Fluke 1537-II - Page 34

31
Insulation Tester
Electrical Specications
Table 12. V ac / V dc / Resistance Measurement (1537/1537-II Only)
Function Range Resolution
Accuracy
±(% reading + Digits)
V ac 0 V to 600.0 V 0.1 V
±(2 % +10)
(45 Hz to 500 Hz)
V dc 0 V to 600.0 V 0.1 V ±(2 % +10)
Resistance
0 Ω to 600.0 Ω 0.1 Ω
±(2 % +10)600 Ω to 6000 Ω 1 Ω
6.00 kΩ to 60.00 kΩ 0.01 kΩ
Table 13. Operating Ranges and Uncertainties per EN 61557
Function Display Range
EN 61557
Measurement
Range Operating
Uncertainty
±(% reading + Digits)
Nominal Values
V
EN 61557- 1
[1]
0 V ac to 600 V ac
45 Hz to 500 Hz
0 V ac to 600 V ac
±(2 % +10 digits)
UN = 230/400 V ac
f = 50/60 Hz
RISO
EN 61557-2
0 kΩ to 500 GΩ
200 kΩ to 500 GΩ
±20 %
UN = 250 / 500 /
1000 / 2500 V dc
IN = 1.0 mA
[1]
1537/1537-II only
Table 14. Operating Uncertainties per EN 61557
Parameter Specication Typical Max
[1]
Intrinsic
uncertainty
IEC 61557-2
A, Reference conditions
1.63 % 3.68 %
Position
IEC 61557-2
E1, Reference Conditions ±90 °
2.29 % 5.00 %
Supply Voltage
IEC 61557-2
E2, At low battery voltage
stated by manufacture
2.80 % 6.09 %
Temperature
IEC 61557-2
E3, -10 °C and 50 °C
3.36 % 9.83 %
Operating
Uncertainty
IEC 61557-2
B, ≤30 %
7.30 % 18.17 %
[1]
Condence level: 95 %