A 1322 / A 1422
Technical specifications
40
8.1.11 Insulation resistance (welding circuit to protective circuit) (acc. to IEC/ EN
60974-4)
Insulation W-PE readout:
Range Resolution Accuracy
0.000 M
0.500 M
0.001
M
(10 % of r 5 digits)
0.501 M
1.999 M
0.001
M
(5 % of r 3 digits)
2.00 M
19.99 M
0.01
M
20.0 M
199.9 M
0.1
M
Nominal voltage: .............. 500 V DC (- 0 %, + 10 %)
Measuring current: ........... min. 1 mA at 500 k
(500 V)
Short circuit current: ......... max. 2.0 mA
Pass levels [M
]: ............. 2.50, 5.00, 10.00, none
Test duration [s]: .............. 2, 3, 5, 10, 30, 60, 120, 180, none
Test terminals: ................. W1, W2 terminals shorted (A 1422) – test socket (A 1422:
16A-5p, 32A-5p or 16A-3p) (PE terminal)
8.1.12 Insulation resistance supply circuit to welding circuit (acc. to IEC/ EN
60974-4)
Insulation LN-W readout:
Range Resolution Accuracy
0.000 M
0.500 M
0.001
M
(10 % of r 5 digits)
0.501 M
1.999 M
0.001
M
(5 % of r 3 digits)
2.00 M
19.99 M
0.01
M
20.0 M
199.9 M
0.1
M
Nominal voltage: .............. 500 V DC (- 0 %, + 10 %)
Measuring current: ........... min. 1 mA at 500 k
(500 V)
Short circuit current: ......... max. 2.0 mA
Pass levels [M
]: ............. 5.00, 10.00, 20.00, none
Test duration [s]: .............. 2, 3, 5, 10, 30, 60, 120, 180, none
Test terminals: ................. Test socket (A 1422: 16A-5p, 32A-5p or 16A-3p) (L1, L2, L3,
N terminals shorted) – (W1, W2 terminals on A 1422 shorted)
8.1.13 Insulation resistance (supply circuit of class II equipment to accessible
surfaces) (acc. to IEC/ EN 60974-4)
Insulation LN-P readout:
Range Resolution Accuracy
0.000 M
0.500 M
0.001
M
(10 % of r 5 digits)
0.501 M
1.999 M
0.001
M
(5 % of r 3 digits)
2.00 M
19.99 M
0.01
M
