Barton 227C User Manual

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MODELS 200A/227A/227C

DIFFERENTIAL PRESSURE INDICATOR

200A use 199 DPU

227A uses 224 DPU

227C uses 224C DPU

Installation Manual

Version 03D77d

ID#10055

4/2003

CONTENTS

Section 1 - Introduction .......................................................... Page 3

1-1. General....................................................................... Page 3

1-2. Main Components ....................................................... Page 3

1-3. Indicator Specications................................................. Page 3

1-4. Theory of Operation .................................................... Page 3

Section 2 - Installation ............................................................ Page 5

Section 3 - Maintenance ......................................................... Page 7

3-1. Required Tools............................................................. Page 7

3-2. DPU Test/Calibration/Maintenance Equipment .............. Page 7

3-3. Bezel and Lens Installation and Removal ........................ Page 7

3-4. Calibration Check ........................................................ Page 7

3-5. Pointer Installation and Removal ................................... Page 8

3-6. Complete Calibration ................................................... Page 8

3-7. Overrange Stop Adjustment.......................................... Page 9

3-8. DPU Maintenance........................................................ Page 10

3-9. Locking Drive Arm to Torque Tube ............................... Page 10

3-10. Troubleshooting ......................................................... Page 11

Section 4 - Parts Drawing/List ................................................ Page 12

4-1. Model 200A................................................................ Page 12

Figure 4-1. 200A Parts Drawing ....................................... Page 12

Table 4-1. 200A Parts List................................................ Page 13

4-2. Models 227A and 227C............................................... Page 14

Figure 4-2. 227A/227C Parts Drawing............................. Page 14

Table 4-2. 227A/227C Parts List ..................................... Page 15

Section 5 - Installation Drawings.............................................. Page 16

5-1. 200A (0200-09043) .................................................... Page 16/17

5-2. 227A (0227-09013) Standard ...................................... Page 18/19

5-3. 227A (0227-09033) 500 psi Brass ............................... Page 20/21

5-4. 227C (227C-10013).................................................... Page 22/23

[This manual is for the Indicator only - before installing or

operating this instrument, refer to the separate DPU manual that is

appropriate for the instrument model listed above.]

Model 200A

Model 227A

Questions and Answers:

A
Angela ChangAug 4, 2025
What to do if my Barton 227C show low or no indication?
- P
  pclarkAug 4, 2025
  If your Barton Measuring Instruments are showing low or no indication, the issue might be with the indicator. You can try the following: * Tighten or replace the movement. * Calibrate the unit. * Clean or replace the mechanism. * Tighten the pointer.
C
carriehernandezAug 17, 2025
How to fix erratic indication on Barton Measuring Instruments?
- J
  Justin MitchellAug 18, 2025
  If you're experiencing erratic indication on your Barton Measuring Instruments, the problem might stem from the indicator. Try adjusting or cleaning the movement, or adjust the pointer position.

Barton 227C Specifications

General

Type	Circular Chart Recorder
Number of Pens	1 or 2
Power Supply	115 VAC, 60 Hz or 220 VAC, 50 Hz
Chart Size	12 inches
Measurement Range	Depends on sensor/transmitter
Resolution	0.1% of full scale