PART THREE - OPERATION
SECTION 5 - CONFIGURE MENU
Rev. 7-1201
Model P63 pH Analyzer
55
the pH gets too high -- or if the analyzer power is inter-
rupted (the relay will turn off, closing the NC contacts and
powering the horn).
•
Type
(for CONTROL or ALARM relay)
:
This choice se-
lects the relay operating mode.
CONTROL Relay
Selecting “CONTROL” operates the relay in a control
mode. Setup entries specific to a CONTROL relay are:
Phase -- HIGH” sets the relay set point to respond to
increasing measured value; “LOW” assigns
the relay set point to respond to decreasing
measured value.
Set Pt -- Sets the value at which the relay will turn on.
Dband -- Sets the range in which the relay remains on
after the measured value decreases below
the set point value (HIGH phase relay) or
increases above the set point value (LOW
phase relay).
Overfd Timer -- Sets the time (0-999.9 minutes) to limit
how long the relay can remain “on.” For com-
plete details, see PART THREE, Section 8.
ALARM Relay
Selecting “ALARM” operates the relay in an alarm mode.
Setup entries specific to an ALARM relay are:
High Alarm -- Sets the value at which the relay will
turn on in response to increasing meas-
ured value.
High Dband -- Sets the range in which the relay re-
mains on after the measured value
decreases below the high alarm value.
Low Alarm --
Sets the value at which the relay will
turn on in response to decreasing
measured value.
Low Dband -- Sets the range in which the relay re-
mains on after the measured value
increases above the low alarm value.
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