METREL MD 9240 - Page 19

MD 9240 True RMS Power Clamp Meter Specification
19
PEAK-rms HOLD (ACA & ACV only)
Response: 65ms to 90%
Ohms
RANGE
Accuracy
999.9
1.0% + 6d
Open Circuit Voltage : 0.4VDC typical
Audible Continuity Tester
Audible threshold: between 10 and 300.
Response time: 250s
ACA Current (Clamp-on)
RANGE
Accuracy
1) 2)
50Hz / 60Hz
40.00A, 400.0A, 1000A
1.0% + 5d
45Hz ~500Hz
40.00A, 400.0A
2.0% + 5d
1000A
2.5% + 5d
500Hz ~ 3.1kHz
40.00A, 400.0A
2.5% + 5d
1000A
3.0% + 5d
ACA AutoVA
TM
Threshold: 1A AC (40Hz ~ 500Hz only) nominal
Crest Factor:
< 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
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)
Temperature
RANGE
Accuracy
-50
o
C ~ 300
o
C
2.0% + 3
o
C
-58
o
F ~ 572
o
F
2.0% + 6
o
F
Type-K thermocouple range & accuracy not included
Add 3
o
C (or 6
o
F) to specified accuracy @ -20
o
C ~ -50
o
C (or @ -4
o
F ~ -58
o
F)
Frequency
RANGE
Accuracy
5.00Hz ~ 500.0Hz
0.5%+4d
Sensitivity (Sine RMS)
40A range: > 4A