TB 9-6625-199-24
APPENDIX B
PERFORMANCE TABLES
Amprobe Instruments, Model 33XR-A
Test instrument parameters
Performance specifications
DC VOLTAGE
Range: 0 to 1000 V dc
Accuracy: (0.7% rdg + 1 dgt)
AC VOLTAGE
Range: 0 to 750 V ac, 45 to 500 Hz
Accuracy: (1.5% rdg + 4 dgts);
(2.0% rdg + 4 dgts), 200 Hz to 500 Hz on 4 V range
PEAK HOLD
Accuracy: 40 to 750 V ac rngs, (3% rdg + 60 dgts);
400 mV ac and 4 V ac rngs, unspecified
DC CURRENT
Range: 0 to 10 A dc
Accuracy: (1.0% rdg + 1 dgt), 400 μA dc to 300 mA dc ranges;
(2.0% rdg + 3 dgts), 10 A dc range
AC CURRENT
Range: 0 to 10 A ac, 45 to 500 Hz
Accuracy: (1.5% rdg + 4 dgts), 400 μA ac to 300 mA ac ranges;
(2.5% rdg + 4 dgts), 10 A ac range
Accuracy: 400 μA ac to 10 A ac rngs, (3% rdg + 60 dgts)
PEAK HOLD
Range: 0 to 4 MΩ
Accuracy: (1.0% rdg + 4 dgts), 400 Ω and 40 kΩ ranges;
(1.2% rdg + 4 dgts), 4 MΩ range
Range: 0 to 4000 μF
Accuracy: (5.0% rdg + 10 dgts), 4 μF range;
(5.0% rdg + 5 dgts), 40 μF and 400 μF ranges;
(5.0% rdg + 15 dgts), 4000 μF range
Range: 0 to 1 MHz (auto ranging)
Accuracy: (0.1% rdg + 3 dgts)
Sensitivity: 10 Hz to 4 MHz, >1.5 V rms;
4 to 40 MHz, >2 V rms to <5 V rms
Range: -20 to 1000 C1, -4 F to 1832 F1
TEMPERATURE
Accuracy: (2.0 % of rdg +4 C), -20 C to 10 C;
(1.0 % of rdg +3 C), 10 C to 200 C;
(3.0 % of rdg + 2 C), 200 C to 1000 C;
(2.0 % of rdg +8 F), -4 F to 50 F;
(1.0 % of rdg +6 F), 50 F to 400 F;
(3.0 % of rdg + 4 F), 400 F to 1832 F
Only checked to 500 C/900 F due to standards limitations.
1
Table B-79. DC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V dc)
(V dc)
(V dc)
Min
Max
360 m
400 m
357.4 m
362.6 m
3.6
4
3.574
3.626
12
40
11.91
12.09
28
40
27.79
28.21
36
40
35.74
36.26
-36
40
-36.26
-35.74
360
400
357.4
362.6
900
1000
893
907
B-32