Description
M-730X AC/DC Clamp Milliammeter (CE)
The M-730X AC/DC Clamp Milliammeter (CE) is a leakage current measuring instrument designed for low-current measurement in AC and DC electrical circuits. It provides DC measurement ranges of 100 mA and 1000 mA, along with AC ranges of 100 mA, 1000 mA, and 10 A at 45–65 Hz.
The instrument uses a separate CTP-30DC clamp sensor with a 30 mm jaw opening and provides 0.01 mA resolution on its 100 mA ranges. It supports DC current measurements in 4–20 mA control circuits and sleeping current measurements in automotive electronic circuits. A DC analog output of 100 mV full scale per range enables connection to compatible recording equipment.
The M-730X also features an integrated Bluetooth module, manual zero adjustment for DC measurements, data hold, and automatic power-off. Its specified safety ratings are CAT II 600 V and CAT III 300 V, with a maximum circuit voltage limitation of AC/DC 600 V.
Accuracy Specifications
Conditions: 23°C ± 5°C, less than 85% RH.
| Function | Range | Measuring Range | Resolution | Accuracy |
|---|---|---|---|---|
| DC Current (DCA) | 100 mA | 0.1 to ±99.99 mA | 0.01 mA | ±1% rdg ± 10 dgt |
| 1000 mA | 1 to ±300 mA | 0.1 mA | ±1% rdg ± 10 dgt | |
| ±300.1 to ±700 mA | 0.1 mA | ±2% rdg ± 10 dgt | ||
| ±700.1 to ±999.9 mA | 0.1 mA | ±3% rdg ± 10 dgt | ||
| AC Current (ACA), 50/60 Hz | 100 mA | 0 to 99.99 mA | 0.01 mA | ±2% rdg ± 10 dgt |
| 1000 mA | 0 to 999.9 mA | 0.1 mA | ±2% rdg ± 10 dgt | |
| 10 A | 0 to 9.999 A | 0.001 A | ±1% rdg ± 10 dgt |
Additional Accuracy Conditions
| Parameter | Specification |
|---|---|
| Influence of terrestrial magnetism | Less than ±2.0 mA |
| Influence of magnetization | Less than ±2.0 mA by DC 1.5 A on/off |
| Influence of CT opening and closing | Less than ±1.0 mA |
| Maximum DC input current | DC 1.5 A |
| Maximum AC input current | AC 20 A |
Key Features –M-730X AC/DC Clamp Milliammeter (CE)
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AC/DC leakage current measurement with 0.01 mA resolution on the 100 mA range.
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Measurement ranges: DC 100 mA/1000 mA and AC 100 mA/1000 mA/10 A.
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30 mm clamp opening with separate CTP-30DC current transformer.
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DC analog output: 100 mV full scale on each measurement range.
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Integrated Bluetooth module, as specified in the supplied product information.
Additional Information
Measuring function: |
AC/DC leakage current |
AC Conversion: |
Average sensing rms reading |
Accuracy: |
See accuracy specifications in description tab |
Display: |
Max. 2000 count on LCD with annunciators |
Current Consumption: |
Approx. 9mA (Approx. 200 hours continuous) |
Option: |
Cable for recorder |
Jaw opening capability: |
30mmφ |
Over range indication: |
"OL" mark on LCD |
Data hold indication: |
"DH" mark on LCD |
Sampling rate: |
1 time/sec. for DC and 6 times/sec. for AC |
Withstanding Voltage: |
AC 3700V/1 minute between CT and outer case |
Storage Temperature: |
-10~60℃, < 70%RH (without condensation) |
Low battery indication: |
"B" mark on LCD |
Auto power off: |
Approx. 10 minutes after power on and can absolve this function by switch |
Power supply: |
LR6, AM-3 or AA size battery×4 |
Size: |
Main unit:78(W)×155(H)×32(D)mm, Approx. 280g 33(W)×170(H)×24(D)mm CT (CTP-30DC):1.2m lead, Approx. 165g |
Accessories: |
Carrying case, Batteries, Instruction manual |
Measuring range: |
DC 100mA/1000mA, AC 100mA/1000mA/10A (45Hz-65Hz) |
Zero adjustment: |
For DC current range by "0 ADJ" switch |
Signal Output: |
DC 100mV full scale to each range (Output impedance: less than 10kΩ) |
A/D Conversion: |
Dual slope integration method |