KROHNE PTD500 User Manual

Installation and Operating Instructions

PTD 500

KROHNE 12/2003 7.02277.21.00

Subject to change without notice.

Variable area flowmeters

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Content

Safety information..........................................................................................................................3

Items includes with supply............................................................................................................3

Produkthaftung und Garantie .......................................................................................................3

CE / EMC / Standards/ Approvals .................................................................................................3

Installation...........................................................................................................................4

1.1 Mechanical installation..........................................................................................................4

1.2 Process connection...............................................................................................................4

1.3 Electrical connection ............................................................................................................. 4

1.3.1 Connection diagrams ............................................................................................................ 5

1.3.2 Start-up ................................................................................................................................. 5

1.3.3 Operator control ....................................................................................................................5

Technical data ..................................................................................................................... 6

2.1 Technical data.......................................................................................................................6

2.2 Dimensions ...........................................................................................................................7

Ordering code .....................................................................................................................8

3.1 Ordering code .......................................................................................................................8

3.2 Spare parts ...........................................................................................................................8

3.3 Accessories ..........................................................................................................................8

Product description ............................................................................................................ 9

4.1 Applications ..........................................................................................................................9

4.2 Functional principle ............................................................................................................... 9

4.3 Construction.......................................................................................................................... 9

4.4 Features................................................................................................................................ 9

If you need to return a device for testing or repair to KROHNE...............................................11

2 Installation and Operating Instructions PTD 500

Safety information

Please read this manual carefully, and also take note of country-specific installation standards (e.g. the VDE regulations in Germany) as well as prevailing safety regulations and accidents prevention rules. For safety and warranty reasons, any internal work on the instruments, apart from that involved in normal installation and electrical connection, must be carried out only by qualified KROHNE personnel.

Items includes with supply

• Measuring instrument

• Hygienic adapter

• Installation and operating instructions

Produkthaftung und Garantie

Responsibility for suitability and intended use of these instruments rests solely with the operator. Improper installation and operation of the instruments may lead to loss warranty.

In addition, the “General conditions of sale” forming the basis of the purchase contract are applicable.

If instruments need to be returned to KROHNE, please note the information given on the last-butone page of these instructions.

KROHNE regrets that it cannot repair or check your instruments unless accompanied by a fully completed Service and Repair sheet.

CE / EMC / Standards/ Approvals

The product bears the CE marking on account of compliance with and application of the following standards:

EMCG (89/336/EEC)

EN 50081-1, 50081-2 EN 61326 EN 50121-4

Installation and Operating Instructions PTD 500 3

1 Installation

1.1 Mechanical installation

• Use only the recommended sleeves or adapters. If other systems are used, no guarantee can be given for proper functioning or leak tightness.

• Before installing and dismantling the sensor, make sure that the system is non-pressurised!

• Do not use Teflon or paper gaskets.

• Insert the measuring head with care and straight into the sleeve. Screw the sensor in by hand.

Then tighten down using an open-end wrench applied to the hexagon (jaw size 41) with a torque between 20 and 30 Nm.

• On no account may a tightening torque be applied anywhere else other than at the hexagon!

• Following assembly, the position marking of the sleeve points to the outgoing cable and the

filter cover for the air vent. When welding in the sleeve, please bear this in mind for suitable positioning.

1.2 Process connection

The hygienic G1“h process sleeves are easy to weld into tanks or pipes. The marking points to the centre of the future position of the cable glands or M12 connector. This form of assembly allows installation in conformity with standards of hygiene (to EHEDG, 3A and FDA). Various hygienic adapter sleeves (see Accessories) are available for fitting to other process connections. The device can be installed in any desired position.

1.3 Electrical connection

• Installation of the device in the plant may only be carried out by an electrician. Observe the national and international regulations for the installation of electrical systems and equipment.

• For voltage supplies, use a suitable power supply unit (EN50178, SELV, PELV) with a voltage of between 16 V and 30 V.

• Disconnect the plant from supply before connecting up the devices.

• Do not loosen or detach connections when energised.

• To avoid adverse effects due to interference voltages, a shielded cable is recommended if

there is any greater distance between sensor and display.

• The sensor operates as a 2-wire device (current sink). Normally, connection of cables L+ (1) and I - (2) will suffice, see connection diagram 1.

4 Installation and Operating Instructions PTD 500

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