NF ZM2371, Инструкция по эксплуатации

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3.5 Basic Operations
3-35 ZM2371/ZM2372
3.5.6.3 Measurement Range
Set the measurement range according to the impedance of DUT.
Current measurement range setting is displayed at the lower left of measurement screen.
・ ・ ・ ・ ・ ・ ・
A 1 0 0

F A S T 2 5 6 I n t O p S h L d 1 m
・ ・ ・ ・ ・ ・
RANGE
A Auto: Automatic selection of measurement range
H Hold: Measurement range is held for manual selection
100

Measurement range (100m  to 1M  )
Table 3
–2 Measurement range list
Measurement
range
Recommended
range
Measurable range Remarks
1M  1M  to 11M  900k  to
frequency
≦
20kHz (*1)
100k  100k  to 1.1M  90k  to
－
10k  10k  to 110k  9k  to
－
1k  1k  to 11k  900  to
－
100

9

to 1.1k
 
Not limited
－
10

0.9

to 10

to 11

Output impedance 100

/5

1  90m  to 1.0  to 1.1  Output impedance 25  /5 
100m  9m  to 100m  to 110m  Output impedance 25  /5 
Recommended range: Recommended operating range for high accuracy measurement.
If out of the recommended range extremely, the measured value or data output may be
overflow.
Measureable range: Approximate range in which the measurement is possible.
The measurement may be possible even outside the range given above depending on the
measurement conditions, or the measurement may not be possible even within the
range given above due to incoming noise.
*1 When frequency > 20kHz, the recommended range, measureable range, and
meaurement accuracy are same as 100k

range (Zr = 100k

) even if 1M

range is
specified.
Table 3
–3 Max. current, max. voltage and output impedance in each measurement range
Measurement
range
Max. drive / detection
current
Max. voltage Output impedance Rd
1M

5µArms 5Vrms 100

100k  50µArms 5Vrms 100 
10k  500µArms 5Vrms 100 
1k  5mArms 5Vrms 100 
100  50mArms 5Vrms 100 
10  200mArms 5Vrms (1Vrms) 100  (5  )
1  200mArms 5Vrms (1Vrms) 25  (5  )
100m
 200mArms 5Vrms (1Vrms)
25

(5

)
The values in ( ) are when the minimum output impedance is 5  , and the conditions for 5 
are fulfilled. Allowable current peak value (instantaneous value) including DC bias current
is about 1.4 times the current value given in table (root-mean-square value).