I. INTRODUCTION The instrument is a stable and high-performance digital multimeter driven by battery. It uses the LCD with 42mm high to make the readings clearly. The instrument has the function of measuring DCV, ACV, DCA, ACA, Resistance and Capacitance, Frequency, Diode, Triode, Continuity test, Temperature, Auto power off (can be canceled) and backlight function.
6. Don’t input voltage during the resistance measurement. 7. Test lead should be removed from testing point before changing the batteries or fuses and turn off the power. 8. Comply with local and national safety regulations, wear personal protective equipment (approved rubber gloves, masks and flame-retardant clothing, etc.), to prevent electric shock and arc injury caused by exposure of dangerous electric conductor.
Auto range Auto power off DC measurement AC measurement High voltage True RMS Diode/continuity test Data hold Relative value Low battery Triode Temperature measurement Duty cycle Current / Capacitance Resistance/ Frequency KEY DESCRIPTION VIII. 1. Data hold: Short press the "HOLD B/L" button to hold the measuring data on the LCD, and the symbol “HOLD”...
Frequency range, short press the "Hz/DUTY SELECT" key to convert the Frequency and duty cycle test. 4. Auto / manual range conversion The auto range is already set by default after the meter is turned on, short press the "RANGE" key, the meter convert to manual range, the “AUTO”...
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1-1. Set the knob to the mV/ACV/DCV range, and connect the test leads across to the circuit under test. The voltage and polarity of the point which the red test lead is connected are display on the LCD. 1-2. Insert the black test lead to “COM” jack, the red one to “ ”...
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2-4. Short press the “Hz/DUTY SELECT” key to convert DCA or ACA, the DCA range is already set by default after the meter is turned on. Short press “RANGE” key to convert to manual range, you can choose 400uA, 4000uA at the uA range, and 40mA, 400mA are optional at the mA range, 4A, 10A are optional at the A range.
more than 1MΩ, the reading may take a few seconds to stabilize. This is normal for high resistance measurement. (2) When the input terminal is under open circuit, the figure "OL" will be displayed for the overload condition. (3) When checking in-circuit resistance, be sure the power has been switched off and all capacitors are fully discharged.
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the NPN or PNP, insert emitter, base and collector to proper jack. 5-3. You can get the result from LCD. 6. Diode and continuity test 6-1. Set the range knob to the “ ” range. The diode range is already set by default after the meter is turned on, short press the “Hz/DUTY SELECT”...
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When measuring temperature, insert the negative of the thermocouple sensor into the "COM" jack, and insert the positive into the “ ” jack; put the sensing part of the temperature probe on or inside the tested object. Read the value from the LCD which shows as Celsius.
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Input Overload Range Accuracy Resolution impedance protection ±(0.5%+4d) 10mV 1000V DC / AC About 10MΩ 400V 100mV ±(1.0%+6d) 1000V 10-2. DC mV Input Overload Range Accuracy Resolution impedance protection 40mV 0.01mV 250VDC / AC ±(0.5%+5d) >40 MΩ 400mV 0.1mV 10-3. AC mV (True RMS) Input Overload Range...
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Crest factor: CF≦3, adding an additional error of 1% to the reading at CF≧2. AC frequency measurement error: 0.2%+0.02Hz. AC frequency measurement range: 40Hz~1k Hz. AC frequency input sensitivity: 80V~600V 10-5. DCA Overload Range Accuracy Resolution Load voltage protection 400uA 0.1uA 0.1mV/ mA ±(1.0%+10d)
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reading. 10A (The measurement should not be more than 10 seconds); Recovery time is 15 minutes. 10-7. Resistance Short-circuit Open-circuit Range Accuracy Resolution current voltage 400Ω ± (0.8%+5d) 0.1Ω About 0.4mA 4kΩ 1Ω About 100uA 40kΩ 10Ω About 10uA About 1V ±...
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10-9. Frequency Range Accuracy Resolution Overload protection 10Hz 0.01Hz 100Hz 0.1Hz 1kHz ±(0.5%+10d) 10kHz 10Hz 250VDC/AC RMS 100kHz 100Hz 1MHz 1kHz 20MHz 10kHz Note: The reading will be zero if the signal is below 3Hz. Input sensitivity: 1V 10-10. Diode and continuity Test Range Displaying value Test Condition...
10-12. Transistor hFE DATA TEST Range Displaying range Test condition Basic current is approx. 10uA , hFE NPN or 0 ~ 1000 Vce is about 1.5V Replace the battery or fuse. 1. Move away the test leads from the circuit under test, pull out the test lead from the input jack, turn the range knob to the “OFF”...
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4. If do not operate for a long time, should take out the battery to avoid leakage. 5. When replacing fuse, please use another same type and specification fuse. 13. Trouble Shooting If the meter does not work properly, check the meter as following: Fault Solution Power off--- Pls turn on the...
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