4Ha Proportional-Only Controllers; Adjustments For 4194Ha Controllers - Emerson Fisher 4194HA Instruction Manual

Differential pressure indicating controllers
Table of Contents

Advertisement

4194HA, HB, HC Controllers
July 2018
Section 3
3‐3‐
4194HA Proportional‐Only Controllers

Adjustments for 4194HA Controllers

Note
Some of the following procedures require adjusting the proportional band knob between DIRECT and REVERSE. If this is done, it
will be necessary to set the proportional band knob to 400 (direct or reverse action) before replacing the proportional band
indicator cover.
This section includes descriptions of adjustments and procedures for prestartup and startup. Location of adjustments
is shown in figure 3‐1. To better understand the adjustments and overall operation of the controller, refer to the
principle of operation and the schematic diagrams (figures 3‐3, 4‐2, and 4‐3). Unless otherwise noted, refer to figure
6‐1 for key number locations.
12
Instruction Manual
D200156X012

Hide quick links:

Advertisement

Table of Contents
loading

This manual is also suitable for:

Fisher 4194hcFisher 4194hb

Table of Contents