Fluke 1550C User Manual

1550C/1555
Users Manual
20
Insulation Test
XW Warning
To avoid possible electric shock or personal injury:
• Be aware that measuring insulation resistance
requires the application of potentially dangerous
voltages to the circuit. This may include exposed
bonded metalwork.
• Remove all power from the circuit under test and
discharge circuit capacitance before testing a
circuit with the Tester.
• Before proceeding, ensure that the installation is
wired correctly and no personnel are endangered
by any tests.
• First connect the test leads to the Tester inputs
before you make connection to the circuit under
test.
PI/DAR Limits:
• Cap. Mdx > 1 μF and Res. Max > 100 Me
• Res. Min < 200 k e
• Current min < 50 μA
• If one of the limits is beyond, the Tester will display UNSPEC.
To perform an insulation test:
1. With the Tester turned on, set the available measurement options to meet
your test requirements. These include:
• Test Voltage – Set range: 250 V to 10,000 V (50 V/100 V steps)
• Ramp Test – Toggle on or off
• Time Limit – No limit or from 1 to 99 minutes
2. Connect the probes to the circuit under test.

Fluke 1550C Specifications

General

Display type	-
Housing color	Grey, Yellow
Maximum voltage	5000 V
AC voltage range	250 - 5000 V
Operating altitude	0 - 2000 m
Overload protection	Yes
Storage temperature (T-T)	-20 - 65 °C
Operating temperature (T-T)	-20 - 50 °C
Operating relative humidity (H-H)	0 - 80 %
International Protection (IP) code	IP40
Battery technology	Sealed Lead Acid (VRLA)
Number of batteries supported	1

Weight and Dimensions

Depth	277 mm
Width	269 mm
Height	160 mm
Weight	3700 g