Appendix A: Specifications
CDM250 User Manual
13
Table 6: AC Volts Measurement Specifications
Manual Ranging
Average responding, calibrated to read RMS value of sine wave
Range
Resolution
Accuracy
Input Impedance
200 mV
100
V
±
(1.0% of rdg
4 igits
10 M
100 pF
2 V
1 mV
+ 4 digits)
4
H
20 V
10 mV
45–500 Hz
200 V
100 mV
500 V
1 V
Response Time
8 s
Overload Protection
200 mV range: 500 VDC, 350 VAC
2 V to 500 V ranges: 500 VDC, 500 VAC
Table 7: Direct Current Measurement Specifications
Manual Ranging
Range
Resolution
Accuracy
Loading
Error
Input
Impedance
200
A
0.1
A
±
(1.0% of rdg
1 igit
300 mV
ma im m
1 k
2 mA
1
A
1
o
g
+ 1 digit)
maximum
100
20 mA
10
A
10
200 mA
100
A
1
2000 mA
1 mA
±
(1.0% of rdg
3 igits
1.1 V
ma im m
0.1
10 A
10 mA
1
o
g
+ 3 digits)
maximum
.01
Response Time
3 s
Overload Protection
2 A range: 2 A, 250 V, fast-blow fuse
10 A range: None