MILWAUKEE ELECTRIC TOOL CORPORATION – TEST & MEASUREMENT PRODUCT
REPAIR SERVICE INSTRUCTIONS — CALIBRATION
2216-20 Light Commercial Digital Multimeter
Perform all calibration at an ambient temperature of 23°C ± 2°C / 73.4°F ± 3.6°F and relative
humidity of 80% - allow the digital multimeter to sit at this temperature for a minimum of 30
minutes before proceeding.
Environmental
Condition
REPAIR SERVICE
INSTRUCTIONS
Calibration
MILWAUKEE ELECTRIC TOOL CORPORATION
13135 WEST LISBON ROAD ● BROOKFIELD, WISCONSIN 53005-2550 ● USA
58-92-2216d1 10/2010
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TABLE OF CONTENTS
Page
Introduction
1
Precautions and Safety Information
Symbols
1
1
Safety
2
Specifications
3
General Specification
3
Voltage Specification
4
Current Specifications
5
Resistance, Continuity, Capacitance Specifications
Frequency, Rotary Switch, Auto Power Off Specification
Physical and environment characteristics
Certification and compliance
Required Equipment
6
7
8
8
9
Basic Maintenance
10
10
10
11
11
11
12
12
13
14
14
15
15
15
Opening the Meter Case
Replacing the Battery
Testing Fuses
Replacing Fuses
Cleaning
Performance Tests
Testing the Display
Testing the Voltage Function
Testing the Resistance Function
Testing the Capacitance Function
Testing the Ampere Function
Testing the Current Function
Testing the Frequency Function
i
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Introduction
Warning
To avoid shock or injury, do not perform the verification tests or calibration procedures
described in the manual unless you are qualified to do so.
The information provided in this document is for the use of qualified personnel only.
Caution
The 2216-20 contain parts that can be damaged by static discharge.
Follow the standard practices for handling static sensitive devices.
Precautions and Safety Information
Use the Meter only as described in the Users Manual. If you do not do so, the protection provided
by the Meter may be impaired. Read the “Safety Information” page before servicing this product.
In this manual, a
Warning identifies conditions and actions that pose hazard (s) to the user; a
Caution identifies conditions and actions that may damage the Meter or the test instruments.
The Symbols
The symbols used on the Meter and in this manual are explained in Table 1.
Table A. The Symbols
Symbol
Meaning
Alternating signal
Direct signal
CAT lll
IEC overvoltage Category lll
Refer to the manual, Important information.
Take appropriate precautions. Hazardous
voltage may be present.
+ +
Battery
Earth ground
Fuse
Double insulated
Do not discard this product or throw away.
1
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SAFETY
Review the following safety precautions to avoid injury and prevent damage to this product or
any products connected to it. To avoid potential hazards, use the product only as specified.
WARNING: These statements identify conditions or practices that could result in personal
injury or loss of life.
CAUTION: These statements identify conditions or practices that could result in damage to
the equipment or other property.
Specific precautions
Use proper Fuse. To avoid fire hazard, use only the fuse type and rating specified for this
product, 10A / 600V Fast-acting (Cat. No. 22-89-0300). For fuse replacement, it is recommended
to return the tool to a factory Service/Sales Support Branch or authorized service station.
Do not operate without covers. To avoid personal injury, do not apply any voltage or current to
the product without covers in place.
Electric overload. Never apply a voltage to a connector on the product that is outside the range
specified for that connector.
Avoid electric shock. To avoid injury or loss of life, do not connect or disconnect probes or test
leads while they are connected to a voltage source.
Do not operate in wet/damp conditions. To avoid electric shock, do not operate this product in
wet or damp conditions.
2
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SPECIFICATIONS
All specifications are warranted unless noted typical and apply to the 2216-20 DMM.
Stated accuracies are at 23°C±5°C at than 80% relative humidity and without the battery
indicator displayed.
General specifications
Characteristics
Display count
Description
6000 counts
3 times / sec
Automatic
Numeric update rate
Polarity display
Display "OL" when the reading exceeds range
by 10%
Overrange display
+ +
Low voltage indicator
Automatic power-off time
Power source
is indicated
20 minutes
1.5V * 2 IEC LR6 or AA size
600V CAT lll between V and COM
Maximum input voltage
600V CAT lll between any terminal and earth
ground
Maximum floating voltage
Maximum input current
10A between A and COM
Maximum open circuit Voltage (current inputs) 600V between A and COM
Overload protection A connector
V connector
10A, 600V, Fast action fuse
V , V , Hz
,
,
Temperature Coefficient
Battery Life
0.1×(Spec. Accuracy) / °C, <18°C or >28°C
30 hours typical (alkaline)
3
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Measurement Characteristics
Accuracy is ±(% reading + number of digits) at 23°C ± 5°C, less than 80% R.H.
Temperature coefficient: 0.1 * (Specified accuracy)/°C, < 18°C, > 28°C
(1) DC Voltage
Range
600.0mV
Resolution
0.1mV
0.001V
0.01V
Accuracy
6.000V
60.00V
600.0V
(0.5% reading + 2 digits)
0.1V
Input Impedance: 10MΩ
Response Time: < 1.5 sec.
Overload Protection: AC/DC 720V for 10 second.
(2) AC Voltage
Range
600.0mV *
6.000V
Resolution
0.1mV
0.001V
0.01V
Accuracy (Sine Wave)
±(1% reading + 3 digits)
for 45Hz ~ 500Hz
60.00V
±(2% reading + 3 digits)
for 500Hz ~ 1kHz
600.0V
0.1V
* LCD displays 0.0mV when measuring < 4.0mV.
Input Impedance: 10MΩ // less than 100pF
Frequency Response: 45 ~ 1kHz (Sine Wave)
AC Conversion Type: RMS sensing, RMS indication
Additional Accuracy by Crest Factor (C.F.): Add 6.0% for C.F. 1.0 ~ 2.0.
Add 7.0% for C.F. 2.0 ~ 2.5.
Add 9.0% for C.F. 2.5 ~ 3.0.
Max. Crest Factor: 1.6 for 6600 ~ 5000 digits
2.0 for 5000 ~ 3000 digits
3.0 for 3000 ~ 0 digits
Response Time: < 2 sec. when the LCD reading is bigger than 1000 digits in each range.
Overload Protection: AC/DC 720V for 10 second.
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(3) DC Current
Range
Resolution
0.001A
Accuracy
6.000A
±(1% reading + 3 digits)
10.00A
0.01A
Response Time: < 1.5 sec.
Maximum measurement time: 5 minutes at 10A with at least 20 minutes rest time.
Overload Protection: AC/DC 20A for 10 second.
(4) AC Current
Range
6.000A *
10.00A
Resolution
0.001A
Accuracy (Sine Wave)
±(1.5% reading + 3 digits)
0.01A
* LCD displays 0.000A when measuring < 0.040A.
Frequency Response: 45 ~ 500Hz (Sine Wave)
AC Conversion Type: RMS sensing, RMS indication
Additional Accuracy by Crest Factor (C.F.): Same as ACV.
Max. Crest Factor: Same as ACV.
Response Time of AC Input: < 2 sec. when the LCD reading is bigger than 1000 digits in each
range.
Maximum measurement time: 5 minutes at 10A with at least 20 minutes rest time.
Overload Protection: AC/DC 20A for 10 second.
(5) Resistance
Range
600.0Ω
Resolution
0.1Ω
Accuracy
6.000kΩ
60.00kΩ
600.0kΩ
6.000MΩ
40.00MΩ *
0.001kΩ
0.01kΩ
0.1kΩ
±(1% reading + 5 digits)
±(2% reading + 5 digits)
0.001MΩ
0.01MΩ
* There is a little rolling less then ±50 digits when measuring > 10.00 MΩ.
Open Circuit Voltage: Approx. 0.6V
Response Time: < 1.5 sec.
Overload Protection: AC/DC 600V for 10 second.
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(6) Continuity
Range
600.0Ω
Resolution
Accuracy
0.1Ω
±(1% reading + 5 digits)
Open Circuit Voltage: Approx. 0.6V
Continuity: Built-in buzzer sounds when measured resistance is less than 30Ω and sounds off
when measured resistance is more than 200Ω, Between 30Ω to 200Ω the buzzer
maybe sound or off either.
Continuity Indicator: 2.7KHz Tone Buzzer
Response Time of Buzzer: < 500 μsec.
Response Time of LCD reading: < 1.5 sec.
Overload Protection: AC/DC 600V for 10 second.
(7) Capacitance
Range
100.0µF
1000µF
Resolution
0.01µF
1µF
Accuracy
±(1.9% reading + 2 digits)
Response Time when measuring 1000µF: < 2.5 sec.
Overload Protection: AC/DC 600V for 10 second.
(8) Frequency
Range
100.00Hz
1000.0Hz
10.000kHz
50.00kHz
Resolution Min. Sensitivity
Accuracy
0.01Hz
0.1Hz
> 10.0Vp-p
> 10.0Vp-p
> 10.0Vp-p
> 10.0Vp-p
±(0.1% reading + 2 digits)
0.001Hz
0.01Hz
Max. Sensitivity: 600V rms
Response Time: < 1.2 sec. when measuring bigger than 2.00Hz signal.
Overload Protection: AC/DC 720V for 10 second.
(9) Over-range Indication
Display “OL” or “-OL” when the reading exceeds 10% of the full scale except the full scale is 10000
counts.
(10) Rotary Switch
In order to prevent a “0” reading, the contacts about the input signal must be made properly
before the contact of the function selection.
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(11) Auto Power Off
The meter automatically turns the power off after powering up and no operation for 20 ± 5 minutes.
To power up, turn the knob back to OFF first.
(12) Measuring Rate: 3 times/sec.
(13) Fuse: 10A/600V Fast Action Fuse
(14) Battery: Alkaline 1.5V Battery * 2
(15) Low Battery Voltage: 2.3V ± 0.1V
(16) Backlight
The meter automatically turns the backlight off after lighting up and no operation for 10 ± 1
minutes.
(17) Battery life (ALKALINE):
Approx. 26 hours with backlight on.
Approx. 360 hours with backlight off.
(18) Overvoltage Category
IEC 61010-1 600V CAT. III
(19) Operating Temperature
<
<
-10°C ~ 30°C,
80%RH
=
30°C ~ 40°C, 75%RH
=
<
40°C ~ 50°C, 45%RH
=
(20) Storage Temperature
-40°C ~ +60°C, 0 ~ 80%RH (No batteries)
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Physical and Environmental Characteristics
Characteristics
Description
170mm×80mm×57mm
Dimensions (H×W×D)
Weight (with battery)
Environmental characteristics
Temperature operating
Non-Operating
0.3Kg
Description
-10 to +50°C
-40 to +60°C
<80% R.H.
Humidity (operating)
Altitude Operating
2,000M (6560 ft.)
Non-Operating
12,300M (40354 ft.)
Vibration & shock Operating
Indoor Use
MIL-PRF-28800F for Class 2 Instrument
Indoor Use
Certifications and compliances
Safety
Designed to IEC61010-1, UL61010-1 and CSA specifications
Category lll 600V.
Input rating
CAT lll : Distribution level mains, fixed installation.
CAT ll : Local level mains, appliances, portable equipment
Over voltage category
Pollution Degree 2
CAT l : Signal level, special equipment or parts of equipment,
telecommunication, electronics.
Do not operate in environments where conductive
Pollutants may be present.
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Required Equipment
Required equipment is listed in Table B. If the recommended models are not available, equipment
with equivalent specifications may be used.
Repairs or servicing should be performed only by qualified personnel.
Table B. Required Equipment
Equipment
Required Characteristics
Recommended Model
AC Voltage Range: 0 ～ 750V AC
Accuracy: ±0.07% (Basic)
Frequency Range: 40 ～ 1kHz
Accuracy: ±2%
Calibrator
Fluke 5500 or Wavetek
9100 Calibrator or
equipment
DC Voltage Range: 0 ～ 1000V DC
Accuracy: ±0.006% (Basic)
Current Range: 0 ～ 20A
Accuracy: AC (40Hz to 1kHz): ±0.08% (Basic)
DC: ±0.02% (Basic)
Frequency Source: 0.5Hz ～ 100kHz
Accuracy: ±0.001%
Amplitude: 0.5V p-p ～ 600V p-p
Accuracy: ±5%
Resistance Range: 1Ω ～ 100MΩ
Accuracy: ±0.03% (Basic)
Capacitance Range: 0.1uF ～ 1100uF
Accuracy: ±0.10% (Basic)
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Basic Maintenance
Warning
To avoid shock, remove the test leads and any input signals before opening the case or
replacing the battery or fuses.
Opening the Meter Case
Caution
To avoid unintentional shock circuit, always place the uncovered Meter assembly on a protective
surface. When the case of the Meter is open, circuit connections are exposed.
To open the Meter case, refer to Figure 1 and do the following:
1. Disconnect test leads from any live source, turn rotary switch to OFF, and remove the test
leads from the front terminals.
2. Remove the battery door by using a flat-blade screwdriver to turn the battery door screws turn
counter-clockwise.
3. The bottom case is secured to the top case by four screws. Using a phillips-head screwdriver
to remove the four screws.
Replacing the Battery
The meter is powered by 2 AA 1.5V batteries.
To replace the battery, refer to Figure
10
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Testing Fuses
To test the internal fuses of the meter.
1. Turn the rotary selector switch to the Ω position.
2. To test FS1, plug a test lead into VΩHz input terminal, and touch the probe to the A input
terminal. The display should indicate between 0.0 to 0.2Ω. (Bussmann KTK-10
recommended). If display reads higher than 0.2Ω, replace the fuse.
Fuse Replacement
Refer to the following figure to replace fuse:
Use only a fuse with the amperage, interrupt, voltage, and speed rating specified.
Fuse rating : 10A , 600V, Fast
Replacing Fuses
ꢀ Warning
To avoid electrical shock, remove the test leads and any input signals before replacing the
battery or fuses. To prevent damage or injury, INSTALL ONLY quick acting fuses with the
following Amp/Volt current interrupt rating :
Fuse : 10A, 600V, FAST.
Cleaning
ꢀWarning
To avoid electrical shock or damage to the Meter, never allow water inside the case. To avoid
damaging the Meter’s housing, never apply solvents to the Meter.
11
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Performance Tests
The following performance tests verify the complete operability of the Meter and check the
accuracy of each Meter function against the Meter’s specifications.
Accuracy specifications are valid for a period of one year after calibration, when measured at an
operating temperature of 18°C to 28°C and at A maximum of 80% relative humidity.
To perform the following tests, it is not necessary to open the case, no Adjustments are
necessary. Merely make the required connections, apply the designated inputs, and determine if
the reading on the Meter display falls within the acceptable range indicated.
If the Meter fails any of these tests, it needs calibration adjustment or repair.
Testing the Display
Rotate the dial from the "OFF" position to any other position. Check the LCD display segments
when all segments are displayed. Compare the display with the example in Figure 2.
LCD Graphics 2216-20
Figure 2 Display Test
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Testing the Voltage Function
To verify accuracy in the AC and DC voltage ranges, do the following:
1. Turn the rotary switch to “V ” position.
2. Connect the Calibrator to the VΩ and COM inputs on the Meter.
3. Set the Calibrator for the voltage and frequency from step 1 to 12 in Table 1.
4. Compare the reading on the Meter display with the display reading shown in Table 1.
5. If the display reading falls outside of the range shown in Table 1, the Meter does not meet
specification.
Table 1 AC Voltage Test:
Step
1
Input
Frequency
50Hz
Reading
500mV
500mV
500mV
5.000V
5.000V
5.000V
50.00V
50.00V
50.00V
500.0V
500.0V
500.0V
494.7 to 505.3
494.7 to 505.3
489.7 to 510.3
4.947 to 5.053
4.947 to 5.053
4.897 to 5.103
49.47 to 50.53
49.47 to 50.53
48.97 to 51.03
494.7 to 505.3
494.7 to 505.3
489.7 to 510.3
2
500Hz
1kHz
3
4
50Hz
5
500Hz
1kHz
6
7
50Hz
8
500Hz
1kHz
9
10
11
12
50Hz
500Hz
1kHz
6. Turn the rotary switch to “V ” position.
7. Set the calibration for the voltage from step 1 to 4 in Table 2.
8. Compare the reading on the Meter display with the display reading shown in Table 2.
9. If the display reading falls outside of the range shown in Table 2, the meter does not meet
specification.
Table 2 DC Voltage Test:
Step
Input
Reading
1
2
3
4
500mV
5.000V
50.00V
500.0V
497.3 to 502.7
4.973 to 5.027
49.73 to 50.27
497.3 to 502.7
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Testing the Resistance Function
To verify the accuracy of the resistance function, do the following:
1. Connect the Calibrator to VΩHz and COM on the Meter.
2. Turn the rotary switch to Ω.
3. Apply the inputs for step 1-6 in Table 3.
4. Compare the Meter display readings to the display readings in Table 3.
5. If the display reading falls outside of the range shown in Table 3, the Meter does not meet
specification.
Table 3 Resistance Test :
Step
Source
560.0
Reading
1
2
3
4
5
6
553.9 to 566.1
5.600k
56.00k
560.0k
5.600M
36.00M
5.539k to 5.661k
55.39k to 56.61k
553.9k to 566.1k
5.539M to 5.661M
35.44M to 36.56M
* Lead resistance on the 400Ω range is not included in error.
Testing the Capacitance Function
The Meter measures capacitance by charging the capacitor with a known Direct current,
measuring the resultant voltage, and calculating the capacitance. If the same capacitance is
measured on an impedance bridge, a different reading may result. This variance is likely to be
Greater at higher frequencies.
To verify the accuracy of the capacitance measuring function, do the Following:
1. Apply the Capacitor to the VΩHz and COM inputs on the Meter. For steps 1-4 in Table 4.
2. Turn the rotary switch to
3. Compare the reading on the Meter display to the reading in Table 4.
4. If the display reading falls outside of the range shown in Table 4, the Meter does not meet
specification.
Table 4 Capacitance Test :
Step
Source
3.6uF
Reading
1
2
3
4
3.3uF to 3.9uF
78.3uF to 81.7uF
312uF to 328uF
979uF to 1021uF
80.0uF
320uF
1000uF
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Testing the Ampere Function
To verify the accuracy of AC current measurement functions, do the following:
1. Connect the Calibrator to the A and COM inputs on the Meter.
2. Turn the rotary switch to A~.
3. Apply the inputs for steps 1-4 in Table 5.
4. For each input, compare the readings on the Meter display to the reading in Table 5.
5. If the display reading falls outside of the range shown in the Table 5, the meter does not meet
specification.
Table 5 AC Current Test:
Step
Source
5.000A
5.000A
10.00A
10.00A
Frequency
50Hz
Reading
1
2
3
4
4.922A to 5.078A
4.922A to 5.078A
9.82A to 10.18A
9.82A to 10.18A
500Hz
50Hz
500Hz
6. Turn the rotary switch to A
.
7. Apply the inputs for steps 1-4 in Table 6.
8. For each input, compare the reading on the Meter display to the reading in Table 6.
9. If the display reading falls outside of the range shown in Table 6, the meter does not meet
specification.
Table 6 DC Current Test:
Step
Source
5.000A
5.000A
10.00A
10.00A
Reading
1
2
3
4
4.922A to 5.078A
4.922A to 5.078A
9.82A to 10.18A
9.82A to 10.18A
Testing the Frequency Function
To verify the accuracy of the Meter’s frequency function, do the following:
1. Connect the Calibrator to the VΩ and COM inputs on the Meter.
Note: The accuracy of the Calibrator’s frequency function must be appropriate for the
specified accuracy of the Meter.
2. Set the rotary switch to Hz.
3. Set Function Generator for the square wave voltage and frequency for steps 1-7 of Table 7.
4. Compare the reading on the Meter display with the display reading shown in Table 7.
5. If the display reading falls outside of the range shown in Table 7, the Meter does not meet
specification.
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Table 7 Frequency Test:
Step
Source
Level
Waveform
Square Wave
Square Wave
Square Wave
Square Wave
Square Wave
Sine Wave
Reading
1
2
3
4
5
6
7
8.0Vp-p
8.0Vp-p
2.00Hz
1.98Hz to 2.02Hz
80.00Hz
800.0Hz
8.000kHz
50.00kHz
10.00Hz
100.0Hz
79.90Hz to 80.10Hz
799.0Hz to 801.0Hz
7.990kHz to 8.010kHz
49.93kHz to 50.07kHz
9.97Hz to 10.03Hz
49.93kHz to 50.07kHz
8.0Vp-p
8.0Vp-p
10.0Vp-p
230.0Vp-p
230.0Vp-p
Sine Wave
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Calibration Procedure
Recalibrate the meter:
It is recommended that the meter may be calibrated once year. Use the following procedure to
calibrate the meter.
Environmental Condition
<
1. Perform calibration at an ambient temperature and relative humidity (23°C±2°C and R.H. 80%).
=
Allow the instrument to sit at this temperature for at least thirty minutes.
Calibration Procedure
(A) Open the bottom case
1. Disconnect the test leads from any circuit under test and turn off the meter.
2. Loosen the screw from the bottom case.
3. Remove the bottom case.
4. Supply 3V to the meter.
(B) DCV Calibration (VR2)
1. Rotate the rotary switch to DCV Function.
2. Connect the output of a DCV calibrator to V and COM input terminals of the meter.
3. Output DCV 4.000V from the calibrator.
4. Adjust VR2 until the display shows 4.000V ± 0.001V.
5. Turn off the output of the calibrator and disconnect the meter from the calibrator.
(C) ACV Calibration (VR3)
1. Rotate the rotary switch to ACV Function.
2. Connect the output of an ACV calibrator to V and COM input terminals of the meter.
3. Output ACV 4.000V @ 60Hz from the calibrator.
4. Adjust VR3 until the display shows 4.015V ± 0.001V.
5. Turn off the output of the calibrator and disconnect the meter from the calibrator.
(D) DCV mV Calibration (VR4)
1. Rotate the rotary switch to DCV Function.
2. Connect the output of a DCV calibrator to V and COM input terminals of the meter.
3. Output DCV 400.0mV from the calibrator.
4. Adjust VR4 until the display shows 400.0mV ± 0.1mV.
5. Turn off the output of the calibrator and disconnect the meter from the calibrator.
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(E) DCA Calibration (VR7)
1. Rotate the rotary switch to DCA Function.
2. Connect the output of a DCA calibrator to V and COM input terminals of the meter.
3. Output DCA 5.000A from the calibrator.
4. Adjust VR7 until the display shows 5.000A ± 0.001A.
5. Turn off the output of the calibrator and disconnect the meter from the calibrator.
(F) Resistance (6kΩ Range) Calibration (VR6)
1. Rotate the rotary switch to the resistance function.
2. Connect the output of a resistance calibrator to V and COM input terminals of the meter.
3. Output resistance 5.000kΩ from the calibrator.
4. Adjust the VR6 until the display shows 5.000kΩ ± 1Ω.
5. Turn off the output of the calibrator and disconnect the meter from the calibrator.
(G) Capacitance Calibration (VR1)
1. Rotate the rotary switch to Capacitance Function.
2. Connect the output of a capacitance calibrator to V and COM input terminals of the meter.
3. Output capacitance 100.0μF from the calibrator.
4. Adjust VR1 until the display shows 100.0μF ± 0.1μF.
5. Turn off the output of the calibrator and disconnect the meter from the calibrator.
(H) Assemble the bottom case
1. Assemble the bottom case.
2. Tighten the screw.
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