Setra 524 Operating Manual

Installation Guide

MODEL 524

Pressure Transducers

560550-0088

Rev A

1-800-257-3872 TOLL FREE
1-978-264-0292 FAX

www.Setra.com Web Site

Setra offers a complete line of

products for these industries:

Industrial

HVAC

Test & Measurement

Barometric

Ultra High Purity / Sanitary

Please Note: The 524 series is designed and manufactured in accordance with sound engineering

practice as defined by the Pressure Equipment Directive 97/23/EC. This product must not be used as a
“safety accessory” as defined by the Pressure Equipment Directive, Article 1, Paragraph 2.1.3. The CE
Mark on the unit does not relate to the Pressure Equipment Directive.

INTRODUCTION

The Series 524 pressure transducers use high output strain gauges to provide 100mV output for full
range pressure, when used with a 10V d.c. power supply.

Series 524 high output pressure transducers are fitted with a hybrid amplifier providing various optional
(at time of order) voltage outputs, and a 4- 20mA current output capable of being used in control and
indicating loops without further amplification.

Series 524 with the CE Mark conform with the essential protection requirements of the EMC Directive
89/33/EEC amended by certified type testing to EN 50082-2 and EN 50081-1.

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.

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.

GENERAL

* Transducer should not be subjected to greater than the maximum allowable pressure

and the following operating temperature specifications:

Compensated Temperature Range: 14°F to +120°F (-10°C to +50°C)
Operating Temperature Range: 40°F to +180°F (-40°C to +80°C)

* Transducer should not be subjected to mechanical impact.
* In the event of fire the end user must ensure that the system pressure is vented to a safe

area.

* The effects of decomposition of unstable fluids should be considered by the user when

placing this device in service.

* The pressure transducer has no means of draining or venting, this must be performed by

another component in the end users system.
* Pressure range must be compatible with the maximum pressure being measured.
* Pressure media must be compatible with the transducer wetted parts listed in

these instructions.
* Liquid must not be allowed to freeze in the pressure port.

MECHANICAL INSTALLATION

The pressure transducers have been designed for measuring hydrostatic level by suspension from the
cable.

For calibration purposes a G¼AT external pressure port has been provided and is accessible by
removal of the nose cone.

ELECTRICAL INSTALLATION

All types include suppression devices providing transient protection to EN 61000-4-2 and EN 61000­4-4. Conformity with the requirements of the CE mark only applies when connection is made with Setra
Systems approved cable, see APPROVED CABLE section, and is connected as shown below:-

Millivolt Output Transducers: Four wire shielded cable should be used with the cable shield
connected to the instrumentation ground. The cable shield should not be connected to the transducer
body.

High Output Transducers: The shield of the cable must be grounded at the instrumentation end. If
a 'Ground Loop' problem is encountered when the body of the unit is grounded by the piping it is
permissible to remove the cable shield from the instrumentation ground.

APPROVED CABLE

Setra Systems uses cables comprising 7 color-coded wires, with a central vent tube, enclosed by an
aluminium/polyester shield where the shield is in contact with a separate drain wire. The outer sheath is
Polyurethane.

OPERATION

Having installed the transducer as instructed, it is ready for use. Before applying power, check that the
correct polarity and excitation levels are being applied. See Table 1 for electrical connections.

CALIBRATION

Transducers are calibrated to the range requested at time of order.

LOAD CHARACTERISTICS (4-20mA Current Output)

The total resistive load in the loop (to include all the cable resistance) can be from 'zero to 50 x (supply
volts -8) ohms' e.g. with a 24V d.c. supply the permissible load is from zero up to 800 ohms.

OPERATIONAL LIFE:

Limited to 100M cycles to maximum allowable pressure.

WARRANTY

We guarantee this instrument against faulty workmanship and material for a period of two years from
date of delivery. The Company undertake to repair, free of charge, ex-works any instrument found to
be defective within the specified period providing the instrument has been used within the specification in
accordance with these instructions and has not been misused in any way.

Detailed notice of such defects and satisfactory proof thereof must be given to the Company immediately
after the discovery and the goods are to be returned free of charge to the Company, carefully packed
and accompanied by a detailed failure report. See "RETURN TO FACTORY".

WETTED PARTS

316L stainless steel, polyurethane and acetal.

SERVICING

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 Setra Systems at the address shown below or to your local Setra Distributor
when a replacement/repair is required:

United States Outside The United States
Setra Systems Inc Contact your local Setra Distributor
159 Swanson Road
Boxborough. MA 01719
Attn: Repair Department

RETURN TO FACTORY

PLEASE NOTE: To comply with Health and Safety requirements, the instrument must be clean and

safe to handle and accompanied by a formal statement to that effect duly signed by an authorised officer
of the Company.

Any instrument returned without certification will be quarantined and no action will occur until cleared. It
may ultimately be returned to you and subject to a transportation charge.

MAINTENANCE

Routine Inspection: Not required except for periodic inspection of the cable and connector to

ensure that these are neither damaged nor softened by incompatible liquid.

TABLE 1

ELECTRICAL CONNECTIONS

Type

Number

524-BP Cable R Y B W Drain

524-11 Cable R BL Drain

524-2C Cable R W Y Drain

Connector

In+ Out+ Out- In- Earth In+ In- Earth In+ Com Out+ Earth

mV 4-20mA 0-10V

Output Supply Voltage

BP 0 to 100mV 10V d.c.
11 4 to 20mA 8 – 28V d.c.
2C 0 to 10V 13 to 28V d.c.

159 Swanson Road, Boxborough, MA 01719-1304
Tel: [phone]

OP524 Rev A 11/03