19
ACA Current (Clamp-on)
RANGE
Accuracy
1) 2)
50Hz / 60Hz
40.00A, 400.0A,
1000A (600A for model 357)
1.0% + 5d
45Hz ~500Hz
40.00A, 400.0A
2.0% + 5d
1000A (600A for model 357)
2.5% + 5d
500Hz ~ 3.1kHz
40.00A, 400.0A
2.5% + 5d
1000A (600A for model 357)
3.0% + 5d
ACA AutoVA
TM
Threshold: 1A AC (40Hz ~ 500Hz only) nominal
Crest Factor:
model 157:
< 2.5 : 1 at full scale & < 5.0 : 1 at half scale for 40.00A & 400.0A ranges
< 1.4 : 1 at full scale & < 2.8 : 1 at half scale for 1000A range
model 357:
< 3 : 1 at full scale & < 6 : 1 at half scale for 40.00A, 400.0A & 600A ranges
1)
Induced error from adjacent current-carrying conductor: < 0.06A/A
2)
Specified accuracy is from 1% to 100% of range and for measurements made at the
jaw center. When the conductor is not positioned at the jaw center, position errors
introduced are:
Add 1% to specified accuracy for measurements made WITHIN jaw marking lines
(away from jaw opening)
Add 4% to specified accuracy for measurements made BEYOND jaw marking lines
(toward jaws opening)
PEAK-rms HOLD (ACA & ACV only)
Response: 65ms to >90%
