The limits of custom settings and staging - PENN Controls - LIT-125400 - P10BC - P10BG - P10FC - P10PA - Electromechanical Pressure Control - P10 Low Pressure Control

P10 Series Low Range Pressure Control Product Bulletin
Product
Controls > Pressure Controls > P10 Low Pressure Control
Document type
Product Bulletin
Document number
LIT-125400
Revision date
2023-12-20
Product status
Active
Figure 1. Switch program
Callout Description
A
  • High set point for the high stage, psig
  • Dial setting
B Low set point for the low stage, psig
C High and low switch differential, psi
D Difference between the high operating points of the two switches
E Between-stage differential, psi
Table 1. Limits for a 3 psig to 20 psig (20 kPa to 140 kPa) range
Limit Callout Value, psig (kPa)
Maximum high set point of the high stage A 20 (140)
Minimum low set point of the low stage B 2 (14)
Maximum setting difference between A and B — 6 (41)
Maximum between-stage differential and maximum difference between the high operating points D, E 2 (14)
Minimum switch differential at the mid range C 2 (14)
Maximum switch differential at the mid range C 6 (41)

Example: On a 3 psig to 20 psig (20 kPa to 140 kPa) control, when the high set point is 18 psig (124 kPa), the low set point cannot be lower than 12 psig (83 kPa). If the switch differential is 4 psi (28 kPa), the between-stage differential and the maximum difference between high operating points is 2 psi (14 kPa) or less.