Metex 2200C Conductivity Analyzer/Controller - Manual (Page 17)

Model 2200C Page 15
iv) With this configuration when the process reaches the Control Relay
Setpoint the relay will cycle continuously 30 seconds activated, 60
seconds deactivated until the Deadband Relay A setting is passed.
NOTE: As shipped from the factory the OFF time is set at 10 seconds and the
ON time is set at 5 seconds.
5.7 Alarm High
5.7.1 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 CALL to enter the menu, proceed by pressing CALL 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 CALL, for another menu
selection.
5.8 Alarm Low
5.8.1 To set the ALARM LOW proceed as follows:
a) Press CALL to enter the menu, proceed by pressing CALL 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 CALL, 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.
5.9 Test
5.9.1 To check the setup of the 2200C, 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.
5.9.2 To use the TEST feature proceed as follows: