| Battery Type |
AA |
| AC Voltage Measurement |
| Range |
500 volt |
| Resolution |
0.1 volt |
| Accuracy 45-66 Hz |
0.8 percent + 3 |
| Input Impedance |
360 kΩ |
| Overload Protection |
660 volt RMS |
| Continuity Testing (RLO) |
| Range (Autoranging) |
20/200/2000 Ω |
| Resolution |
0.01/0.1/1 Ω |
| Open Circuit Voltage |
>4 volt |
| Insulation Resistance Measurement (RISO) |
| Test Voltages |
50, 100, 250, 500, 1000 volt |
| The accuracy of Test Voltage (at rated test current) |
+10 percent, -0 percent |
| Test Voltage |
50 volt
100 volt
250 volt
500 volt
1000 volt |
| Insulation Resistance Range |
20/50 MΩ
20/100 MΩ
20/200 MΩ
20/200/500 MΩ
20/200/1000 MΩ |
| Resolution |
0.01/0.1 MΩ
0.01/0.1 MΩ
0.01/0.1 MΩ
0.01/0.1/1 MΩ
0.01/0.1/1 MΩ |
| Test Current |
1 mA at 50 kΩ
1 mA at 100 kΩ
1 mA at 250 kΩ
1 mA at 500 kΩ
1 mA at 1 MΩ |
| Loop and Line Impedance (ZI) |
| Range |
10/0.001 Ω/High Current mΩ Mode |
| Resolution |
0.01/0.1/1 Ω |
| Prospective Earth Fault Current, PSC Test |
| Range |
1000 Amps/10 kA (50 kA) |
| Resolution |
1 Amps/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 |
AC¹
G², S³ |
| Model 1663 |
A4, AC¹, G², S³ |
| Notes |
Responds to AC
General, no delay
Time delay
Responds to the pulsed signal
Responds to smooth DC signal |
| Tripping speed test (ΔT) |
| Current settings¹ |
10, 30, 100, 300, 500, 1000 mA – VAR
10-30-100 mA |
| Multiplier |
x ½, x 1
x 5 |
| Measurement Range |
RCD Type G |
310 ms
50 ms |
| RCD Type S |
510 ms
160 ms |
| Notes |
1000 mA Type AC only
700 mA maximum type A in VAR mode
VAR mode not available for type B |
| RCD/FI-Tripping Current Measurement/Ramp Test (IΔN) |
| Current Range |
30 percent to 110 percent of RCD Rated Current |
| Step Size |
10 percent of IΔN² |
| Dwell Time |
Type G |
300 ms/step |
| Type S |
500 ms/step |
| Measurement Accuracy |
±5% |
| Specified Trip Current Ranges (EN 61008-1) |
50 to 100 percent for Type AC
35 to 140 percent for Type A (>10 mA)
35 to 200 percent for Type A (≤10 mA)
50 to 200 percent for Type B
5 percent for Type B |
| Notes |
30 to 150 percent for Type A IΔN > 10 mA
30 to 210 percent for Type A IΔN = 10 mA
20 to 210 percent for Type B |
| Earth Resistance Test (RE) |
| Range |
200/2000 Ω |
| Resolution |
0.1/1Ω |
| Frequency |
128 Hz |
| Output Voltage |
25 volt |
| Icon |
Phase Sequence Indicator is Active |
| Size |
100 x 250 x 125 mm |
| Weight |
1.3 Kg |