Tonghui TH2827 Series - Page 80

TH2827 Series Operation Manual Chapter 7 Command Reference
74
150kHzfm
1MHz
)
200
3)(
101
(
3
sm VZ



)
70
1)(1010(
9
s
m
V
Z 

Fast
fm1.2kHz
msm fVZ
100
)
400
1)(
105.2
(
3



ms
m
fV
Z
100
)
100
1)(106.0(
9


1.2kHzfm
8kHz
)
400
1)(
105.2
(
3
sm VZ



)
100
1)(102(
9
s
m
V
Z 

8kHzfm
150kHz
)
100
1)(106(
9
s
m
V
Z 

150kHzfm
1MHz
)
400
2)(
105.2
(
3
sm
VZ



)
100
1)(1020(
9
s
m
V
Z 

Where, f
m
is the test frequency and the unit is [Hz].
The unit of the tested impedance is [].
The unit of the test signal voltage is [mV
rms
].
When the impedance is smaller than 500, K
a
, K
b
is unavailable.
When the impedance is larger than 500, K
a
, K
b
is unavailable.
Table C when the cable length is extended, K
a
should add the following value:
Cable length L [m] 0 1 2
Added value of Ka 0 0.0005 0.0010
Table D when the cable length is extended, Kb should multiply the following
value:
Cable length L [m] 0 1 2
fm100kHz 1 1+5×fm 1+10×fm
100kHz<fm300kHz 1 1+2×fm 1+4×fm
300kHz<fm1MHz 1 1+0.5×fm 1+1×fm
Where, f
m
is the test frequency and the unit is [MHz].
Table E calibrated interpolating factor K
C
Test frequency Kc
Direct calibrated frequency
(listed in Table F)
0
Other frequency 0.0003