TB 9-6625-199-24
APPENDIX B
PERFORMANCE TABLES
Beckman Instruments, Model 320B
Table B-66. Calibration Description.
Test instrument parameters
Performance specifications
DC VOLTAGE
Range: 0 to 1500 V dc
Accuracy: (0.1% rdg + 1 dgt)
AC VOLTAGE
Range: 0 to 1000 V ac
Accuracy: 200 mV ac, 2 V ac, 20 V ac rngs: 45 Hz to 2 kHz,
(0.75% rdg + 3 dgts); 2 kHz to 5 kHz, (1.5% rdg + 5 dgts);
200 V ac rng: 45 to 1 kHz, (0.75% + 3 dgts);
1000 V ac rng: 45 to 500 Hz, (0.75% rdg + 3 dgts);
1000 V ac rng: 500 to 1000 Hz, (1.5% rdg + 5 dgts)
DC CURRENT
Range: 0 to 10 A dc
Accuracy: 0 to 2 A dc rngs, (0.35% rdg + 1 dgt);
10 A dc rng, (1.5% rdg + 1 dgt)
AC CURRENT
Range: 0 to 10 A ac
Accuracy: 0 to 2 A ac rngs @ 45 Hz to 2 kHz, (0.9% rdg + 3 dgts);
10 A ac rng @ 45 to 400 Hz, (1.5% rdg + 3 dgts)
Range: 0 to 20 MΩ
Accuracy: 200 Ω to 2 MΩ rngs, (0.2% rdg + 1 dgt);
20 MΩ rng, (1% rdg + 1 dgt)
Table B-67. DC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V dc)
(V dc)
(V dc)
Min
Max
190 m
200 m
189.7 m
190.3 m
1.9
2
1.897
1.903
5
20
4.98
5.02
-5
20
-5.02
-4.98
10
20
9.98
10.02
-10
20
-10.02
-9.98
15
20
14.97
15.03
-15
20
-15.03
-14.97
19
20
18.97
19.03
-19
20
-19.03
-18.97
190
200
189.7
190.3
1000
1500
998
1002
B-26
