OPERATING INSTRUCTION
DC/AC CLAMP METER
Safety
International Safety Symbols
This symbol, adjacent to another symbol or terminal, indicates the user must refer to the manual for further information.
This symbol, adjacent to a terminal, indicates that, under normal use, hazardous voltages may be present
Double insulation
SAFETY NOTES
• Do not exceed the maximum allowable input range of any function
• Do not apply voltage to meter when resistance function is selected.
• Set the function switch OFF when the meter is not in use.
WARNINGS
• Set function switch to the appropriate position before measuring.
• When measuring volts do not switch to current/resistance modes.
• Do not measure current on a circuit whose voltage exceeds 240V.
• When changing ranges using the selector switch always disconnect the test leads from the circuit under test.
• Do not exceed the maximum rated input limits.
1
CAUTIONS
Improper use of this meter can cause damage, shock, injury or death. Read and understand this user manual before operating the meter.
Always remove the test leads before replacing the battery.
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.
Use great care when making measurements if the voltages are greater than 25VAC rms or 35VDC. These voltages are considered a shock hazard.
Remove the battery if the meter is to be stored for long periods.
Always discharge capacitors and remove power from the device under test before performing Diode, Resistance or
Continuity tests.
• Voltage checks on electrical outlets can be difficult and misleading because of the uncertainty of connection to the recessed electrical contacts. Other means should be used to ensure that the terminals are not "live".
• If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.
Function
A AC, A DC
V DC, V AC
Input Limits
Maximum Input
80A
600V DC/AC
250V DC/AC Resistance, Diode, Continuity,
Frequency, Duty Cycle,
Capacitance Test,
2
Meter Description
1. Current clamp
2. Clamp trigger
3. Safety protection ring
4. ZERO button
5. Data Hold and Backlight button
6. Mode select button
7. Range select button
8. Hz/%duty button
9. Rotary Function swith
10. LCD display
11. COM input jack
12. V Ω Hz/% jack
13. Battery Cover
1. AC DC AC (alternating current) and DC (direct currrent)
2. Minus sign
3. 8.8.8.8
4000 count (0 to 3999) measurement reading
4. AUTO AutoRange mode
5. ZERO ZERO mode
6. Diode test mode
7. •))) Audible Continuity
8.
HOLD Data Hold mode
9.
℃ , ℉ , m,V,A,K,M, Ω , Units of measure list
3 n u
Specifications
Function Range &
Resolution
DC Current 4.000 A DC
80.0 A DC
AC Current
(50/60Hz)
4.000 A AC
80.0A AC
400.0 mV DC
4.000 V DC
DC Voltage
40.00 V DC
400.0 V DC
600 V DC
400.0 mV AC
4.000 V AC
AC Voltage
(50/60Hz)
Resistance
40.00 V AC
400.0 V AC
600 V AC
400.0 Ω
4.000K
Ω
40.00K
Ω
400.0K
Ω
4.000M
Ω
40.00M
Ω
Capacitance 40.00nF
400.0nF
4.000
μ F
40.00
μ F
100.0
μ F
Frequency 5.000Hz
50.00Hz
4
Accuracy (% of reading)
± (2.8% + 10 digits)
± (3% + 8 digits)
± (3.0% +10digits)
± (3.0% + 8 digits)
± (1.0% + 15 digits)
± ( 1.0
% + 3 digits)
± (1.5% + 3 digits)
± (2.0% + 3 digits)
± (1.0% + 30 digits)
± (2.0% + 5 digits)
± (2.0% + 5 digits)
± (1.0% + 4 digits)
± (1.5% + 2 digits)
± (2.5% + 3 digits)
± (3.5% + 5 digits)
± (5.0% reading + 30digits)
± (3.0% reading + 5 digits)
± (3.5% reading + 5 digits)
± (5.0% reading + 5 digits)
± (1.5% reading + 5 digits)
± (1.2% reading + 2 digits)
500.0Hz
5.000kHz
50.00kHz
500.0kHz
Sensitivity: 10Vrms min.
@ 20% to 80% duty cycle
5.000MHz
10.00MHz
Duty Cycle 0.5 to 99.0% ± (1.2% reading + 2 digits)
Pulse width: 100µs - 100ms, Frequency: 5Hz to 150kHz;
Sensitivity: 10Vrms min.
Analog output: (for ACA & DCA range), 10mV/Amp (20KHz at ± 3dB)
Accuracy: ± ( 4.5% reading + 1mV )
Output impedance: approx 3K Ω
5
Clamp size Opening 0.9" (23mm) approx
Diode Test Test current of 0.3mA typical;
Continuity Check
Open circuit voltage 1.5V DC typical.
Threshold <150 Ω ; Test current< 1mA
Low Battery Indication “ ” is displayed
Overrange Indication “OL” is displayed
Measurements Rate 2 per second, nominal
Input Impedance
Display
7.8M
Ω (VDC and VAC)
4000 counts LCD
Operating Temperature 14 to 122 o F (-10 to 50 o C)
Storage Temperature
Relative Humidity
-22 to 140
90%(0 o o F (-30 to 60
C to 30 o C) o C); 75%(30 to 40 o C); 45%(40 o C to 50 o C)
Altitude Operating: 3000m; Storage 10,000m o C
Over voltage
Battery
Category III 600V
Two 1.5V “AAA” Batteries
Auto OFF approx. 25 minutes
Dimensions/Weight 200x50x35mm/200g
Safety For indoor use and in accordance with Overvoltage
Category II, Pollution Degree
2. Category II includes local level, appliance, portable equipment, etc., with transient overvoltages less than
Overvoltage Cat. III
6
Operation
NOTICES : Read and understand all warning and precaution statements listed in the safety section of this operation manual prior to using this meter. Set the function select switch to the
OFF position when the meter is not in use.
AC/DC Current Measurements
WARNING: Ensure that the test leads are disconnected from the meter before making current clamp measurements.
1. Set the Function switch to the
80ADC, 4ADC, 80AAC or 4AAC range. If the range of the
80A
4A
AC
4A
80A
V
OFF measured is not known, select the higher range first then move
600V
V
Hz/ % to the lower range if necessary.
2. Press the trigger to open jaw. Fully enclose one
80A
4A
AC
4A
80A
V
600V
OFF
V
Hz/% conductor
to be measured.
3. If is DCA measurement need press ZERO button to enter the zero reading.
3. The clamp meter LCD will display the reading.
7
DC/AC Voltage Measurements
1. Insert the black test lead into the negative COM terminal and the red test lead into the positive V terminal.
2. Set the function switch to the V position.
3. Select AC or DC with the MODE button.
4. Connect the test leads in parallel to the circuit under test.
5. Read the voltage measurement on the LCD display.
Resistance and Continuity Measurements
1. Insert the black test lead into the negative COM terminal and the
2.
red test lead into the positive terminal.
Set the function switch to the •))) Ω position.
3.
4.
Use the multifunction MODE button to select resistance.
Touch the test probe tips across the circuit or component under test. It is best to disconnect one side of the device under test so the rest of the circuit will not interfere with the resistance reading.
5. For Resistance tests, read the resistance on the LCD display.
6. For Continuity tests, if the resistance is < 150 Ω , a tone will sound.
Diode Measurements
1. Insert the black test lead banana plug into the negative
COM jack and the red test lead banana plug into the positive diode jack.
2. Turn the rotary switch to the •))) position.
8
3. Press the MODE button until “ “ appears in the display.
4. Touch the test probes to the diode under test. Forward voltage will indicate 0.4V to 0.7V. Reverse voltage will indicate “ OL ”. Shorted devices will indicate near 0mV and an open device will indicate “ OL ” in both polarities.
Red Black Black Red
Probe Probe Probe Probe
Forward test Reverse test
Capacitance Measurements
WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all capacitors before taking any capacitance measurements. Remove the batteries and unplug the line cords.
1. Set the rotary function switch to the cap position.
2. Insert the black test lead banana plug into the negative
(COM) jack.
Insert the red test lead banana plug into the positive (V) jack.
3. Touch the test leads to the capacitor to be tested.
4. Read the capacitance value in the display
Frequency or % duty cycle measurements
1. Set the rotary function switch to the “Hz/%” position.
2. Insert the black lead banana plug into the negative
COM jack and the red test lead banana plug into the positive V jack.
3. Select Hz or % duty with the Hz/% button.
4. Touch the test probe tips to the circuit under test.
5.
Read the frequency on the display.
9
Analog Signal Output
1. Switch the function selector to DCA or ACA range.
2. Connect red test lead to “ V Ω ” terminal and black one to the “ COM ” terminal.
3. Connect tip of the test leads to the meter or oscilloscope input terminal.
4. Open the clamp by pressing the jaw-opening handle and insert the cable to be measured into the jaw.
5. Close the clamp and get the analog voltage signal from the meter.
Note:
If measuring DC via clamp, signal output will be DC voltage.
If measuring AC via clamp, signal output will be DC voltage.
If measuring AC via clamp, signal output will be AC voltage. mV
12V
80A
4A
80A 4A
V
AC
OFF
Hz/
%
V
60
0V
V
10
Data Hold
To freeze the LCD meter reading, press the data hold button. The data hold button is located on the left side of the meter (top button). While data hold is active, the HOLD display icon appears on the LCD. Press the data hold button again to return to normal operation.
Note: The HOLD feature will activate when the Backlight is turned on. Press the HOLD key again to exit Hold .
Backlight
Press and hold the HOLD key for >1 second to turn on or off the display backlight function.
Note: The HOLD feature will activate when the Backlight is turned on. Press the HOLD key again to exit Hold .
ZERO BUTTON
For ACA and Capacitance Zero & Offset adjustment.
Manual Ranging
The meter turns on in the autoranging mode. Press the
Range button to go to manual ranging. Each press of the range button will step to the next range as indicated by the units and decimal point location. Press and hold the Range button for two seconds to return to autoranging. Manual ranging does not function in the AC Current , Diode and
Continuity check functions
Battery Replacement
1. Remove the one rear Phillips head screw
2. Open the battery compartment
3. Replace the Requires two “AAA” batteries (UM4 R03)
11
4. Re-assemble the meter
12
