Fluke 1550C Calibration Manual

Insulation Tester
Performance Test Procedures
9
Charging Test
1. With the product switched off, connect a mains supply to the ac supply receptacle
and check that the UUT display shows Charging.
2. Disconnect the mains supply and check that the UUT turns off.
3. Turn the product on and see that all the battery symbol segments display as shown in
Figure 2.
Note
A fully-charged battery is indicated when the battery symbol shows all
segments. Recharge the battery as necessary to obtain all segments. A full
charge may require 12 hours.
Insulation Accuracy Test
Using the various resistances shown in Table 3, perform the UUT insulation accuracy
test. Push
 for 2 seconds to start or discontinue a test.
Notes
• For best results, allow for settling of up to 60 seconds when measuring
high-value resistances (100 G
Ω and above) and take care to avoid
stray currents. Perform the test on a conductive work surface that is
connected to the UUT’s GUARD terminal and the load GUARD
terminal.
• Motion/body capacitance can affect the stability of the reading at
higher resistances. When taking the measurements above 1 G
Ω , remain
as motionless as possible.

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