Table of Contents
Advertisement
MAN-MAXPRO
REV. B.0.
•
•
•
•
•
7. DATA LOGGING
the down arrow and select from the Data Logging Interval
list.
LEL Gas Type: There are 5 LEL gas types available:
methane, propane, pentane, hexane, and xylene. To
change the LEL gas type, select the appropriate type from
the list.
Auto-zero: If this feature is enabled on the MicroMax Pro,
the instrument will automatically zero itself during the start-
up routine. (Regardless, zeroing takes place each time a
calibration is completely done). The default setting is ON.
To turn off this feature, select OFF for Auto-zero.
Pump: Pump is required for pre-testing and calibration.
However, users may at times prefer to operate the
instrument in diffusion mode, for example, when longer run
time is desired. The default setting is ON, which represents
the pump mode. To go into diffusion mode, select OFF for
Pump.
TWA Alarm: User can choose between two alarm settings:
TWA alarm mode and immediate alarm mode. To turn on
the TWA alarm mode, set the TWA Alarm option to ON. To
turn on the immediate alarm mode, set the TWA Alarm
option to OFF. The factory alarm setting is immediate
alarm, with values chosen to provide earlier warning than
the STEL and TWA settings. The immediate high and
immediate low alarms are user-programmable. STEL is the
short-term exposure limit over a 15-minute period. TWA is
the time weighted average over an 8-hour period.
Instantaneous alarm is an exposure level that generates an
alarm instantly.
Latching Alarm: If the instrument goes into gas alarm and
latching alarm is set to OFF, the alarm will cease when gas
levels fall below the alarm level. If latching alarm is set to
ON, the alarm will continue even if gas levels fall below the
alarm level. In this case, the latching alarm will stop only
when the ON/OFF button is depressed momentarily. The
56
Advertisement
Table of Contents
