Mastech MS2001 Operator's Instruction Manual page 2

DIGITAL CLAMP METER DIGITAL CLAMP METER
Operating Instructions 3. Connect test leads across the resistor to be measured
and read LCD display.
DC Voltage Measurement
4. If the resistance being measured is connected to a
1. Connect the red test lead to the "V" jack and the black
circuit, turn off power and discharge all capacitors
lead to the "COM" jack.
before applying test probes.
2. Set rotary switch at desired 1000V position.
NOTE:
3. Connect test leads across the source or load being
1. If the resistance being measured exceeds the
measured.
maximum value of the range selected or the input is
4. Read voltage value on the LCD display along with the
not connected, an overrange indication "1"will be
polarity of the red lead connection.
displayed.
AC Voltage Measurement
2. When checking in-circuit resistance, be sure the
1. Connect the red test lead to "V~" jack and the black
circuit under test has all power removed and that all
test lead to the "COM" jack. capacitors have been discharged fully.
2. Set the rotary switch at desired 750V~ position.
Audible Continuity Test
3. Connect test leads across the source or load being
1. Connect red test lead to "
measured.
"COM" jack.
4. Read voltage value on the LCD display.
2. Set range switch to "
AC Current Measurement
3. Connect test leads to two points of circuit to be tested.
1. Set the rotary switch at desired A~ position.
If continuity exists, built-in buzzer will sound.
2. Press the trigger to open transformer jaw and to clamp
Diode Test
one conductor only, making sure that the jaw is firmly
1. Connect the red test lead to "
closed around the conductor.
test lead to the "COM" jack (The polarity of red lead
3. Read current value on LCD display.
is positive "+".).
4. When only the figure "1" is displayed, it indicates
2. Set the rotary switch at "
overrange situation and the higher range has to be
3. Connect the red test lead to the anode of the diode to
selected.
be tested and the black test lead to the cathode of the
Resistance Measurement
diode. The approx. forward voltage drop of the diode
1. Connect the red test lead to " Ω " jack and black
will be displayed. If the connection is reversed, only
test lead to the "COM" jack (The polarity of red lead
figure "1" will be shown.
is positive "+").
2. Set the rotary switch at desired" Ω "range position.
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DIGITAL CLAMP METER
Specifications
Accuracy is specified for a period of one year after
calibration and at 18 to 28 (64 F to 82
°C °C °
humidity to 80%.
General
Maximum voltage
between terminals
CAT II 1000V and CAT III 600V
and earth ground
Display LCD,1999 counts, updates 2-3/ sec.
Polarity indication "-" displayed for negative polarity.
Overrange Indication Only figure "1" on the display.
Jaw opening capability
42mm (Max conductor size)
Ω " jack, black test lead to
Power 9V battery, NEDA 1604 6F22 006P.
Low battery indication
" position.
" "Appears on the display.
Operating Environment 0 to 40°C
Storage temperature -10°C to 50°C
0.1×specified accuracy) / °C
Ω " jack and the black Temperature coefficient
(<18°C or >28°C)
Altitude 2000m
" position.
Size 250mm×99mm×43mm
Weight Approx.460g.
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DIGITAL CLAMP METER
DC Voltage
Range Resolution Accuracy
F) with relative
°
1000V 1V ±1.0% of rdg ±2 digits
Input Impedance: 10MΩ
AC Voltage
Range Accuracy
Resolution
±1.0% of rdg ±5 digits
750V 1V
Input Impedance: 10MΩ
Frequency range: 40Hz to 400Hz. Response: Average
responding, calibrated in rms. of a sine wave.
AC Current
Range Accuracy
Resolution
± 2.0% of rdg ±5 digits
20A 0.01A
± 2.0% of rdg ±5 digits
200A 0.1A
1000A 1A ± 2.0% of rdg ±7 digits
Overload Protection: 1200A for 60 seconds maximum.
Frequency range: 50Hz to 60Hz.
Resistance
Range Resolution Accuracy
200Ω 0.1Ω ± 1.0% of rdg ± 3 digits
± 1.0% of rdg ± 3 digits
2000Ω 1Ω
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DIGITAL CLAMP METER DIGITAL CLAMP METER
Continuity Accessories
• Operator's instruction manual
Range Description
• Set of test leads
If continuity exists (about less than 20Ω),
• Gift box
built-in buzzer will sound.
• 9 volt battery. NEDA 1604 6F22 006P type.
Replacing The Battery
CAUTION:
WARNING Using this appliance in an environment with a strong
radiated radio-frequency electromagnetic field
Before attempting to open the case of battery, always
(approximately 3V/m), may influence its measuring
be sure that test leads have been disconnected from
accuracy. The measuring result can be strongly
measurement circuits. Close case and tighten screws
deviating from the actual value.
completely before using the meter to avoid electrical
shock hazard.
If " "appears on display, it indicates that the battery
should be replaced. Use the following procedure to
replacing the battery:
1. Disconnect test leads from any live source and remove
the test leads from the input terminals of the meter.
Push the POWER switch to OFF,
2. The battery cover is secured to the bottom case by a
screw. Using a screwdriver, remove the screw from
the battery cover and remove the battery cover.
3. Remove battery and replace with a new equivalent 9
volt battery.
4. Replace the battery cover and reinstall the screw.
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HYS006621
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