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Summary of Contents for Tenma 72-2590
- Page 1 Digital Multimeter Model: 72-2590 and 72-2595...
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Page 2: Important Safety Information
IMPORTANT SAFETY INFORMATION Please read these instructions carefully before use and retain for future reference. This instrument is designed and manufactured in compliance with: G84793, lEC61010-1, CAT III 600V, Pollution Degree 2 and Double Insulation standards. • Check the test leads, probes and case insulation before using. If you find any breakage or abnormality, or you consider the device is broken, stop using the device immediately. -
Page 3: What's Included
WHAT’S INCLUDED • Digital multimeter • User manual • Set of test leads • K-type temperature probe (72-2595 only) FUNCTIONS POWER button LCD Display HOLD button Range selector Input terminals OPERATING PARAMETERS • Ambient temperature 23 ± 5 º º •... - Page 4 AC VOLTAGE Accuracy Range Resolution 72-2590 72-2595 200μA 0.1μA ±(0.8%+1) 1μA ±(0.8%+1) 20mA 10μA ±(0.8%+1) 200mA 100μA ±(1.5%+1) 10mA ±(2.0%+5) Notes • Overload protection. • μA, mA input: 500mA/600V Φ6x32mm. • A input: 10A/600V Φ6x32mm. • Maximum input current: 10A (For current over 5A, measuring time must not exceed 15 seconds).
- Page 5 RESISTANCE Accuracy Range Resolution 72-2590 72-2595 200Ω 0.1Ω ±(1.2%+2) 2kΩ 1Ω 20kΩ 10Ω ±(1.0%+2) 200kΩ 100Ω 2MΩ 1kΩ ±(1.2%+2) 20MΩ 10kΩ ±(1.5%+2) 200MΩ 100kΩ ±[5.0%(reading-10)+10)] Notes • Open-circuit voltage: ≤ 700mV (The open circuit voltage is about 2.9V at 200MΩ...
- Page 6 When resistance ≤10Ω, the Open circuit voltage is about buzzer beeps and an approximate 2.8V. resistance value in Ω displays. Note: Overload protection, 600Vrms DC or AC. BATTERY TEST (72-2590 ONLY) Range Resolution Accuracy Description 10mV Built-in load resistance: 240Ω...
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Page 7: Measuring Resistance
Measuring DC Current • Insert the black test lead into COM terminal. If the current under test is ≤ 200mA, insert the red test lead into the mA terminal. If the current is higher, insert the red test lead into 10A terminal. •... - Page 8 Connect the test probes with the circuit under test, if the resistance between the two tested points is <10Ω, the built-in buzzer sounds. • Battery Test (72-2590 only) • Insert the test leads into the input terminals (red to and black to COM).
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Page 9: Battery Replacement
BATTERY REPLACEMENT Warning: Only replace the battery after the test leads are removed and the power is off. Screw To replace the battery, • Unscrew and remove the battery cover. • Replace the battery with a new 9V battery of the same Battery type. - Page 10 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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