User`s guide

Characteristics and Specifications 4
U2741A User’s Guide 69
300 VDC.
[3]
Additional error to be added as frequency more than 30 kHz and signal input less than 10% of range. 30 kHz to 100 kHz:
0.003% of full scale per kHz.
[4]
Input signal has to be more than 50 Vrms.
[1]
In manual range, the settling time is 2.6 seconds while in autorange, the first measurement accuracy is <1%.
[2]
Input protected with externally accessible 2 A, 250 V fast blown fuse.
Ta bl e 4 - 3 Temperature coefficient for voltage
Range Frequency (Hz)
20 ~ 45 45 ~ 10k 10k ~ 30k 30k ~ 100k
Tem p er atu r e
coefficient
100.000 mVrms,
1.00000 V,
10.0000 V,
100.000 V,
250.000 V
0.02 + 0.02 0.02 + 0.02 0.05 + 0.02 0.1 + 0.02
Ta bl e 4 - 4 AC accuracy for current
[1]
Function Range Burden
voltage/
Current shunt
Accuracy input (% of reading + % of range)
Frequency (Hz)
20 ~ 45 45 ~ 1k 1k ~ 10k
Current
[2]
10.0000 mA <0.2 V, 10 Ω 1.5 + 0.1 0.5 + 0.1 2 + 0.2
100.000 mA <0.2 V, 1 Ω 1.5 + 0.1 0.5 + 0.1 2 + 0.2
1.00000 A <0.3 V, 0.1 Ω 1.5 + 0.1 0.5 + 0.1 2 + 0.2
2.0000 A <0.8 V, 0.1 Ω 1.5 + 0.1 0.5 + 0.1 2 + 0.2
Ta bl e 4 - 5 Temperature coefficient for current
Range Frequency (Hz)
20 ~ 45 45 ~ 10k 10k ~ 30k
Tem p er atu r e
coefficient
10.0000 mA,
100.000 mA,
1.00000 A,
2.0000 A
0.02 + 0.02 0.02 + 0.02 0.02 + 0.02
User's Guide.book Page 69 Friday, August 8, 2008 9:11 AM