DCM400 - Measurement Sanwa - Free user manual and instructions
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| Product Type | Digital Clamp Meter |
| Brand | Sanwa |
| Model | DCM400 |
| Dimensions | 225 x 70 x 35 mm |
| Weight | 280 g (with batteries) |
| Power Supply | 2 x 1.5V AA batteries |
| Measurement Functions | AC/DC current, AC/DC voltage, resistance, capacitance, frequency, continuity, diode test, temperature |
| AC Current Range | 0-600A |
| DC Current Range | 0-600A |
| AC/DC Voltage Range | 0-600V |
| Resistance Range | 0-40MΩ |
| Capacitance Range | 0-40mF |
| Frequency Range | 0-10MHz |
| Display | 4000 counts LCD with backlight |
| Clamp Jaw Opening | 40 mm (max conductor) |
| Safety Rating | CAT III 600V, CAT II 1000V |
| Maintenance | Clean with damp cloth; do not use solvents |
| Accessories Included | Test leads, temperature probe, carrying case, batteries |
| Spare Parts / Repairability | Batteries user-replaceable; other repairs by qualified service personnel |
Frequently Asked Questions - DCM400 Sanwa
How do I measure AC current with the DCM400?
Set the rotary switch to the AC current range (A~). Clamp the jaw around a single conductor. Read the value on the display. Ensure the jaw is fully closed.
What is the maximum voltage the DCM400 can measure?
The DCM400 can measure AC/DC voltage up to 600V. Do not exceed this limit to avoid damaging the meter or causing injury.
Can I measure DC current with this clamp meter?
Yes, the DCM400 measures DC current up to 600A. Use the DC current range (A=) and clamp around the conductor. The display shows polarity.
How do I replace the batteries?
Turn off the meter and remove it from any circuit. Open the battery compartment on the back. Replace the two AA batteries observing correct polarity. Close the compartment.
What does the continuity beep indicate?
The continuity function beeps when the resistance between test leads is less than about 30Ω. It is used to check for broken wires or closed connections.
How accurate is the DCM400?
Accuracy varies by function. Typically, AC/DC voltage is ±(0.8% + 3 digits), current is ±(2% + 5 digits). Refer to the manual for full specifications.
Can I measure temperature with this device?
Yes, the DCM400 supports temperature measurement with an included thermocouple probe. Select the °C or °F range and connect the probe.
What safety precautions should I take?
Always use the meter in dry conditions. Do not exceed rated voltage/current. Wear appropriate PPE. Follow CAT III safety guidelines when measuring high energy circuits.
Why does the display show 'OL'?
'OL' means overload. The measured value exceeds the selected range. Switch to a higher range or disconnect the meter to avoid damage.
How do I use the data hold function?
Press the HOLD button to freeze the current reading on the display. Press again to release. This is useful for measuring in dimly lit areas.
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USER MANUAL DCM400 Sanwa
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Product information
Brand : Sanwa
Model : DCM400
Category : Measurement