Ph Relays - JENCO 6309 POT Operation Manual

If the relay action is set to LOW and the hysteresis mode is EDGE,
the relay will turn ON at [(RELAY SET POINT)], and will turn OFF at
[RELAY SET POINT+ (hysteresis value)].
CAUTION :
Setting any hysteresis value to zero may cause jitter and possibly
damage the relay(s).
D. pH RELAYS
EDGE
LOW
SET
POINT
ON
ON
hysteresis
Low set ON/OFF control
LOW
SET
POINT
ON
ON
hysteresis
Low set ON/OFF control
CENTER CONTROL
EDGE
HIGH
SET
POINT
OFF OFF
pH/ORP
OFF
OFF
High set ON/OFF control
EDGE CONTROL
OFF
OFF
pH/ORP
OFF
OFF
High set ON/OFF control
Figure 1
ON
pH/ORP
ON
hysteresis
HIGH
SET
POINT
ON
pH/ORP
ON
hysteresis
22
There
independent
channels for pH display
which has independent
set point
action (HIGH or LOW,
see figure
hysteresis mode (center
or edge, see figure 1.)
and hysteresis value will
be used by both pH
relays.
The action of the pH
relays is dependent on
set point, relay control
action (HIGH or LOW),
hysteresis mode (Center
or Edge), hysteresis
Value and the current
pH display (See figure 1.)
are two
relay
and control
1.). The