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Fluke 1535/1537 2500V Insulation Resistance Meter (Digital High-Voltage Megohmmeter)

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  • Fluke 1535 / 1537 2500V high voltage insulation tester
  • Fluke 1535 / 1537 2500V high voltage insulation tester
  • Fluke 1535 / 1537 2500V high voltage insulation tester
  • Fluke 1535 / 1537 2500V high voltage insulation tester

Key features

  • Up to 500 GΩ insulation resistance measurement range
  • Fast-measurement design, faster & stable resistance reading, higher efficiency
  • Automatic calculation of polarization index (PI) and dielectric absorption ratio (DAR)
  • Low power design meets the requirements of high-intensity work: up to 1300 times of 2500 V measurement, and up to 6500 times of 250 V measurements*
  • High-safety design with dangerous voltage alarm function, and complies with CAT IV 600V standard and China power industry specifications DLT845
  • The new high-reliability design, all specifications are met even under the environment of 50 °C temperature and 80% RH; all probes and corresponding ports are tested for 30,000 mating test
Fluke 1537 adds the following features based-on the above features:
  • AC/DC voltage and resistance measurement
  • Short-circuit current >5 mA, faster and more accurate
  • Fine-tunable test voltage: 250 V to 2500 V,100 V step
  • Automatic calculation of dielectric discharge rate (DD), find insulation problems that are not easily detectable in multilayer insulation
  • User-defined label, timing test, measurement results storage
  • Download data with provided PC software
  • 3 years warranty

Product overview: Fluke 1535/1537 2500V Insulation Resistance Meter (Digital High-Voltage Megohmmeter)

Fluke 1535 features:
  • Up to 500 GΩ insulation resistance measurement range
  • Fast-measurement design, faster & stable resistance reading, higher efficiency
  • Automatic calculation of polarization index (PI) and dielectric absorption ratio (DAR)
  • Low power design meets the requirements of high-intensity work: up to 1300 times of 2500 V measurement, and up to 6500 times of 250 V measurements*
  • High-safety design with dangerous voltage alarm function, and complies with CAT IV 600V standard and China power industry specifications DLT845
  • The new high-reliability design, all specifications are met even under the environment of 50 °C temperature and 80% RH; all probes and corresponding ports are tested for 30,000 mating test
Fluke 1537 adds the following features based-on the above features:
  • AC/DC voltage and resistance measurement
  • Short-circuit current >5 mA, faster and more accurate
  • Fine-tunable test voltage: 250 V to 2500 V,100 V step/li>
  • Step mode with linear increment test voltage (100 V/s), breakdown voltage indication
  • Automatic calculation of dielectric discharge rate (DD), find insulation problems that are not easily detectable in multilayer insulation
  • User-defined label, timing test, measurement results storage
  • Download data with provided PC software
  • 3 years warranty

Specifications: Fluke 1535/1537 2500V Insulation Resistance Meter (Digital High-Voltage Megohmmeter)

General Specifications 
Display73.5 mm x 104 mm
Battery8 AA alkaline cells, IEC LR6
Dimensions (H x W x L)184 mm x 211 mm x 93 mm 
Weight1.3 kg
Temperature
Operating temperature-10 °C  to +50 °C
 Storage temperature-20 °C to +60 °C 
Operating humidity Non-condensing (<10 °C)
 ≤80 % RH (10 °C to 30 °C)
 ≤50 % RH (30 °C to 50 °C) 
Altitude
Operating altitude2000 m 
Storage altitude12000 m
Overvoltage categoryCAT IV 600 V 
Safety 
General IEC 61010-1, pollution degree 2
 IEC 61010-2-033:CAT IV 600 V  
 IEC 61557-1 
Insulation resistance measurementIEC 61557-2
Effectiveness of protective measuresIEC 61557-16
IP Rating IEC 60529 IP40
Electromagnetic Compatibility (EMC)
InternationalIEC 61326-1: Electromagnetic environment for portable equipments
 IEC 61326-2-2 CISPR 11: Group 1, Class A

Group 1: Equipment has intentionally generated and/or uses conductively-coupled radio frequency energy that is necessary for the internal function of the equipment itself.

Class A: Equipment is suitable for use in all establishments other than domestic and those directly connected to a low-voltage power supply network that supplies buildings used for domestic purposes. There may be potential difficulties in ensuring electromagnetic compatibility in other environments due to conducted and radiated disturbances.
Caution: This equipment is not intended for use in residential environments and may not provide adequate protection to radio reception in such environments.

Electrical Specifications
The meter's accuracy is specified for one year after calibration at operating temperatures of 10°C to 30°C. For operating temperatures outside the range (-10°C to +10°C and +30°C to +50°C), add ± 0.25% per °C, except on the 20% bands, add ± 1% per °C.
Insulation resistance testing
Test voltageRangeResolutionAccuracy
250 V <200 kΩ Unspecified Unspecified
200 kΩ to 500 kΩ 1 kΩ 0.05
0.50 MΩ to 5.00 MΩ  10 kΩ 0.05
5.0 MΩ to 50.0 MΩ 100 kΩ 0.05
50 MΩ to 500 MΩ 1 MΩ 0.05
0.50 GΩ to 5.00 GΩ 10 MΩ 0.05
5.0 GΩ to 50.0 GΩ 500 MΩ 0.2
>50 GΩ Unspecified Unspecified 
500 V <200 kΩ Unspecified Unspecified 
200 kΩ to 500 kΩ 1 kΩ 0.05
0.50 MΩ to 5.00 MΩ  10 kΩ 0.05
5.0 MΩ to 50.0 MΩ 100 kΩ 0.05
50 MΩ to 500 MΩ 1 MΩ 0.05
0.50 GΩ to 5.00 GΩ 10 MΩ 0.05
5.0 GΩ to 10.0 GΩ 100 MΩ 0.05
10.0 GΩ to 50.0 GΩ 500 MΩ 0.2
50 GΩ to 100 GΩ 5 GΩ 0.2
>100 GΩ Unspecified Unspecified 
1000 V <200 kΩ Unspecified Unspecified 
200 kΩ to 500 kΩ 1 kΩ 0.05
0.50 MΩ to 5.00 MΩ  10 kΩ 0.05
5.0 MΩ to 50.0 MΩ 100 kΩ 0.05
50 MΩ to 500 MΩ 1 MΩ 0.05
0.50 GΩ to 5.00 GΩ 10 MΩ 0.05
5.0 GΩ to 0.0 GΩ 100 MΩ 0.05
20.0 GΩ to 50.0 GΩ 500 MΩ 0.2
50 GΩ to 200 GΩ 5 GΩ 0.2
>200 GΩ Unspecified Unspecified 
2500 V <200 kΩ Unspecified Unspecified 
200 kΩ to 500 kΩ 1 kΩ 0.05
0.50 MΩ to 5.00 MΩ  10 kΩ 0.05
5.0 MΩ to 50.0 MΩ 100 kΩ 0.05
50 MΩ to 500 MΩ 1 MΩ 0.05
0.50 GΩ to 5.00 GΩ 10 MΩ 0.05
5.0 GΩ to 50.0 GΩ 100 MΩ 0.05
50 GΩ to 500 GΩ 5 GΩ 0.2
>500 GΩ Unspecified Unspecified 

Bar graph range: 0 Ω to 1 TΩ Insulation test voltage accuracy: -0 %, +10 % @ 1 mA load current Charging rate for capacitive load: 5 s/μF Discharging rate for capacitive load: 1.5 s/μF

 RangeAccuracy
Leakage current measurement1 nA to 2 mA ±(20 % + 2 nA) 
Capacitance measurement 0.01 μF to 2.00 μF ±(15 % rdg + 0.03 μF)
Test voltage for insulation resistance250 V to 2500 V ±(3 % + 3 V) 
Warning for energized circuitWarning range
>30 V 
Timer (F1537 only)RangeResolution
0 to 99 minSetting: 1 min
Alert: 1 s
Short circuit current
F1535>2mA
F1537>5mA
ACV/DCV/resistance measurement (1537 only)
FunctionRangeResolutionAccuracy
±(% rdg + dgt)
VAC0 V to 600.0 V0.1 V±(2 % +10)
(45 Hz to 500 Hz)
VDC0 V to 600.0 V0.1 V±(2 % +10)
Resistance0Ω to 600.0Ω0.1Ω±(2 % +10)
600Ω to 6000Ω
6.00 kΩ to 60.00kΩ10Ω

Models: Fluke 1535/1537 2500V Insulation Resistance Meter (Digital High-Voltage Megohmmeter)

Fluke1535/1537 2500V
Buy it
  • Fluke 1537 2500V Insulation Resistance Meter Test leads with alligator clip (red, black, green)
  • Probe (red, black)
  • Soft carrying case
  • USB cable(Fluke 1537 only)
  • PC software (download from the Fluke Website)(Fluke 1537 only)

Reviews: Fluke 1535/1537 2500V Insulation Resistance Meter (Digital High-Voltage Megohmmeter)

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