A flashing decimal point on the lower right corner of the display will appear for 3 minutes after start-up,
calibration, bump, or programming. This is an indicator that the 4-20 mA signal is locked at 3 mA and that all
alarm functions are disabled. Once this flashing indicator clears all functions will return to normal.
High Alarm Set-up
This adjustment affects the high alarm visual indicator, on-board audible
alarm* and high alarm relay contact*.
When in the high alarm mode, the display scrolls "HIGH ALARM XXXX"
until either of the internal
or
buttons are pressed to alter the setting, or 3
minutes elapse, at which time the set-up mode is aborted and the unit returns
to normal gas readings. "XXXX" indicates the current set point. Decimals are
automatically placed as needed. If the
or
buttons are pressed during this
3-minute time, the display reverts to a continuous numeric reading, which
indicates the new alarm setting. Five seconds after the last
or
keystroke
the scrolling message commences with the newly selected setting.
4-20 On/Off**
Allows user to turn the 4-20 output signal on or off as required.
4-20 mA Range**
This adjustment affects 4-20 mA scaling.
The “4-20 mA Range” mode specifies a gas value, from 0 up to the full-scale
range, which will represent a full-scale current loop output of 20mA. When in
this mode, the display scrolls the message "RANGE XXX" until either of the
internal
or
keys are pressed to alter the setting, or until a 3 minute timer
expires, at which time the set-up modes are aborted and the unit returns to
normal gas readings. "XXX" indicates the 20 mA range.
Decimals are automatically placed as needed. If the
or
buttons are
pressed during this time, the display reverts to a continuous numeric reading,
which indicates the changed setting. Five seconds after the last
or
keystroke, the scrolling message commences with the newly selected setting.
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