A&D Omniace III RA2300A, Instruction Manual

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19.
Troubleshooting
RA2300A Recorder (7001754-R01) 19-5
Q 3: What is the relation between the available acquisition time and the media (recording
medium) space?
Answer The available time depends on Media space, a Data type, and a Channel Number.
Details
The available time can be roughly estimated by the following formulas.
Sample time: Acquisition length = (media space – 4KB) / (used channel numbers x 2)
Peak time: Acquisition length = (media space – 4KB) / (used channel numbers x 4)
Maximum time of acquisition of 8Ch of 640MB data at sample time (acquisition length
39,999,750 data)
Sampling
speed
maximum
recording time
[ms] [s] [min] [h] [day]
200us Approx. 2 hours 7,999,950 8,000.0 133.3 2.2
500us
Approx. 5 hours
and 30 minutes.
19,999,875 19,999.9 333.3 5.6
1ms Approx. 11 hours 39,999,750 39,999.8 666.7 11.1
2ms Approx. 22 hours 79,999,500 79,999.5 1,333.3 22.2
5ms
Approx. 2 days
and 7 hours
199,998,750 199,998.8 3,333.3 55.6 2.3
10ms
Approx. 4 days
and 15 hours
399,997,500 399,997.5 6,666.6 111.1 4.6
20ms
Approx. 9 days
and 15 hours
799,995,000 799,995.0 13,333.3 222.2 9.3
50ms Approx. 23 days 1,999,987,500 1,999,987.5 33,333.1 555.6 23.1
100ms Approx. 46 days 3,999,975,000 3,999,975.0 66,666.3 1,111.1 46.3
200ms Approx. 115 days 7,999,950,000 7,999,950.0 133,332.5 2,222.2 92.6
500ms Approx. 231 days 19,999,875,000 19,999,875.0 333,331.3 5,555.5 231.5
1s Approx. 463 days 39,999,750,000 39,999,750.0 666,662.5 11,111.0 463.0
Q 4: A data cannot be saved in CSV format is not available with an insufficient media space
message.
Answer The file size for saving in CSV format is about five times larger than in binary format.
Details Use the media having enough space.
Q 5: A recording operation can be started when inputting a frequency exceeding external
synchronization clock specifications (10 kHz), but is this operation available?
Answer A memory external synchronization is recorded by a 1μs gating internal clock with an external
clock.
Details
A recording operation is available with the sampling rate up to about 1μs, but the 1μs
maximum delay from an external clock develops. Therefore, inputting a fast clock may trigger
a waveform distortion. The value of this specification is provided the value that can neglect the
influence of a waveform distortion (1% or lower.)
Q 6: After the speed of recoding paper feeding is externally synchronized, a monitor waveform
is not displayed.
Answer Once the paper feeding speed is externally synchronized, a real-time monitor is externally
synchronized as well.
Details
The input terminal of an external synchronization is dedicated to a paper feeding motor.
Therefore, for the monitor, the same clock signals must be input to the input terminal of
external samples.