PeakTech 2170 Bedienungsanleitung Seite 47

Note: All accuracy is guaranteed by proper ratio resistor
calibration and open/short calibration.
If D > 0.1, the accuracy should be multiplied by
Z
C
Z
L
Sub-display parameters accuracy:
Ae = impedance (Z) accuracy
Definition: Q =
Rp = ESR (or Rs) * (1+1/D²)
1. D value accuracy: De = ±Ae × (1+D)
2. ESR accuracy: Re= ±Z
ie., Z
3. Phase angle θ accuracy: θe= ±(180/π) × Ae (deg)
Note:
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1
= if D << 0.1 in capacitance mode

2 fc
= 2πf L if D << 0.1 in inductance mode
1
D
= impedance calculated by
M
D dissipation factor
Q: quality factor
ESR: equivalent series resistance
Rp: equivalent series parallel resistance
θ:
phase angle
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× Ae (Ω)
M
1
or 2πf L

2 fc
-46-

2
1 D