INTERSPIRO Spiroguide II, Руководство пользователя

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If only one value is shown, there is no toggle function and the backlight button works
as a backlight only.
Pressing the backlight button repeatedly toggles between values. When the backlight
is switched off after four seconds the display will always show the default value.
During use, the remaining air time is calculated based on the previous air
consumption. Since the value is calculated, the displayed time can be both shorter
or longer than the actual remaining time, depending on the previous and future work
load and rate of breathing.
The remaining time information must only be used as a complement to the cylinder
pressure information. Low air warnings must always be heeded, regardless of the
remaining time indication.
Until the first value is calculated from the air consumption, the display shows
“CALC ...”. The first value is displayed when there has been a significant pressure
drop, normally after one to two minutes of breathing.
The remaining time is calculated to the activation of the low air warning.
The unit can be configured to have a heat alarm. When the absorbed temperature has
reached the trigger value, the alarm is activated. An audible beep sounds, the display
alternates to show ‘‘TEMP!!!’’ and the display and main BAC LED flash red.
A battery symbol is always shown on the Digital Display. The symbol shows the battery
capacity of the BAC batteries in four steps. With the Low Battery warning the symbol
starts to flash.
TURN AROUND PRESSURE REFERENCE POINTS (TAP REFX) (OPTIONAL)
TAP is a tool for operations when working on one and the same spot. The TAP value
is based on the initial cylinder pressure and the air consumption to reach the spot
where the TAP is calculated.
To calculate TAP, press and hold the backlight button (Fig. 7-A) for 5 seconds until the
display reads TAP REFA xx bar.
To recalculate TAP, press and hold the backlight button (Fig. 7-A) for 5 seconds until
the display reads TAP REFB xx bar, each new calculation gets a new letter.