Metex 2200P pH Analyzer/Controller - Manual (Page 22)

Model 2200P Page 20
5.10 Alarm High
5.11.1 The instrument is fitted with a relay, which is set to activate on both high and low
alarm conditions. The deadband is factory set. To set the ALARM HIGH proceed
as follows.
a) Press MENU to enter the menu, proceed by pressing MENU until the ALARM
HIGH LED is illuminated. Use the arrow keys make the display read the desired
value. Press ENTER. The display will flash until ENTER is pressed again to
confirm the value.
b) Press RUN to place the instrument on line, or press MENU, for another menu
selection.
5.11 Alarm Low
5.12.1 To set the ALARM LOW proceed as follows:
a) Press MENU to enter the menu, proceed by pressing MENU until the ALARM
LOW LED is illuminated. With the arrows make the display read the desired
value. Press ENTER. The display will flash until ENTER is pressed again to
confirm entry.
b) Press RUN to place the instrument on line, or press MENU, for another menu
selection.
NOTE: A low alarm point higher than the high alarm point is an invalid entry, which
is indicated by the LED flashing when you return to RUN. To correct, return
to the menu and reset the alarm points.
5.12 Test
5.13.1 To check the setup of the 2200P, the TEST feature can be used. The test feature
will allow the user to use the arrow keys to change the display. By changing the
display value the analog outputs and relay outputs will react, as if the process was
actually changing. This feature enables the user to simulate the process and test is
the auxiliary devices connected to the relays are functioning properly.
5.13.2 To use the TEST feature proceed as follows:
a) To enter the menu press MENU, the TEST LED will be illuminated. Use the
arrow keys to change the display. The outputs will react to the changes in
the display, as if the unit was online and the process was actually changing.
b) Press RUN to place the instrument on line, or press MENU, for another
menu selection.