MSA 9010 SIL, Operating Manual, Page: 14 / 76

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Description
GB
Model 9010/9020 SIL
Measured Values
The display shows the actual gas concentration. The decimal point position can be set in
Access Code No.4.
Measuring Units
The measuring units can be set to LEL, LELm, PPM, %Vol, g/m3 or no units.
For more information about measuring units setting, see chapter 5.4.
Access code 4 - Configuration operations.
Status of Control Unit
2.3 Keypad
ALARM INHIBIT
ALARM INHIBIT is blinking in the display of the channel with inhibited
alarms.
If inhibited the alarm relays will not be activated in case the measured
concentration reaches the alarm level.
For more information about ALARM INHIBIT see chapter 5.2 "Access
code 2 - Settings for Particular Operating Conditions".
ALARM DELAY
ALARM DELAY is displayed if Alarm delay is activated for the individual
channel.
For more information see chapter 5.4 "Access code 4 - Configuration".
TIME-OUT OFF
TIME-OUT OFF is displayed if the TIME-OUT function is disabled. The
TIME-OUT function checks if a front panel key is pressed (e.g. during
configuration of the unit.
For more information about TIME-OUT function see chapter 5.2 "Access
code 2 - Settings for Particular Operating Conditions".
CAL
The CAL indicator provides information about the pre-set calibration term
and about detector sensitivity reduction during calibration procedure.
CAL indicator starts blinking if the calibration pre-set time interval
expires.
CAL is steadily displayed if the detector signal during the calibration is
below 50 % of the signal achieved during the previous calibration.
For more information see chapter 5.1 "Access Code 1 - Calibration".
Enter key
To select the access codes and
confirm data settings
UP key
For increasing the value to be
modified in the configuration
menu Can be used for alarms acknowl-
edgement/horn silence and alarm
reset in normal operating mode.
Down key
For decreasing the value to be
modified in the configuration
menu Can be used for alarms acknowl-
edgement/horn silence and alarm
reset in normal operating mode.
Escape key
To leave the actual menu or
cancel the changes