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1550C Insulation Resistance Tester

Fluke 1550C 5 kV Insulation Tester
Fluke 1550C 5 kV Insulation Tester
The Fluke 1550C offers digital insulation testing up to 5 kV

Evaluate the trends, eliminate the doubt
The Fluke 1550C insulation resistance tester offers digital insulation testing up to 5 kV, making them ideal for testing a wide range of high voltage equipment including switchgear, motors, generators and cables.

Fluke insulation testers can now conduct the entire range of test voltages specified in IEEE 43-2000 with a best in class, 3 year warranty and CAT IV 600 V safety rating. With measurement storage and PC interface, the 1550C is the perfect tool for preventative or predictive maintenance programs designed to identify potential equipment failures before they occur.

Features include:

  • Test voltages to up 5 kV
  • CAT III 1000 V, CAT IV 600 V safety rating
  • Warning function alerts the user that line voltage is present and gives the voltage reading up to 600 V AC or DC for increased user safety
  • Selectable test voltages in 50 V steps from 250 V to 1000 V, and 100 V steps above 1000 V
  • Measurements can be stored in up to 99 memory locations, with each location assigned a unique, user defined, label for easy recall
  • Long battery life gives the user over 750 tests between charges
  • Automatic calculation of Dielectric Absorption (DAR) and Polarization Index (PI) with no additional setup
  • Guard system eliminates the effect of surface leakage current on high-resistance measurements
  • Large digital/analog LCD for easy viewing
  • Capacitance and leakage current measurement
  • Ramp function for breakdown testing
  • Resistance measurements up to 2 TΩ
  • Timer settings up to 99 minutes for timed tests
  • 3-year warranty
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) Range Accuracy (± reading)
250 V < 200 kΩ Unspecified
200 kΩ to 5 GΩ 5 %
5 GΩ to 50 GΩ 20 %
> 50 GΩ Unspecified
500 V < 500 kΩ Unspecified
500 kΩ to 10 GΩ 5 %
10 GΩ to 100 GΩ 20 %
> 100 GΩ Unspecified
1000 V < 200 kΩ Unspecified
200 kΩ to 20 GΩ 5 %
20 GΩ to 200 GΩ 20 %
> 200 GΩ Unspecified
2500 V < 200 kΩ Unspecified
200 kΩ to 50 GΩ 5 %
50 GΩ to 500 GΩ 20 %
> 500 GΩ Unspecified
5000 V < 200 kΩ Unspecified
200 kΩ to 100 GΩ 5 %
100 GΩ to 1 TΩ 20 %
> 1 TΩ Unspecified
10000 V (1555 Only) < 200 kΩ Unspecified
200 kΩ to 200 GΩ 5 %
200 GΩ to 2 TΩ 20 %
> 2 TΩ 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, 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 Forms™ basic software requires a PC running Windows XP, Windows Vista , Windows 7 or Windows 8
General Specifications
Display 75 mm 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 mm x 277 mm x 160 mm (10.6 in x 10.9 in x 6.3 in)
Weight 3.7 kg (8.2 lb)
Temperature (operating) -20 ºC to 50 ºC (-4 ºF to 122 ºF)
Temperature (storage) -20 ºC to 65 ºC (-4 ºF to 149 ºF)
Humidity 80 % to 31 ºC decreasing linearly to 50 % at 50 ºC
Altitude 2000 m
Enclosure sealing IP40
Input overload protection 1000 V AC
Electromagnetic compatibility EN 61326
Certifications Fluke 1550c Certifications
Safety compliance IEC 61010-1: Overvoltage category II, pollution degree 2
IEC 61010-2-030: Measurement 600V CAT IIV / 1000V CAT III
IEC 61557-1, IEC 61557-2
Model NameDescriptionPrice List
FLUKE-1550CFluke 1550C 5 kV Insulation Tester
Includes:
  • Test cables with alligator clips (red, black, green)
  • Infrared adapter with interface cable
  • FlukeView® Forms Basic CD-ROM
  • AC power cord
  • Soft carrying case
  • English manual
  • User's manual on CD-ROM
  • Quick reference card
  • Software license agreement
  • Registration card
  • FlukeView® Forms installation guide
  • USB-IR cable installation guide
On Request
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