3. SPECIFICATIONS
3-1. Measurement Range
With 100Ω source resistance, there are five ranges: 31.6Ω, 100Ω, 1kΩ, 10kΩ, 100kΩ.
With 30Ω source resistance, there are six ranges: 10Ω, 30Ω, 100Ω, 1kΩ, 10kΩ, 100kΩ.
The effective measurement range is listed as below.
Table 3-1 Effective measurement range
with 100Ω source resistance
Table 3-2 Effective measurement range
with 30Ω source resistance
No.
Resistance
Effective mea.range
No.
Resistance
Effective mea.range
0
100kΩ
100kΩ-100MΩ
0
100 kΩ
100kΩ-100MΩ
1
10kΩ
10kΩ-100kΩ
1
10 kΩ
10kΩ-100kΩ
2
1kΩ
1kΩ-10kΩ
2
1 kΩ
1kΩ-10kΩ
3
100Ω
50Ω-1kΩ
3
100Ω
100Ω-1kΩ
4
30Ω
0Ω-50Ω
4
30Ω
15Ω-100Ω
5
10Ω
0Ω-15Ω
3-2. Accuracy
3-2-1. Accuracy of │Z│, L, C
,
R, X
The accuracy (A
e
) of │Z│
,
L
,
C
,
R
,
X is shown as below:
A
e
= ±[A+(K
a
+K
b
+K
f
)×100+K
L
]×K
c
[%]
A
:
Basic measurement accuracy (Refer to Fig.3-1)
K
a
:
Impedance scaling factor (Refer to table 3-4), impedance <500Ω
K
b
:
Impedance scaling factor (Refer to table 3-4), impedance >500Ω
K
c
:
Temperature factor (Refer to table 3-5)
K
f
:
Calibration interpolation factor (Refer to table 4-6)
K
L
:
Cable length factor (Refer to table 4-7)
Note: Choose only Ka or Kb, depending on resistance value. For others, input zero.
Condition for L, C, X accuracy: D
x
(D measured value)≤0.1
Condition fo R accuracy: Q
x
(Q measured value)≤0.1
When D
x
≥0.1, for L, C and X, its accuracy factor A
e
shall be multiplied by
2
1
x
D
When Q
x
≥0.1, for R, its accuracy factor A
e
shall be multiplied by
2
1
x
Q