TB 9-6625-199-24
PERFORMANCE TABLES
Thomas Industries, Model 109
Table B-1. Calibration Description.
Test instrument parameters
Performance specifications
DC VOLTAGE
Range: 0 to 1500 V dc
Accuracy: (0.1% + 2 dgts)
AC VOLTAGE
Range: 0 to 1000 V ac
Accuracy: 200 mV to 200 V, 45 Hz to 500 Hz, (0.8% rdg + 4 dgts);
200 mV to 200 V, 500 Hz to 2 kHz, (1.5% rdg + 5 dgts);
1000 V, 50 to 60 Hz, (0.8% rdg + 4 dgts);
1000 V, 60 to 500 Hz, (1.5% rdg + 5 dgts)
DC CURRENT
Range: 0 to 2 A dc
Accuracy: 0 to 200 mA, (0.5% rdg + 2 dgts);
200 mA to 2 A, (1.0% rdg + 2 dgts)
AC CURRENT
Range: 0 to 2 A ac
Accuracy: 0 to 200 mA, 45 Hz to 1 kHz, (0.8% rdg + 4 dgts);
200 mA to 2 A, 45 Hz to 1 kHz, (1.2% rdg + 4 dgts)
Range: 0 to 20 MΩ
Accuracy: 0 to 200 Ω, (0.5% rdg + 4 dgts);
200 Ω to 200 kΩ, (0.3% rdg + 2 dgts);
200 kΩ to 2 MΩ, (1.0% rdg + 4 dgts);
2 MΩ to 20 MΩ, (2.0% rdg + 4 dgts)
Table B-2. DC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V dc)
(V dc)
(V dc)
Min
Max
180 m
200 m
179.6
m
180.4
m
1.8
2
1.796
1.804
180
200
179.6
180.4
1350
1500
1347
1353
Table B-3. AC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V ac)
(V ac)
(V ac)
Min
Max
180 m @ 60 Hz
200 m
178.2 m
181.8 m
180 m @ 1 kHz
200 m
176.8 m
183.2 m
1.8 @ 60 Hz
2
1.782
1.818
1.8 @ 1 kHz
2
1.768
1.832
18 @ 60 Hz
20
17.82
18.18
18 @ 1 kHz
20
17.68
18.32
180 @ 60 Hz
200
178.2
181.8
180 @ 1 kHz
200
176.8
183.2
900 @ 60 Hz
1000
889
911
900 @ 500 Hz
1000
881
919
B-1
