PART THREE - OPERATION
SECTION 5 - CONFIGURE MENU
Model P63 pH Analyzer
Rev. 7-1201
76
5.10 Setting SOFTWARE
ALARMS
After selecting “Software Alarms” from the CONFIGURE
menu, use the seven listed submenus (last one hidden) to
set alarm limits for the respective software alarm functions:
All software alarm functions drive the TTL (NAMUR) Out-
puts A, B, and C.
The submenu screens for each of the software alarm func-
tions -- except the “Cal Timer” -- contain the same selection
and entry fields as shown on this example screen:
Each software alarm function (except “Cal Timer”) has
alarm limit values for “Fail High,” “Warn High,” “Warn Low,”
and “Fail Low.” For example, suppose you set software
alarms for the measured temperature because you want to
be alerted when the process temperature is too far from its
normal 80
°
C. In this example, select “YES” to enable the
temperature software alarm function and enter appropriate
values. Suppose these values are:
Fail High:
+100.0
°
C
Warn High: +90.0
°
C
Warn Low: +70.0
°
C
Fail Low:
+60.0
°
C
In this example, if temperature increased to +92.0
°
C, the
display would indicate “WARN” and TTL (NAMUR) Output
B, if enabled, would provide a warn signal. If temperature
decreased to +52.0
°
C, the display would indicate “FAIL”
and TTL (NAMUR) Output C, if enabled, would provide a
fail signal.
Use the following “CAL TIMER” submenu to enter the num-
ber of days that you want to elapse before you perform the
next calibration:
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