Technical Data
Fluke 1555 and
1550C Insulation
Resistance Testers
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 pre-
ventative or predictive maintenance programs designed to identify
potential equipment failures before they occur.
Features include:
• Test voltages to up 10 kV provides solutions for all applications
• 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 2TΩ
• Timer settings up to 99 minutes for timed tests
• 3-year warranty
Digital insulation testing
up to 10 kV
The new Fluke 1555 and redesigned Fluke
1550C insulation resistance testers, offer digital
insulation testing up to 10 kV, making them
ideal for testing a wide range of high voltage
equipment including switchgear, motors,
generators and cables.
2 Fluke Corporation Fluke 1555 and 1550C Insulation Resistance Testers
Fluke Corporation
PO Box 9090, Everett, WA USA 98206
Fluke Europe B.V.
PO Box 1186, 5602 BD
Eindhoven, The Netherlands
For more information call:
In the U.S.A. (800) 443-5853 or
Fax (425) 446-5116
In Europe/M-East/Africa +31 (0) 40 2675 200 or
Fax +31 (0) 40 2675 222
In Canada (800)-36-FLUKE or
Fax (905) 890-6866
From other countries +1 (425) 446-5500 or
Fax +1 (425) 446-5116
Web access: http://www.fluke.com
©2005-2010 Fluke Corporation.
Specifications subject to change without notice.
Printed in U.S.A. 3/2010 1629685F D-EN-N
Modification of this document is not permitted
without written permission from Fluke Corporation.
Fluke. Keeping your world
up and running.®
Ordering
information
1550C 5 kV Insulation Tester
1555 10 kV Insulation Tester
1550C/Kit 5 kV Insulation Tester Kit
1555/Kit 10 kV Insulation Tester Kit
Optional accessories
TL1550EXT 25 foot extended
test lead set
Included accessories
Test Cables with Alligator Clips
(red, black, green)
Infrared adapter with interface cable
FlukeView Forms Basic CD-ROM
AC Power Cord
Soft Carrying Case (base models only)
English Manual
Users Manual on CD-ROM
Quick Reference Card
Software License Agreement
Registration Card
FlukeView Forms Installation Guide
USB-IR Cable Installation Guide
IP67 Hard Case (kit only)
Certificate of Calibration (kit only)
Ruggedized Alligator Clips
(kit and 1555 only)
Software specifications
Fluke ViewForms basic software
requires a PC running Windows 2000,
Windows XP and Windows Vista.
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) Range 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
200 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
Range Accuracy
Leakage current
measurement
1 nA to 2 mA ± (5 % + 2 nA)
Capacitance measurement 0.01 uF to 15.00 μF ± (15 % rdg + 0.03 μF)
Timer Range Resolution
0 to 99 minutes Setting: 1 minute
Indication: 1 second
Live circuit warning Warning range Voltage accuracy
30 V to 660 V ac/dc, 50/60 Hz ± (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) 85 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
Safety compliance EN 61010, EN 61557 Parts 1 and 2, IEC 61010-1,
CAT III 1000 V, CAT IV 600 V
Polution degree 2
