User’s Guide
MultiView™ Series
Digital MultiMeters
Models:
MV110
MV120
MV130
WARRANTY
EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of
shipment (a six month limited warranty applies on sensors and cables). If it should become necessary to return the instrument for service during or
beyond the warranty period, contact the Customer Service Department at (781) 890-7440 ext. 210 for authorization. A Return Authorization (RA)
number must be issued before any product is returned to Extech. The sender is responsible for shipping charges, freight, insurance and proper
packaging to prevent damage in transit. This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring,
operation outside of specification, improper maintenance or repair, or unauthorized modification. Extech specifically disclaims any implied warranties
or merchantability or fitness for a specific purpose and will not be liable for any direct, indirect, incidental or consequential damages. Extech's total
liability is limited to repair or replacement of the product. The warranty set forth above is inclusive and no other warranty, whether written or oral, is
expressed or implied.
REPAIR AND CALIBRATION SERVICES
Extech offers complete repair and calibration services for all of the products we
sell. For periodic calibration, NIST certification or repair of any Extech product, call
customer service for details on services available. Extech recommends that calibration
be performed on an annual basis to ensure calibration integrity.
Copyright © 2002 Extech Instruments Corporation. All rights reserved
including the right of reproduction in whole or in part in any form.
V1.2 04/02
781-890-7440 ext. 200
Tech Support
Hotlines
extech@extech.com
www.extech.com
Introduction
Congratulations on your purchase of Extech model MV-110, MV-120, or MV-130 digital multimeter. Properly used, this
meter will provide many years of reliable service. The meters contains a large 3-1/2 or 4-1/2 digit LCD with adjustable
viewing angle and provides such measurement functions as: DC and AC voltage, DC and AC current, resistance,
temperature, frequency, capacitance, hFe, battery, square wave output, diode, and continuity check depending upon the
model.
Safety
International Safety Symbols
WARNING: This indicates that a potentially hazardous condition which, if not avoided, could result in death or serious
CAUTION: This indicates that a potentially hazardous condition which, if not avoided, could result in injury or damage to
for further information may be present.
injury.
the meter.
Refer to the manual Hazardous voltages Double insulation
Safety Precautions
1. WARNING: Improper use of this meter can cause damage, shock, injury or death. Read and understand this users
manual before operating the meter.
2. Make sure any covers or battery doors are properly closed and secured.
3. Always remove the test leads before replacing the battery or fuses.
4. Inspect the condition of the test leads and the meter itself for any damage before operating the meter. Repair or
replace any damage before use.
5. Do not exceed the maximum rated input limits.
6. Use great care when making measurements if the voltages are greater than 25VAC rms or 35VDC. These
voltages are considered a shock hazard.
7. Always discharge capacitors and remove power from the device under test before performing Capacitance, Diode,
Resistance or Continuity tests.
8. Remove the battery from the meter if the meter is to be stored for long periods.
Specifications
General Specifications
Display 1999 count 3 1/2 digit, adjustable angle (MV-110, MV-120)
Sample Rate Approximately 2 - 3 per second
Input warning Alarm sounds with test leads in the A or 10A socket and the wrong function is selected.
Fuse Protection 2A (A socket), 0.2A (mA socket), 10A or 20A range not fused
Power Supply 9V battery (NEDA 1604 or equivalent)
Range selection Manual
Over-range Indication "1"
Auto Off Unit switches off after 15 minutes of inactivity
Low Battery Indication battery symbol
Operating Temperature /
Humidity
Storage Temperature 140F to 1220F (-100C to 500C)
Dimension / Weight 7.3 x 3.5 x 1.3" (185x89x32mm) LxWxH / approx. 9.7 oz. (300 grams)
19999 count 4 1/2 digit, adjustable display (MV-130)
320F to 1040F (00C to 400C) / < 75% RH
Electrical Specifications
Function
(model)
DCV
(MV-110, MV-120)
DCV
(MV-130)
ACV
(MV-110, MV-120)
(MV-130)
DCA
(MV-110)
(MV-120)
Range Accuracy
200mV 0.1mV 250V rms
2, 20, 200V
1000V ±(0.8% + 2 digit) 1V
200mV 0.01mV 250V rms
2, 20, 200V
1000V ±(0.1%+ 5 digits) 0.1V
200mV ±(1.2% + 3 digits) 0.1V
2, 20, 200V ±(0.8% + 3 digits) 0.001,0.01,0.1V
750V ±(1.2% + 3 digits) 1V
2, 20, 200V ±(0.8% + 10 digits) 0.0001,0.001,0.01V ACV
750V ±(1.0% + 15 digits) 0.1V
20µA
200µA, 2, 20 mA
200mA, 2A ±(1.2% + 1 digits) 0.1mA, 0.001A
10A ±(2.0% + 5 digits) 0.01A not fused
20, 200 mA ±(0.8% + 1 digits) 0.01, 0.1mA 0.2A,250V fuse DCA
20A ±(2.0% + 5 digits) 0.01A not fused
% Rdg. + digits
±(0.5% + 1 digit)\
±(0.05% + 3digits)
±(2.0% + 5 digits)
±(0.8% + 1 digits)
Resolution Input
0.001,0.01,0.1V
0.0001,0.001,0.01V
0.01µA
0.1µA, 0.001,0.01mA
Protection
1000VDC
750VAC
1000VDC
750VAC
1000VDC
750VAC
1000VDC
750VAC
2A,250V fuse
Comments
Input impedance > 10M
Input impedance > 1M
Frequency range:
<200V: 40 to 400Hz, < 750V: 40 to 200Hz
15 sec. max @ 20A
Ω
Ω
Function Range Accuracy % rdg. + digits Resolution Input Protection Comments
(MV-130)
ACA
(MV-110)
(MV-120)
(MV-130)
Resistance
(MV-110, MV-120)
Resistance
(MV-130)
2, 20, 200mA ±(0.8% + 10 digits) 0.0001,0.001,0.01mA 0.2A,250V fuse DCA
10A ±(2.0% + 10 digits) 0.001A not fused
20µA
200µA
2, 20mA ±(1.0% + 3 digits) 0.001, 0.01mA
200mA, 2A ±(1.8% + 3 digits) 0.1mA, 0.001A
10A ±(3.0% + 7 digits) 0.01A not fused
20, 200 mA ±(1.0% + 3 digits) 0.01,0.1mA 0.2A,250V fuse ACA
20A ±(3.0% + 7 digits) 0.01A not fused
2, 20 200mA ±(1.0% + 10 digits) 0.0001,0.001,0.01mA 0.2A,250V fuse ACA 6
10A ±(2.0% + 10 digits) 0.001A not fused
200Ω
2, 20, 200kΩ, 2MΩ
20MΩ
200MΩ
200Ω
2, 20, 200kΩ, 2MΩ
20MΩ
±(3.0% + 7 digits)
±(1.8% + 3 digits)
±(0.8% + 3 digits)
±(0.8% + 1 digits)
±(1.0% + 2 digits)
± (5.0% rdg +10d) +10 dig
±(0.2% + 5 digits)
±(0.2% + 1 digits)
±(0.5% + 5 digits)
0.01µA
0.1µA
0.1Ω
1, 10, 100Ω,1kΩ
10kΩ
100kΩ
0.01Ω
0.1, 1, 10, 100Ω
1kΩ
2A,250V fuse
250V
DC or ACrms
Frequency: 40 to 400Hz
Maximum input:
10A (MV-110, MV-130), 20A (MV-120)
Average responding
15 sec. max @ 20A
Open circuit voltage <0.7V
RH 200M
Ω range: <75%
RH other ranges: <90%
On the 200M
Subtract 1.0MΩ from all readings.
Ω range a 1.0MΩ offset exists.
Function Range Accuracy % rdg + digits Resolution Input Protection Comments
Capacitance
(MV-120)
Capacitance
(MV-130)
Temperature
(MV-120)
Frequency
2,20,200nF
2,20µF
2,20,200nF
2,20µF
-18 to 4000C
0
0 to752
-40 to 1000
-40 to 1832
F
±(2.5% + 3 digits) 1,10,100pF
±(2.5% + 10 digits) 0.1,1,10,100pF
±(0.75% + 4 digits)
0
±(1.6% + 15 digits)
C
0
F
1nF, 10nF
1nF
o
1
C/F
20kHz ±(1.5% + 10 digits) 1Hz 250VAC/VDC Sensitivity: 100mV
Test Freq: 400Hz
Test V: 40mV
Type K Thermocouple
(MV-130)
Diode test Forward DC current approx. 1mA, Reverse DC voltage approx. 3V
Transistor hFE 0 to 1000 Base current approx. 10uA, Vce approx 2.8V
Continuity
Battery check
(MV-110)
Square Wave
(MV-110)
1.5V
9.0V
Approx. 50Hz, 4-6V
Buzzer sounds when R < 30Ω
30Ω Internal resistance
1.8kΩ Internal resistance
Note: Accuracy is specified for a period of one year after calibration and at 18 oC to 28 oC (64 oF to 82 oF) RH: 75% max.
Description (MV120 pictured)
1. Display release button
2. AC/DC selection on models MV110, MV120
3. Hold Button on model MV130.
4. Power ON/OFF button
5. LCD display
6. Transistor socket
7. Function rotary switch
8. Capacitance socket (MV120, MV130)
9. V/F/Ohms socket
10. COM socket
11. Low Amperage socket
12. 10/20 Amp socket
13. Type K thermocouple input socket (MV120 only).
Operation
General Procedures
1. Apply power via ON/OFF switch. If the low battery symbol appears, replace the battery.
2. Set the function switch to the correct position before taking measurements.
3. Press the Display Release Button and set the display to a convenient viewing angle.
AC/DC Voltage Measurements (DO NOT EXCEED MAX INPUT LIMIT OF 1000VDC)
1. Connect the black test lead to the meter's COM socket and the red lead to the meter's "VΩF" socket.
2. Set the rotary switch to a "V" position range higher than the expected voltage.
3. Press the "DC / AC" button to select AC or DC measurement (for models MV-110 and MV-120 only).
4. Connect the test leads to the unit under test (load, circuit, etc.)
5. The value of the measured voltage will appear in the LCD display.
Resistance Measurement
1. Connect the black test lead to the COM socket and the red lead to the V/Ω socket.
2. Set the rotary switch to the "Ω" range required.
3. Connect the test leads to the unit under test.
4. The value of the measured resistance will appear in the LCD display.
Diode Measurements
1. Connect the black test lead to the COM-socket and the red lead to the VΩ socket.
2. Set the rotary switch to the "Diode" symbol position
3. Connect the test leads to the diode under test.
4. The value of the forward voltage drop (0.3 to 0.6V) or the open circuit voltage (2.6V approx.) will appear in the
LCD display for a good diode.
AC/DC Current Measurements
(If the magnitude of current is unknown, select the highest meter range and then reduce the range as needed)
1. Connect the black test lead to the meter's COM-socket and the red lead to either the "A" socket if measuring less
than 2A or the "10A/20A" socket if measuring less than 10A or 20A
2. Set the rotary switch to the "A" position as required. Always select the highest range when unsure of the current
value.
3. Press the "DC / AC" button to select AC or DC measurement.
4. Connect the test leads in series with the unit under test (load, circuit, etc.)
5. The value of the measured current will appear in the LCD.
6. Negative DC current will appear with a "-" sign.
NOTE: The mA and A ranges are protected by a 0.2A or a 2A fuse. The 10A or 20A ranges are not fuse protected.
Always replace blown fuses with fuses of the identical type.
Continuity Measurements (Remove power or voltage from the device under test)
1. Connect the black test lead to the COM-socket and the red lead to the VΩ socket.
2. Set the rotary switch to the "Continuity" symbol position
3. The continuity buzzer will sound if the measured resistance is < 30Ω
Battery Measurements (MV-110 only)
1. Connect the black test lead to the COM-socket and the red lead to the VΩ socket.
2. Set the rotary switch to the 1.5V or 9V position
3. The meter will display the voltage under load of the tested battery.
Square Wave Output
1. Connect the black test lead to the COM-socket and the red lead to the VΩ socket.
2. Set the rotary switch to the "square wave symbol" position
3. The meter will output a 50Hz square wave.
Capacitance Measurements (MV-120, MV-130 only) Note: Remove power or voltage from the device under test
1. Insert the capacitor in the CAP socket.
2. Set the rotary switch to the proper capacitance position.
3. The value of the measured capacitor will appear in the LCD.
(MV-110 only) Note: Remove power or voltage from the device under test
Temperature Measurements (MV-120 only)
1. Insert the type K thermocouple mini-connector into the "K" socket.
2. Set the rotary switch to the ºF or ºC position.
3. The value of the measured temperature will appear in the LCD.
Transistor hFe Measurements
1. Move the rotary select switch to the hFe position
2. Plug the transistor under test into the appropriate transistor input jacks on the meter front.
3. For transistor types PNP and NPN, the meter has matching input sockets. Also, for each leg of the transistor (E, B,
and C) the meter has matching input sockets. Plug the transistor into the sockets that match its type.
4. Read the hFe value on the LCD display.
Auto Power Shut-Off
To conserve battery power, the meter will automatically power down if it has not been used for more than 15 minutes.
Battery Replacement
Remove the test leads from the meter and remove the screw from the battery compartment cover (rear bottom). Lift off
the cover, replace the battery, and replace battery cover.
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