| Earth Resistance | ||||||||
| Models | ||||||||
| DISPLAY | ANALOG |
LCD |
LCD |
LCD |
LCD |
LCD |
DIGITAL |
DIGITAL |
| CURRENT SETTINGS | 10-50MA |
0-999 MAAC |
3-500MA |
3-500MA |
2-999MA |
1A AUTO |
1A |
999MA |
| TEMP PROTECTION | — |
√ |
√ |
√ |
√ |
√ |
— |
√ |
| POWER SOURCE | SELF |
BATTERY |
BATTERY |
BATTERY |
BATTERY |
BATTERY |
BATTERY |
BATTERY |
| OPERATION VOLTAGE | 110 ± 15% VAC |
110-450 VAC |
20-280 VAC |
120 VAC |
110-317 VAC L-E |
100-450 VAC L-E |
230/380/450 VAC |
110-317 VAC |
| TIMER RESOLUTION | MANUAL |
2MS |
2MS |
2MS |
2MS |
1MS |
10MS |
10MS |
| ACCESSORIES | √ |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
| DISCONNECTION TIME | — |
— |
— |
√ |
— |
√ |
PROGRAM |
√ |
| FREQUENCY L-E | — |
— |
— |
√ |
— |
— |
VOLT/CURRENT/TIME |
VOLT/CURRENT/TIME |
| TRIPPING PHASE ANGLE | — |
— |
— |
— |
— |
√ |
— |
√ |
 |
|
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