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Related Manuals for Tenma 72-7228
Summary of Contents for Tenma 72-7228
- Page 1 Digital Clamp meter Model: 72-7228...
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Page 2: Safety Information
SAFETY INFORMATION Please read these instructions carefully before use and retain for future reference. 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. -
Page 3: Symbol Guide
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 Hands guard: protects hands from touching the dangerous area. Trigger: press and release the trigger to open and close the detector jaw. -
Page 4: Operating Parameters
OPERATING PARAMETERS • Operating temperature: 23°C± 5°C • Relative Humidity: ≤80%. • Temperature Coefficient: 0.1× (specified accuracy)/1°C DC VOLTAGE AUTO RANGING Range Resolution Accuracy Overload Protection 6.600V ±(0.8%+1) 600V DC/AC 66.00V 10mV 600.0V 100mV Note: The input impedance is 10MΩ. AC VOLTAGE AUTO RANGING Range Resolution... -
Page 5: Duty Cycle
Range Resolution Accuracy Overload Protection Around ≤30Ω, the buzzer will sound. 0.1Ω 250VAC (Open circuit voltage approx. –1.2V) Notes: • The open circuit voltage is about 0.45V. • The buzzer may sound when the resistance of a circuit under test is 30Ω~100Ω. •... - Page 6 OPERATION Measuring DC/AC Voltage Warning • To avoid damage to the meter, or risk of personal injury, do not attempt to measure higher than 600V. • The DC and AC voltage ranges are 600V, 66V and 6.6V. • To measure DC or AC voltage, perform the following steps: Insert the red test lead into the VΩHz terminal and the black test lead into the COM terminal.
- Page 7 Connect the test probes with the object being measured. The measured value shows on the display. Notes: • Removing the object under test from its circuit will allow more accurate measurement. • When resistance measurement has been completed, disconnect the test leads from the circuit under test, and remove them from the input terminals.
- Page 8 • The buzzer does not sound if the resistance of a circuit under test is higher than 100Ω. • When continuity testing has been completed, disconnect the test leads from the circuit under test and remove the test leads from the input terminals. Measuring Frequency •...
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Page 9: Current Measurement
• The measured value shows on the display, it is an effective value of sine wave (mean value response). Note: • If the meter does not display 00.00 when 66A range, press ZERO to reset. The ZERO button is then inoperative. •... -
Page 10: Specifications
Specifications A. General Specifications: Maximum voltage including transient 500V rms. overvoltage between any terminals and ground: Auto Polarity Display: 3 5/6 digits LCD display, Maximum display 6666 Overload : Display OL or –OL Low battery : Display Measurement Speed : Updates 3 times/second. -
Page 11: Maintenance
MAINTENANCE Cleaning • Clean the meter with a clean, soft cloth. • Do not use any chemicals, abrasives or solvents that could damage the meter. • Clean the terminals with a mild detergent, as dirt on the terminals can affect readings. - Page 12 INFORMATION ON WASTE DISPOSAL FOR CONSUMERS OF ELECTRICAL & ELECTRONIC EQUIPMENT These symbols indicate that separate collection of Waste Electrical and Electronic Equipment (WEEE) or waste batteries is required. Do not dispose of these items with general household waste. Separate for the treatment, recovery and recycling of the materials used. Waste batteries can be returned to any waste battery recycling point which are provided by most battery retailers.
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