Sanwa DCM400AD Clamp Meter for Automotive Maintenance
The Sanwa DCM400AD is a rugged, handheld digital clamp meter engineered specifically for automotive diagnostic and maintenance tasks. Housed in a slender, ergonomic body, it incorporates a precision AC current sensing clamp with a 25 mm jaw opening that accommodates a wide range of conductor sizes without requiring lead disconnection. The meter’s 3¾‑digit, 3999‑count LCD display is complemented by a 42‑segment analog bar graph for rapid trend observation, ensuring both accuracy and responsiveness. Its auto‑ranging capability simplifies operation by automatically selecting the optimal measurement range, while manual range override remains available for specialized applications.
A sampling rate of twice per second for digital readings and twenty times per second for the analog bar graph guarantees real‑time feedback during fluctuating current or voltage conditions. Additional convenience features include Data Hold, which freezes the displayed reading for post‑measurement review, and a Relative measurement mode for zero‑reference comparisons.
To conserve power, the DCM400AD enters standby after 30 minutes of inactivity, with a low‑battery indicator alerting the user in advance of replacement. Conforming to IEC 61010‑1 CAT III 300 V and II 600 V safety standards and rated for operation between 0 °C and 40 °C, the instrument combines durability with precision for professional automotive environments.
Features:
- 3999‑count digital display with 42‑segment analog bar graph.
- Auto‑range and manual‑range selection.
- AC/DC current measurement up to 400 A.
- AC/DC voltage measurement up to 600 V.
- Resistance measurement with continuity buzzer (beeps < 40 Ω).
- Data Hold and Relative value modes.
- Auto power‑off after 30 minutes.
- Low‑battery indication.
Specifications:
| Measurement | Range | Best Accuracy | Resolution |
|---|---|---|---|
| AC Current: | 40 A / 400 A | ±(2 % + 10 dgt) | 0.01 A / 0.1 A |
| DC Current: | 40 A / 400 A | ±(2.5 % + 10 dgt) | 0.01 A / 0.1 A |
| AC Voltage: | 400 V / 600 V | ±(1.5 % + 5 dgt) | 0.1 V / 1 V |
| DC Voltage: | 400 V / 600 V | ±(1 % + 2 dgt) | 0.1 V / 1 V |
| Resistance: | 400 Ω | ±(1 % + 2 dgt) | 0.1 Ω |
| Continuity: | — | Buzzer < 40 Ω; 1.5 V open | — |
Applications:
- Automotive maintenance.
- Digital multimeter (DMM) functions.
Package Contents:
- 1x Test lead (TL‑23a)
- 1x Carrying case (C‑DCM400)
- 1x Instruction manual
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