Endress+Hauser Promag 30 User manual

promag 30

Electromagnetic

Flow Measuring System

BA 008D/06/e/06.96

No. 50063716

valid from software version

V3.01.XX (measuring amplifier)

Operating Manual

Safety Instructions

Please observe without fail the safety instructions in Chapter 1 (page 5).

Warning!

Documentation for Ex instruments

Instruments which are used in the explosion hazardous area

are supplied with a separate “Ex documentation”, which is an

integral part of this Operating Manual.

The instructions and connected loads provided in this

supplement must absolutely be observed.

An appropriate icon is shown on the front of this document

according to the approval given and the test centre.

Safety Instructions Promag 30

2Endress+Hauser

ContentsContents

1. Safety Instructions . . . . . . . 5

1.1 Correct Usage . . . . . . . . . . . 5

1.2 Dangers and Notes . . . . . . . . . 5

1.3 Personnel for Installation, Start-up and

Operation . . . . . . . . . . . . . 6

1.4 Repairs, Dangerous Chemicals . . . . 6

1.5 Technical Improvements . . . . . . . 6

2. System Description . . . . . . 7

2.1 Fields of application . . . . . . . . . 7

2.2 Principle of measurement . . . . . . . 7

2.3 The Promag 30 measuring system . . . 8

2.4 Design of the measuring system . . . 10

3. Mounting and Installation . . . 13

3.1 General Information . . . . . . . . 13

3.2 Transport instructions for Promag

from > DN 350 / 14" . . . . . . . . 14

3.3 Mounting Instructions . . . . . . . 15

3.4 Mounting the sensor . . . . . . . . 18

3.5 Turning the transmitter housing

and local display (compact version) . . 23

3.6 Mounting the transmitter

(remote-mounted version) . . . . . . 24

3.7 Potential equalization . . . . . . . 25

3.8 Earthing in an area with severe

interference . . . . . . . . . . . 26

4. Electrical Connection . . . . . 27

4.1 General information . . . . . . . . 27

4.2 Connection to the transmitter . . . . 27

4.3 Connection of the remote version . . . 28

4.4 Wiring diagrams . . . . . . . . . 29

4.5 Cable specifications . . . . . . . . 31

5. Operation and Commissioning . 33

5.1 Instrument Functions . . . . . . . . 33

5.2 Setting unit parameters with miniature

switches . . . . . . . . . . . . . 37

5.3 Local display . . . . . . . . . . . 42

5.4 Commissioning . . . . . . . . . . 44

6. Fault Location and Remedies . . 45

6.1 Behaviour of the measuring equipment

in the event of a fault or alarm . . . . 45

6.2 Instructions for fault location and

remedies . . . . . . . . . . . . 46

6.3 Replacing the transmitter electronics . 47

6.4 Replacing the fuse . . . . . . . . 49

6.5 Repairs . . . . . . . . . . . . . 49

7. Technical Data . . . . . . . . 51

7.1 Dimensions and weights . . . . . . . 51

7.2 Technical data: Sensor . . . . . . . 59

7.3 Technical data: Transmitter and

measuring system . . . . . . . . . 66

7.4 Nominal diameter and flow rate . . . . 67

7.5 Error limits . . . . . . . . . . . . 68

Index . . . . . . . . . . . . . 69

Promag 30 Contents

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Promag 30

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1. Safety Instructions

1.1 Correct Usage

•The Promag 30 is only to be used for measuring the flow of conductive fluids.

•The manufacturer assumes no liability for damage caused by incorrect use of the

instrument.

1.2 Dangers and Notes

All instruments are designed to meet state-of-the-art safety requirements, have been

tested, and have left the works in an operationally perfectly safe condition. The

devices were developed according to EN 61010 “Protection Measures for Electronic

Equipment for Measurement, Control, Regulation and Laboratory Procedures”.

A hazardous situation may occur if the flowmeter is not used for the purpose it was

designed for or is used incorrectly. Please carefully note the information provided in

this Operating Manual indicated by the pictograms:

Warning!

A “warning” indicated actions or procedures which, if not performed correctly, may

lead to personal injury or a safety hazard.

Please strictly observe the instructions supplied and proceed carefully.

Caution!

A “caution” indicates actions or procedures which, if not performed correctly, may

lead to faulty operations or the destruction of the instrument.

Please strictly observe the respective instructions.

Note!

A “note” indicates actions or procedures which, if not performed correctly, may

indirectly affect operations or lead to an unexpected instrument response.

Warning!

Promag 30 1. Safety Instructions

Endress+Hauser 5

1.3 Personnel for Installation, Start-up and Operation

•Mounting, electrical installation, start-up and maintenance of the instrument may

only be carried out by trained personnel authorized by the operator of the facility.

Personnel must absolutely and without fail read and understand this Operating

Manual before carrying out its instructions.

•The instrument may only be operated by personnel who are authorized and trained

by the operator of the facility. All instructions in this manual are to be observed

without fail.

•With special fluids incl. those used for cleaning, E+H will be pleased to supply

information concerning the chemical resistance properties of wetted parts.

•The installer has to make sure that the measuring system is correctly wired up

according to the wiring diagrams. The measuring system is to be grounded.

•Please observe all provisions valid for your country and pertaining to the opening

and repairing of electrical devices.

1.4 Repairs, Dangerous Chemicals

The following procedures must be carried out before a Promag 30 is sent to

Endress+Hauser for repair:

•A note must always be enclosed with the instrument, containing a description of the

fault, the application, and the chemical and physical properties of the product

being measured.

•Remove all residue which may be present. Pay special attention to the gasket grooves

and crevices where fluid may be present. This is especially important if the fluid is

dangerous to health, e.g. corrosive, poisonous, carcinogenic, radioactive, etc.

•No instrument should be returned to us without all dangerous material being

removed first (e.g. in scratches or diffused through plastic).

Incomplete cleaning of the instrument may result in waste disposal or cause harm to

personnel (burns, etc). Any costs arising from this will be charged to the owner of the

instrument.

1.5 Technical Improvements

The manufacturer reserves the right to modify technical data without prior notice. Your

local E+H Sales Office will supply you with all current information and any updates to

this Operating Manual.

Danger of electrical shock!

With the housing cover removed, protection against accidental contact

is no longer present. Components with high voltages are exposed below the

local display. When programming according to section 5.3, avoid any contact

with the electronic components which lie below the local display, and do not

use any electrically conductive object to depress the programming keys.

1. Safety Instructions Promag 30

6Endress+Hauser

2. System Description

2.1 Fields of application

With the Promag 30 measuring system it is possible to obtain precise magneto-

inductive measurements of flow at low cost. All liquid media with a minimum

conductivity of 5 µS/cm can be measured, e.g.:

•acids, alkalis, pastes, pulps

•drinking water, waste water, sewage sludge

•milk, beer, wine, mineral water, yoghurt, molasses

2.2 Principle of measurement

In accordance with Faraday’s law of induction, a voltage is induced in a conductor

that is moved through a magnetic field. In the magneto-inductive principle of

measurement the flowing medium represents the moving conductor. The induced

voltage is proportional to the flow velocity and is fed to the measuring amplifier by a

pair of electrodes. Across the cross-section of the pipe the flow volume is calculated.

The DC magnetic field is generated by a switched direct current of alternating

polarity. Together with the patented “Integrated Autozero Circuit” this assures a stable

zero point and makes the measurement independent of the medium and insensitive to

entrained solid particles. In our works every unit is calibrated on modern calibrating

facilities, referable to international standards. There is no need for it to be adapted to

suit changing media.

Ue=B⋅L ⋅v

Q=v⋅A

Ue= induced voltage

B = magnetic induction

L = distance between electrodes

v = flow velocity

Q = volume flow

A = pipe cross-section

ba008y01

Fig. 1

Promag 30 2. System Description

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2.3 The Promag 30 measuring system

The Promag measuring system is fully modular, both mechanically and electrically.

The equipment can be extended by exchanging electronic boards. Thus the

measuring point can be optimally equipped and updated. The illustration below gives

an overview of the complete Promag 30 measuring system.

Note!

The Promag 33 system enhances the advantages of Promag 30 by providing the

following properties:

•E+H matrix-driven operation (12 languages)

•Two-line, illuminated display

•Batching with integral preset counter

•Ability to communicate

•Empty pipe detection (EPD)

You can find information on the special properties of the Promag 33 measuring system

in the “Technical Information Promag 33” TI No. 027D/06/e.

Caution!

The Promag 30 and the Promag 33 measuring systems are available with various

hazardous area approvals. Your E+H representative will be pleased to supply further

information on the available approvals. Approval relevant information can be found in

the supplement to this operating manual which can also be ordered from your

E+H representative.

•Power supply board 85...260 V AC

•Power supply board 20...55 V AC,

16...62 V DC

•Amplifier board with

Pulse output

Current output

Status output

Auxiliary input

•Local display (optional)

Sensor Equipment of transmitter

Promag A

DN 2...25

Promag D

DN 25...100

Promag F

DN 15...300

Promag F

mit DIN 11851

DN 15...100

ba008y02

Promag H

DN 25...100

Promag 30

Promag F

DN 350...2000

Fig. 2

2. System Description Promag 30

8Endress+Hauser

The measuring equipment comprises:

•Transmitter Promag 30 and

•Sensor Promag A, D, F or H

Compact version

The Promag 30 transmitter

and the sensor together form

a mechanical unit.

Promag 30 A

Promag F Promag 30

Promag 30 F

Promag 30 H

Promag D

Promag 30

Promag A

Promag 30

Promag 30 D

Promag 30

Promag H

Transmitter

Sensor

ba008y03

Remote-mounted version (FS version or FL version)

The transmitter is mounted remote from the sensor:

FS version

•Up to 10 m distance meduim conductivity

min. 5 µS/cm

•From 10…200 m distance max. cable length in terms

of the medium conductivity

(5...200 µS/cm)

FL version

•Max. cable length 200 m, not dependent on

conductivity.

•No EPD available.

•The electrical connection between transmitter and

sensor is made in the connection housing

(exception: Promag A).

The wall mounting bracket for the transmitter is supplied.

Fig. 3

Promag 30 2. System Description

Endress+Hauser 9

2.4 Design of the measuring system

(considering Promag 30 F as example)

Operation/Local display

Inside the housing of the transmitter there are miniature switches with which

altogether six operating parameters can be set (see page 37):

•Current range 0/4...20 mA

•Full-scale value scaling (volume/time), 8 steps

•Pulse weighting in decadic steps (volume), 8 steps

•Engineering units

•Function of the status output

Output of system/process errors

Flow direction recognition

•Creep suppression (on/off)

Using the Promag 30 local display, important parameters can be read off and

controlled at the measuring point directly:

•Flow rate and/or totaliser value

•Technical units (SI/US units)

•Process variables (e.g. creep rate, partial pipe filling)

•Error messages

Using the three operating keys, it is also possible to select and activate various

functions. A small pin is used to press the keys down (keep pressed for

approx. 0.5...0.8 s).

Power supply*

85...260 V AC 45...65 Hz

20... 55 V AC

16... 62 V DC

Cable entry

Sensor

Measuring

electrodes

Reference electrode

Screw cover of electronic

compartment (6 parameters can

be set here with internal miniature

switches)

Option: local display

Screw cover

Terminal compartment

ba008y04

Empty pipe

detection electrode

Outputs*

Current output active

galvanically separated

0/4...20 mA

RL ≤700 Ω

Pulse output Open Collector, passive

galvanically separated

0...400 Hz

Status output Open Collector, passive

galvanically separated

configurable for:

•output of system or process errors

•detection of the direction of flow

Auxiliary input The auxiliary voltage to be applied

to activate the function is in the

region of 3...30 V DC

•Measured value suppression

•Totalizer reset (with local display only)

* Technical data: see Chapter 7

Fig. 4

2. System Description Promag 30

10 Endress+Hauser

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