Hioki 8841 - Page 434

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19.2 Analog Inputs
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Frequency
ranges
0.05, 0.1, 0.5, 1,5, 10, 50, 100, 500 Hz/DIV 1,5kHz/DIV
5, 10, 50, 100, 500 r/min/DIV
Power source frequency ranges:
P50 Hz（40 to 60 Hz）, P60 Hz（50 to 70 Hz）
Frequency
accuracy
±0.2%f.s.（except 100 kHzf.s. range）
±0.7%f.s.（100 kHzf.s. range）
±0.032Hz（Power source frequency ranges）
Frequency hold
ON/OFF (waiting time 10 ms, 1 s variable )
When hold is OFF, the current measurement value is halved if the next
measurement value is not fixed within the waiting time.
Count ranges
5, 10, 50, 100, 500 counts/DIV
1, 5, 10, 50, 100, 500 k counts/DIV
Duty range
100%f.s.
Duty accuracy ±1%（10 Hz to 10 kHz）
Threshold value (common)
-10 to +10 V variable（0.2 V steps）
Frequency measurement
ranges(common)
DC to 100 kHz (Frequency)
DC to 90 kHz (Count)
10 Hz to 100 kHz (Duty)
Response time (common)
10μs not greater (Frequency (more than 300 Hz), Count)
50μs not greater (Frequency (less than 300 Hz), Duty)
The sampling period of the MEMORY HiCORDER in which the unit is
installed must be added to the above.
Voltage range
500μV/DIV, 1, 2, 5, 10, 20, 50, 100, 200, 500 mV/DIV, 1, 2 V/DIV
Current range
Using the 9270
*2
, 9272(20A)
*2
, 9277
*2
, 3273
5, 10, 20, 50, 100, 200, 500 mA/DIV, 1, 2, 5 A/DIV
Using the 9271
*2
, 9272(200A)
*2
, 9278
*2
50, 100, 200, 500 mA/DIV, 1, 2, 5, 10, 20, 50 A/DIV
Using the 9279
*2
200
*1
, 500 mA/DIV, 1
*1
,2
*1
,5,10
*1
,20
*1
, 50, 100
*1
A/DIV
*1:
Vertical resolution 64 LSB/DIV
*2:
Not complied with the CE marking.
Frequency characteristic
（common）
DC to 400 kHz ±3 dB (DC coupling)
(When using a sensor, depends on the characteristics of the sensor.)
DC amplitude accuracy
（common）
±0.4%f.s. (Using the 9279 ±0.5%f.s.)
Zero position accuracy
（common）
±0.15%f.s. (Using the 9279 ±0.2%f.s.)
Temperature characteristic
（common）
Gain: ±0.025%f.s./
o
C
Zero position: ±0.03%f.s./
o
C (range: 0.5, 1, 2 mV/DIV)
:±0.04%f.s./
o
C (range: except 0.5, 1, 2 mV/DIV)
Common mode rejection
ratio
80 dB minimum (at 50/60 Hz and with signal source resistance 100 Ω
maximum)
Noise
150μVp-p max. (f.s.=20 DIV, at 0.5 mV/DIV range)
■ Frequency, Count and Duty Measurement
■ Voltage and Current measurement
When measuring current, the accuracy and characteristics of the probe must be added to the above.