RKI Instruments SDM-2012 PC Controlled Configuration - Manual (Page 164)

159 • Instrument Function Menu
calibration dates for only the standard 4 sensors (LEL, O
2
, H
2
S, and CO) are
used to determine if calibration is due. If Cal Check Gas is set to ALL, the
calibration date for the standard 4 sensors along with the %volume sensor and
ppm sensor (Gas Tracer only) are used to determine if a calibration is due.
• Alarm Latching: With alarm latching selected (factory setting), the instrument
remains in alarm condition until the alarm condition passes and the POWER
ENTER button is pressed. With alarm latching not selected, the instrument
automatically resets an alarm when the alarm condition passes.
• Alarm Silence: With alarm silence selected (factory setting), pressing and
releasing any button silences the buzzer when the instrument is in a gas alarm.
The LEDs continue to flash and the display continues to show the alarm. When
the gas concentration falls below the alarm level, pressing and releasing
POWER ENTER clears all alarm indications for that alarm. With alarm silence
not selected, you cannot silence the buzzer. You must wait until the alarm
condition clears before you can press POWER ENTER to clear the alarm
indications.
• User/Station ID: With User/Station ID selected, the ID Screen displays during
start up and the Select User ID Screen and Select Station ID Screen appear in
Display Mode. With User/Station ID not selected (factory setting), the ID Screen
does not display during start up and the Select User ID Screen and Select
Station ID Screen do not appear in Display Mode.
• Cal Reminder: With Cal Reminder selected (factory setting), the instrument will
give an indication at start up if it is due for calibration. The type of indication will
depend on the Cal Past Due Act setting.
• Auto Fresh Air Adj: With Auto Fresh Air Adj selected, the instrument will perform
a fresh air adjustment after the start up sequence. If Auto Fresh Air Adj is not
selected (factory setting), the instrument will not perform a fresh air adjustment
after the start up sequence.
• Lunch Break: With Lunch Break selected, the Resume Measurements Screen
displays during startup. From this screen, you can choose to continue
accumulating TWA and PEAK readings and the time in operation from the last
time the instrument was used or start collecting new TWA and PEAK readings
and reset the time in operation. With Lunch Break not selected (factory setting),
the instrument automatically starts new TWA and PEAK reading collection and
resets the time in operation at startup.
• Data Log Overwrite: With Data Log Overwrite selected (factory setting), the
instrument writes over the oldest data with new data when the data logger
memory is full. With Data Log Overwrite not selected, the instrument stops
saving data to the data logger when the data logger memory is full.
• Data Log Memory: With Data Log Memory selected (factory setting), the Data
Logging Screen in Display Mode asks whether you want to clear the logged data
in addition to showing the log time remaining. With Data Log Memory not