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Fluke 1550C

Fluke 1550C 5 kV Insulation Tester handles a wide range of high voltage equipment

The Fluke 1550C performs digital insulation testing up to 5 kV, making it ideal for testing high voltage equipment including switch gear, motors, generators, and cables. You can use the 1550C to test the entire range of test voltages specified in With measurement storage, a PC interface, and , the 1550C can help you evaluate trends and eliminate doubt. It’s the perfect tool for preventive or predictive maintenance programs designed to identify potential equipment failures before they occur. And it comes with a three-year warranty and CAT IV 600 V safety rating.

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Description

Key features

  • Fluke Connect®-enabled digital insulation resistance tester for a wide range of high voltage applications
  • Tests voltage up to 5 kV
  • Alerts users that line voltage is present
  • Displays voltage readings up to 600 V AC or DC
  • Features CAT III 1000 V, CAT IV 600 V safety rating

Others useful capabilities:

  • Offers selectable test voltages in 50 V steps from 250 V to 1000 V, and in 100 V steps above 1000 V
  • Saves time by trending on the spot with Fluke Connect
  • Stores measurements in up to 99 memory locations, with each location assigned a unique, user defined, label for easy recall
  • Delivers long battery life, allowing users to perform over 750 tests between charges
  • Automatically calculates Dielectric Absorption (DAR) and Polarization Index (PI) with no additional setup
  • Features a guard system that eliminates the effect of surface leakage current on high-resistance measurements
  • Measures capacitance and leakage current
  • Measures resistance up to 2 TΩ
  • Includes a ramp function for breakdown testing
  • Presents results on a large, digital/analog LCD for easy viewing
  • Provides timer settings up to 99 minutes for timed tests
  • Comes with test cables with alligator clips, infrared adapter, soft carrying case, and three-year warranty

Specifications

Electrical Specifications
The tester’s accuracy is specified for one year after calibration at operating temperatures of 0°C to 35°C. For operating temperatures outside the range (-20°C to 0°C and 35°C to 50°C), add ± .25% per °C, except on the 20% bands add ± 1% per °C.
Insulation Resistance Measurement
Test voltage (DC)
250 V Range < 250 kΩ,
250 kΩ to 5 GΩ
5 GΩ to 50 GΩ
> 50 GΩ
Accuracy (± reading) Unspecified
5%
20%
Unspecified
500 V Range < 500 kΩ
500 kΩ to 10 GΩ
10 GΩ to 100 GΩ
> 100 GΩ
Accuracy (± reading) Unspecified
5%
20%
Unspecified
1000 V Range < 1 MΩ
1 MΩ to 20 GΩ
20 GΩ to 200 GΩ
> 200 GΩ
Accuracy (± reading) Unspecified
5%
20%
Unspecified
2500 V Range < 2.5 MΩ
2.5 MΩ to 50 GΩ
50 GΩ to 500 GΩ
> 500 GΩ
Accuracy (± reading) Unspecified
5%
20%
Unspecified
5000 V Range < 5 MΩ
5 MΩ to 100 GΩ
100 GΩ to 1 TΩ
> 1 TΩ
Accuracy (± reading) Unspecified
5%
20%
Unspecified
Bar graph range 0 to 1 TΩ (1550C) – 0 to 2 TΩ (1555)
Insulation test voltage accuracy -0%, +10% at 1 mA load current
Induced AC mains current rejection 2 mA maximum
Charging rate for capacitive load 5 seconds per μF
Discharge rate for capacitive load 1.5 s/μF
Leakage current measurement Range 1 nA to 2 mA
Accuracy ± (5% + 2 nA)
Capacitance measurement Range 0.01 μF to 15.00 μF
Accuracy ± (15% rdg + 0.03 μF)
Timer Range 0 to 99 minutes
Resolution setting 1 minute
Resolution indication 1 second
Live circuit warning Warning range 30 V to 660 V AC/DC, 50/60 Hz
Voltage accuracy ± (15% + 2 V)
Software specifications FlukeView Formsâ„¢ basic software requires a PC running Windows XP, Windows Vista , Windows 7 or Windows 8.
General Specifications
Display 75 x 105 mm
Power 12 V lead-acid rechargeable battery, Yuasa NP2.8-12
Charger Input (AC) 85 V to 250 V AC 50/60 Hz 20 VA
This Class II (double insulated) instrument is supplied with a Class 1 (grounded) power cord. The protective earth terminal (ground pin) is not connected internally. The extra pin is for added plug retention only.
Dimensions 269 x 277 x 160 mm (10.6 x 10.9 x 6.3 in)
Weight 3.7 kg (8.2 lb)
Temperature (operating) -20°C to 50°C (-4°F to 122°F)
Temperature (storage) -20°C to 65°C (-4°F to 149°F)
Humidity 80% to 31°C decreasing linearly to 50% at 50°C
Altitude 2000 m
Enclosure sealing IP40
Input overload protection 1000 V AC
Electromagnetic compatibility EN 61326
Safety compliance IEC 61010-1: Overvoltage category II, Pollution Degree 2.
IEC 61010-2-030: Measurement 600V CAT IV / 1000V CAT III
IEC 61557-1, IEC 61557-2

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