Grundfos DPI Manuel utilisateur

GRUNDFOS INSTRUCTIONS

DPI

Grundfos differential pressure sensor

Installation and operating instructions

Table of contents

DPI

Grundfos differential pressure sensor

English (GB)

Installation and operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Čeština (CZ)

Montážní a provozní návod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Deutsch (DE)

Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Dansk (DK)

Monterings- og driftsinstruktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Español (ES)

Instrucciones de instalación y funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . 41

Français (FR)

Notice d'installation et de fonctionnement. . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Ελληνικά (GR)

Οδηγίες εγκατάστασης και λειτουργίας . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Magyar (HU)

Telepítési és üzemeltetési utasítás . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Italiano (IT)

Istruzioni di installazione e funzionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Polski (PL)

Instrukcja montażu i eksploatacji. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Русский (RU)

Паспорт, Руководство по монтажу иэксплуатации . . . . . . . . . . . . . . . . . . 97

Declaration of conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108

English (GB)

English (GB) Installation and operating instructions

Original installation and operating instructions

CONTENTS

Page

1. Symbols used in this document 4

2. Delivery and handling 5

2.1 Delivery 5

2.2 Handling 5

3. Applications 5

4. Identification 6

4.1 Nameplate 6

5. Function 7

6. Installation 8

6.1 Extension of cable 9

6.2 Connection of amplifier 11

7. Technical data 12

7.1 Electrical data 12

7.2 Temperatures 12

7.3 Miscellaneous 12

8. Service 12

9. Disposal 12

10. Conversion tables 13

1. Symbols used in this document

Warning

Prior to installation, read these installation and operating

instructions. Installation and operation must comply with local

regulations and accepted codes of good practice.

Warning

If these safety instructions are not observed, it may result in

personal injury!

Caution

If these safety instructions are not observed, it may result in

malfunction or damage to the equipment!

Note

Notes or instructions that make the job easier and ensure safe

operation.

English (GB)

2. Delivery and handling

2.1 Delivery

Grundfos differential pressure sensor, type DPI, is supplied for direct

mounting with 7/16"-20 UNF connection. Miscellaneous accessories are

available on request.

2.2 Handling

Comply with local regulations and good practice for the handling of electronic

equipment.

3. Applications

Grundfos differential pressure sensor, type DPI, is used for measuring

differential pressure.

Caution

If the sensor is used in a manner not specified by the

manufacturer, the protection provided may be damaged.

Do not use Grundfos DPI sensors in explosive environments zone-

classified according to ATEX.

English (GB)

4. Identification

4.1 Nameplate

Fig. 1 Nameplate for DPI

Conversion of SI units into US units, see page 13.

TM03 3063 2206

Pos. Description

1 Pressure range

2 Output signal

3 Supply voltage

4 Temperature range of medium

5 Enclosure class

6 Max. differential pressure, P1 ->P2

7 Max. differential pressure, P2 ->P1

8 Max. system pressure

9 Connection P1, high pressure (discharge side)

10 Connection P2, low pressure (suction side)

11 12 - 30 V supply voltage

12 GND (earth lead)

13 Signal lead

14 Max. current consumption

15 Country of origin

16 Version no.

GRUNDFOS DIRECT SENSORS DPI

P: 0... +XX bar

IN 12-30 VDC, 37mA

OUT 4-20 mA

Psyst. max: 16 bar

Temp. -10 +70°C

P1-P2 max. 16 bar

P2-P1 max. 10 bar

96XXXXXX - xx - XXXX - xxxxx

IP55V-No: xx

LOW

HIGH

Brown : +

Yellow : -

Green : out

10 3

916 12

11 13

152

English (GB)

5. Function

The sensor measures the differential pressure between the high pressure

(P1) and the low pressure (P2). It may for example be the differential

pressure between the flanges on the suction and discharge side of a pump.

Fig. 2 DPI with position of P1 and P2

Connect the sensor to the pressure gauge tappings of the pump flanges or to

other measuring points in the system by means of 7/16"-20 UNF copper

capillary tubes.

The pressure measurement is carried out by a silicon chip covered with a

special coating developed by Grundfos.

The sensor signal is sent to an external controller or to a motor controller.

The sensor is supplied with power from an external voltage supply or direct

from the terminal box of the motor.

TM03 2058 3505

English (GB)

6. Installation

The sensor can be mounted direct on the side of the pump or on a wall by

means of the mounting bracket supplied.

Fig. 3 Connections of the DPI

The DPI cable has four leads:

TM03 2225 3905

1 12 - 30 V supply voltage Brown

2 GND (earth lead) Yellow

3 Signal lead Green

4Test lead (can be cut off during mounting). This

lead must not be connected to voltage supply. White

The DPI must be supplied with power via a PELV supply

(EN 60335-1) where GND is connected to protective earthing.

Furthermore, connect the mounting bracket and/or one or both

of the capillary tubes to earth.

English (GB)

6.1 Extension of cable

The DPI kit 2 enables the extension of the sensor cable to up to > 30 m.

If extension of the cable is required, always follow the guidelines below to

ensure optimum connection between sensor and controller. The six steps

below refer to fig. 4on page 10:

1. Remove the outer insulation 50 mm from each cable end. Pull the outer

screen away from the cable ends.

Shorten and strip the individual conductors as shown.

2. Cut 1 10 shrink-on sleeve and 4 3 shrink-on sleeves in lengths of

20 mm.

3. Place the shrink-on sleeves as shown in fig. 4. Solder together conductor

ends of the same colour.

4. Place the small shrink-on sleeves over the centre of each solder. Heat up

the shrink-on sleeves from the centre and outwards using a heat gun in

order to achieve the best result.

5. Hold the conductors close together and pull the outer screens over the

joint, one screen at a time.

6. Place the big shrink-on sleeve over the centre of the joint and shrink it

using the heat gun from the centre and outwards.

English (GB)

Fig. 4 How to join the cables

TM04 0571 0808

1 x 10 x 20 mm

4 x 3 x 20 mm

1120

All dimensions in mm

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