METREL MD 9240 - Page 20

MD 9240 True RMS Power Clamp Meter Specification
20
400A range: > 40A
1000A range: > 400A
600V range: > 30V
RANGE
Accuracy
1)
0.10 ~ 0.99
F ~ 21st
22nd ~ 51st
3d
5d
Total Power Factor (PF)
1)
Specified accuracy @ ACA fundamental > 2A ; ACV fundamental > 50V
Power
RANGE
0 ~ 600.0kVA
Accuracy
1) 2)
F ~ 10th
11th ~ 46th
47th ~ 51st
@ PF = 0.99 ~ 0.1
2.0%+6d
3.5%+6d
5.5%+6d
RANGE
0 ~ 600.0kW / kVAR
Accuracy
1) 3)
F ~ 10th
11th ~ 25th
26th ~ 46th
47th ~ 51st
@ PF = 0.99 ~ 0.70
2.0%+6d
3.5%+6d
4.5%+6d
10%+6d
@ PF = 0.70 ~ 0.50
3.0%+6d
@ PF = 0.50 ~ 0.30
4.5%+6d
@ PF = 0.30 ~ 0.20
10%+6d
15%+6d
1)
Specified accuracy is for ACA clamp measurement at the center of jaws. When the
conductor is not positioned at the jaw center, position errors introduced are:
Add 1% to specified accuracy for ACA measurements made WITHIN jaw marking lines
(away from jaw opening)
Accuracy is not specified for ACA measurement made BEYOND jaw marking lines
(toward jaws opening)
2)
Add 1% to specified accuracy @ ACA fundamental < 5A or ACV fundamental < 90V.
Accuracy is not specified @ ACA fundamental < 1A or ACV fundamental < 30V
3)
Add 1% to specified accuracy @ ACA fundamental < 5A or ACV fundamental < 90V.
Accuracy is not specified @ ACA fundamental < 2A or ACV fundamental < 50V
A-lags
1)
Indication:
“A-lags” LCD annunciator turns on to indicate an inductive circuit, or Current A lags
Voltage V (i.e., phase-shift angleθ is “+”).
1)
A-lags Indication is specified at 50/60Hz fundamental without harmonics, and at ACV >
90V, ACA > 9A, & PF < 0.95