EXTECH MV110

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
Tech Support
be performed on an annual basis to ensure calibration integrity.
Hotlines
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
[email protected]
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
injury.
CAUTION: This indicates that a potentially hazardous condition which, if not avoided, could result in injury or damage to
the meter.
Refer to the manual
for further information
Hazardous voltages
may be present.
Double insulation
Safety Precautions
1.
2.
3.
4.
5.
6.
7.
8.
WARNING: Improper use of this meter can cause damage, shock, injury or death. Read and understand this users
manual before operating the meter.
Make sure any covers or battery doors are properly closed and secured.
Always remove the test leads before replacing the battery or fuses.
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.
Do not exceed the maximum rated input limits.
Use great care when making measurements if the voltages are greater than 25VAC rms or 35VDC. These
voltages are considered a shock hazard.
Always discharge capacitors and remove power from the device under test before performing Capacitance, Diode,
Resistance or Continuity tests.
Remove the battery from the meter if the meter is to be stored for long periods.
Specifications
General Specifications
Display
Sample Rate
Input warning
Fuse Protection
Power Supply
Range selection
Over-range Indication
Auto Off
Low Battery Indication
Operating Temperature /
Humidity
Storage Temperature
Dimension / Weight
1999 count 3 1/2 digit, adjustable angle (MV-110, MV-120)
19999 count 4 1/2 digit, adjustable display (MV-130)
Approximately 2 - 3 per second
Alarm sounds with test leads in the A or 10A socket and the wrong function is selected.
2A (A socket), 0.2A (mA socket), 10A or 20A range not fused
9V battery (NEDA 1604 or equivalent)
Manual
"1"
Unit switches off after 15 minutes of inactivity
battery symbol
0
0
0
0
32 F to 104 F (0 C to 40 C) / < 75% RH
0
0
0
0
14 F to 122 F (-10 C to 50 C)
7.3 x 3.5 x 1.3" (185x89x32mm) LxWxH / approx. 9.7 oz. (300 grams)
Electrical Specifications
Function
Range
(model)
DCV
200mV
(MV-110, MV-120) 2, 20, 200V
1000V
DCV
200mV
(MV-130)
2, 20, 200V
1000V
ACV
200mV
(MV-110, MV-120) 2, 20, 200V
750V
ACV
2, 20, 200V
(MV-130)
750V
DCA
20µA
(MV-110)
200µA, 2, 20 mA
200mA, 2A
10A
DCA
20, 200 mA
(MV-120)
20A
Accuracy
% Rdg. + digits
±(0.5% + 1 digit)\
±(0.8% + 2 digit)
±(0.05% + 3digits)
±(0.1%+ 5 digits)
±(1.2% + 3 digits)
±(0.8% + 3 digits)
±(1.2% + 3 digits)
±(0.8% + 10 digits)
±(1.0% + 15 digits)
±(2.0% + 5 digits)
±(0.8% + 1 digits)
±(1.2% + 1 digits)
±(2.0% + 5 digits)
±(0.8% + 1 digits)
±(2.0% + 5 digits)
Resolution
0.1mV
0.001,0.01,0.1V
1V
0.01mV
0.0001,0.001,0.01V
0.1V
0.1V
0.001,0.01,0.1V
1V
0.0001,0.001,0.01V
0.1V
0.01µA
0.1µA, 0.001,0.01mA
0.1mA, 0.001A
0.01A
0.01, 0.1mA
0.01A
Input
Protection
250V rms
1000VDC
750VAC
250V rms
1000VDC
750VAC
1000VDC
750VAC
1000VDC
750VAC
2A,250V fuse
not fused
0.2A,250V fuse
not fused
Comments
Input impedance > 10MΩ
Input impedance > 1MΩ
Frequency range:
<200V: 40 to 400Hz, < 750V: 40 to 200Hz
15 sec. max @ 20A
Function
DCA
(MV-130)
ACA
(MV-110)
Range
2, 20, 200mA
10A
20µA
200µA
2, 20mA
200mA, 2A
10A
ACA
20, 200 mA
(MV-120)
20A
ACA 6
2, 20 200mA
(MV-130)
10A
Resistance
200Ω
(MV-110, MV-120) 2, 20, 200kΩ, 2MΩ
20MΩ
200MΩ
Resistance
200Ω
(MV-130)
2, 20, 200kΩ, 2MΩ
20MΩ
Accuracy % rdg. + digits
±(0.8% + 10 digits)
±(2.0% + 10 digits)
±(3.0% + 7 digits)
±(1.8% + 3 digits)
±(1.0% + 3 digits)
±(1.8% + 3 digits)
±(3.0% + 7 digits)
±(1.0% + 3 digits)
±(3.0% + 7 digits)
±(1.0% + 10 digits)
±(2.0% + 10 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)
Resolution
0.0001,0.001,0.01mA
0.001A
0.01µA
0.1µA
0.001, 0.01mA
0.1mA, 0.001A
0.01A
0.01,0.1mA
0.01A
0.0001,0.001,0.01mA
0.001A
0.1Ω
1, 10, 100Ω,1kΩ
10kΩ
100kΩ
0.01Ω
0.1, 1, 10, 100Ω
1kΩ
Input Protection
0.2A,250V fuse
not fused
2A,250V fuse
not fused
0.2A,250V fuse
not fused
0.2A,250V fuse
not fused
250V
DC or ACrms
Comments
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 200MΩ range: <75%
RH other ranges: <90%
On the 200MΩ range a 1.0MΩ offset exists.
Subtract 1.0MΩ from all readings.
Function
Capacitance
(MV-120)
Capacitance
(MV-130)
Temperature
(MV-120)
Frequency
(MV-130)
Diode test
Transistor hFE
Continuity
Battery check
(MV-110)
Square Wave
(MV-110)
Range
2,20,200nF
2,20µF
2,20,200nF
2,20µF
-18 to 4000C
0 to7520F
-40 to 10000C
-40 to 18320F
20kHz
0 to 1000
1.5V
9.0V
Accuracy % rdg + digits
Resolution
±(2.5% + 3 digits)
1,10,100pF
1nF, 10nF
±(2.5% + 10 digits)
0.1,1,10,100pF
1nF
o
±(0.75% + 4 digits)
1 C/F
Input Protection
Comments
Test Freq: 400Hz
Test V: 40mV
Type K Thermocouple
±(1.6% + 15 digits)
±(1.5% + 10 digits)
1Hz
250VAC/VDC
Sensitivity: 100mV
Forward DC current approx. 1mA, Reverse DC voltage approx. 3V
Base current approx. 10uA, Vce approx 2.8V
Buzzer sounds when R < 30Ω
30Ω Internal resistance
1.8kΩ Internal resistance
Approx. 50Hz, 4-6V
o
o
o
o
Note: Accuracy is specified for a period of one year after calibration and at 18 C to 28 C (64 F to 82 F) RH: 75% max.
Description (MV120 pictured)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Display release button
AC/DC selection on models MV110, MV120
Hold Button on model MV130.
Power ON/OFF button
LCD display
Transistor socket
Function rotary switch
Capacitance socket (MV120, MV130)
V/F/Ohms socket
COM socket
Low Amperage socket
10/20 Amp socket
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 (MV-110 only) Note: Remove power or voltage from the device under test
1.
2.
3.
Connect the black test lead to the COM-socket and the red lead to the VΩ socket.
Set the rotary switch to the "square wave symbol" position
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.
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.