Standard measurement display
1 Instrument date and time 7 Battery life remaining
2 Measurement location and product name 8 USB symbol indicates USB key attached
3 User name 9 Measurement mode (continuous shown)
4 Sample temperature 10 High level alarm value (if set)
5 Measured gas 11 Low level alarm value (if set)
6 Measurement unit 12 Measurement value
• The user name will be displayed in green for a standard user, or blue for a supervisor
• The battery life remaining will not be displayed if using mains power supply, instead the icon will
show the battery recharging symbol
• The measurement value is normally displayed in blue, but will be displayed in red if it is outside the
high or low value alarm limits
• If measurement is in sample mode, the bottle icon is displayed at the top right of the screen. If
measurement mode is set to continuous, the bottle icon will be displayed with a cross through it
• The measurement display is refreshed every 5 seconds
Graphical measurement display
To access this display from the standard measurement display screen, press the right arrow key on
the keypad until the graphic screen is displayed:
This screen gives a graphical representation of the measurement with the numeric value of the
measurement displayed at the end of the curve. The above example shows the measurement in
sample mode.
The numeric measurement value at the end of the curve is refreshed every 5 seconds. The curve is
refreshed every 5 seconds in sample mode. In continuous mode, the refreshment rate is the same as
that defined as the storage interval parameter.
The graphic timescale is displayed at the bottom of the screen. This value can be increased or
decreased (4 zoom levels) by pressing the up and down arrows on the keyboard. These values are
also dependant on the storage interval parameter; the greater the storage interval, the greater the
available timescale.
The measurement scale is calculated automatically with the maximum and minimum values
displayed at the top and bottom of the y axis respectively.
In sample mode, a square symbol is displayed to denote the end of the measurement . This is
displayed in green if the stop criteria are met, or red to denote an erroneous measurement.
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