TB 9-6625-199-24
APPENDIX B
PERFORMANCE TABLES
Beckman Instruments, Model DM23
Table B-121. Calibration Description.
Test instrument parameters
Performance specifications
DC VOLTAGE
Range: 0 to 1000 V dc
Accuracy: (0.8% rdg + 1 dgt)
AC VOLTAGE
Range: 0 to 750 V ac
Accuracy: 400 Hz, (1.2% rdg + 10 dgts)
DC CURRENT
Range: 0 to 10 A dc
Accuracy: (1.25% rdg + 1 dgt), except 10 A dc which is (2.5% rdg + 3 dgts)
AC CURRENT
Range: 0 to 10 A ac
Accuracy: (1.8% rdg + 4 dgts), except 10 A ac which is
(3.0% rdg + 4 dgts), 400 Hz only
Range: 0 to 2000 MΩ
Accuracy: (1.2% rdg + 4 dgts), 200 Ω rng;
(3.0% rdg + 4 dgts), 20 MΩ rng;
(5.0% rdg + 10 dgts), 2000 MΩ rng;
Other rngs, (1.2% rdg + 2 dgts)
Range: 0 to 20 μF
Accuracy: (3.0% rdg + 10 dgts)
Table B-122. DC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V dc)
(V dc)
(V dc)
Min
Max
190 m
200 m
188.4 m
191.6 m
1.9
2
1.884
1.916
10
20
9.92
10.08
-10
20
-10.08
-9.92
19
20
18.84
19.16
-19
20
-19.16
-18.84
190
200
188.4
191.6
900
1000
892
908
Table B-123. AC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V ac)
(V ac)
(V ac)
Min
Max
190 m @ 400 Hz
200 m
186.7 m
193.3 m
1.9 @ 400 Hz
2
1.867
1.933
19 @ 400 Hz
20
18.67
19.33
190 @ 400 Hz
200
186.7
193.3
700 @ 400 Hz
750
682
718
B-50
