Thermo Scientific STD5000 User manual

STD5000 & STD6000
Current to Pressure Transducers
User Guide
P/N MA45-5600-00
Revision &

© 2005 Thermo Fisher Scientific Inc. All rights reserved.
“Dow Corning” is a registered trademark of Dow Corning Corporation.
All other trademarks are the property of Thermo Fisher Scientific Inc. and its subsidiaries.
Thermo Fisher Scientific Inc. (Thermo Fisher) makes every effort to ensure the accuracy and completeness of this
manual. However, we cannot be responsible for errors, omissions, or any loss of data as the result of errors or
omissions. Thermo Fisher reserves the right to make changes to the manual or improvements to the product at
any time without notice.
The material in this manual is proprietary and cannot be reproduced in any form without express written consent
from Thermo Fisher.

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Thermo Fisher Scientific STD5000 & STD6000 User Guide v
Revision History
Revision Level Date Comments
5F -- --
A 06-05 Revised per ECO 4882.
B 06-06 Revised per ECO 5219.
C 10-07 Revised per ECO 5720.
D 08-08 Revised per ECO 6521.
E 04-09 Revised per ECO 6869.

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Thermo Fisher Scientific STD5000 & STD6000 User Guide vii
Contents
Chapter 1 Product Overview ............................................................................................. 1-1
Installation & Wiring........................................................................................ 2-1
Chapter 2
Requirements ...................................................................................... 2-1
Mounting............................................................................................ 2-2
Pneumatic Connections ...................................................................... 2-3
Electrical Connections......................................................................... 2-4
Chapter 3 Operation ............................................................................................................ 3-1
General ............................................................................................... 3-1
Programming ...................................................................................... 3-1
Chapter 4 The E-Pi Plug-In Module ................................................................................. 4-1
General ............................................................................................... 4-1
Replacing the E-Pi .............................................................................. 4-2
Fixed Orifice Replacement .................................................................. 4-3
Cleaning & Repair .............................................................................. 4-4
Calibration & the Test Jack............................................................................ 5-1
Chapter 5
Calibration.......................................................................................... 5-1
The Test Jack...................................................................................... 5-1
Calibration & Operation.................................................................. 5-1
Monitoring ...................................................................................... 5-2
Troubleshooting & Support............................................................................. 6-1
Chapter 6
External Filtration............................................................................... 6-1
Supply Pressure Regulation ................................................................. 6-1
Replacing the CCB ............................................................................. 6-2
Troubleshooting Guide....................................................................... 6-3
Contact Information ........................................................................... 6-4
Warranty............................................................................................. 6-4
Toxic & Hazardous Substances Tables....................................................... A-1
Appendix A
Appendix B Ordering Information....................................................................................... B-1
Specifications....................................................................................................C-1
Appendix C

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Chapter 1
Product Overview
Thermo Fisher Scientific’s STD5000 and STD6000 current to pressure
(I/P) transducers represent the highest standard in I/P technology. The
rugged NEMA 4X housing, compact size, and plug-in E-Pi module
coupled with Thermo Fisher’s field proven technology make them the most
accurate, reliable, and simplest I/P transducers to install, operate, and
maintain in the industry.
Thermo Fisher’s solid state current-to-pressure converter (E-Pi) technology
uses minimal electrical energy and air consumption to convert an electronic
input signal (4–20 or 10–50 mA) to a proportional pneumatic output
signal (3–15 psig, 0.2–1 bar, etc.). The E-Pi transducer utilizes a virtually
weightless membrane that is electromagnetically positioned over a nozzle to
precisely modulate the pneumatic (backpressure) output. The low mass
membrane is held in a continuously balanced position, providing an output
that is unaffected by shock, vibration, or mounting position. The output of
the E-Pi is then fed into an integral volume booster to deliver a pneumatic
output signal with an output capacity of 4.0 standard cubic feet per minute
(scfm).
The overall performance, accuracy, and repeatability are enhanced by
employing an internal feedback network whose speed and resolution enable
the transducer to quickly respond to input changes. The balanced supply
and exhaust dynamics enhance control stability, while delivering accuracies
of ± 0.15 to ± 0.25 percent of span.
Thermo Fisher Scientific STD5000 & STD6000 User Guide 1-1

Product Overview
Requirements
1-2 STD5000 & STD6000 User Guide Thermo Fisher Scientific
Figure 1–1. Operation flow chart