Table of Contents
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Table of Contents
Related Manuals for Tenma 72-2985
Summary of Contents for Tenma 72-2985
- Page 1 Mini Clamp Meter Model: 72-2985...
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Page 2: Table Of Contents
CONTENTS Page Number Details What’s Included Important Safety Information Technical Specification Product Overview LCD Overview Operation - AC/DC Voltage Measurement Resistance/Circuit On-Off/Diode/Capacitance AC/DC Current Measurement NCV Non-contact Electric Field Measurement Other Functions Technical Index DC Voltage Measurement AC Voltage Measurement Resistance Measurement Circuit On-Off, Diode Measurement Capacitance Measurement... -
Page 3: Important Safety Information
Please read these instructions carefully before use and retain for future reference. IMPORTANT SAFETY INFORMATION • When using electrical appliances basic safety precautions should always be followed. • Use the meter only as specified in this manual, or the protection provided may be impaired. -
Page 4: Product Overview
3. Clamp head trigger: press the trigger to open the clamp head. 4. NCV Indicator: when the induced AC electric field 72-2985 intensity and induction distance satisfy the designated value, the indicator will flash. 5. Function selection button: rotate to select the functions indicated. -
Page 5: Lcd Overview
LCD OVERVIEW Indicator Meaning TRMS True valid value measurement status AC/DC AC/DC voltage measurement Negative reading Diode measurement Circuit continuity measurement Data hold Ω kΩ MΩ Resistance unit Hz, kHz, MHz Frequency unit mV, V Voltage unit mA, A Current unit nF, µF, mF Capacitance unit (EF) NCV... -
Page 6: Operation - Ac/Dc Voltage Measurement
OPERATION - AC/DC VOLTAGE MEASUREMENT • Select AC voltage or DC voltage range. • Insert the red meter plug into the red jack (positive terminal) and the black meter plug into the black jack (COM terminal). • Touch the test piece with the red and black meter plugs. -
Page 7: Ncv Non-Contact Electric Field Measurement
• Open the clamp head, insert the electric wire and close the clamp head. • Ensure the electric wire is held in the geometric centre, indicated on the clamp head and make sure the clamp heads are closed. • Read the measurement data from the LCD. When the reading is positive it means the current flows from the positive side to the negative side and vice versa. -
Page 8: Technical Index
TECHNICAL INDEX • Accuracy: ± (a% reading + b count). • Environment temperature: 23°C ± 5°C (73.4°F ± 9°F), relative humidity: ≤75%. DC VOLTAGE MEASUREMENT Range Resolution Accuracy • Input impedance: approx. 10MΩ. 200.0mV 0.1mV ± (0.7% + 5) • As the input impedance on the meter is high, when measuring a source of lower voltage 2.000V and lower impedance (less than 10MΩ), the... -
Page 9: Circuit On-Off Diode Measurement
CIRCUIT ON-OFF DIODE MEASUREMENT Range Resolution Remarks Resistance value for circuit disconnect: 0.1Ω >150Ω, buzzer makes no sound. • Overload protection: 600V rms Open circuit voltage is 3.2V: normal voltage for silicon PN junction is 0.5~0.8V. CAPACITANCE MEASUREMENT Range Resolution Accuracy •... -
Page 10: Cleaning & Maintenance
CLEANING & MAINTENANCE WARNING: Before removing the rear cover of the instrument, make sure that the meter is switched off, the meter plugs have been removed from the input port and the lead disconnected from the circuit under test. • To clean the instrument, use a clean damp cloth and a mild detergent.
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