Fluke 1550C Calibration Manual

Insulation Tester
Principle of Measurement and Resistance
21
Range Accuracy
Leakage Current
Measurement
1 nA to 2 mA ±(20 % + 2 nA)
Capacitive
Measurement
0.01 μF to 20.00 μF ±(15 % of reading + 0.03 μF)
Range Resolution
Timer
0 to 99 minutes
Setting: 1 minute
Indication: 1 second
Warning Range Voltage Accuracy
Live circuit warning
30 V to 1100 V ac/dc, 50/60 Hz
±(15 % + 2 V)
Short circuit current > 1 mA and < 2 mA
Principle of Measurement and Resistance
The product measures insulation parameters and displays the results using with the
following formulas.
Ohm’s Law
Capacitance
(charge)
PI
(Polarization Index)
DAR
(Dielectric absorption ratio)
I
V
R =
V
Q
C =
min1
min10
×
×
=
R
R
PI
sR
R
DAR
30
min1
×
×
=

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