Hioki MEMORY HiLOGGER LR8450 User Manual

412
Data Handling During Communications Disruption
When the stop trigger conditions are satised during the data recovery
No. Description
1
1
Starts recording from the start trigger point.
2
2
Recovers all data retained in Module 1.
3
3
Recovers data retained in Module 2.
4
4
Stops the recovery and measurement because the stop trigger was satised while recovering
data retained in Module 2.
Alarms
If communications are disrupted, the instrument cannot acquire data from wireless modules. In that
case, the instrument will not check whether the alarm conditions are satised for the channels of
such modules. (The alarm of the communications disruption will be outputted.)
After the communications recover, restoring data, the instrument will check whether the alarm
conditions are satised.
Saving data onto the storage media
When data has been save in the binary form (.MEM), the system will also recover data being saved
upon completion of data recovery. However, the system cannot recover les that have already been
saved after segmented.
When data has been save in the text form, the instrument will save only the recovery data in les
under the new name with the characters [_R] added to the end of the auto-save lename.
If the media has been replaced with another, the system cannot recover retained data because the
media presently inserted contains no data to be recovered.
Numerical calculation
If data is regarded as NO DATA, which resulted from communications disruption, the data will be
exempted from the calculation target. If the instrument makes numerical calculation using data
absolutely occupied by the NO DATA points, it will calculate the average, maximum and minimum
values using the values in the NO DATA column of the table in “11.15 Data Handling” (p. 414)
instead.
Other calculations will use zero instead.
Time-segmented calculation will not made again when the communications recovers.
Waveform calculations
If the communications between the instrument and the wireless modules are disrupted, calculation
results will remain each immediately proceeding value, excepting four arithmetic operations.
If no calculation results exist before the immediately proceeding point, calculation results will be
regarded as NO DATA.
If the data sets of calculation target channels are regarded as NO DATA, the instrument will yield
four-arithmetic-operations results, for waveform calculations as well, regarded as NO DATA.
When the communications recover, the instrument will make calculations using the recovered data;
however, the NO DATA parts will be excluded to calculate. The moving average calculation will
resume after resetting the calculation results when a NO DATA point is yielded.
HIOKI LR8450A964-03
www.GlobalTestSupply.com
Find Quality Products Online at: sales@GlobalTestSupply.com

Hioki MEMORY HiLOGGER LR8450 Specifications

General

Brand	Hioki
Model	MEMORY HiLOGGER LR8450
Category	Data Loggers
Language	English