Applent Instruments AT811, Руководство пользователя

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Specification
5 Specification
In Appendix A, you will learn the following content:

Technique Data

General Specifications

Appearance & Dimension
5.1 Technique Data
The following accuracy can be reached while in the circumstances:
Temperature: 23
℃
±5
℃
Humidity:
≤
65% R.H.
Zero value adjustment: Open & Short circuit zero-setting before testing.
Warm-up time: >60 Mins
Calibration Time: 12 Monthes
Average accuracy of testing level: 10%
Average accuracy of testing frequency: 0.02%
Accuracy of test terminal: Basic accuracy: 0.25%
C:
0.25% (1+ Cx/Cmax+ Cmin/Cx )(1+Dx )( 1+ks+kv+kf )
L: 0.25% (1+ Lx/Lmax+ Lmin/Lx )(1+1/Qx )( 1+ks+kv+kf )
Z: 0.25% (1+ Zx/Zmax+ Zmin/Zx )(1+ks+kv+kf )
R: 0.25%(1+ Rx/Rmax+ Rmin/Rx )(1+Qx)(1+ks+kv+kf )
D:
±
0.0020(1+ Zx/Zmax+ Zmin/Zx )(1+Dx+Dx
2
)(1+ks+kv+kf )
Q:
±
0.0025(1+ Zx/Zmax+ Zmin/Zx )(Qx+1/Qx )(1+ks+kv+kf )
Note
1. L/C/R/Z are relative error, D/Q are absolute error
2. Subscript “x” is measured value of the parameter, “max” is the maximum value, “min” is the
minimal value.
3. ks is speed factor, kv voltage factor, kf is frequency factor
Following Max/Min value of the measurement parameters will affect the accuracy:
100Hz 120Hz 1kHz 10kHz
Cmax
800
µ
F 667
µ
F 80
µ
F 8
µ
F
Cmin 1500pF 1250pF 150pF 15pF
Lmax 1590H 1325H 159H 15.9H
Lmin 3.2mH 2.6mH 0.32mH 0.032mH
Zmax/ Rmax
1M
Ω
Zmin/ Rmin
1.59
Ω
Test speed error factor ks:
ks=0
Test level error factor: kv
Test level, instrument set parameters’ signal level V (rms), measure unit: mV
1Vrms
kv=0;
0.3Vrms kv=1;
Test frequency error factor kf:
f = 100Hz,120Hz ,1kHz: kf=0
f = 10kHz kf=0.5