay attention not to get an electric shock when measuring high
voltage.
07
- Connect the black test lead to the COM jack and the red test lead
to the V jack.
- Set the transform switch at the V range position.
- Connect test leads across the source or load under measurement.
- You can get a reading from LCD display. The polarity of the red
test lead connection will be indicated.
• Note:
- When only the figure '1' is displayed, it indicates overrange
situation and the higher range has to be selected.
- When the value scale to be measured is unknown beforehand,
set the range selector at the highest position.
• Measuring AC Voltage
- Connect the black test lead to the COM jack and the red test lead
to the V jack.
- Set the transform switch at the V range position.
- Connect test leads across the source or load under measurement.
- You can get reading from LCD.
• Measuring AC Voltage
Warning
You can't input the voltage which more than 750V rms AC, it's
possible to show higher voltage, but it's may destroy the inner circuit.
Pay attention not to get an electric shock when measuring voltage.
• Note:
- When only the figure '1' is displayed, it indicates overrange
situation and the higher range has to be selected.
- When the value scale to be measured is unknown beforehand,
set the range selector at the highest position.
• Measuring DC Current
Warning
Shut down the power of the tested circuit, then connect the
meter with the circuit for measurement.
08
- Connect the black test lead to the COM jack and the red test lead
to the mA jack for a maximum of 200mA current. For a maximum
of 10A, move the red lead to the 10A jack.
- Set the transform switch at the A range position.
- Connect test leads in series with the load under measurement.
- You can get reading from LCD. The polarity of red test lead will
be indicated.
• Note:
- When only the figure 'OL' is displayed, it indicates over range
situation and the higher range has to be selected.
- When the value scale to be measured is unknown beforehand,
set therange selector at the highest position.
- “ ” means the socket of INPUT maximum current is 200mA,
over current will destroy the fuse. 10A's maximum current is 10A,
no fuse protection.
• Measuring Resistance
Warning
When measuring in-circuit resistance, be sure the circuit under
test has all power removed and that all capacitors have been
discharged fully.
- Connect the black test lead to the COM jack and the red test lead
to the Ω jack.
- Set the transform switch at the Ω range position.
- Connect test leads across the resistance under measurement.
- You can get reading from LCD.
• Note:
- When only the figure '1' is displayed, it indicates overrange
situation and the higher range has to be selected.
- When the input is not connected, i.e. at open circuit, the figure '1'
will be displayed for the overrange condition.
• Testing Diode
- Connect the black test lead to the COM jack and the red test lead
to the Ω jack. (The polarity of red lead is “+”)
09
- Set the transform switch at the range position.
- Connect the red lead to the anode, the black lead to the cathode
of the diode under testing.
- You can get reading from LCD.
• Note:
- The meter will show the approximate forward voltage drop of the
diode.
- If the lead connection is reversed, only figure'1'will be displayed.
- When the input is not connected, i.e. at open circuit, the figure '1'
will be displayed.
• Testing Transistor
- Set the transform switch at the hFE range position.
- Identify whether the transistor is NPN or PNP type and insert
emitter, base and collector leads into the proper holes of the
transistor on the socket for testing.
- You can get reading from LCD.
Maintenance
• Battery Replacement
Warning
Before attempting open the battery cover of the meter, be sure that
test leads have been disconnected from measurement circuit to
avoid electric shock hazard.
- Loosen the screw fixing the battery cover and remove it.
- Replace the exhausted battery with a new one.
- Put the battery cover as its origin.
• Fuse Replacement
- Loosen the screw fixing the battery cover and remove it.
- Replace the blown fuse with ratings specified.
- Put the battery cover as its origin.
10
Warning
Before attempting open the battery cover of the meter, be sure
that test leads have been disconnected from measurement
circuit to avoid electric shock hazard.
For protection against fire, replace fuses only with specified
ratings: F 200mA/250V (quick acting).
• Test Leads Replacement
Warning
Full in compliance with safety standards can be guaranteed
only if used with test leads supplied. If necessary, they must
be replaced with the same model or same electric ratings.
Electric ratings of the test leads: 1000V 10A.
You must be replaced the test leads if the lead is exposed.
Accessories
1 Test Leads: Electric Ratings 1000V 10A one piece
2 Battery:1.5V, AAA three pieces
3 Instruction Manual
one piece
11 HYS006725


Features MS8230B DIGITAL MULTIMETER INSTRUCTION M ANUAL DIGITAL MULTIMETER MS8230B 1000 OFF 750 V V 200 200 A 20 200µ 2 2 m 200m 20m 2M 200m 200k Ω 20k 10ADC 2k 200 600V CAT III 1000V CAT II COM 10A hFE ECBE NPN PNP VΩmA MAX 10A UN FUSED FUSED MAX 200mA 1000V 750V Safe ty Information Warning To ensure safe o peration, and in order to exploit to th e full the functionality of the meter, please follow the directions in this se ction carefully. This multimeter has be en designed according to IEC-1010 conce rning electronic measuring instruments with an over voltage category CAT II 10 00V, CAT III 600V and pollution 2. Foll ow all safety and operating instruction s to ensure that the meter is used safe ly and is kept in good operating condit ion. With proper use and care, the digi tal meter will give you years of satisf actory service. • Preliminary - When using the meter, the user must observe all normal safety rules concerning: Pro tection against the dangers of electrical current. Protection of the.
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