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
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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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Dynamic response
The Promag 30 measuring amplifier has a very high dynamic response of over
1000:1. It measures at medium velocities from less than 10 mm/s to over 10 m/s with
the specified accuracy. When the flow is pulsating, the amplifier is not over-driven
even above the end value setting at maximum speeds up to 12.5 m/s. There is then
no falsification of the measured value, provided the outputs are not over-driven.
Memory (DAT)
DAT is an exchangeable memory module. Stored in it are all characteristic data of the
sensor, such as calibrated quantities, nominal diameter, sensing rate, version, serial
number. When the transmitter has been changed, the previous DAT memory is
inserted in the new transmitter. When the measuring system is started, the measuring
point continues to operate with the data stored in the DAT memory. Thus the DAT
concept assures maximum safety and optimum ease of operation when components
of the equipment are exchanged.
Safety
•A comprehensive self-monitoring facility of the measuring system assures high
safety. Any system error messages (coil-current error, amplifier error, DAT error,
EEPROM error, ROM error, RAM error) or a power supply failure that do occur are
emitted at the configured status output.
•In the event of a power supply failure all data of the measuring system are securely
stored in the EEPROM (without a backup battery).
•The Promag 30 measuring system fulfils the safety requirements according to
EN 61010 “Protection Measures for Electronic Equipment for Measurement,
Control, Regulation and Laboratory Procedures”, and the general requirements
for electromagnetic compatibility (EMC) according to EN 50081 Part 1 and 2 /
EN 50082 Part 1 and 2 as well as the NAMUR recommendations.
•IP 67 protection (EN 60529) is standard for the transmitter and sensor (remote or
compact version). The sensor is also optionally available in IP 68.
Promag 30 2. System Description
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nichts
nichts Promag 30
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3. Mounting and Installation
Warning!
•Pay consistent attention to the notes in this chapter regarding to assure reliable
measurement.
•For explosion protected instruments the mounting regulations and the technical
data may differ from those stated here. Please refer to the Ex supplement of this
operating manual.
3.1 General Information
Type of protection IP 67 (EN 60529)
The instruments fulfils all requirements for IP 67. In order to assure the type of
protection IP 67 after installation in the field or servicing, it is essential to comply with
the following points:
•The housing gaskets must be clean
and undamaged when inserted in the
sealing groove. If necessary, the
gaskets must first be dried, cleaned
or renewed.
•All screws in the housing and the
screw cover must be screwed up
tight.
•The cables used for connection must
possess the stipulated outside
diameter (see page 59, 60, 66).
•Tighten the cable entry (see Fig. 5).
•Loop the cable before inserting. This
prevents moisture from penetrating
the cable entry (see Fig. 5).
•Any cable entries not used must be
stopped with a screw plug.
•The protective grommet must not be
removed from the cable entry.
Caution!
The screws of the Promag sensor housing must not be released, otherwise the
guarantee for the type of protection expires.
Note!
The sensors Promag A, D and F can optionally be supplied with the type of protection
IP 68 (permanently under water to a depth of 3 m). In this case the transmitter (IP 67)
has to be mounted remote from the sensor.
Temperature ranges
•The maximum permissible ambient and medium temperatures must be adhered to
(see page 63, 66).
•When installed outdoors, specially in countries with high ambient temperatures,
a weatherproof hood should be provided as protection against direct solar
radiation.
Warning!
ba008y05
Fig. 5
Promag 30 3. Mounting and Installation
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3.2 Transport instructions for Promag from > DN 350 / 14"
The pipe lining on the flanges is protected by disks to prevent damage when
transporting to the installation point. These are to be removed before installation.
The instruments are to be transported in the containers they are delivered in.
Transporting to the measuring point
•The grips on the flange must be used
for lifting out and mounting the sensor
in the piping.
•The sensor should not be lifted by the
connection housing.
•The sensor should not be lifted by the
sheet casing using a forklift truck.
This can buckle the casing and
damage the internal magnetic coils.
Base of the sensor
The sensor should stand on a base
which is sufficiently strong to withstand
its weight.
Note!
The sensor must not be supported by
the sheet casing! This can buckle the
casing and damage the internal
magnetic coils.
ba008y60
ba008y61
ba008y62
Fig. 6
ba008y63
ba008y64
Fig. 7
3. Mounting and Installation Promag 30
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3.3 Mounting Instructions
Please pay attention to the following instructions, in order that you may measure
correctly and avoid damage to the equipment.
Mounting position (any)
a) Vertical mounting:
Optimal, with the flow upwards.
Entrained solid particles sink and
lighter fatty elements in the
stationary medium rise away from
the electrodes.
b) Horizontal mounting:
The axis of the electrodes must
be horizontal, thus preventing brief
insulation of the electrodes by
entrained air bubbles.
Electrode axis
The plane in which the electrode axis
lies with regard to the Promag 30
measuring transmitter is identical for
the measuring sensors A, D, F and
Promag H also.
Vibration
Fasten the piping before and after the
sensor.
Caution!
Excessive vibration necessitates
separate mounting of the sensor and
transmitter (see chapter 3.6).
With free runs of piping over 10 m long,
we recommend mechanical supports.
ba008y07
a)
b)
Fig. 8
ba008y06
Measuring
electrodes
Electrode axis
Fig. 9
ba008y08
>10 m
Fig. 10
Promag 30 3. Mounting and Installation
Endress+Hauser 15

Inlet and outlet runs
The sensor should be mounted away
from fittings liable to generate
turbulence (e.g. valves, elbows,
T-junctions).
Inlet run: > 3...5 x DN
Outlet run: > 2 x DN
Mounting location
Correct measurement is only possible
when the pipe is full. Consequently the
following locations should be avoided:
•No installation at the highest point
(air accumulation).
•No installation immediately before an
open pipe outlet in a downward line.
The installation shown in Fig. 12,
however, permits such a location.
Partly filled pipes
For inclines a mounting similar to a drain
should be adopted. Do not mount at the
lowest point (risk of solids collecting).
Added security is offered by Empty Pipe
Detection (EPD). This option has an
extra electrode in the measuring pipe
(standard with Promag F sensor).
Note!
Here, too, the inlet and outlet lengths
should be maintained.
DN = pipe diameter
> 3...5 x DN > 2 x DN
ba008y09
Fig. 11
ba008y10
h > 2 x DN
Fig. 12
> 3...5 x DN
> 2 x DN
ba008y11
Fig. 13
3. Mounting and Installation Promag 30
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Downward pipe (> 5 m)
With the suggested installation opposite
(siphon, vent valve after the sensor) no
partial vacuum is created with such a
downward pipe > 5 m long.
Installation of pumps
If possible avoid mounting the sensor on
the suction side of the pump (danger of
vacuum!). Information on the resistance
to vacuum of the measuring pipe lining
can be found on page 62.
Adaptor pieces
The sensor can also be mounted in a
pipe with a larger nominal diameter
when suitable adaptors (reducers and
expanders) to DIN 28545 are fitted. The
resultant increase in the rate of flow
increases the accuracy of measurement
with slowly flowing fluids.
The adjacent nomogram can be used to
determine the pressure loss caused.
Procedure:
1. Determine the ratio of the diameters
d/D.
2. From the nomogram read off the
pressure loss at the flow velocity and
d/D ratio.
Note!
The nomogram applies to fluids with a
viscosity similar to that of water.
Vent valve
ba008y12
>5 m
Fig. 14
ba008y13
Fig. 15
max. 8°
dD
ba008y14
Pressure loss in [mbar]
Diameter ratio d/D
Fig. 16
Promag 30 3. Mounting and Installation
Endress+Hauser 17

3.4 Mounting the sensor
Mounting Promag 30 A
Length and dimensions
See chapter 7.1 “Dimensions and weights”.
Mounting
The inserted parts are
•screwed on to the 1" stub with a skirted nut.
•mounted instead of the 1" threaded stub.
Screw tightening torques and gaskets
When screwing on the inserted parts the O-ring or the flat gasket is pressed
completely into the sealing groove of the stub. The skirted nut thereby experiences a
fixed stop.
3. Mounting and Installation
Sensor 1" threaded stub (ISO 228):
not required with flange joints
O-ring of Viton or Kalrez or silicone flat gasket
(aseptic) version
Nominal
diameters:
DN 2...25
ba008y15
Internal thread, external thread, PVC adhesive
coupling, hose connection and welded nipples,
are screwed on with a skirted nut
Tri-clamp®
connection are
fitted instead of the
threaded stub.
Flange joints
(stainless steel 1.4404/316L,
PVDF) are fitted instead of the
threaded stub
Fig. 17
3. Mounting and Installation Promag 30
18 Endress+Hauser

Mounting Promag 30 D
Length and dimensions
See chapter 7.1 “Dimensions and weights”.
Mounting
Mounting of the wafer is carried out with
the aid of a mounting set which
consists of:
•Tie rods
•Centering discs
(not needed with DN 32 and 65)
•Nuts
•Washers
When hard rubber liner is used,
additional flat gaskets are needed.
Procedure:
1. Mount the three or correspondingly more tie rods with washers, including two
gaskets, on both pipe flanges. Pay attention to the instructions given below
regarding gaskets.
2. Push the two centering discs on to the measuring pipe.
3. Now fit the sensor together with the centering discs between the already mounted
tie rods.
4. Mount the remaining tie rods, but do not tighten up the hex nuts yet.
5. Turn the centering discs so that the studs can be driven centrally outwards.
6. Now tighten up the hex nuts.
Screw tightening torques
•The listed tightening
torques apply to greased
threads.
•Screws tightened up too
tightly deform the sealing
surface (pay special
attention with soft rubber
lining).
Gaskets
•With soft rubber/Teflon (PTFE) linings a flange gasket can be dispensed with.
•With soft rubber linings the mating flange should have a thin film of sealing grease
applied.
•Use a gasket as per DIN 2690.
Caution!
Do not use sealing media that are electrically conductive, e.g. graphite. On the inside
of the measuring pipe this could result in an electrically conductive layer forming
which would short-circuit the measuring signal.
Tie rod
Promag D
Centering disc
Flange
Washer
Nut
ba008y16
Fig. 18
DN Pressure stage Max. tightening torque
[Nm]
DIN
[mm] ANSI [inch] DIN [bar] ANSI [Ibs] Hard rubber Teflon (PTFE) Soft rubber (EPDM)
25
32
40
50
65
80
100
1"
-
11/2"
2"
-
3"
4"
PN 40 Class
150
35
55
70
85
65
75
120
15
20
30
30
30
35
65
Promag 30 3. Mounting and Installation
Endress+Hauser 19

Mounting Promag 30 H
Length and dimensions
See chapter 7.1 “Dimensions and weights”.
Mounting
The various process connectors are fastened to the sensor with 4 or 6 screws. As a
rule, the promag H sensor is supplied with works-monted process connectors.
When mounting the process connectors,
please make sure that the packing is
free of dirt and correctly centered.
The screws have to be tightened.
The process connector forms a metal
connection with the sensor, so the
packing is not compressed.
Welding the sensor into the pipework
If the sensor is directly welded into the pipework, we recommend that you:
1. Fasten the Promag H sensor with some welding points into the pipe;
2. Loosen the screws at the process-connector flange and remove the sensor from the
pipe; make sure that the gasket is also removed from the process connector;
3. Weld the process connector into the pipe.
4. Once again install the sensor into the pipe; make sure everything is clean and
the gasket is correctly positioned.
Note!
If the welding process is correctly executed, the gasket will not be damaged by the
heat, even when mounted. Nevertheless, we recommend you remove the sensor and
gasket first.
For the mounting, the pipe has to be opened by about 4 mm.
Caution!
Please note that the grounding of the welding set does not occur by way of the
Promag 30 H (sensor or transmitter). If you fail to observe this, the electronics might
be destroyed.
Process connections
Welded hex nipple, Tri-Clamp® ,
DIN 11851, ISO 2852, ISO 2853 or
SMS are fastened to the sensor
with screws (already mounted
when delivered)
Flat gasket made of
Silicone or EPDM
ba008y99
Promag H
Fig. 19
DN Pressure
stage Max. tightening torque
[Nm]
DIN
[mm] ANSI [inch]
25
40
50
65
80
100
1"
11/2"
2"
21/2"
3"
4"
PN 16
10
10
25
25
88
88
3. Mounting and Installation Promag 30
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