Datasheet
4 Fluke Corporation 1660 Series Multifunction Installation Testers
Test Voltage Insulation Resistance Range Resolution Test Current
50 V 20 M/50 M 0.01 M/0.1 M 1 mA @ 50 k
100 V 20 M/100 M 0.01 M/0.1 M 1 mA @ 100 k
250 V 20 M/200 M 0.01 M/0.1 M 1 mA @ 250 k
500 V 20 M/200 M/500 M 0.01 M/0.1 M/1 M 1 mA @ 500 k
1000 V 20 M/200 M/1000 M 0.01 M/0.1 M/1 M 1 mA @ 1 M
Insulation pretest
Insulation safety pretest Requires to connect the Tester to L, N and PE.
Loop and line impedance (Z
I
)
Range Resolution
10 (Hi current m mode)/20 /200 /2000 1 m/ 0.01 / 0.1 /1
Prospective earth fault current, PSC test
Range Resolution
1000 A/10 kA (50 kA) 1 A/0.1 kA
Computation: Prospective Earth Fault Current (PEFC) or Prospective Short Circuit Current (PSC) determined by dividing measured mains
voltage by measured loop (L-PE) resistance or line (L-N) resistance, respectively.
RCD testing, RCD types tested
RCD Type Model 1662 Model 1663/1664 FC
AC
1
G
2
, S
3
A/F
4
, AC
1
, G
2
, S
3
A/F, AC, B/B+
5
, G, S
1
Responds to AC.
2
General, no delay.
3
Time delay.
4
Responds to pulsed signal.
5
Responds to smooth DC signal.
RCD trip time test (ΔT)
Current Settings
1
Multiplier
Measurement Range
RCD Type G RCD Type S
10-30-100-300-500-1000 mA – VAR x ½, x 1 310 ms 510 ms
10-30-100 mA x 5 50 ms 160 ms
1
1000 mA type AC only. 700 mA maximum type A in VAR mode, VAR mode not available for type B.
RCD trip current measurement/ramp test (Index
ΔN
)
Current Range Step Size
Dwell Time
Measurement AccuracyType G Type S
30 % to 110 % of RCD rated current
1
10 % of index I
N
2
300 ms/step 500 ms/step ± 5 %
Notes
30 % to 210 % for Type A I
N
= 10mA
20 % to 210 % for Type B
Specified trip current ranges (EN 61008-1):
50 % to 100 % for Type AC
35 % to 140 % for Type A (>10 mA)
35 % to 200 % for Type A (≤10 mA)
50 % to 200 % for Type B
1
30 % to 150 % for Type A I
N
> 10 mA.
2
5 % for Type B
Earth resistance test (RE) Model 1664 FC and 1663 only
Range Resolution Frequency Output Voltage
200 /2000 0.1 /1 128 Hz 25 V
Phase sequence indicaton
Icon Range Display
Phase Sequence indicator is active 100 to 500 V “1-2-3”: or “3-2-1”