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Fluke 1555/1550C Insulation Resistance Testers

Fluke 1555/1550C Insulation Resistance Testers
Fluke 1555/1550C Insulation Resistance Testers
Fluke 1555/1550C Insulation Resistance Testers
Fluke 1555/1550C Insulation Resistance Testers
Fluke 1555/1550C Insulation Resistance Testers

Digital insulation testing up to 10kV

The 1555 and redesigned Fluke 1550C insulation resistance testers, offer digital insulation testing up to 10kV, making them ideal for testing a wide range of high voltage equipment including switch gear, 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 1555 and 1550C are perfect tools for preventative or predictive maintenance programs designed to identify potential equipment failures before they occur.

Features and benefits:

  • Test voltages up to 10 kV provides solutions for all applications
  • CAT III 1000 V, CAT IV 600 V safety rating
  • Voltage breakdown detection alerts the user that 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 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 2TΩ
  • 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 (dc)

Accuracy (± reading)

250 V < 200 kΩ
200 kΩ to 5 GΩ
5 GΩ to 50 GΩ
> 50 GΩ
unspecified
5 %
20 %
unspecified
500 V   200 kΩ
200 kΩ to 10 GΩ
10 GΩ to 100 GΩ
> 100 GΩ
unspecified
5 %
20 %
unspecified
1000 V  < 200 kΩ
200 kΩ to 20 GΩ
20 GΩ to 200 GΩ
> 200 GΩ
unspecified
5 %
20 %
unspecified
2500 V  < 200 kΩ
200 kΩ to 50 GΩ
50 GΩ to 500 GΩ
> 500 GΩ
unspecified
5 %
20 %
unspecified
5000 V  < 200 kΩ
200 kΩ to 100 GΩ
100 GΩ to 1 TΩ
> 1 TΩ
unspecified
5 %
20 %
unspecified
10000 V
(1555 only)
 < 200 kΩ
200 kΩ to 200 GΩ
10 GΩ to 2 TΩ
> 2 TΩ
unspecified
5 %
20 %
unspecified
Bar graph range 0 to 1 TΩ 
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 uF to 15.00 μF

Accuracy: ± (15 % rdg + 0.03 μF)

Timer

Range: 0 to 99 minutes

Resolution Accuracy:
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)


General specifications

Display 75 mm x 105 mm
Power 12 V lead-acid rechargeable battery, Yuasa NP2.8-12
Charger Input (AC) 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 170 mm x 242 mm x 330 mm (6.7 in x 9.5 in x 13 in)
Weight 3.6 kg (7.94 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
Safety compliance CAT III 1000 V, CAT IV 600 V
Pollution degree 2

Model NameDescriptionPrice List
10 KV INSULATION TESTER KIT 10 KV INSULATION TESTER KIT On Request
10 KV INSULATION TESTER 10 KV INSULATION TESTER On Request
5 KV INSULATION TESTER KIT 5 KV INSULATION TESTER KIT On Request
5 KV INSULATION TESTER 5 KV INSULATION TESTER On Request
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