Thermo Scientific MIRAN 205B Series Instruction Manual page 82

Chapter 7 Configuration and Setup
Gas High Range Limit
The Gas High Range Limit (HRL) is the high range limit of the gas for the application.
The last limit configured is shown on the display. If this is the limit for the present
application, press . The display changes to the next parameter to be configured.
ENTER
Press to change the limit. The High Range Limit Enter Display appears. Key in the
1
desired limit and press . If the entry is valid, the display responds "-ACCEPTED-
ENTER
" and then changes to the next parameter to be configured.
Note: The instrument continues to display readings above this high range value, but
these readings will not be accurate, and a high range limit error flag will be displayed.
Changing this value might require changes to the application's linear and quadratic terms.
This value also represents the 1.0V level for the analog output.
Gas Decimal Point Maximum
Gas Decimal Point Maximum selects the number of digits to the right of the decimal
point that are to be displayed. For example, if the expected readings are in the vicinity of
500 ppm, select whole numbers (zero digits). If the expected readings are in the 1 to 10
ppm range, select display readings to a tenth of a ppm (one digit). The following are
suggested: select 2 places for values of 0 to 1, 1 place for values of 1 to 10, and 0 places
for values >10. Remember that there is the option of changing units to ppb or percent
levels.
Gas High Alarm Level
Gas High Alarm Level enables setting the high alarm level for the application. The last
level configured is shown on the display. If this is the level for the present application,
press . The display changes to the next parameter to be configured. Press to
ENTER 1
change the level. The High Alarm Level Enter Display appears. Key in the desired level
and press . If the entry is valid, the display responds "-ACCEPTED-" and then
ENTER
changes to the next parameter to be configured.
Gas Low Alarm Level
This parameter is similar to Gas High Alarm Level.
Gas STEL Alarm Level
This parameter is similar to Gas High Alarm Level.
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