Description
The CM-07 TRMS DC/AC Clamp Meter is designed for professionals who need precise current measurement in electrical maintenance and troubleshooting. It supports DC and AC current up to 400A and delivers True RMS readings, which ensures accuracy when measuring sine waves, square waves, and other non-linear signals. The meter also provides non-contact frequency measurement, adding flexibility for diagnostic work.
The instrument features a large 3¾-digit LCD and a 40-segment bar graph that updates up to 30 times per second. This fast response helps users detect transient current changes easily. With manual range selection, Max/Min, and Data Hold functions, the CM-07 offers simple yet powerful operation. The one-touch zero function allows quick DC calibration for improved accuracy.
Built for field use, the clamp includes a 23 mm jaw opening, making it suitable for crowded switch boxes and cable areas. It operates reliably from -10°C to 50°C and up to 2000 m altitude. The compact body (183 × 61.3 × 35.6 mm) and 190 g weight ensure easy portability. The package includes carrying bag, batteries, and user manual for immediate deployment.
Specifications
General Specifications:
| Conductor Size: |
23mm max. (approx.) |
| Dimension (Box): |
183 (L) x 61.3 (W) x 35.6 (H) mm
7.2″ (L) x 2.5″ (W) x 1.4″ (H) |
| Battery Type: |
two 1.5V SUM-3 |
| Display: |
3 3/4 LCD with 40 seg. bargraph |
| Range Selection: |
Manual |
| Overload Indication: |
OL |
| Power Consumption: |
20 mA (approx.) |
| Low Battery Indication: |
|
| Sampling Time: |
3 times/sec. (display)
30 times/sec. (bargraph) |
| Operating Temperature: |
-10°C to 50°C |
| Operating Humidity: |
less than 85% relative |
| Altitude: |
up to 2000M |
| Storage Temperature: |
-20°C to 60°C |
| Storage Humidity: |
less than 75% relative |
| Weight: |
190g (battery included) |
| Accessories: |
Carrying bag x 1
Users manual x 1
1.5V battery x 2 |
Electrical Specifications: (23℃±5℃)
DC Current:
| Range |
Resolution |
Accuracy |
Overload Protection |
| 40A |
10mA |
±1.0%±2dgts |
DC 400A |
| 400A (0-150A) |
100mA |
±1.0%±2dgts |
| 400A (150-200A) |
100mA |
±2.2%±2dgts |
| 400A (200-400A) |
100mA |
±4.0%±2dgts |
Frequency:(auto range)
| Range (Hz) |
Resolution (Hz) |
Accuracy |
Sensitivity |
Overload Protection |
| 1 – 100K |
0.001 – 100 |
±0.5%±2dgts |
0.3A |
AC 500A |
AC Current: (True RMS, Crest Factor <= 4)
| Range |
Resolution |
Accuracy |
Overload Protection |
| 50/60 Hz |
40 – 1KHz |
| 4A (0-500mA) |
1mA |
±1.5%±7dgts |
±2.0%±7dgts |
AC 400A |
| 4A (500mA-4A) |
1mA |
±1.5%±3dgts |
±2.0%±4dgts |
| 40A |
10mA |
±1.5%±3dgts |
±2.0%±4dgts |
| 100A (0-100A) |
100mA |
±1.5%±3dgts |
±2.0%±4dgts |
AC 500A |
| 400A (100-200A) |
100mA |
±2.2%±3dgts |
±2.5%±4dgts |
| 400A (200-400A) |
100mA |
±4.0%±3dgts |
±5.0%±4dgts |
