Crowcon Triple Plus+ User Manual page 15

Triple Plus+ and Triple Plus+ IR Setting Up
ZERO enables the option of zeroing the sensors at start, as per the zero all
option above – the prompt to zero the sensor will appear several seconds after
start up (to give the sensors time to settle) and will timeout (without performing
a zero) if the YES button is not pressed within about 5 seconds.
LOG enables data logging at start up, and ZERO & LOG enables both zero and
data logging at start up. Select NOTHING to disable zero and logging at start
up.
BUTTN
The left-hand button can be programmed to perform various functions when
the instrument is in normal gas measurement mode. The options available are:
NOTHING, PUMP, PEAK, TWA TOXIC, AVERAGE, NORMAL.
NOTHING means all special functions on the button are disabled.
PUMP allows the pump to be switched off and on without having to enter the
menu system to perform this action.
PEAK, TWA TOXIC and AVERAGE are as per the DISPY functions. Pressing the
button when one of these options is selected will toggle the display mode
between that set on the button and that set in the DISPY setting.
NORMAL serves a similar function. If the DISPY mode has been set to some-
thing other than NORMAL then NORMAL allows the display mode to be tog-
gled from that set in the DISPY option to the normal gas display. Note: these
display functions have no effect if the DISPY mode is set to OFF, and that the
instrument will always start up in the display mode set by the DISPY function.
If the MUTE function is enabled then a SILENT ALARMS option will also appear
as one of the possible selections in the BUTTN menu. This option allows the
programmable button to toggle the MUTE feature between SILENT ALARMS
and AUDIBLE ALARMS. Note that when SILENT ALARMS is selected no audible
siren will sound when the instrument is in alarm, nor will the alarm light flash.
There will be a visual indication of the alarm condition on the instrument's
display. When the programmable button is pressed the instrument will issue a
double bleep sound as an audible confirmation that a feature has been selected
or de-selected.
FLAMM (Triple Plus+ only)
This selects the flammable gas correction to be used for flammable (pellistor)
sensors. It may be set to NO CORRECTION or to one of the gases defined in
the flammable correction table. If a gas is selected, then this will change the
name on the display and use the selected correction factor for pellistor sensor
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