19
Programming Alarm Levels
1.
Move the toggle switch on the front panel to BYPASS position.
2.
Press and hold the pushbutton switch (above the toggle switch) until the
Low alarm LED starts flashing. Release the switch.
3.
While the LED is flashing the display will show the current alarm level. To
change the level press and hold the pushbutton switch until the display
reads the desired alarm setting. The alarm level can be adjusted between 0
and the full scale of the sensor. For example, for H2S or LEL the alarm level
can be set between 0 and 99. If the desired alarm level is below current
settings press and hold the switch. The displayed alarm level will start over
from 0 after 99.
4.
Release the switch when alarm level set.
5.
About five (5) seconds after the switch has been released the Low alarm
LED will be turned off. Low alarm level is set. Now High alarm LED starts
flashing and the display will show the High alarm level. The monitor is
ready for High alarm level. Repeat steps 3 and 4 to set High and High-
High alarm levels.
6.
After setting High-High alarm level the monitor will return to normal
operation.
Setting Alarm as Latching or Non-Latching
The alarms can be set as latching or Non-Latching by setting the Dip-Switch
located on upper left corner of the control module. See figure 6. The dip-
switch is labeled as
Relays
with arrow indicating the switch selection for
latching or non-latching. Position 1 of the Dip-switch is for Low alarm ,
position 2 is for High alarm and position 3 for High-High alarm. Position 4 is
not used for standard application and is reserved for custom application or
future use.
To set the alarm as latching move the dip-switch up or move the dip switch
down for non-latching alarms.
The dip-switch positions in the diagram below shows Low and High alarm
configured as non-latching and High-High alarm set as latching
