TB 9-6625-174-24
APPENDIX B
PERFORMANCE TABLES
B&K Precision, Model 313A
Table B-9. Calibration Description.
Test instrument parameters
Performance specifications
DC VOLTAGE
Range: 0 to 600 V dc
Accuracy: (1.0% rdg + 2 dgts)
AC VOLTAGE
Range: 0 to 600 V ac
Accuracy: 50 to 500 Hz, (1.5% rdg + 5 dgts)
DC CURRENT
Range: 0 to 600 A dc
Accuracy: (2.5% rdg + 10 dgts)
AC CURRENT
Range: 0 to 600 A ac
Accuracy: 50 to 500 Hz, (2.0% rdg + 10 dgts)
Range: 0 to 1000 Ω
Accuracy: (1.0% rdg + 3 dgts)
Table B-10. DC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V dc)
(V dc)
(V dc)
Min
Max
180
600
178.0
182.0
420
600
415.6
424.4
540
600
534.4
545.6
-540
600
-545.6
-534.4
Table B-11. AC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V ac)
(V ac)
(V ac)
Min
Max
540 @ 60 Hz
600
531.4
548.6
540 @ 400 Hz
600
531.4
548.6
Table B-12. DC Current (≤1000 A) (w/50-Turn Coil).
Calibrator output
Ammeter calibrator
Test instrument
Applied
Range
Range
Limits (A ac)
1
(V dc)
(A dc)
(A dc)
Min
Max
1.08
20
600
525.5
554.5
Before measurement, momentarily press TI ZERO button to zero adjust display.
1
Table B-13. AC Current (≤1000 A) (w/50-Turn Coil).
Calibrator output
Ammeter calibrator
Test instrument
Applied
Range
Range
Limits (A ac)
(V ac)
(A ac)
(A ac)
Min
Max
1.08 @ 60 Hz
20
600
528.2
551.8
1.08 @ 400 Hz
20
600
528.2
551.8
Table B-14. Resistance.
Calibrator output
Test instrument
Limits (%/Ω)
Applied
Range
(Ω)
(Ω)
Min
Max
-1.158% (187.8 Ω)
+1.158% (192.2 Ω)
190
1000
B-3
