Ion Science Hydrosteel 6000 - Manual (Page 19)

Hydrosteel 6000 MANUAL Ion Science Ltd
Page 19 of 39
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Data logging and computer interface
Using the Data logging Facility
Two data logging modes are available
– ‘short’ and ‘long’.
‘Short’ data logging stores measurements over a one minute interval and is used for obtaining a spot flux
measurement at a specific site. In this mode, a record is obtained, not only of the analyser response, but also
of recent measurement stability. When the data is downloaded to computer the response of the analyser
due to attachment of the device is computed and displayed as a measurement together with the
measurement uncertainty due to any background hydrogen drift.
During ‘long’ data logging, measurements are first recorded every five seconds then at a reducing rate until
stopped manually, or by an analyser feature (memory overflow or battery empty).
During both forms of data logging, the data memory used is indicated by a memory bar extending across the
display from left to right. This memory bar blinks on each occasion that data is recorded. Appropriate log
prompts are indicated at the bottom of the display.
Short data logging
1 From normal operating mode, access ‘short’ data logging by pressing the D (data) key twice. While
attach probe is displayed, attach the probe to the target steel surface.
The memory bar flashes at one-second intervals.
2 Twelve 5-second time-averaged measurements are recorded, together with the date/time stamp,
analyser temperature, selected probe, and zone number and description.
3 When ‘short’ data logging is complete, remove probe will be displayed. Remove the probe from the
steel surface. The analyser reverts to normal operating mode automatically.
Making a single measurement
In order to make a single measurement, ‘short’ data logging can be abbreviated, as follows:
1 As above, from normal operating mode press the D key tw ice to enter ‘short’ data logging.
2 As soon as the memory bar appears (which signifies that one flux measurement has been recorded)
press the D key.
While the prompt to end log is displayed, press the D key again twice.
Long data logging
1 As above, from normal operating mode, access ‘short’ data logging by two D key presses.
2 Wait for the memory bar to be displayed.
3 Press the D key again once.
The prompt to end log is displayed and ‘long’ data logging has started.
4 Measurements are automatically recorded:
at five-second intervals for the first 10 minutes,
at one minute intervals for the next 120 minutes,
then every 10 minutes.
Memory bar
data log mode
and prompts
17
pl/cm 2 /s
60 s
log
24 o C LT