Tenma 72-7222 User Manual
1
Digital Clamp Meter
Model: 72-7222
2
This meter is designed to meet IEC61010-1, 61010-2-032, and 61010-2-033 in
Pollution Degree 2, Measurement Category (CAT II 600V, CAT III 300V) and double
Insulation.
• Do not operate the meter or use test leads if they appear damaged, or if the meter
is not operating properly.
• There are no user-serviceable parts in this product. Refer servicing to qualied
personnel.
• Do not apply voltage between the COM and OHM terminals, while in the
resistance measuring state.
• Do not measure current with the test leads inserted into the voltage or OHM
terminals.
• To avoid electrical shock and personal injury, do not attempt to measure voltage
higher than 600V AC/DC, although the readings may be obtained.
• Do not expose the instrument to direct sunlight, extreme temperature or humidity.
• Before measuring current, check the fuses and turn the power to the circuit off
before connecting the meter to the circuit.
• Disconnect circuit power and discharge all high voltage capacitors before testing
continuity. diode, resistance, capacitance or current.
• Do not use the meter around explosive gas or vapour.
• When using the test leads, keep your ngers behind the nger guards.
• Remove test leads from the meter before opening the meter case or battery door.
• Never operate the meter with the cover removed or the battery door open.
• Use only the test leads supplied or the protection may be impaired.
• Probe assemblies for mains measurements shall be rated as appropriate for
measurement category III according to IEC 61010-031 and shall have a voltage
RATING of at least the voltage of the circuit to be measured.
• Replace the batteries as soon as the low battery indicator appears on the display.
• Remove dead batteries from the meter or if it is not going to be used for a long
time.
• Never mix old and new batteries together, or different types of batteries.
• Never dispose of batteries in a re, or attempt to recharge ordinary batteries.
• Before replacing the battery, turn off the meter and disconnect all the test probes.
• To prolong battery life turn off the meter after use.
SAFETY INFORMATION
Please read these instructions carefully before use and retain for future
reference.
WHAT’S INCLUDED
• Digital multimeter
• Zip case
• User manual
• Test leads
• Two 1.5V AAA batteries
• Point contact temperature probe
3
SYMBOL GUIDE
AC (Alternating Current)
DC (Direct Current)
AC or DC
Grounding
Double insulated
Warning
Low battery
Continuity buzzer
Diode
Fuse
Capacitance test
Conforms to European Union directives
FUNCTIONS
1. Input terminals
2. LCD Display
3. Function buttons x 3
4. Range selector
5. Trigger: press and release the trigger to open
and close the detector jaw.
6. Hands guard: protects hands from touching the
dangerous area.
7. Detector jaw: designed to pick up the AC current
owing through the conductor.
4
OPERATING PARAMETERS
• Operating temperature: 23°C± 5°C
• Relative Humidity: ≤75%.
• Temperature Coefcient: 0.1× (specied accuracy)/1°C
DC VOLTAGE AUTO RANGING
Range Resolution Accuracy Overload Protection
200.0mV 0.1mV ±(0.8%+3)
600V rms
2.000V 1mV
±(0.8%+1)20.00V 10mV
200.0V 100mV
600V 1V ±(1%+3)
Note: The input impedance is 10MΩ.
AC VOLTAGE AUTO RANGING
Range Resolution Accuracy Overload Protection
2.000V 1mV
±(1.2%+5)
600V rms
20.00V 10mV
200.0V 100mV
600V 1V ±(1.5%+5)
Notes:
• Input Impedance: 10MΩ //<100pF
• Frequency Response: 40Hz~1kHz
• Displays effective value of sine wave (mean value response)
• To adjust reading in accordance with effective value
RESISTANCE
Range Resolution Accuracy Overload Protection
200.0Ω 100mΩ ±(1.2%+2)
600Vp
2.000kΩ 1Ω
±(1%+2)20.00kΩ 10Ω
200.0kΩ 100Ω
2.000MΩ 1kΩ ±(1.2%+2)
20.00MΩ 10kΩ ±(1.5%+2)
Note: The input impedance is 10MΩ.
Loading...