Multi Measuring Instruments
M-310 Universal Clamp Tester
- SKU:
- M-310
- Weight:
- 135.00 Grams
Description
M-310 Universal Clamp Tester
The M-310 Universal Clamp Tester is designed for measuring AC leakage current and load current using two different current transformer (CT) configurations. It combines a 40 mm diameter clamp CT with a U-type CT, allowing current measurements across different cable arrangements.
The 40 mm CT supports AC leakage current measurement in the 30/300 mA ranges and load current measurement in the 30/300 A ranges. The U-type CT measures AC load current up to 300 A and enables measurements on single-phase or three-phase cables without separating individual wires. The instrument also features a 3.5-digit LCD, data hold function, and automatic power-off.
Accuracy Specifications – 40mmφCT
Conditions: 23°C ± 5°C, 80% RH or less (50/60 Hz).
| Function | Range | Resolution | Accuracy |
|---|---|---|---|
| AC Current (50/60 Hz) | 30 mA | 0.01 mA | ±1.2% rdg ± 5 dgt |
| 300 mA | 0.01 mA | ±1.2% rdg ± 5 dgt | |
| 30 A | 0.01 A | ±1.2% rdg ± 5 dgt | |
| 300 A (0–200 A) | 0.01 A | ±1.2% rdg ± 5 dgt | |
| 300 A (200–250 A) | 0.01 A | ±3.0% rdg ± 5 dgt | |
| 300 A (250–300 A) | 0.01 A | ±5.0% rdg ± 5 dgt |
Accuracy Specifications – U Type CT
Conditions: 23°C ± 5°C, 80% RH or less (50/60 Hz).
| Cable Type | Range | Resolution | Accuracy |
|---|---|---|---|
| Single phase IV cable | AC 300 A | 0.1 A | Approx. ±5% |
| Parallel VVF cable | 0.1 A | Approx. ±5% | |
| Three phase VVR cable | 0.1 A | Approximate value |
Key Features –M-310 Universal Clamp Tester
- Dual CT Configuration: 40 mm clamp CT and U-type CT for AC current measurement.
- AC Leakage Current Measurement: 30/300 mA ranges with 0.01 mA resolution.
- AC Load Current Measurement: 30/300 A ranges with the clamp CT and up to 300 A with the U-type CT.
- Multiple Cable Types: U-type CT supports single-phase IV, parallel VVF, and three-phase VVR cables, with a maximum conductor diameter of 20 mm.
- Digital Display and Functions: 3.5-digit LCD with bar graph, data hold, and automatic power-off.
Documents
Catalog: e_ca_m310.pdf
Instruction Manual: e-ma-m310.pdf
Additional Information
Measuring method: |
Dual slope integration mode |
Accuracy: |
See accuracy specifications in description tab |
Display: |
3.5 digit LCD, max. reading of 3200 |
Battery life: |
Approx. 50 hours(LR-44) |
Power consumption: |
5mW |
Withstanding voltage: |
AC 2200V 1 minute max. (Between the core of CT and outer case) |
Over range indication: |
"OL" mark on LCD |
Data hold indication: |
"DH" mark on LCD |
Low battery indication: |
"Battery" icon on LCD |
Sampling rate: |
2 times/sec(Digital display) 12 times/sec(Bar graph display) |
Storage temperature: |
-10℃ to 60℃, 70%RH max. ( Without condensation ) |
Power supply: |
1.55V (SR-44, LR-44)×2 |
Dimension: |
64(W)×180(H)×21(D)mm |
Accessories: |
Soft case:1 || Instruction manual:1 || Batteries LR-44(1.55V):2 |
Auto power off: |
Approx. 10 minutes later after power on |
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