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
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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
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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
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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
or
•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
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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
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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
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