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Please Note:

  Ranges above 7  psi are designed and manufactured in accordance with sound

engineering practice as defined by the Pressure Equipment Directive 97/23/EC and must not be used as
a “safety accessory” as defined by the Pressure Equipment Directive, Article 1, Paragraph 2.1.3.

Ranges below 7 psi are exempt from the Pressure Equipment Directive.  The CE Mark on the unit does
not relate to the Pressure Equipment Directive.

INTRODUCTION

Series 550 are low range fluid pressure measuring transducers in which a ceramic  capacitive sensor is
used to convert fluid pressures into a proportional electrical signal.  These instruments are suitable for
long, continuous arduous service when operated within the published specifications.

Series 550 conform with the essential protection requirements of the EMC Directive 89/336/EEC
amended by certified type testing to EN 50082-2 and EN 60081-1.

Conformity with the requirements of the CE mark only applies when the installation
conditions described in these instructions have been met.  For units supplied without
a cable assembly connection to the transducer must be accomplished using Setra
Systems approved cable.  see APPROVED CABLE section.

All instruments conform to the appropriate specifications and/or drawings applicable and have been
subjected to relevant strict quality control procedures.

HAZARDOUS PRODUCTS

The Consumer Protection Act of 1987, Section 6 of the Heath and Safety at Work Act 1974 and the
Control of Substances Hazardous to Health Regulations 1988 require that we advise recipients and
users of our products of any potential hazards associated with their storage. Handling or use.

The products which our Company supplies may be classified as Electrical, Electro-Mechanical and
Electronic equipment.

These products are tested and supplied in accordance with our published specifications or individual
special requirements that are agreed in writing at time of order.  They are constructed so as not to affect
adversely the safety of persons and property when properly installed, maintained and used by qualified
personnel, in the applications for which they were designed and manufactured

ACTION ON RECEIPT

*

Check details on Calibration Certificate agree with data etched on transducer body.

*

Check accessories supplied include:

Calibration Certificate (or QA Certificate)
Seal, Dowty Bonded (where applicable)
Mating Connector (where applicable)

Summary of Contents for 550

Page 1: ...Installation Guide MODEL 550 Low Range Pressure Measuring Transducers 560550 0092 Rev A 1 800 257 3872 TOLL FREE 1 978 264 0292 FAX www Setra com Web Site ...

Page 2: ...Setra offers a complete line of products for these industries Industrial HVAC Test Measurement Barometric Ultra High Purity Sanitary ...

Page 3: ...cer must be accomplished using Setra Systems approved cable see APPROVED CABLE section All instruments conform to the appropriate specifications and or drawings applicable and have been subjected to relevant strict quality control procedures HAZARDOUS PRODUCTS The Consumer Protection Act of 1987 Section 6 of the Heath and Safety at Work Act 1974 and the Control of Substances Hazardous to Health Re...

Page 4: ...ure ports should have a maximum thread engagement of 0 5 13mm and UNDER NO CIRCUMSTANCES be allowed to touch the pressure sensitive diaphragm Pressure couplings should be sealed against the outer face at the pressure port entry using bonded seal washer such as Part Number Description Dowty Ref GA29 G bonded seal up to 212 F 100 C operation 400 021 4490 02 GA30 G bonded seal up to 392 F 200 C opera...

Page 5: ...ved while the system is at pressure Before applying power check that the correct polarity and excitation levels are being applied See ELECTRICAL REQUIREMENTS Cable Version 4 F to 122 F 20 C to 50 C Connector Version 13 F to 185 F 25 C to 85 C Process Media 40 F to 212 F 40 C to 100 C OPERATIONAL LIFE Limited to 10 million full scale cycles CALIBRATION Transducers are calibrated to the range reques...

Page 6: ... Not Used A Y 3 Not Used B Z 4 W C Not Used 5 X D Not Used 6 Y E Not Used 7 Z F Not Used Range Downranging Scope Nominal W 110 to 74 X 78 to 52 Y 54 to 37 Z 47 to 32 LOAD RESISTANCE 4 20mA Transmitter The total permissible resistive load in the loop to include all the cable resistance can be from zero to 50 x supply volts 8 5 ohms e g with a 12V d c supply the permissible load is from zero up to 1...

Page 7: ...CING The transducer cannot be repaired locally and if damaged should be returned to Setra Systems with the following 1 Name and phone number of person to contact 2 Shipping and billing information 3 Full description of malfunction 4 Remove any pressure fittings and plumbing that you may have installed and enclose any required mating electrical connectors and wiring diagrams Please ship prepaid to ...

Page 8: ...emperatures in excess of 400 C CONTACT OUR SALES OR SERVICE DEPARTMENT TO ASCERTAIN IF THE INSTRUMENT CONTAINS VITON W A R N I N G ELECTRICAL CONNECTIONS 4 20MA VOLTAGE IN IN GROUND IN COM OUT GROUND CABLE R BL DRAIN R W Y DRAIN CONNECTOR 1 2 E 1 2 3 E OUTPUT SUPPLY VOLTAGE 4 20mA 9 35V d c 0 5 5 5V d c 7 5 35V d c 1 6V d c 8 35V d c 0 5V d c 7 5 35V d c 0 1 5 1V d c 7 5 35V d c 1 5V d c 7 5 35V d...

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