Fluke 355 - True-rms 2000 A Clamp Meter
Overview
Features
Specifications
Calibration
Versatile and rugged tools for applications with high currents
Confidently take reliable readings with the True-rms, Fluke 355 digital clamp meter the tool of choice for high current clamp-on amp meter measurement up to 2000 A. The extra-wide jaw easily clamps around large conductors, typically found in high-current applications. The extra rugged design and CAT IV 600 V, CAT III 1000 V ratings add an extra element of user protection when taking high-powered measurements.
Accurate peak measurements can be taken using the in-rush current mode, ideal for motors and inductive loads. The 355 also measures voltage and resistance, making this an ideal clamp meter for utilities, electrical contractors and industrial service technicians.
- Reliably handle a wide range of high-current applications with 2000 A ac + dc true-rms, 1400 A ac, and 2000 A dc
- The large 58 mm (2.3 in) jaw capacity is suitable for large or multiple conductors
- CAT IV 600 V, CAT III 1000 V rating for added user protection
- In-rush current measurement captures ‘power-on’ surge current with accuracy and repeatability
- High voltage measurement of 1000 V ac + dc true-rms, 600 V ac, and 1000 V dc allows the user to perform multiple tests with only one tool
- Resistance to 400K ohms coupled with a continuity beeper provide the convenience of a multimeter in a clamp meter.
- Accurately measure frequency up to 1 kHz for optimum troubleshooting
- Quickly analyze readings using the MIN, MAX, and AVG functions
- A large backlit display allows for easy visibility in low-lit areas
- Use the display hold feature to capture readings even when the display cannot be viewed
- Use the low-pass filter to smooth out noisy loads and stabilize readings
| 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 |
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| 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 Factor* | 2 @ 33 A, 2.4 @ 27 A 2 @ 330 A, 2.4 @ 270 A 2 @ 1000 A, 2.4 @ 833 A |
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| 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 |
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| 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 V dc | |
| Resolution | 1 mV / 10 mV / 100 mV / 1 V | ||
| Accuracy | 1 % rdg + 10 digits 1 % rdg + 5 digits |
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| 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 |
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| 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 |
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| 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 | ||
*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 (LxWxD) | 300 mm x 98 mm x 52 mm (12 in x 3.75 in 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 3V/m, performance criteria B, EN61325 |
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| 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 | |
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