In this example, the user would just type 'E' by itself. This would keep people from inadvertently changing
the system settings. However, if the need should arise to change a setting, all that would be necessary
would be a 'D' command with no pass code. The following command shows the use of a pass code:
Emypass1 <Enter>
This will arm the security system and will ignore any requests for system changes until the user disarms
the system with a 'D' Command followed by the correct pass code (See 'D' command above).
'FS' Command
- Fail-safe select.
If the alarm relays should be energized in normal operation and release in the case of a power failure,
type the following:
FS1=ON
<Enter>
FS2=1 <Enter>
FS3=on
<Enter>
fs4=On
<Enter>
Note the individual control over each alarm. Also, ON/on/OFF/off or 1/0 can be used to control the status
of each. Commands are not case sensitive. Example: If only Alarm 2 needs to be in Fail-safe mode,
then type:
FS1=off
<Enter>
FS3=0 <Enter>
FS4=Off
<Enter>
This turns off the Fail-safe mode for Alarms 1 and 3.
'H' Command
- Help Screen
Displays a help screen.
H <Enter>
'M' Command
- Manually clear all alarms toggle.
This command toggles between 'M'anual and Automatic clearing of alarms. The clearing of an alarm is
simply when the condition causing the alarm has been corrected and the Series 9510 Carbon Dioxide
Analyzer gives no indication that the alarm was on. The following two examples will explain the difference
between 'M'anual and Automatic clearing of alarms:
Example #1:
The Series 9510 Carbon Dioxide Analyzer is set up to analyze a sample of gas from a room
that has a controlled concentration of CO
2
. In this case it's 50 ppm. In our example, the lab technicians
have a suspicion that the reason some of their samples in this room are failing is because of leaks in the
room causing higher CO
2
concentrations! Unfortunately, these technicians don't have any ability to record
the data from the CO
2
analyzer, so they set it up for an Alarm 1 setpoint of 50(H), alarm 2 setpoint of
51(H), and alarm 3 setpoint of 52(H). Before they leave for the night, they type:
M <Enter>
The analyzer responds with:
Alarms to be cleared Manually
ALPHA OMEGA INSTRUMENTS CORP.
SERIES 9510 CARBON DIOXIDE ANALYZER INSTRUCTION MANUAL
23
