281
Adjustment
See instruction printed on top of control
Note:
Remove lockplate before adjustment.
Replace lockplate after adjustment (if desired).
Setting
(se also “Wiring”)
KP 1A (auto. reset), KP 2A and KP 5A
KP 1A (manual reset ONLY)
Scale plate
Scale plate
1. Adjust range spindle to desired
1. Adjust range spindle to desired
HIGH SET POINT (HSP)
LOW SET POINT (LSP)
2. Adjust differential spindle to
2. DIFFERENTIAL is fixed.
desired DIFFERENTIAL (DIFF.)
Value printed on scale plate
Note:
KP 5A (manual reset) has fixed diff.
Value printed on scale plate.
HIGH SET POINT minus DIFFERENTIAL equals LOW SET POINT
LOW SET POINT plus DIFFERENTIAL equals HIGH SET POINT
Example:
Example:
HSP
–
DIFF.
=
LSP
LSP
+
DIFF.
=
HSP
30 psig
–
20 psi
=
10 psig
12 psig
+
10 psi
=
22 psig
(2.1 bar)
(1.4 bar)
(0.7 bar)
(0.8 bar)
(0.7 bar)
(1.5 bar)
10 psi (0.7 bar) / rev KP 1
7 psi (0.5 bar) / rev. KP 2
3 psi (0.2 bar) / rev KP 1
1.5 psi (0.1 bar) / rev. KP 2
4 psi (0.3 bar) / rev. KP 5
