Fluke 355
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Fluke 355
Confidently take reliable readings with the Fluke 355 AC/DC True-rms Clamp Meter – the tool of choice for high-current clamp-on amp meter measurements up to 2000 A. The extra-wide jaw easily clamps around large conductors, typically found in high-current applications and the extra rugged design has an extra element of user protection when taking high-powered measurements.
Industrial plants and large facilities often have equipment and installations that draw greater than 1000 A. As with other current measurements, it is not practical to disconnect the equipment to make a series of current measurements. The ability to check that an expensive system has been installed correctly, troubleshoot large loads, and make accurate measurements on UPS and Variable Frequency drives with noisy loads is also essential. In industrial settings, compliance with NFPA 70E safety standards, while making measurements, is critical. Fluke has addressed this by designing this product to meet CAT IV 600 V and CAT III 1000 V ratings.
Accurate peak measurements can be taken using the in-rush current mode, ideal for motors and inductive loads. Additionally, the Fluke 355 measures voltage to 1000 V DC and 600 V AC (True-RMS) and resistance to 400 k ohms with a continuity beeper, allowing utility technicians, electrical contractors and industrial service technicians to perform multiple tests with only one tool.
Applications:
- Utilities (low-voltage vaults)
- Industrial plants and facilities
- Building maintenance, e.g. universities, hospitals, large offices, correctional institutions
- Plant works, e.g. power, pharmaceutical, printing, automotive assembly
- Manufacturing and process facilities
- Refineries
- Steel mills and other metal manufacturing plants
- Large DC systems such as DC electroplating, or marine electrical systems
Specifications
Specifications: Fluke 355 True RMS 2000 A Clamp Meter
| Electrical Specifications | ||
| Current measurement DC and AC 10 Hz to 100 Hz | Range | 40 A / 400 A / 2000 A / 1400 AC rms |
| Resolution | 10 mA / 100 mA / 1 A | |
| Accuracy | A: 1.5% rdg + 15 digits A: 1.5% rdg + 5 digits |
|
| Trigger level for Inrush | 0.50 A / 5.0 A / 5 A | |
| Trigger level for Hz filter OFF | 2.50 A / 2.5 A / 8 A | |
| Trigger level for Hz filter ON | 0.50 A / 2.5 A / 8 A | |
| Crest Factor (50/60 Hz) | Range | 40 A / 400 A / 2000 A / 1400 AC rms |
| Crest Factor1 | 2 @ 33 A, 2.4 @ 27 A 2 @ 330 A, 2.4 @ 270 A 2 @ 1000 A, 2.4 @ 833 A |
|
| Current measurement AC 100.1 Hz to 1 kHz | Range | 40 A / 400 A / 2000 A; 1400 AC rms |
| Resolution | 10 mA / 100 mA / 1 A | |
| Accuracy | 10 A: 3.5% rdg + 15 digits 10 A: 3.5% rdg + 5 digits |
|
| Trigger level for Inrush | 0.50 A / 5.0 A / 5 A | |
| Trigger level for Hz filter OFF | 2.50 A / 2.5 A / 8 A | |
| Trigger level for Hz filter ON | 0.50 A / 2.5 A / 8 A | |
| Voltage measurement DC and AC 10 Hz to 100 Hz (600 V and 1000 V ranges have 10% over range to 660 V and 1100 V respectively.) |
Range | 4 V / 40 V / 400 V / 600 V AC rms / 1000 VDC |
| Resolution | 1 mV / 10 mV / 100 mV / 1 V | |
| Accuracy | 1% rdg + 10 digits 1% rdg + 5 digits |
|
| Trigger level for Hz filter OFF | 0.25 V / 6 V | |
| Trigger level for Hz filter ON | 0.25 V / 6 V | |
| Voltage measurement AC 100.1 Hz to 1 kHz (600 V and 1000 V ranges have 10% over range to 660 V and 1100 V respectively.) |
Range | 4 V / 40 V / 400 V / 600 V ac rms |
| Resolution | 1 mV / 10 mV / 100 mV / 1 V | |
| Accuracy | 3% rdg + 10 digits 3% rdg + 5 digits |
|
| Trigger level for Hz filter OFF | 0.050 V / 0.25 V / 6 V | |
| Trigger level for Hz filter ON | 0.050 V / 0.25 V / 6 V | |
| Ohms measurement | Range | 4 kΩ / 40 kΩ / 400 kΩ |
| Resolution | 0.1 Ω / 1 Ω / 10 Ω / 100 Ω | |
| Accuracy | 1.5% + 5 digits | |
| Continuity beeper | On at ≤ 30 Ω Off at ≥ 100 Ω |
|
| Frequency measurement | Measurement range | 5.0 Hz to 1 kHz |
| Resolution | 0.1 Hz (15 Hz to 399.9 Hz); 1 Hz (400 Hz to 1 kHz) | |
| Accuracy – 5.0 Hz to 100 Hz | 0.2% + 2 counts | |
| Accuracy – 100.1 Hz to 1 kHz | 0.5% + 5 counts | |
| Trigger level | Refer to current and voltage tables | |
| 1. Add 2% to error spec for CF > 2 | ||
| General Specifications | ||
| Batteries | Six 1.5 V AA NEDA 15 A or IEC LR6 | |
| Battery life (with typical usage, backlight off) | 100 hours | |
| Test leads | Rated to 1000 V | |
| Weight | .814 kg (1.8 lb) | |
| Jaw size | 58 mm (2.28 in) | |
| Dimensions (L x W x D) | 300 x 98 x 52 mm (12 x 3.75 x 2 in) | |
| Safety rating | IEC 61010-2-032, 600 V CAT IV, 1000 V CAT III | |
| Environmental Specifications | ||
| Operating temperature | 32°F to +122°F (0°C to +50°C) | |
| Storage temperature | -4°F to 140°F (-20°C to +60°C) | |
| Operating humidity | 0 to 95% (non-condensing) | |
| Operating altitude | 2000 m | |
| Storage altitude | 10,000 m | |
| IP rating | 42 (indoor use only) | |
| Drop test requirements | 1 m | |
| EMI, RFI, EMC | FCC part 15, IEC/EN 61326-1:1997 class B IEC/EN 61326:1997 3 V/m, performance criteria B, EN61325 |
|
| Temperature coefficients | Current | 0.1% of reading per °C outside 22°C to 24°C |
| Voltage | 0.1% of reading per °C outside 22°C to 24°C | |