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FirstCheck+ 1000, 2000, 3000 & 5000
Instrument Menu
WARNING: Ion Science makes every effort to ensure the gas tables held within the FirstCheck+ memory and
supplied on CD are accurate at the time of manufacture. In critical applications alarm levels must be checked,
compared and adjusted to local legislation before use.
CUSTOM offers a quick route to the last 10 selected gases. When selected, use the
UP and DOWN keys to change the gas then press ENTER to select.
LIST allows selection of any gas from within the gas table held in the FirstCheck+
memory.
After selecting the LIST symbol, select the first letter of the gas you wish to select and
press ENTER. The FirstCheck+ will then list all gases starting with that letter. WMD
gases are prefixed with the letters WMD.
Alarm levels that are set in the gas table will be automatically selected. Should a gas be
selected that is not compatible with the selected lamp, the following symbol will
appear to highlight the incompatibility
Unit Selector (FirstCheck+ 1000, 2000, 3000 & 5000)
The FirstCheck+ photo-ionisation detector can be selected to measure VOC's in either ppm (Parts per
million, by volume), ppb (Parts per billion) or mg/m
available on the FirstCheck+ 5000 and is upgradeable on the 1, 2 and 3000 versions.
This option is also available on the 1stPC program.
Cycle Screens (FirstCheck+ 1000, 2000, 3000 & 5000)
When viewing readings in the large single readoutl screen format the Firstcheck+ can be set to auto-scroll
through each sensor reading in turn. This is set using the 1stPC software. When the cycle screens option is
unselected the user can move between sensor readings using the UP and DOWN keys. This option is also
available on the 1stPC program.
Data Log Memory Alarm (FirstCheck+ 2000, 3000 & 5000)
FirstCheck+ has been designed to continuously store data; once the memory has
reached its full capacity (8 Mb) it will automatically begin to overwrite previous
readings. An alarm can be set on the 1stPC software to inform the user that this is due
to happen giving the user time to download any data that may be over written, if they
wish to do so. This option is also available on the 1stPC program.
Application - Health & Safety Mode (FirstCheck+ 3000 & 5000)
averages (TWA) that are specific for particular hazardous environments (for example
EH40 in the UK and OSHA in the USA). In this mode of operation STEL's and TWA's on
the VOC, H
S and CO sensors are continually calculated and compared to levels set in
2
the instruments gas table.
You cannot adjust settings or parameters of the instrument while in Health & Safety
mode as these could effect the ongoing calculations. Should you want to proceed
with an adjustment a WARNING screen will appear. You have the option to continue
with the adjustment by pressing Enter or abort and continue monitoring by pressing the
'Esc' key.
.
Modes of operation are selected to suit how the instrument
is being used. Health & Safety mode is used to check for
conformity of short-term exposure levels (STEL) or time-weighted
Ion Science Ltd
3
(Milligrams per cubic metre). NB: the ppb option is
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Ion Science Ltd
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Custom
List
When selected
When Selected
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