Install Instructions

4 P-8000/T-5312/T-8000/T-8020 Technical Bulletin
3. Note the pressure or
temperature settings on the
dial.
4. Rotate the dial very slowly
in the opposite direction and
note when the switch point
of the relay switches the
output to the opposite value
of that found in
Step 1.
5. Note the reading on the dial.
6. The difference between the
two dial readings is the
exact differential. If this is
not the desired differential,
the differential slider should
be positioned closer to the
midpoint to increase, or
away from the midpoint to
decrease the differential.
Repeat Steps 2 through 6
until the desired differential
is obtained.
Set Point Dial
Adjustments
1. Note the pressure or
temperature at the
measuring element.
2. Loosen the dial face.
If the controller is Direct Acting:
3. Turn the adjusting screw
very slowly until the control
pressure switches to
maximum, 15 or 20 psig
(105 or 140 kPa).
4. Retighten the dial to the
temperature or pressure at
the element.
5. Set the dial at the higher
temperature or pressure
switch point.
If the controller is Reverse Acting:
3. Turn the adjusting screw
very slowly until the control
pressure switches to 0 psig
(0 kPa).
4. Retighten the dial to the
temperature or pressure at
the element.
5. Set the dial at the higher
temperature or pressure
switch point.
Controls Group
507 E. Michigan Street
P.O. Box 423 Printed in U.S.A.
Milwaukee, WI 53202