DCM266 Digital Clamp meter OPERATION MANUAL GEBRUIKERSHANDLEIDING MANUEL D’UTILISATEUR
DCM266 Digital Clamp Multimeter 1. Safety Information The meter is completely portable, LCD, 3 1/2 digit clamp with insulation test function (with option 500V insulation tester unit). It has been designed according to IEC-1010 concerning electronic measuring instruments with an overvoltage category (CAT II) and pollution 2 and safety requirements for handheld current clamps for electrical measurement and test.
l l When the jaw are open and will be connected to the conductor under test, your fingers must keep behind the barrier indicator. Never ground yourself when taking electrical measurements. Do not touch exposed metal pipes, outlets, fixtures, etc. which might be at ground potential. Keep your body isolated from ground by using dry clothing, rubber shoes, or any approved insulating material. 1.
2. Description of the meter This meter is a handheld 3 1/2 digital clamp meter for measuring DC and AC voltage, AC current, resistance, continuity test and insulation test. Full overload protection, low battery indication and over-range indication are provided.
2.1 Function and range selector A rotary switch is used to measurement Functions and Ranges. When the switch is set to OFF position, the meter does not operate. 2.2 Transformer jaws Pick up the AC current flowing through the conductor. Press the TRIGGER to open the transformer jaws. When the finger press on the TRIGGER is released, the jaws will close again. 2.3 Data hold A push switch (Push ON, Push OFF. All ACA, ACV, DCV ranges with this feature) 2.
3. Operating instruction 3.1 Measuring current 1. Set the rotary switch at desired AC range position. The transformer jaws pick up the AC current flowing through the conductor. 2. When only the figure " 1" displayed, it indicates overrange situation and the higher range has to be selected. Wrong Correct 3.2 Insulation test (Option 500V insulation tester unit (not available in France and Benelux market)) 1. Connect the insulation test unit V Ω, COM, EXT three bananaplugs to the clamp meter V Ω, COM, EXT.
3.3 Measuring voltage 1. Connect the black test lead to the COM jack and the red test lead to the V Ω jack. 2. Set the rotary switch at the desired DCV or ACV range position and connect test leads across the source or load under measurement. The polarity of the red lead connection will be indicated along with the voltage value when making DC voltage measurement. 3. When only the figure " 1" is displayed, it indicates overrange situation and the higher range has to be selected. 3.4 Measuring resistance 1.
4. Specifications Accuracy is specified for a period of one year after calibration and at 18°C to 28°C (64°F to 82°F) with relative humidity to 80%. 4.
4.3 Insulation test With option 500V insulation tester unit. Range 20MΩ 2000MΩ Resolution 10KΩ 1MΩ Accuracy ±2.0% of (rdg-50) ± 2 digits ±4.0% of (rdg-100) ± 2 digits ±5.0% of (rdg-100) ± 2 digits Note ≤ 500MΩ > 500MΩ 4.4 AC Voltage Range Resolution Accuracy 600V 1V ±1.0% of rdg ± 4 digits Input Impedance : ≥ 9MΩ on all ranges Overload protection : 600V peak or 600Vrms AC on all ranges Frequency Range : 50Hz to 500Hz Response : Average, calibrated in rms of sine wave 4.
4.6 Resistance Range Resolution Accurcacy ±1.0% of rdg ± 3 digits 200Ω 0.1Ω ±1.0% of rdg ± 1 digit 20KΩ 10Ω Overload protection : 250V dc or 250Vrms AC on all ranges Open circuit voltage : 700mV 5. Accessories Test leads Battery Operating manual 6. Battery replacement If the sign "BAT" appears on the LCD display, it indicates that battery should be replaced. Remove the battery cover of case. Replace the exhausted battery with a new one.
