Alarm Setpoint Menu - Scott PORTABLE GAS DETECTION INSTRUMENT User Manual

6.7 ALARM SETPOINT MENU

The "ALARM SETPOINT" can be adjusted by the user in the ALARM
SETPOINT menu within the following ranges:
CO = 5 to 250 ppm
Cl = 0.1 to 10.0 ppm
2
ClO = 0.10 to 2.00 ppm
2
HCN = 0.1 to 50.0 ppm
H S = 5 to 100 ppm
2
NH = 5 to 100 ppm
3
NO = 0.2 to 5.0 ppm
2
O LO = 0.0 to 21.0%
2
O HI = 21.0 to 25.0%
2
PH = 0.10 to 5.00 ppm
3
SO = 0.5 to 20.0 ppm
2
Very low oxygen alarm settings are useful when the instrument is used to
verify nitrogen purging. On leaving the setpoint function or on subsequent
power on, the user will be prompted to verify the safety of abnormally low
settings
To enter the ALARM SETPOINT menu, depress the "SELECT" pushbutton in
the menu selection screen as described in Section 6.2 above. One of the
following ALARM SETPOINT menu screens will appear:
For Toxic Gases
For O
2
The setpoint shown is the factory default setting. If acceptable, depress
<gas> ALARM SETPOINT
HI ALARM = <_> ppm
CHANGE
ALARM SETPOINT
HI ALARM = 23.5%
LO ALARM = 19.5%
CHANGE
26
OK
OK