Fluke 1555 1550C Insulation Tester

Fluke 1555 / Fluke 1550C Insulation Tester Features

• 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/analogue 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

Insulation resistance measurement

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

Capacitance measurement

Range: 0.01 µF to 15.00 µF

Timer

Range: 0 to 99 minutes

Live circuit warning

Warning Range: 30 V to 660 V ac/dc, 50/60 Hz

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 °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

CAT III 1000 V, CAT IV 600 V

Pollution degree

2