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Musktool-ETCR3580B-Insulation Resistance On-line Monitor
Precaution For Use
Thank you for purchasing our ETCR6420 Series Of Clamp Multimeter, The meter design complies with the safety requirements of IEC1010-1 CATⅢ 600V standard. In order to better for use of the product, please be certain:
-- Read this user manual carefully.
-- Comply with the operating cautions in this manual.
u Under any circumstance, shall pay special attention on safety in using this meter.
u Pay attention to the text labeled on the panel and backplane of the meter.
u Keep the clamp clean and maintain regularly.
u When measuring voltage, do not input the limit voltage which exceeds DC 600V or AC 600V RMS value.
u The voltage below 36V is the safety voltage, in the measurement of voltage higher than 36V DC or 25V AC, should check whether the probe is reliable contact, whether the connection correctly, whether the insulation is well, so as not to shock.
u When switch the functional range, the probes should leave the test point.
u Please choose the correct function and range to avoid misoperation. Although this series of instruments have the protection function for full range , for the safety, please pay more attention.
u When measuring the current, do not input a exceed maximum current which marked at the input end.
Introduction
ETCR6420 Series Clamp Multimeter is a portable type clamp digital multimeter, which can measure DC voltage, AC voltage, current true RMS value, resistance, frequency, on-off test, temperature, forward voltage drop of the diode and other parameters. The capacitance measurement range is up to 10mF and the measurement speed of large capacitance is fast. The instrument with a small structure, easy to operate and portable. It is an ideal instrument for electrical measurement, which provides a safe, accurate and convenient new electric power meter for electric inspectors, and is an essential tool for electrical safety inspection.
Specification
3.1. General Specification
3.1.1. With CMOS large scale integrated circuit as the core, the measurement range can be automatically switched when measuring AC/DC voltage, AC current, resistance, frequency and capacitance, making measurement more convenient.
3.1.2. Display mode: LCD display
3.1.3. Max display: 3999 or 9999(capacitance and frequency)
3.1.4. Max measure wire diameter: 27mm
3.1.5. Automatic negative polarity indication: display”-”
3.1.6. Low power indication: display “ 
”
3.1.7. Automatic shut down: If there is no measurement range switch within 10 minutes after starting up, the meter will shut down automatically to save power. Press SEL key to restart after sleeping. If you do not need to shut down automatically, you can press the DH key to start up the meter. At this time, the meter will not display shutdown symbol “”
3.1.8. Working temperature: 0℃~40℃, ≤70%RH
3.1.9. Store temperature: -10℃~60℃, ≤85%RH
3.1.10. Power supply: DC3V, Alkaline dry battery (LR03 1.5VX2PCS)
3.1.11. Size: 213 (long) 80 (width) 35 (thickness)mm
3.1.12. Weight: About 250g(include battery); Total weight: About 0.4kg(include accessories).
3.2.Technical Specification
Accuracy: ±（% reading + digit), The calibration valid period is one year.
Environment temperature:23℃±5℃, Environment humidity≤70%RH
3.2.1. DC Voltage DCV
Range | Accuracy | Resolution |
400mV | ±(0.5%+5) | 0.1mV |
4V | 1mV | |
40V | 10mV | |
400V | 100mV | |
600V | 1V |
Input impedance: about 10MΩ (6420B: 400mV＞100M)
3.2.2. AC Voltage ACV
Range | ETCR6420 | ETCR6420B | Resolution |
400mV | - | ±(1.2%+5) | 0.1mV |
4V | ±(1.2%+5) | 1mV | |
40V | 10mV | ||
400V | 100mV | ||
600V | 1V |
