biosystems PhD Lite User Manual

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4. Once the latch setting is shown, the up and down
navigation arrows may be used to toggle between
ENABLED and DISABLED.
OK LATCH
DISABLED
↓↑
OK LATCH
ENABLED
5. Once the desired setting is reached, press the
MODE button to confirm the selection.
Save Changes?
YES NO CANCEL
6. Press the MODE button with YES highlighted to
save the new latch settings. The instrument will
then return to the Main Menu screen.
Alarm Latch
Saved
3.2.4 Default alarm settings
PhD Lite alarm settings are set at the factory and may
be restored at any time by performing the following
procedure.
3.2.4.1 Restore factory default alarm settings
1. Enter the Alarm Menu as described above in
section 3.2.1 and use the navigation arrows to
highlight DEFAULT.
CUSTOM LATCH
DEFAULT
TEMPERATURE
WARNINGS EXIT
2. Press the MODE button. The default low alarm
setting for oxygen will then be displayed. If the
instrument does not have an oxygen sensor, then
the LEL or toxic alarm default setting will be shown.
DEFAULT ALARM
LEVELS
DEF LOW ALARM
O
2
= 19.5 %
EXIT
3. The right and left navigation arrows are used to
scroll through the various default alarm settings.
DEF LOW ALARM
O
2
= 19.5 %
EXIT
→
DEF HIGH ALARM
O
2
= 23.5 %
EXIT
→
DEF HIGH ALARM
LEL = 10 %
EXIT
4. Press the MODE button at any time to exit.
Set Def Alarms?
YES NO CANCEL
5. Press the MODE button with YES highlighted to
restore default alarms. The instrument will then
return to the Main Menu screen.
Alarm Levels
Saved
3.2.5 Temperature alarm
The PhD Lite includes both high and low temperature
alarms for all sensors recognized by the instrument.
The alarm setpoints are pre-programmed into the
individual sensor EE-proms and may not be modified in
any way, but the high or low temperature alarms for all
recognized sensors can be enabled or disabled
depending on the needs of the user.
3.2.5.1 Enable/disable temperature alarms
1. Enter the Alarm Menu as described above in
section 3.2.1 and use the navigation arrows to
highlight TEMPERATURE.
CUSTOM LATCH
DEFAULT
TEMPERATURE
WARNINGS EXIT
2. Press the MODE button. The enabled/disabled
setting for the low temperature alarm will be
displayed. The right and left navigation arrows are
used to toggle between the high and low
temperature alarm settings.
LOW TEMP ALARM
DISABLED
EXIT
← →
HIGH TEMP ALARM
DISABLED
EXIT
3. Once the alarm that required adjustment is shown,
the up and down navigation arrows are used to
toggle between ENABLED and DISABLED.
HIGH TEMP ALARM
DISABLED
EXIT
↑↓
HIGH TEMP ALARM
ENABLED
EXIT
4. Once appropriate setting is shown, press the MODE
button to enter the new setting.

biosystems PhD Lite Specifications

General

Brand	biosystems
Model	PhD Lite
Category	Security Sensors
Language	English