EMERSON Manuals Pressurematic® Pneumatic or Hydraulic High Low Pressure Pilots, Bettis-EN
Summary
A comprehensive service guide for Pressurematic pneumatic and hydraulic high/low pressure pilots. This manual provides expert instructions on selecting the correct model and spring combination, detailing precise procedures for set point adjustments, range screw calibration, and reassembly. It is essential reading for maintenance technicians and engineers requiring proper field or bench servicing of these critical control devices.
Page 1 Text Content
Service Manual I-0220 Rev. 4 January 2018
Pressurematic® Pneumatic or Hydraulic High/Low Pressure Pilots
Page Summary Contents For EMERSON Manuals Pressurematic® Pneumatic or Hydraulic High Low Pressure Pilots, Bettis-EN
Manual Details
| Brand | Emerson |
|---|---|
| Pages | 22 |
| File Size | 1.26 MB |
| Published | June 05, 2026 |
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Frequently Asked Questions
How do I select the correct model and spring combination?
Select a Pressurematic series and spring combination using data tabulated in the Range Table to meet requirements for range limits, span, and/or deadband. Use the largest piston and softest spring possible.
What is the goal of adjusting the range screw?
The objective is to center the adjusted span between the low and high range limits, or if only one set point exists, to center it between the range limits.
What tools are needed for Set Point Verification Calibration?
Calibration requires an N bottle, HP regulator, LP regulator, hose, block and bleed valve, and recommended test gauges (e.g., 0-150 psi or 0-1500 psi).
Can I modify the assembly type myself?
Yes, the service manual provides specific procedures for changing between P-AR to P-MR, and from P-MR back to P-AR.