Spirax Sarco ELM Installation, Operating And Maintenance Instructions

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3090050/1

IM-P309-02

MI Issue 2

ELM

ElectroMagnetic Inductive Flowmeter

Installation, Operating and Maintenance Instructions

1. Introduction

2. Safety information

3. General product information

4. Steps prior to operation

5. Applications

6. Operational mode and system design

7. Performance characteristics and environmental conditions

8. Installation / conditions for use

9. Maintenance and repair

10. Dimensions and weight

11. Commissioning

12. System design

13.Congurationandoperation

14. Operating modes

15. ELM functions

16. Standard operating mode

17. Standards & Directives

18. Maintenance

19.Decontaminationcerticate for device cleaning

IM-P309-02 MI Issue 2 1

Printed in GB

IM-P309-02 MI Issue 22

1. Introduction

This installation and operating manual explains how to operate, install and per form maintenance on the flowmeter. Please read the manual carefully before installing the device and putting it into operation. The manual does not apply to non-standard versions or applications.

All devices are thoroughly tested and checked for order compliance prior to shipping. Upon receipt of the device, check it for shipping damage.

If any problem comes to light, contact your local Spirax Sarco representative. Please describe the problem and indicate type and serial number of the device. We extend no guarantee of any kind for repair work that is under taken without notifying us in advance of the intention to carry out such work. Unless other wise agreed, any part or component for which a claim is lodged is to be sent to us for examination.

2. Safety information

Safe operation of this unit can only be guaranteed if it is properly installed, commissioned and maintained by a qualified person (see Section 1.11) in compliance with the operating instructions. General installation and safety instructions for pipeline and plant construction, as well as the proper use of tools and safety equipment must also be complied with.

Supplier:

Spirax-Sarco Limited Charlton House Charlton Kings Cheltenham Glos GL53 8ER

The product is designed and constructed to withstand the forces encountered during normal use. Use of the product for any other purpose, or failure to install the product in accordance with these Installation and Maintenance Instructions, could cause damage to the product, will invalidate the marking, and may cause injury or fatality to personnel.

The following conditions should be avoided as they may create interference above the heav y industrial limits if:

- The product or its wiring is located near a radio transmitter.

- Cellular telephones and mobile radios may cause interference if used within

approximately 1 metre (39") of the product or its wiring. The actual separation distance necessar y will vary according to the surroundings of the installation and the power of the transmitter.

If this product is not used in the manner specified by this IMI, then the protection provided may be impaired.

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Installation, commissioning, operating personnel

Mechanical and electrical installation, as well as commissioning, maintenance and operation, are to be realized solely by qualified personnel that are authorized by the installation operator to perform such work. All such personnel must read and understand the content of the applicable operating instructions before working with the device.

In general, follow the conditions and provisions applicable in your country.

The present document contains the information that you need in order to operate the product described herein properly. The document is intended for use by qualified personnel. This means personnel who are qualified to operate the device described herein safely, including electronics engineers, electrical engineers, or service technicians who are conversant with the safety regulations pertaining to the use of electrical and automated technical devices and with the applicable laws and regulations in their own country.

Such personnel must be authorized by the facility operator to install, commission and service the product described herein, and are to read and understand the contents of the present operating instructions before working with the device.

2.1 Hazard warnings

The purpose of the hazard warnings listed below is to ensure that device operators and maintenance personnel are not injured and that the flowmeter and any devices connected to it are not damaged.

The safety advisories and hazard warnings in the present document that aim to avoid placing operators and maintenance personnel at risk and to avoid material damage are prioritized using the terms listed below, which are defined as follows in regard to these instructions herein and the advisories per taining to the device itself.

2.2 Danger

means that failure to take the prescribed precautions will result in death, severe bodily injury, or substantial material damage.

2.3 Warning

means that failure to take the prescribed precautions could result in death, severe bodily injury, or substantial material damage.

2.4 Caution

means that the accompanying text contains important information about the product, handling the product or about a section of the documentation that is of particular importance.

Note means that the accompanying text contains important information about the

product, handling the product or about a section of the documentation that is of particular importance.

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2.5 Proper use of the device

Warning

The operator is responsible for ensuring that the material used in the sensor and housing is suitable and that such material meets the requirements for the fluid being used and the ambient site conditions. The manufacturer accepts no responsibility in regard to such material and housing.

Warning

In orde r for the devic e to perfo rm correc tly and saf ely, it must be ship ped, stored, set up, mounted, operated and maintained properly.

2.6 Returning your flowmeter for servicing or calibration

Before sending your flowmeter back to us for servicing or calibration, make sure it is completely clean. Any residues of substances that could be hazardous to the environment or human health are to be removed from all crevices, recesses, gaskets, and cavities of the housing before the device is shipped.

Warning

The operator is liable for any loss or damage of any kind, including personal injury, decontamination measures, removal operations and the like that are attributable to inadequate cleaning of the device.

Any device sent in for servicing is to be accompanied by a certificate as specified in Sec tion 18!

The device is to be accompanied by a document describing the problem with the device . Please includ e in this docum ent the name of a c ontact per son that our te chnical service department can get in touch with so that we can repair your device as expeditiously as possible and therefore minimize the cost of repairing it.

2.7 Replacement of the transmitter electronics

Before replacing the transmitter electronics, read the safety instructions in Section 10 Installation and servicing.

Warning

Make sure that you abide by the applicable standards and regulations pertaining to electrical devices, device installation and process technology when replacing the transmitter electronics. The highly integrated electronic components in the device carry the risk of ESD

to EMC standards.

The exchange of electronic components or board is described in details in Section 9 Maintenance and repair.

IM-P309-02 MI Issue 2 5

hazards and are only protected when installed in the device pursuant

Caution

The com plete inser t is to be rep laced with a ll of its prin ted boards (exce pt for the memory chip (DSM)). This is particularly impor tant for the explosion-proof transmitter. The specified precision and interchangeability of the electronics are only guaranteed if the complete inser t is replaced.

2.8 Intended purpose

The electromagnetic flowmeter is to be used solely for measuring the volume flow of liquids, suspensions and pastes with conductivity ≥ 5 µS/cm (≥ 20 µS/cm demineralized cold water). The manufacturer accepts no responsibility for any damage or loss resulting from any other use or from improper use.

Before using corrosive or abrasive fluids, the operator must test the resistance of all wetted materials. We will be happy to assist you in testing the corrosion resistance of wett ed part s (for specia l fluids inc luding cle aning fluid s). However, sole respo nsibilit y for ensuring that the device is used in accordance with the manufacturer’s recommendations rests with the system operator. Minor changes of temperature, concentration or the degree of contamination in the process may cause changes in corrosion resistance. The manufacturer accepts no responsibility for any damage with respect to corrosion resistance of wetted materials in a certain application.

Intended use

Referring to the Installation and Maintenance Instructions, name-plate and Technical Information Sheet, check that the product is suitable for the intended use / application. The product listed complies with the requirements of the European Pressure Equipment Directive 97 / 23 / EC, carries the mark when so required. The product falls within the following Pressure Equipment Directive categories:

Product

ELM DN50 - - 2 -

ELM DN150 – DN200 - - 2 -

i) The ELM flow meter range has been designed for use on water / condensate which

are in Group 2 liquids of the above mentioned Pressure Equipment Directive. The product’s use on other liquids in Group 1 or Group 2 may be possible but, if this is contemplated, Spirax Sarco should be contacted to confirm the suitability of the product for the application being considered.

ii) Check material suitability, pressure and temperature and their maximum and minimum values. If the maximum operating limits of the product are lower

than those of the system in which it is being fitted, or if malfunction of the product could result in a dangerous overpressure or overtemperature occurrence, ensure a safety device is included in the system to prevent such over-limit situations.

iii) Determine the correct installation situation and direction of fluid flow.

iv) This product is not intended to withstand external stresses that may be induced by any system to which they are fitted. It is the responsibility of

the installer to consider these stresses and take adequate precautions to minimise them.

v) Remove all protective covers from all connections and protective packaging where

appropriate, before installation on high temperature applications.

Group 1

Gases

Group 2

Gases

Group 1 Liquids

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Group 2

Liquids

2.9 Packaging, storaging, transport

Be careful not to damage the device while unpacking it. The device should be stored in a clean, dry room until it is installed so as to prevent particulate matter from entering the device. Make certain that the ambient temperature in the room in which the device is stored lies within the prescribed range.

Check to ensure that the technical product data indicated on the deliver y note is consistent with the stipulated requirements. If, after the device is unpacked, it is sent elsewhere to be installed, the original packaging and transport protection inserts should be used.

2.10 Returning the device for repair and servicing

Note: According to German waste disposal legislation, it is the owner’s or customer’s respon sibilit y to dispose of ha zardous w aste. Thus, any d evices sent t o us for serv icing, including their crevices and cavities, must be devoid of any such material.

When sending a device for repair, please confirm your compliance with this regulation in writing. In the event any hazardous material is detected on or inside any device sent to us for servicing, we reserve the right to bill the customer for the cost of disposing of such material (see Section 19 "Decontamination certificate").

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3. General product information

3.1 Manufacturer

Manufactured for Spirax Sarco by Heinrichs Messtechnik GmbH Robert-Perthel-Str. 9 · D-50739 Köln Telephone: +49 221 49708 – 0, Fax: +49 221 49708 - 178 Internet: http://www.heinrichs.eu, Email: mailto:info@heinrichs.eu

3.2 Product type

Magnetic-inductive flowmeter based on Faraday’s law of induction

3.3 Product name

ELM

3.4 Designation/rating plate

Fig. 1 Transmitter Label

The rating plate states the following information:

Logo Supplier’s logo

Typ e Type designation

Ser. No. Serial number (for tracking reasons)

Tag No.

MF-Date Year of manufacture

DN Flange designation

PN Pressure stage of flange

Materials

T m Medium temperature range

T amb Ambient temperature range

C Sensor constant

Degrees of protection

CE Marking in accordance with the applied EC Directives

Operator’s measuring point number (if stated in the order)

Material of wetted parts such as pipe lining, material of electrodes and seal

Degrees of protection in accordance with DIN EN 60529:2000

Fig. 2 Main Label

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4. Steps prior to operation

It is essential that you read these operating instructions before installing and operating the device. The device is to be installed and serviced by a qualified technician only.

No instructions, wiring diagrams, and/or supplied software, or any portion

means, electronic, mechanical, photocopying or otherwise, without prior written permission.

Although the materials in the present document were prepared with extreme care, errors cannot be ruled out. Hence, neither the company, nor the programmer nor the author can be held legally or other wise responsible for any erroneous information and/or any loss or damage arising from the use of the information enclo

No express or implied warranty is extended in regard to the applicability of the present document for any purpose other than that described.

We plan to optimize and improve the products described and in so doing will incorporate not only our own ideas but also, and in particular, any suggestions for improvement made by our customers.

thereof, may be produced, stored, in a retrieval system or transmitted by any

We reserve the right to change the technical data in this manual in the light of any technical progress that might be made.

5. Applications

Theelectromagneticowmeterisusedtomeasureormonitorthevolumeowofuidswith

and without solids concentration, slurries, pastes and other electrically conductive media while minimizing pressure drops. The conductivity of the medium must be at least 5 µS/cm. Pressure, temperature, density and viscosity do not affect the volume measurements. Small quantities of solid par ticles and small gas pockets are also measured as part of the volume

o w.Alarge rnumb er of solid pa r tic lesorga spock et swillre sultinf ai lures and/ori na ccu racy

of measurement.

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6. Operational mode and system design

6.1 Operational mode

In 1832 Faraday suggested utilizing the principle of electrodynamic induction for measuring

owvelocities.HisexperimentsintheThames,thoughunsuccessfulduetosuperimposed polarizationef fects,arenonethelessregardedastherstintheeldofmagnetic-inductive owmeasurement. According to Faraday's law of electromagnetic induction, an electrical eldEisproducedinaconductiveliquidm ovingt hroughamagneticeldB at a velocity v in

accordance with the vector product E = [v x B].

Auid withaowvelocityv andaowrateQowingthroughatube(1) with an insulating lining (2) produces a measuring-circuit voltage Um at the two electrodes (4) at right angles

tothedirectionofowandthemagneticeldBgeneratedbytheeldcoils(3). The strength ofthismeasuring-circuitvoltageisproportionaltothemeanowvelocityandthereforethe volumeowrate.

6.2 System design

The electromagnetic ELM-***owmeter consists of a sensor, whichpicks upan induced m e a s u r i n g s i g n a l f r o m t h e m e d i u m  o w i n g t h r o u g h t h e p i p e , a n d a t r a n s m i t t e r w h i c h t r a n s f o r m s 

this signal into standardized output signals (4-20 mA or pulses). The sensor is installed in the pipe while the transmitter is mounted directly on the sensor.

Fig. 3

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7. Performance characteristics and environmental conditions

7.1 Measuring accuracy

7.1.1 M e a s u red erro r

+/- [0.3% of actual value + 0.0001 * (Q at 10 m/s)]

Accuracy

Flow velocity v [m/s]

Fig. 4

7.1.2 Repeatability

+/- [0.15% of actual value + 0.00005 * (Q at 10 m/s)]

7.1.3 Reference conditions

In accordance with DIN EN 29104 Fluid temperature 22°C ± 4 K Ambient temperature 22°C ± 2 K

Inletsectionof≥10xDNandoutletsectionof≥5xDN

7.2 Fluid conductivity

≥5µS/cm(≥20µS/cmfordemineralizedwater)

7.3 Influence of ambient temperature

-20°C to +60°C

7.4 Ambient temperature

- 20° Celsius to + 60°Celsius (-4°F to 140°F), below 0degC the readability of the LC display will be limited

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7.5 Ambient temperature range

-20°Celsius to + 60°Celsius (-4°F to 140°F) In the case of an outdoor installation, the device must be protected against direct solar irradiation with a weather shield.

7.6 Storage temperature

- 25°Celsius to + 60°Celsius (-13°F to 140°F)

7.7 Degree of protection

SG2b standard housing, IP68 (NEMA 6P).

Caution:

Ingress protection IP 68 is only achieved if suitable and tightly screwed down cable glands or conduits are used. If the cable glands are only tightened manually water may leak into the terminal compartment in the housing.

Danger:

Particular care must be taken if the window in the housing becomes fogged over or discolored because moisture, water or product might seep through the wire sheath into the terminal compartment in the housing!

Warning:

Electromagnetic compatibility is only achieved if the electronics housing is closed. Leaving the enclosure open can lead to electromagnetic disturbances.

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7.8 Process conditions

7.8.1 Fluid temperature

The data sheet/rating plate of the connected transmitter must be observed. With directly mounted transmitter on the sensor the heat entr y must be considered from the process to the transmitter.

7.8.2 State of aggregation

Liquid

7.8.3 Viscosity

No restrictions. The data sheet/rating plate of the connected transmitter must be observed.

7.8.4 Fluid temperature limit

The data sheet/rating plate of the connected transmitter must be observed. medium and the cleanliness of the electrodes.

7.8.5 Flow rate limit

The data sheet/rating plate of the connected transmitter must be observed.

7.8.6 Pressure loss

The data sheet/rating plate of the connected transmitter must be observed.

7.8.7 Empty pipe detection

7.9 Materials

7.9.1 Wetted parts

Parts Standard

Lining PTFE

Measuring and grounding electrodes St. st. 1.4571, Hastelloy C4

7.9.2 Non-wetted parts

Parts Standard

Flow tube Stainless steel 1.4571

Housing St. st. 1.4571, Hastelloy C4

DN 10 – 300 Varnished steel

Flange Varnished steel

Terminal box for remote mount transmitter Aluminum pressure casting, varnished

IM-P309-02 MI Issue 2 13

8. Installation/conditions for use

8.1 Receipt of goods and transport

8.1.1 Receipt of goods

Check the packaging and contents for damage. Inspect the supplied goods to ensure complete delivery and compare the consignment with your order specifications.

8.1.2 Transport

The protection caps should only be removed immediately before installation of the device in the pipe.

Never lift the devices by the mounted transmitter housing or terminal box for transport. When transporting heavy devices, use slings. Place these around both process connections. Do not use chains as these can damage the surface coating and the housing.

When transporting devices without lugs, and when looping the slings around the flow tube, the center of gravity of the entire device can be higher than both attachment points of the slings. When transporting the device ensure that it does not rotate or slip accidentally. This could cause injury.

Sensors with a nominal width of more than DN 150 should not be lifted by the sheet metal of the shell with a forklift truck. This could dent the sheet metal of the shell and damage the internal solenoid coils. There is also the risk that the device could roll off the forks.

Fig. 5

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8.2 Installation conditions

The installation location in the pipe must be selected so that the sensor is always fully filled with the fluid and cannot run empty. This can best be guaranteed if it is installed in an ascending pipe or drain.

The measuring principle is generally independent of the flow profile of the fluid provided no standing vortices reach into the area where the value is measured, such as downstream from elbows or half-open sliding valves upstream from the sensor. In these cases measures must be taken to normalize the flow profile. Practical experience ¬has shown that in most

casesastraightinletsectionof≥5xDNandanoutletsectionof≥2xDNoftheratedwidth

of the sensor is sufficient. The occurrence of strong electromagnetic fields in the vicinity of the installed sensor is not permitted.

In order to be able to perform flow and return measurements, both sides of the sensor must be provided with a straight pipe section with the rated width of the sensor and a length of 5 DN of the rated width of the sensor. It is advisable to install actuators, such as regulating or shut-off devices, downstream from the sensor. The flow direction is marked on the sensor with an arrow. When mounting sensors, always observe the specified screw torques.

The electrical system can be taken into operation when the sensor and the cables have been installed and connected. In order to prevent measuring errors caused by gas pockets in the fluid and damage lining of the sensor caused by negative pressure, the following points must be observed.

8.2.1 Long pipe systems

As pressure surges may occur in long pipes systems, the regulating and shut-off devices must be installed downstream from the sensor. When mounted in vertical pipes - in particular in flow tubes with PTFE lining and in case of higher operating temperatures - the regulating and shut-off devices must be installed upstream from the sensor. (Danger of vacuum might be involved!)

8.2.2 Pumps

Do not mount the sensor on the suction side of a pump. (Danger of vacuum!)

8.2.3 Bypass

In order to easily dismount, empty and clean the sensor, a bypass pipe may be installed. The bypass with a blind flange permits the fluid pipe to be cleaned without having to dismount the flowmeter. This is recommended for highly soiling fluids.

8.2.4 Flow tube lining

As the flow tube is lined with PTFE, the flowmeter must be installed with special care. The tube lining is bordered at the flanges (seal). This must not be damaged or removed as it prevents the fluid from penetrating between flange and flow tube destroying the electrode insulation.

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8.3 Installation

Screws, bolts, nuts and seals are not supplied and must therefore be provided by the operator.

Install the sensor between the pipes. Please observe the required torques stated Section

8.3.4. The installation of additional grounding rings is described in Section 8.3.3. Use for the flanges only seals in accordance with DIN 2690. Mounted seals must not reach into the pipe cross section.

Caution!

Do not use conductive sealing compounds such as graphite. This could result in a conductive layer on the inside of the flow tube that shortcircuits the measuring signal.

8.3.1 Installation in pipes with larger nominal sizes

The flowmeter can also be installed in pipes with larger nominal sizes by using pipe tapers (e.g. flange transition pieces in accordance with DIN EN 545). However, the resulting pressure loss must be taken into consideration. In order to avoid flow interruptions in the flow tube, a

reducingangle≤8°forthetapersshouldbeadheredto.

8.3.2 Horizontal and vertical installation

The flowmeter can be installed wherever required, whereby the intended x-y electrode axis should run almost horizontal. A ver tical Electrode axis should be avoided as otherwise the accuracy could be af fected by the gas pockets or the solid particles in the fluid.

Incorrect installation

for horizontal pipe system

Correct installation system

Fig. 6

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Installation examples

In order to avoid measuring errors caused by gas pockets and lining damage caused by negative pressure, the following points must be observed:

Highest point in pipe system. Air bubbles will accumulate in the tube. Incorrect measurement!

Fig. 7 Preferred assembly locations

Free inlet or outlet section

Preferably install the device in a drain. The empty pipe detection circuit in the transmitter is an additional safety feature for recognizing empty or partially filled pipes.

Horizontal lining

Installation in a slightly ascending pipe.

Fig. 8

Fig. 9

Caution! There is the danger of

accumulations of solids in the drain. It is advisable to arrange for a cleaning aperture in the pipe.

Fall pipe over five meters long

In case of fall pipes that are more than five meters long, arrange for a syphon or a venting valve in order to avoid a negative pressure in the pipe and damage to the lining. In addition, this measure prevents the flow from stopping so that air pockets can be avoided.

> 5m

Fig. 10

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Long pipes

Always install regulating and shut-off devices downstream from the sensor. (Danger of vacuum!)

Fig. 11

Installation of pumps

Do not install flowmeters on the suction side of pumps in order to avoid a negative pressure and damage to the tube lining.

Fig. 12

If necessary, arrange for pulsation dampeners when using piston, diaphragm or hose pumps.

Please consider space requirements with respect to a potential uninstallation of the device.

8.3.3 Grounding

For safety reasons and to ensure faultless operation of the electromagnetic flowmeter, the sensor must be grounded. In accordance with VDE 0100 Part 410 and VDE 0100 Part 540 the grounding connections must be at protective conductor potential. For metrological reasons, the potential should be identical to the potential of the fluid. The grounding cable should not transmit any interference voltage. For this reason do not ground other electrical devices with this cable at the same time.

The measuring signal tapped at the electrodes is only a few millivolts. Correct grounding of the electromagnetic flowmeter is therefore an important prerequisite for exact measurement. The transmitter requires a reference potential to evaluate the measured voltage on the electrodes. In the simplest case the non-insulated metal pipe and/or the connecting flange may be used as a reference potential.

In case of pipes with an electrically insulating lining or pipes made of plastic, the reference potential is picked up from a grounding electrode. This establishes the necessar y conductive connection to the fluid and is made of a chemical-resistant material.

The grounding cables are not included in the scope of supply and must be provided by the plant operator.

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8.3.3.1 Grounding the ELM flowmeter

Earth bonding

- Uninsulated metal pipes only (not required for plastic pipe installations)

Pipe PipeELM

Seal

Pipe

Flanges

Fig. 13

Seal

Ground Wire: Min 4mm

Protective

Earth

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8.3.4 Torques for studs and nuts

Electromagnetic flowmeters must be installed in the pipe system with special care due to the fact that the flow pipe lining is made of PTFE which is malleable under pressure. If the flange nuts are tightened too much, the sealing surface will deform. If the seals are supposed to function properly, the correct torque is highly important. Tighten the nuts crosswise, so that the process connections are tight. When tightening the nuts for the first time, approximately 50% of the required torque should be reached, and for the second time, the torque should be 80%. The required torque should reach 100% when the nuts are tightened for the third time. For higher torques it is advisable to use protectors.

The following tables state the maximum torques:

Nominal size

(mm)

DN25 PN40 4 x M12 25

DN32- 40 PN40 4 x M16 45

DN50 PN40 4 x M16 65

DN65 PN16 4 x M16 85

DN80 PN16 8 x M16 55

DN100 PN16 8 x M16 55

DN150 PN16 8 x M20 100

DN200 PN16 12 x M20 95

Nominal size

(inch)

1" Class 300 4x⅝" 15

1 ¼"-1 ½" Class 300 4 x ¾" 35

2" Class 300 8x⅝" 25

2 ½" C lass 15 0 4x⅝" 85

3" Class 150 4x⅝" 80

4" Class 150 8x⅝" 55

6" Class 150 8 x ¾" 105

8" Class 150 8 x ¾" 145

DIN Pressure

rating (bar)

ASME Pressure

rating (lbs)

Studs Maximum torques

(Nm)

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8.4 Wiring

Caution!

Installation and wiring may only be per formed when the auxiliary power is switched off. Non-compliance can result in electric shock and irreparable damage to electronic parts.

8.5 Nominal size and ranges

Volume flow depends on the f low velocity and the nominal size of the flowmeter. The electromagnetic flowmeter has been designed in such a way that it operates within the range of the flow velocities occurring in practical applications. The flow velocities have an upper range value of between 0.5 m/s and 10 m/s.

The nominal size DN of the sensor must be selected, if possible, in such a way that the flow velocity does not drop below the upper range value of 0.5 m/s. In case of fluids with solid particles, the flow velocity should range between 3 m/s and 5 m/s in order to prevent sedimentation in the sensor.

Size Litres / sec. m3/h

Qmin Qmax Qmin Qmax

DN25 (1") 0.24 4.89 0.88 17.6

DN32 (1¼") 0.40 8.03 1.45 28.9

DN40 (1½") 0.54 10.75 1.94 38.7

DN50 (2") 0.87 17.33 3.12 62.4

DN65 (2½") 1.56 31.11 5.61 112

DN80 (3") 2.27 45.28 8.17 163

DN100 (4") 4 80 14.42 288

DN150 (6") 9 186 33.96 671

DN200 (8") 17 330 59.99 1188

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10 120 130 140 150

8.6 Ambient conditions

Ambient temperature range

For fluid temperatures > 60°C

As the sensors are an element of the pipe, these are normally thermally isolated when installed to save energy and prevent accidental physical contact. Due to the process temperature heat is introduced through the support for securing the integral mount transmitter or the terminal box. For this reason the thermal insulation of the sensor should not extend over more than half of the support. It is essential to prevent inclusion of the installed transmitter or the terminal box in the thermal insulation.

The maximum permissible fluid temperature range is stated on the rating plate of the respective version.

8.6.1 Maximum ambient temperature depending on the fluid temperature

Max. ambient temperature (°C)

60 70 80 90 100 1

Max. fluid temperature (°C)

Fig. 14

8.6.2 Storage temperature range

The storage temperature range is identical to the ambient temperature range.

8.6.3 Climatic category

In accordance with DIN EN 60654-1; not weather-protected Class D1 locations exposed directly to open-air climate.

IM-P309-02 MI Issue 222

8.6.4 Ingress protection

The sensor meets the requirements of the protection class IP 6 7. The following must be observed to ensure compliance with protection class IP 67 when the device has been installed or serviced:

- The housing seals must be clean and undamaged when placed in the sealing groove. If

necessary the seals must be cleaned or replaced.

- Tighten the screw cap of the transmitter.

- The cables used for connection must comply with the specified outer diameter for the

cable glands used.

- Tighten the cable glands firmly.

- Loop the cable in front of the cable gland. Any moisture running along the cable can then

drip off and not penetrate the device. Always install the device so that the cable gland does not face upwards.

- Any unused cable glands must be closed with a plug which is suitable for the respective

protection class.

Fig. 15

8.6.5 Shock resistance/vibration resistance

The flowmeter should be protected from extreme shocks and vibrations, which could cause damage.

Maximum permissible shock/vibration: 15 m/s2 (10 to150 Hz).

IM-P309-02 MI Issue 2 23

8.7 Process pressure

The maximum permissible process pressure PS is stated on the rating plate and depends on the fluid temperature.

PN40

PN25

bar

PN16

PN10

PN6

°C

Fig. 16

8.8 Fluid temperature

The maximum permissible fluid temperature of the device depends on the version and the lining material of the flow tube and is stated on the rating plate. The German Industrial Safety Act stipulates that very cold or hot components of working equipment must be provided with guards which prevent physical contact of workers with the respective parts. For this reason and also to save energy, in practical applications at temperatures of > 60°C, all pipes and installed measuring instruments are normally thermally insulated.

Refer to Section 8.6 for information on the relation between the fluid temperature and the ambient temperature limits.

The temperature ranges for use of the device are listed below for the lining materials

Lining material Fluid temperature ranges

PTFE - 20°C to 150°C

IM-P309-02 MI Issue 224

8.9 Electrical connection

Mains: 24 Vdc ±15%

Power input: 10 VA

5x20mm DIN 41571-3 Voltage = 24 Vdc

Fuse:

Current = 1 AT Rated voltage = 250 Vac Breaking capacity = 80A / 250Vac e. g. Fa. Wickmann series 201

8.10 Process terminals

Terminals located at the rear side of the transmitter’s housing.

Fig. 17

IM-P309-02 MI Issue 2 25

8.11 Output Signal

8.11.1 Isolation

All signal outputs are electronically isolated from each other and ground (PE)

8.11.2 Analog output

A single 0/4-20mA current output is fitted with optional HART communications and can be configured to output flow rate in volumetric or velocity units.

8.11.3 Pulse output

A single pulse output is fitted. Passive via optocoupler: U = 24 V Umax = 30 V Imax = 60 mA Pmax = 1.8 W

Pulse duration: 50ms (default value)

Pulse duration adjustable from: 0.1 to 2000ms

Mark-to-space ratio: 1 to 1 if the maximum pulse duration is not met

When adjusting the pulse duration, a check is carried out to ensure the pulse duration does not exceed the upper limit. If the upper limit is exceeded an error message will be displayed.

Frequency: fmax = 1 kHz

Pulse value: 1 pulse/unit. The pulse value can be multiplied by a factor between 0.001 and

100.0 in decade increments of the selected units e.g. m3

Status output: for for ward and reverse flow, MIN and MAX flow rate or alarm

8.11.4 Failure signal

A failure in the meter can be indicated via the current output or the status output.

The current output can be set to alarm of I < 3.8mA of I > 22mA.

The status output can be configure as a make or break output.

8.11.5 Current output load

Standard version: 600 Ohms

HART version: minimum load > 250 Ohms

8.11.6 Damping

Programmable: from 0 to 60 seconds

8.11.7 Low flow cut-off

Configurable: from 0 to 20% of maximum flow.

If the measured value is lower than the low flow cut-off set value the flow rate will show zero and the analogue output will switch to 0/4 mA and the pulse output will stop generating pulses.

The configurable hysteresis only takes effect on one side of this limit.

IM-P309-02 MI Issue 226

8.12 Mains and signal terminals

ELM mains and signal terminals

+ Loop

- Loop

+ Status

- Status

+ Pulse

- Pulse













Fig. 18

Terminal Label Polarit y Function

1 PE Protective conductor

2 N Mains

3 L Mains

4 Pulse - Pulse output (passive)

5 Pulse + Pulse output (passive)

6 Status - Status output (passive)

7 Status + Status output (passive)

8 Current Out. - Current output (active)

9 Current Out. + Current output (active)







Process terminals

Fuse

IM-P309-02 MI Issue 2 27

8.13 HART® connection

A number of options are available for HART® communication. However, for all these options loop resistance must be less than the maximum load specified in Section Error! Reference source not found. Error! Reference source not found. (Error! Bookmark not defined. ). The HART®-Interface is connected via terminals 8 and 9 of the active current output. The minimum

loadimpedancemustbe250Ω.

8.14 Wiring diagram for the separate version

For cable specification see section 8.16. The outer shield has to be connected to the metalized cable glands at both ends. The inner shields are connected to each other and are plugged into the terminal labeled "Schirm / shield". They are related to the potential of the function earth FE. (See also section 11.2 Potentials.)

Transmitter

Note: terminal diagram Schematic representation of a

SP-

SP+

wiring between flow sensor and remote mounted transmitter. Terminal diagram is always shown is the documentation of flow sensor.

Caution:

Do not connect or disconnect the field coil cable before the primary power of the meter has been disconnected!

SP-

Sensor

Fig. 19

SP+

IM-P309-02 MI Issue 228

8.15 ELM sensor terminals

Sensor terminals

Terminal Label Polarity Function

1 FE Screen field coil 2 SP - - Field coil 3 SP + + Field coil 4 FE Shield / Functional ground 5 E1 Elektrod 1 6 E2 Elektrod 2

Observe also the advice

in chapter 7 Environmental conditions.

1 2 3 4 5 6

SP-

SP+FEE1

Fig. 20

8.16 Cable specification

If the transmitter is mounted separately from the sensor, the following cables must be used:

Electrode cable and field coil cable as shielded t wisted pair. In order to protect the cable from external interference, the twisted-pair wires are covered by an additional, overall shield e.g. LIYCY-CY TP 2 x 2 x 0.25 mm².

At cable length more than 10m a wire cross section of at least 0.75 mm² is required e.g. SLIYCY-C11Y ( 2 x ( 2 x 0.75 mm²)).

The outer shield is grounded by means of special EMC-compliant cable glands at both ends of the cable.

IM-P309-02 MI Issue 2 29

9. Maintenance and repair

The transmitter ELM is designed as maintenance-free performance. It contains no parts, which have to be replaced or adjusted cyclically.

While commissioning or maintenance, mains power must be switched off. Do not connect or disconnect the wirings between sensor and transmitter while power is on!

9.1 Mains fuse

The mains fuse is located in the terminal compartment. Before exchanging the fuse, the power has to be switched off. Check, if voltage free. The fuse may only be exchanged by the exactly same kind of fuse! (See also section 8.9 Electrical connection.)

9.2 Replacement of terminal board

The terminal board is located in the terminal compartment. Before exchanging the board, the power has to be switched off. Check, if voltage free. The board may only be exchanged by the exactly same kind of board.

To exchange the terminal board, all pluggable connectors have to be released. The board is fixed by 4 screws. To exchange the board, these screws have to be loosened.

Installing the board, the screws have to be secured again by toothed washers. Only after all connectors are plugged in, the power can be switched on again.

9.3 Exchange of transmitter electronic

The transmitter electronic may be exchanged only as complete module. With the exchange of individual components the transmitter is afterwards no longer calibrated neither regarding its measuring characteristics nor its analog outputs. The exchange has to be done as described in the following:

- Mains power off.

- Unclamp the 6 pole tab connector in the terminal compartment.

- Remove the control unit BE2 or decoration foil inside the electronic compar tment.

- Unplug the green connector on the power supply board.

- Disconnect the sensor’s wires on the power supply board.

- Screw out all 3 studs consistently and simultaneously.

- Pull out carefully the electronic boards.

- The data memory chip (DSM) has to be plug out of the socket and to be placed into the

same socket of the new electronic stack.

- Insert the new electronics and feed the tab connection again into the terminal compartment

through the hole in the compartment partitions wall.

- Reverse to item 1 to 6 of this list assemble the transmitter.

- Before powering on, check all connectors to be plugged in correctly and all wires and

devices are fixed.

After the exchange the transmitter is calibrated by the take-over of the data memory chip (DSM) for the sensor. All totalized counts and settings are taken on.

IM-P309-02 MI Issue 230

10. Dimensions and weight

10.1 Dimension drawing of meter assemblies

Ø110

108

205

M20 X 1.5 cable entry point (2)

115

ØC

ØA

ØA B ØC D

DN 25 (1" )

PN40

ASME

Class 300

PN16

ASME

Cla ss 150

IM-P309-02 MI Issue 2 31

DN 40 (1½") 290 92

DN50 (2") 295.5 107 5.4

DN65 (2½") 307 127 5.4

DN80 (3") 313 138

DN100 (4") 323 162

DN150 (6") 351 218 134 10.4

DN200 (8") 379 274 219 12.4

284

104

Weight (kg)

(approximate values)

4.4DN 32 (1¼" ) 82

6.4

10.2 Installation and servicing

The devices described in this manual are to be installed and serviced only by qualified technical personnel.

Warning

Before servicing the device, it must be completely switched off, and disconnected from all peripheral devices. The technician must also check to ensure that the device is completely off-circuit. Only original replacement parts are to be used.

Spirax Sarco accepts no liability for any loss or damage of any kind arising from improper operation of any product, improper handling or use of any replacement part, or from external electrical or mechanical effects, over voltage or lightning. Any such improper operation, use or handling shall automatically invalidate the warranty for the product concerned.

Contact our customer service department if your device needs repair or if you need assistance in diagnosing a problem with your device

11. Commissioning

11.1 Installation of magnetic-inductive flowmeters

At the installation of the magnetic-inductive flow sensor the instructions and notes of the assembly instructions and operating manuals have to be followed. Also, observe the grounding, potential equalization and internal grounding guidelines.

11.2 Potentials

All outputs are electrically isolated from the auxiliary power, the sensor circuit and from each other. The housing and the interference suppression filters of the power supply are connected to PE.

The electrodes and measuring electronics are related to the potential of the function earth FE of the sensor. FE is not connected to PE, but may be connected with each other in the sensor junction box. If the sensor is grounded by using ground disks (earthing rings), these must in connected with the function earth FE.

At a separate assembly of sensor and transmitter the outer screen of the connecting cable is connected to the transmitter housing and has PE potential. The inner screens of the electrode line are connected to FE inside the junction box of the sensor and to the mass (Gnd) of the transmitters electronics.

Details of all wirings, terminals and drawing can be found in the section 8.9 Electrical connection .

IM-P309-02 MI Issue 232

11.3 Cathodic protective units

Using a cathodic protective unit to avoid corrosion, which put a voltage to the tube wall, it must be connected to terminal FE. The transmitter boards, control panel and internal switches are on the same potential as FE.

Warning

According to EN 50178:1997 all electrical circuits with protective safety isolation without any protection against contacts must observe the following maximum voltages: Maximum AC voltage (root mean square value) 25 V Maximum DC voltage 60 V

It is strictly forbidden to connect FE to any higher voltage!

11.4 Zero point calibration

In order to ensure that precise measurements are obtained, zero point calibration is to be realized the first time the device is put into operation and before any regular operations are carried out. Zero point calibration is to be carried out using a fluid.

The zero calibration procedure is as follows:

- Install the sensor as described in the manufacturer’s instructions.

- Check to ensure that the sensor is completely filled with fluid and that there are no gas

bubbles in the flow tubes.

- Define the process conditions such as pressure, temperature and density.

- Close a potential shut-off device behind the sensor.

- Operate the transmitter in accordance with the instructions in chapter 11.4 Zero point

calibration.

- Make sure that sufficient time is allowed for the electronics to warm up.

- Allowing fluid to flow through the sensor during the zero calibration procedure will skew

the zero point and result in false readings.

11.5 Startup conditions

The device is not subject to specific startup conditions. However, pressure surges should be avoided.

IM-P309-02 MI Issue 2 33

12. System design

The meter can be used to per form measurements with any liquid, conductive media, providing that the sensor’s material is suitable for the product being used.

12.1 Standard version

As standard ELM has 1 active 0/4 … 20 mA analogue output, 1 passive pulse or frequency output and 1 passive status output.

12.2 Display and Keypad

A LCD display with backlight is a standard feature. The display shows measured values as well as diagnostics. With 6 keypads customers are able to configure comfortable and simple the transmitter without any other tool.

Fig. 21

12.3 Optional equipment

12.3.1 HART-Interface

An analog 0/4–20 mA output is a standard feature and digital data transmission via HART® protocol as an optional feature of the device. A retrofit by customer is not possible.

12.3.2 Empty pipe detection

Transmitters, which are equipped with a control unit BE3, have an on and of f switch able empty pipe detection. The operating reliability depends on the conductivity of the liquid medium and the cleanliness of the electrodes. As bigger the conductivity is, as more reliable operates the empty pipe detection. Insulation coatings on the electrodes surface worse the empty pipe detection.

IM-P309-02 MI Issue 234

12.3.3 Data memory chip DSM

The replaceable data memory chip (DSM) is an EEPROM device in DIL-8 housing, located in a socket on the power supply board. It contains all characteristic data of the sensor e.g. sensor constant, version or serial number. Consequently, the memory module is linked to the sensor and in case of a transmitter replacement it has to remain by the sensor!

After replacing the transmitter or its electronics, the DSM will be installed in the new transmitter. After the measuring system has been started, the measuring point will continue working with the characteristic values stored in the DSM. Thus, the DSM offers maximum safety and high comfort when exchanging device components.

Electronic, Power supply board ELM

Slot DSM

Fig. 22

At any exchange watch the polarity of the memory chip. Pin 1 is signed by a dot or a notch.

12.3.4 Safety of operation

A comprehensive self-monitoring system ensures maximum safety of operation.

Potential errors can be reported immediately via the configurable status output. The corresponding error messages will also be displayed on the transmitter display. A failure of the auxiliary power can also be detected via the status output. When the auxiliary power fails, all data of the measuring system will remain in the DSM (without back-up battery). All outputs are electrically isolated from the auxiliary power, the sensor circuit and from each other.

IM-P309-02 MI Issue 2 35

13. Configuration and operation

13.1 Introduction

The ELM can be operated depending on equipment by using the HART® interface.

In the following, the ELM operation and parameterization using the keypad are described. The keypad is located in the electronic compar tment and covered by an inspection window.



LC Display

Keypad

Escape

Enter

Cursor up

Cursor lef t

Cursor down

Cursor right

Fig. 23

13.2 Display

The ELM has an integrated back lighted, alphanumeric display with two 16-character lines (format 16 x 60 mm). Measurement data and settings can be read directly from this display.

TheLCDdisplayisdesigned beoperatedat temperatures rangingfrom− 20°C to +60°C

(-4° F to 140°F) without incurring any damage. However, at freezing or near-freezing temperatures, the display becomes slow and readability of the measured values is reduced. At

temperaturesbe lo w−10C °(14°F),onlystaticvalues(parametersettin gs)ca nb ed is pl ayed.

At temperatures exceeding 60 C° (140°F), contrast decreases substantially on the LCD and the liquid crystals can dry out.

IM-P309-02 MI Issue 236

14. Operating modes

Functional class

Function with

numerical Input

Function with

numerical Input

Display

Legend

Numerical Input

153.40

Function

value selected

from list

Function

value selected

from list

Selection

[no]

___________

no yes

Parameter level

Headline

Main menu

Menu level subpoint

Functionial class

The ELM can be operated in the following modes:

1. Display mode: In display mode, measured values can be displayed in various combinations and ELM settings can also be displayed. Parameter settings cannot be changed in this mode. Display mode is the standard (default) operating mode when the device is switched on.

Programming mode: In programming mode, ELM parameters can be redefined. After entering the correct password, changes that are permissible for the customer (customer password) or all functions (service password for technicians) can be realized.

14.1 Operation

14.1.1 Operation interface

Functional classes are displayed as headings beneath which displays and parameters are shown in logical groups.

Beneath this is the menu level, which lists all measured value displays or the headings for their underlying parameters (parameter level).

All functional classes are interlinked horizontally, while all subpoints that are assigned to a functional class are displayed beneath the relevant class.

Fig. 24

14.1.2 The keys and their functions

There are sic keys to change the settings.

IM-P309-02 MI Issue 2 37

Caution!

Do not press these keys with sharp or sharp-edged objects such as pencils or screwdrivers!

Cursor keys: Using the cursor keys, the operator can change numerical values, give YES/

NO answers and select parameters. Each key is assigned a symbol in the following table:

Descriptor Symbol

Cursor key, arrow to the right >

Cursor key, arrow to the left <

Cursor key, arrow to the top >

Cursor key, arrow to the bottom <

Esc key: The "Esc" key allows you to cancel the current action. Pressing Esc moves you to the next higher level where the operator can repeat the action. Pressing Esc twice moves you directly to the MEASURED VALUES functional class.

ENTER key: Pressing  (ENTER key) moves you from the menu level to the parameter level. You confirm all entries with the  key.



LC Display

Keypad

Escape

Fig. 25

Enter

Cursor up

Cursor lef t

Cursor down

Cursor right

14.1.3 Functional classes, functions and parameters

Functional classes are written in all upper case letters (headings). The functions beneath each functional class are written in upper and lower case.

The various functional classes and functions are describes in Section 15.11„ UMF2 (B) transmitter functions".

The lower lines contain the following elements:

- Informational texts

- YES/NO answers

- Alternative values

- Numerical values (with dimensions, if applicable)

- Error messages.

If the user attempts to modify values for any of these parameters without entering the required password, the message "Access denied" will be displayed (see also section 14 Operating modes and 14.1.3.3 Passwords)

IM-P309-02 MI Issue 238

14.1.3.1 Selection window / make a selection

In the selection window, the first line of the LCD always contains the heading, while the second line displays the current setting. This setting is shown in square brackets if the system is in Programming mode.

Function name

[Selection]

In Programming mode (see section 14 Operating modes), i.e. after a password has been entered (see 14.1.3.3 Passwords and 15.2 PASSWORD functional class ), the operator can navigate to the desired setting by using the  key or the key and the operator can then confirm your selection by pressing  (ENTER key). To retain the current setting, press Esc.

14.1.3.2 Input window / modify a value

In the input window, the first line of the LCD always shows the heading, while the second line shows the current setting.

Example:

Function name

-4,567 Unit

These modifications can only be made in Programming mode (refer to 14 Operating modes), which means that a correct password (see 14.1.3.3 Passwords and 15.2 PASSWORD functional clas) must be entered. To move the cursor from one decimal place to the next, use the < or > keys. To increase the value of the decimal place just under the cursor by "1," use the  key, and use key to lower the number by 1. To change the minus and plus sign, place the cursor in front of the first digit. To confirm and apply the change, press enter. To retain the current value, press Esc.



14.1.3.3 Passwords

Programming mode is password protected. The customer password allows all changes to be made that are permissible for customers. This password can be changed when the device is first put into operation. Such changes should be kept in a safe place.

The ELM customer password in the device when delivered is 0002.

The service password allows for modification of all ELM functions. This password is not given to customers.

For further information on customer passwords, see Section 15.2 PASSWORD functional class.

IM-P309-02 MI Issue 2 39

15. ELM functions

The software functions of the ELM transmitter are divided into functional classes, are arrayed in a circle and can be navigated by using the < or > cursor keys. To go back to your starting point (the measured values functional class) press Esc.

Fig. 26

IM-P309-02 MI Issue 240

In the following, all software functions that can be accessed using the customer password are described. Functions that are only accessible to the vendor (service functions) are not described in the present document.

15.1 Measured values functional class

The measured values functional class contains all functions for displaying the measured values.

Fig. 27

IM-P309-02 MI Issue 2 41

15.1.1 Volume flow rate

If you select the function "volume flow," the following will be displayed (example):

Volume flow

100.0 l/h

The LCD shows the current volume flow rate. You define the display unit in the functional class FLOW using the function "volume flow unit".

15.1.2 Forward flow counter 1

Forward flow counter 1 and forward flow counter 2 are independent counters that can also be reset separately. With counter 1, for example, you can measure the yearly or monthly volume. If you select the function "forward flow counter 1", the following will be displayed (example):

Counter 1 forw.

+ 000001.0 l

The LCD shows the current value of forward flow counter 1. You define the display unit in the functional class COUNTERS using the function "unit of counter".

15.1.3 Forward flow counter 2

The function is identical with the function of forward flow counter 1. For example, forward flow counter 2 can be used as a daily counter. If you select the function "forward flow counter 2", the following will be displayed (example):

Counter 2 forw.

+ 000001.0 l

The LCD shows the current value of forward flow counter 2. You define the display unit in the functional class COUNTERS using the function "unit of counter".

15.1.4 Reverse flow counter

If you select the function "reverse flow counter," the following will be displayed (example):

Counter reverse

000000.0 l

The LCD shows the current value of the reverse flow counter. You define the display unit in the functional class COUNTERS using the function "unit of counter".

15.1.5 Flow velocity

If you select the function "flow velocity," the following will be displayed (example):

flow velocity

1.5 m/s

The LCD shows the current value of the mean flow velocity of the medium. The display unit is always meters per second (m/s). The mean velocity is calculated from the measured volume flow and the flow area of the meter tube. In order to calculate the flow area of the meter tube, enter the inside diameter of the meter tube. To do so, use the "inside diameter" function in the functional class SETTINGS SENSOR + ELM.

IM-P309-02 MI Issue 242

15.1.6 Relative flow rate

The relative flow rate is the percentage ratio of the (current) volume flow and the entered upper range value of the volume flow. You set this upper range value in the functional class FLOW using the function "volume flow QV URV."

The calculation of the relative flow rate is based on the following formula:

relative flow rate = 100% x (Qabs – lower range limit) / (upper range limit – lower range limit)

If you select the function "relative flow," the following will be displayed (example):

Relative flow

95.3%

15.1.7 QV + Forward flow counter

If the function "QV+ forward flow counter 1" is selected, in the first line the actual flow will be displayed:

XXX.X l

XXX.XX l/h

In the second line the LCD shows the current value of the forward flow counter 1. The displayed unit is defined in the functional class FLOW using the function "volume flow unit". The unit of the counter is defined in the functional class COUNTER using the function "counter unit".

15.1.8 QV + Forward flow counter 2

If the function "QV+ forward flow counter 2" is selected, in the first line the content of the actual flow will be displayed:

XXX.X l

XXX.XX l/h

In the second line the LCD shows the current value of the forward flow counter 2. The displayed unit is defined in the functional class FLOW using the function "volume flow unit". The unit of the counter is defined in the functional class COUNTER using the function "counter unit".

15.1.9 QV + flow velocity

If the function "QV + flow velocity" is selected, the following will be displayed:

XXX.X l/h

XXX.X m/s

The first line shows the actual volume flow rate and the second line the mean flow velocity of the medium. The displayed volume flow unit is defined in the functional class FLOW using the function "volume flow unit ", the unit of the medium’s velocity is always m/s.

IM-P309-02 MI Issue 2 43

15.1.10 Display mode during startup

By choosing the Display mode during startup function the operator can define the default display. After the operator switched the device on and did not touch any keys for a longer period of time, the defined default display will be shown.

Display mode

(QV)

According to the description in Section 14.1.3.1 "Selection window / make a selection", one of the following default displays can be selected. QV (volume flow rate), Counter 1 forward flow, Counter 2 forward flow, Counter reverse flow, Vel oci ty, QVabs + QVrel, QV + counter 1, QV + counter 2, QV + velocity, and raw values.

15 .1.11 Raw value s

The "Raw value display" supports fault diagnostics and trouble shooting. Please inform our service department about the clear text error messages and contents of the "Raw value display".

xxx.xxx ggooo

iiii gguuu

The displayed values are decimals and have the following meaning:

xxx.xxx: Is a gauge for the measured electrode voltage. ggooo: Is a gauge for the upper value of the reference calibration. iiii: Is a gauge for the current to generate the field coil’s magnetic field. gguuu: Is a gauge for the lower value of the reference calibration.

IM-P309-02 MI Issue 244

15.2 Password functional class

The password functional class is comprised of the functions for entering and changing the customer password and entering the service password. To cancel the current action, press Esc.

Fig. 28

15.2.1 Customer-password

After selecting the Customer password function and pressing enter, the following will be displayed:

Password?

0000

According to the description in Section 14.1.3.2 "Input window / modify a value ", the password can be changed.

If the entered password is correct, the following message will be displayed:

Password

valid

If the entered password is not correct, the following message will be displayed:

Password

invalid

IM-P309-02 MI Issue 2 45

The customer password in the device when delivered is 0002.

A valid customer password allows all sof tware parameter changes to be made that are permissible for customers. After the operator switched the device off or did not touch any keys for about 15 minutes, the authorization to change settings related to password entry will automatically be canceled. If the operator does not enter a valid password, all settings can be displayed but not changed. Parameter changes via HART may be carried out any time without entering password.

15.2.2 Change customer password

After entering a valid customer password, you may change the existing password and enter a new one. After selecting the Change customer password function and pressing enter, the following will be display

Enter New password

0000

According to the description in Section 1.2.3.2 "value" the current value can be changed.

Press  to confirm and save the new password. Make sure that you entered the desired password!

A copy of the password should be kept in a safe place. Reactivation of a transmitter at the vendor’s site due to a lost password is not part of our warranty!

15.2.3 Service password

You do not need the service password for setting the functions necessary for operation.

The service password is reserved for service technicians and not provided to customers. Correct settings are essential for proper operation of the device (e.g. parameterization and calibration values).

IM-P309-02 MI Issue 246

15.3 Counter functional class

The counters functional class is comprised of the following functions:

Fig. 29

To change the current settings, enter the customer password. Otherwise, the settings can only be displayed but not changed. To cancel the current action, press Esc.

IM-P309-02 MI Issue 2 47

15.3.1 Unit of counters

After choosing the Unit of counters function and pressing enter, the current forward and reverse counter unit will be displayed:

Accumulation of:

(kg)

According to the description in Section 14.1.3.1 Selection window / make a selection, one of the following units can be selected.

Volume units: m³ and l, as well as USG, UKG, ft³ or Mass units: kg and t.

When the unit is changed, the counters will be reset to 0.00 automatically. The mass unit only makes sense if density factor has been programmed for mass flow calculation. Press  to confirm and save the selection. Forward and reverse counters will now show the selected unit.

15.3.2 Reset counter

The ELM has 3 independent totalizing counters. Counter 1 and Counter 2 for forward flow and a reverse flow counter. Each of them can be reset individually on the initial value 0.00.

To reset one of the totalizing counters, you definitely need to toggle to [yes].

Reset counter

(no)

According to the description in Section 14.1.3.1 Selection window / make a selection, "yes" or "no" can be selected. By pressing Esc or toggling to (no) the operator can cancel the current action without changing the counter readings.

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15.4 Measurement processing functional class

The measurement processing functional class is comprised of all functions that affect the processing of the measured values.

To change the current settings, enter the customer password. Otherwise, the settings can only be displayed but not changed. To cancel the current action, press Esc.

Fig. 30

IM-P309-02 MI Issue 2 49

15.4.1 Damping

The damping value is intended to dampen abrupt flow rate changes or disturbances. It affects the measured value display and the current and pulse outputs. It can be set in inter vals of 1 second from 1 to 60 seconds. Af ter choosing the Damping value function and pressing enter, the following selection field will be display

Damping

03 s

The current damping value will be displayed. According to the description in Section 14.1.3.2 "Input window / modify a value", the current value can be changed. After setting the new damping value, press  to confirm your entry.

15.4.2 Low flow cut-off

The value for low flow cut-off (low flow volume) is a limiting value stated as a percentage that relates to the upper-range value of the flow rate. If the volume drops below this value (e.g. leakage), the displayed value and the current outputs will be set to "ZERO." The value for low flow cut-off can be set from 0 to 20% in 1-percent increments. After choosing the Low flow cut-off function and pressing enter, the following selection field will be displa

Low flow cut-of f

00%

The low flow volume will be displayed. According to the description in Section 14.1.3.2 Input window / modify a value, the current value can be changed. After setting the new low flow volume, you confirm your entry with en

15.4.3 Low flow cut-off hysteresis

The hysteresis of the low flow volume is the flow rate expressed as a percentage of the upper range value by which the volume must fall below or surpass the set low flow volume in order to activate or deactivate the function. The hysteresis of the low flow volume can be set in 1-percent increments from 0 to 10%. After selecting the Low flow cut-off hysteresis function and pressing enter, the following selection field will be display

Low flow cut-of f

hysteresis 00%

The current hysteresis will be displayed. According to the description in Section 14.1.3.2 "Input window / modify a value", the current value can be changed. After setting the new hysteresis value, you confirm your entry with en

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15.4.4 Zero point calibration

Using the Zero point calibration function the operator can recalibrate the zero point of your meter in the measuring system. Zero point calibration is to be realized after any installation procedure or after any type of work has been performed on in the pipes near the sensor. Refer also Section 11.4 Zero point calibration.

CAUTION:

After choosing the Zero point calibration function and pressing enter, the current remaining flow will be display

According to the description in Section 14.1.3.2 Selection window / make a selection, "yes" or "no" can be selected. By pressing Esc or toggling to [no] the operator can cancel the current action. Enter [yes] to have the zero point recalibrated.

This function may only be carried out if it is certain that the fluid in the sensor is not flowing. Otherwise, the flow rates measured subsequently will be incorrect. The sensor must be completely filled with fluid. A partially filled sensor or air bubbles will lead to an incorrect zero point calibration.

0.00 l/h

cal.? (no)

15.4.5 Filter

For a noise reduction of the actual readings a signal filter can be used. Following settings are available:

• none

• weak

• mid (standard factory setting)

• strong

Selecting "weak" or "mid" influences the dynamics of the actual readings not or just very less. The setting of damping time (see section 8.11.6 "Damping") determines the dynamic behaviour of sensor and transmitter. Filter "strong" operates as an intense low pass filter to reduce the noise of the actual readings. Then if setting the damping time shorter than 3 seconds, the low pass filter determines the dynamic behavior to actual reading’s variations.

According to the description in Section 14.1.3.2 Selection window / make a selection, noise filter type can be selected.

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15.5 Flow functional class

The FLOW functional class is comprised of functions that affect lower- and upper-range values and the processing of the measured flow rates. In Programming mode (see section 14 Operating modes), i.e. after a password has been entered (see 14.1.3.3 Passwords, 15.2 PASSWORD functional class), the operator can change the settings regarding flow.

Fig. 31

To change the current settings, enter the customer password. Otherwise, the settings can only be displayed but not changed. To cancel the current action, press Esc.

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15.5.1 Volume flow QV unit

Using this function, the operator can define the physical unit for all display functions, limit values and the upper-range value of volume flow. After choosing the Volume flow QV unit function and pressing enter, the following selection field will be displa

Volume flow QV in

(l/h)

According to the description in Section 14.1.3.1 Selection window / make a selection, one of the following units can be selected:

l/h, l/min, l/s m³/h, m³/min, m³/s USG/h, USG/min, USG/s, UKG/h, UKG/min, UKG/s, Kg/h, t/h, ft³/s, MGD (Mega US Gallons / day).

Press  to confirm and save the selection.

15.5.2 Volume flow lower-range value

This function allows the operator to set the lower-range value for volume flow. The lower-range value takes on the unit defined using the Volume flow unit function. The lower-range value will scale the current and frequency outputs assigned to volume flow. After choosing the Volume flow lower-range value function and pressing enter, the following selection field will be display

QV LRV = 0%

XXXXX.XX l/h

The current lower-range value for volume flow will be displayed. According to the description in Section 14.1.3.2 Input window / modify a value, the current value can be changed.

15.5.3 Volume flow upper-range value

This function allows the operator to set the upper-range value for volume flow. The upperrange value takes on the unit defined using the Volume flow unit function. The upper-range value will scale the current and frequency outputs assigned to volume flow. After choosing the Volume flow upper-range value function and pressing enter, the following selection field will be display

The current upper-range value for volume flow will be displayed. According to the description in Section 1.2.3.2 Input window / modify a value, the current value can be changed.

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QV URV = 0%

XXXXX.XX l/h

15.5.4 Volume flow limit MIN

The MIN limiting value for volume flow can be evaluated via the status output. You enter the value as a percentage of the set upper-range value. If the volume flow is lower than that limit value, the status output will be set in case the corresponding assignment has been made. If the alarm function has also been activated for the current output, the applied current will change to < 3.2 mA or > 20.5 mA / 22 mA. After choosing the Volume flow limit MIN function and pressing enter, the following selection field will be display

Volume flow limit

MIN = 10%

The current MIN upper-range value for volume flow will be displayed. According to the description in Section 14.1.3.2 "Input window / modify a value", the current value can be changed.

15.5.5 Volume flow limit MAX

The MAX limiting value for volume flow can be evaluated via the status output. You enter the value as a percentage of the set upper-range value. If the volume flow surpasses this limit value, the status output will be set in case the corresponding assignment has been made. If the alarm function has also been activated for the current output, the applied current will change to < 3.2 mA or > 20.5 mA / 22 mA. After choosing the Volume flow limit MA X function and pressing enter, the following selection field will be display

Volume flow limit

MAX = 90%

The current MAX upper-range value for volume flow will be displayed. According to the description in Section 14.1.3.2 "Input window / modify a value", the current value can be changed.

15.5.6 QV limit hysteresis

The hysteresis of the QV limiting values is the flow rate in percent based on the upper-range value and indicates the value which must fall below or surpass the set limiting values in order to activate or deactivate the function. The hysteresis of the QV limiting values can be set in 1-percent increments from 0 to 10%. After choosing the QV limit hysteresis function and pressing enter, the following selection field will be display

QV limit

Hysteresis 00%

The current hysteresis value will be displayed. According to the description in Section 14.1.3.2 "Input window / modify a value", the current value can be changed.

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15.5.7 Density

If a mass unit in kg or t is used as flow unit (2.5.1 Volume flow QV unit), the density of the medium must be entered in the unit of g/l. Using the entered density value, the mass flow is calculated from the volume flow measurement.

After choosing the Density function and pressing enter, the following selection field will be display

The current density value will be displayed. According to the description in Section 14.1.3.2 "Input window / modify a value", the current value can be changed.

The value of the density is not measured. It is a parameter.

Density

998.2 g/l

15.5.8 Volume flow LSL (information field)

This value represents the minimum lower range value based on the inside diameter of the sensor. This value is normally set for a flow velocity of 0.25 m/s.

QV LSL

XX.XXX l/h

15.5.9 Volume flow USL (information field)

This value represents the maximum upper range value based on the inside diameter of the sensor. This value is normally set for a flow velocity of 11 m/s.

QV USL

XX.XXX l/h

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15.6 Pulse output functional class

The pulse output functional class is comprised of the functions regarding the pulse output.

Fig. 32

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15.6.1 Pulse or frequency output

The Pulse or frequency output function allows the operator to define whether pulses per represent a unit of flow or a frequency between 0 and 1 kHz that represents an analog output over the measuring range.

After selecting the frequency setting, the maximum frequency of 1 kHz will be generated when the upper-range value for mass or volume f low is reached (depending on the selected pulse unit). If the flow rate falls below the low flow volume, the actual frequency is 0 Hz.

After selecting the pulse setting, pulse value and unit the transmitter will determine the number of pulses per flow volume. When choosing a combination of these settings that cannot be fulfilled in real time for the upper-range value (e.g. the number of pulses per time unit cannot be generated due to the pulse width which is too large), the error message "Pulse width too large" or "Inconsistent parameter" will be displayed.

Press  to display the current setting:

Output of

(Pulse s)

According to the description in Section 14.1.3.1 Selection window / make a selection, the operator can toggle between frequency and pulse output (default setting).

15.6.2 Pulse output unit

This function allows the operator to define the unit to be counted. After selecting the Pulse output unit function, press  to display the following selection field:

Accumulation of

1.0 l

The current value will be displayed. As mentioned in Section 14.1.3.1 Selection window / make a selection, the operator can choose between the following units: Mass units: kg, t Volume units: m³, l, USG, UKG, ft³.

15.6.3 Pulse value

This function allows the operator to define how many pulses will be output per unit counted. After selecting the Pulse value function, press  to display the current unit:

1 pulse per

(1.0) unit

As mentioned in Section 14.1.3.1 Selection window / make a selection, the operator can choose between the following pulse values: Values:

0.001, 0.01, 0.1, 1.0, 10.0, 100.0

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15.6.4 Pulse width

This function allows the operator to change the width of the output pulse to be output. If the pulse width is too large for the actual pulse number, it will be reduced automatically. In this case the warning "Pulse output saturated" will be displayed.

After selecting the Pulse width function, press  to display the following selection field:

Pulse width

0050.0 ms

The current pulse width will be displayed. As mentioned in Section 14.1.3.2 "Input window / modify a value", the operator can change the current value.

The maximum output frequency can be calculated from the following formula:

f 1000

If connecting to electrical counter relays, we recommend pulse widths greater than 4 ms; for electromechanical counter relays the preset value should be 50 ms.

mswidthpulse

≤=

][*2

15.7 Status output functional class

The functional class output is comprised of the functions for setting the status output.

Fig. 33

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15.7.1 Status output active state

The status output can be compared to an electrical relay that can function as make or break contact. For safety-relevant applications, the operator will choose the break contact setting so that a power failure or failure of the electronics can be detected like an alarm. In standard applications, the output is used as make contact.

The Status output state active state function allows the operator to define the behavior of the status output.

Output active

(closed)

As mentioned in Section 14.1.3.1 Selection window / make a selection, the operator can choose between the following settings:

- closed

- open.

15.7.2 Status output assignment

This function allows the operator to define to which event the status output is to be assigned. The most general assignment is the reverse flow assignment.

After selecting the Status output assignment function, press  to display the current assignment.

Output assigned to

(Reverse flow)

As mentioned in Section 14.1.3.1 Selection window / make a selection, the operator can choose between the following settings:

- Flow direction recognition

- Forward flow

- Reverse flow

Limiting values:

- MIN QV

- MAX QV

- All limiting values and error detection

- Alarm.

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15.8 Current output functional class

The current output functional class allows the operator to perform the settings for the current outputs of the transmitter.

Fig. 34

The current output is always assigned to volume flow.

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15.8.1 Current output 0/4 - 20 mA

The Current output 0/4 to 20 mA function allows the operator to define the range in which the current output is to be operated. Within the range from 0 to 21.6 mA (= 0 ... 110%) HART® communication is not possible. The range from 4 to 20.5 mA follows the NAMUR recommendation and covers the range from 0 to 104% of the measuring range. The standard range from 4 to 21.6 mA allows for a control of the measuring range of up to 110%.

Press  to display the current setting.

Current output I1

(4) – 21.6 mA

As mentioned in Section 14.1.3.1 Selection window / make a selection, the operator can choose between the following settings:

- 0 – 21.6 mA

- 4 – 21.6 mA

4-21.6 mA only

- 4 – 20.5 mA

4-20.5 mA and 4-21.6 mA

Output current

Fig. 35

0-20 (21.5) mA

Measured value

15.8.2 Current output alarm

This function allows the operator to define the state taken on by the current output when a state of alarm is detected. This information can be analyzed in the control system. Press  to display the current setting:

Alarm

(>22mA)

As mentioned in Section 14.1.3.1 Selection window / make a selection, the operator can choose between the following settings:

- not used

- no alarm function

- > 22 mA current rise in the case of an alarm

- < 3.8 mA current reduction in the case of an alarm

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15.9 Simulation functional class

The functional class simulation is comprised of the functions for simulating the outputs. If simulation is activated, all output signals will be generated based on the selected type of simulation. The peripherals connected to the device can be tested without a flowing product.

Simulation will be deactivated automatically if the operator switched the device off or did not touch any control unit keys for about 10 minutes. Simulation can also be activated and controlled via HART® commands.

Fig. 36

15.9.1 Simulation on / off

The Simulation on/off function allows the operator to activate or deactivate simulation. If simulation is activated, all output signals will be generated based on the selected type of simulation. The peripherals connected to the device can be tested without a flowing product. Press  to display the current status.

Simulation

(off)

As mentioned in Section 14.1.3.1 Selection window / make a selection, the operator toggles between the "on" and "off."

Simulation will be deactivated automatically if the operator switched the device off or did not touch any control unit keys for about 10 minutes.

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15.9.2 Simulation direct / preset value Q

This function allows the operator to define whether simulation is comprised of the measurement of the volume flow or whether the outputs will be set directly. Press  to display the selected type of simulation.

Simulation

[direct]

As mentioned in Section 14.1.3.1 Selection window / make a selection, the operator can choose between the following settings:

- Direct pulse and current outputs are programmed directly

- QVabs a measurement is simulated

If "direct" simulation is activated, any output will perform based on the settings described in Sections 15.9.5 Status output simulation to 15.9.5.7 Current output simulation. It is therefore recommended that the settings be defined before starting simulation. They can then be purposefully changed during simulation.

Simulation will be deactivated automatically if the operator switched the device off or did not touch any control unit keys for about 10 minutes.

15.9.3 Simulation measured flow Q

If the operator selected the setting "QVabs" described in Section 15.9.2, the following settings of a volume flow will affect the output behavior during measured value simulation. In order to simulate volume flow, the operator can define a "measured value." The flow rates will be simulated in both directions. All outputs will per form based on the simulated measured value.

Preset QVabs

±0900.0 l/h

The simulation value is entered as described in Section 14.1.3.2 "Input window / modify a val ue".

15.9.4 Direct simulation of outputs

If the operator selected the setting "Direct simulation" described in Section 15.9.2 „Simulation direct ", the following 3 possible settings will af fect the output. All outputs are simulated at the same time by these settings.

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15.9.5 Status output simulation

The Status output simulation function allows the operator to purposefully activate the status output.

Press  to display the current state.

Status output

(off)

As mentioned in Section 14.1.3.1 Selection window / make a selection, the operator can toggle between "on" and "of f".

15.9.6 Pulse output simulation

The Pulse output simulation function allows the operator to define a frequency to be assigned to the pulse output. After selecting this function and pressing enter, the following selection field will be display

Set frequency

0210.0 Hz

This field shows the current frequency. As mentioned in Section 14.1.3.2 "Input window / modify a value", the definable frequency ranges from 6 Hz to 1100 Hz.

15.9.7 Current output simulation

This function allows the operator to define a current for current interface 1. Press  to display the set current.

Set I1

I1 = 10.50 mA

As mentioned in Section 14.1.3.2 "Input window / modify a value", the current value can be changed.

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15.10 Self-test functional class

The self-test function class is comprised of the functions relating to the self-test of the sensor. The diagnostic functions of the transmitter, which monitor the proper functioning of the electronics and the software, are always active and cannot be switched off. The excitation current can be monitored in addition.

Fig. 37

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15.10.1 Self-test test on / off

The Self-test on/off function allows the operator to activate or deactivate the monitoring function of the field coil current.

Self-test

(off)

According to the description in Section 14.1.3.1 Selection window / make a selection, the operator can toggle between "on" and "off." The standard factory setting is "on."

The measurement is intended to suppress temperature dependences of the transmitter. During the sampling time of 0.5 seconds, the transmitter is offline; the last measured value will be displayed at the signal outputs.

Self-test period (STP)

With the help of this function, you set the time period after which the field coil current will be measured periodically. You can set periods between 35 seconds and 999 seconds.

Self-test

STP = 040 s

This field shows the current self-test period. As mentioned in Section 14.1.3.2 "Input window / modify a value", the current value can be changed.

15.10.2 Reference calibration on / off

With the help of the function Reference calibration on/off, the periodic recalibration of the transmitter can be activated or deactivated. The objectives of the function are periodic selfmonitoring and an increase in long-term stability. During the automatic reference calibration of 30 seconds, the transmitter is offline; the last measured value will be displayed at the signal outputs. After choosing this function and pressing enter, the following selection field will be display

Reference calibration

(off)

According to the description in Section 14.1.3.1 Selection window / make a selection, the operator can toggle between "on" and "off." If switched on, the reference calibration will be done periodically.

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15.10.3 Reference calibration period (GAP)

The function Reference calibration period is a multiplication of the function "self-test period" .With the help of this function, you define after how many STP’s the reference calibration is to be performed.

Reference calibration

GAP = 540 * STP

This field shows the current reference calibration period. As mentioned in Section 14.1.3.2 "Input window / modify a value", the current value can be changed.

Example: The "self-test period" has been set to 40 seconds; a reference calibration is to be carried out every 6 hours.

GAP = 6 * 3600s / 40s = 540

15.10.4 Empty pipe detection on / off

With the help of the function Empty pipe detection on / off, continuous empty-pipe detection can be activated or deactivated. After selecting this function and pressing enter, the following selection field will be display

Empty pipe detection

According to the description in Section 14.1.3.1 Selection window / make a selection, the operator can toggle between "on" and "off." If switched on, the empty pipe detection will be done periodically.

(off)

15.10.5 Empty pipe detection period

With the help of the function Empty pipe detection period, the time after which the detection will be carried out can be set. When entered 00 minutes, the detection will be performed continuously.

After choosing this function and pressing enter, the following selection field will be display

Leerrohrprüfung

alle 10 Min

This field shows the current empty pipe detection period. As mentioned in Section 14.1.3.2 "Input window / modify a value", the current value can be changed.

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15.11 Settings sensor + UMF2 (B) functional class

This functional class is comprised of the general settings affecting the behavior of the transmitter.

SETTINGS SENSOR + UMF2

functional class

SETTINGS

SENSOR + UMF2

Flow direction

Sensor constant C

Sensor type

Inside diameter

Sensor constant /mV

03321.9 l/h

Sensor type

[PITY]

_______________

EPY

EPYE

EPS PIT-520 PIT-571 PIT-573

PIK PITY other

Inside diameter

0125.5 mm

Flow

direction

Version of UMF2

software

Serial number

[forward & reverse]

_________________

forward & reverse

forward reverse

Version of UMF

001.06

Serial number

123456

Language

Excitation

frequency

Mains frequency

LAnguage

[English]

_________________

German

English

Excitation frequency

[6.25] Hz

_________________

1.56

3.125

6.25

12.5 25

Mains frequency

[50] Hz

_________________

50 60

Fig. 38

Show system

errors

Reset system

error

IM-P309-02 MI Issue 268

System error

0000000

Reset

[no]

_________________

yes

15.11.1 Sensor constant C

The sensor constant C is the calibration value of the sensor connected to the transmitter. The calibration value must be entered in the ELM transmitter to ensure a correct measurement. The constant will be defined after the calibration of the meters and can be found on the rating plate of the sensor.

After selecting the Sensor constant function, press  to display the current setting.

Sensor constant /mV

0123 4. 56 l/ h

As mentioned in Section 14.1.3.2 "Input window / modify a value", the current value can be changed.

CAUTION: Changing sensor constant C to a value that differs from the value on the rating plate of the sensor connected to the flowmeter will result in false readings!

Note:

The sensor constant must always be preceded by a plus or minus sign. The delivery default setting is a plus sign. If inlet and outlet section are interchanged

sensor), the transmitter will display a "forward flow" negative measurement value. If the (plus or minus) sign of the sensor constant is then changed without changing the actual value, a plus sign will again be displayed. No changes need be made in the disposition of the electrical connections (wires).

when the device is installed (the flow direction is indicated by an arrow on the

15.11.2 Sensor type

The function Sensor type contains the type of the sensor with which the transmitter has been delivered. The distinction is necessary and required because the flow rate measurement uses different calculations depending on the type of the used sensor. After selecting this function, press  to display the current setting.

Sensor type

(PITY)

This type code can be found on the sensor rating plate. This setting is defined by the vendor when the device is first put into operation at the factory. It should only be changed if the transmitter is mounted onto another sensor.

15.11.3 Inside diameter

The inside diameter of the sensor connected to the transmitter is necessary for calculating the mean flow velocity. The inside diameter must be checked in the ELM (on mm exact) to ensure a correct measurement. After choosing the function "inside diameter" and pressing enter, the following selection field will be displa

Inside diameter

50 mm

As mentioned in Section 14.1.3.2 "Input window / modify a value", the current value can be changed.

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15.11.4 Language

Two languages are available in the ELM: German and English..

Language

(English)

As mentioned in Section 14.1.3.1 Selection window / make a selection, the operator can toggle between these languages:

- German

- English.

15.11.5 Excitation frequency

With the help of the function Excitation frequency, you can set the excitation frequency of the field coil current. Since the excitation frequency depends on the sensor, it cannot be assigned freely. The excitation frequency defaults to 6.25 Hz.

Excitation frequency

(6. 25 Hz)

The selection is confirmed and taken over with the  key.

Caution!

If the excitation frequency is changed, then a reference calibration (Section 15.10.2 Reference calibration on / off ) must be accomplished! Otherwise the measuring accuracy is not ensured.

15.11.6 Mains frequency

In order to ensure with mains frequency (50 Hz or 60 Hz per second) optimal interference suppression, the input of the frequency is necessary. The standard setting is 50 Hz After choosing the function Mains frequency and pressing enter, the following selection field will be display

Mains frequency

(50 Hz)

The selection is confirmed and taken over with the  key.

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15.11.7 Flow direction



This function allows the operator to define the flow direction that the transmitter will evaluate. Only "forward" should be selected so as to prevent reverse flow from being measured. The standard factory setting is "forward & reverse." After selecting the Flow direction function, press  to display the current setting.

Flow direction

(forward)

As mentioned in Section 14.1.3.1 Selection window / make a selection the operator can choose between:

- forward

- reverse

- forward & reverse





Forward flowReverse flow





Output (current, pulse)

Fig. 39















Measured value















15.11.8 Software version (information field)

After selecting this function, the version of the transmitter software will be shown (example: 1.0 6):

Version of ELM

001.06

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15.11.9 Serial number (information field)

With the help of the Serial number function, the transmitter is assigned to an order. This number provides access to internal vendor data if the device needs servicing. The serial number is printed on the rating plate of the transmitter. After selecting this function, press  to display the following information field:

Serial number:

100683

This entry should never be changed so as to ensure that the sensor, the transmitter and the documents created within quality management are assigned correctly.

15.11.10 Show system errors

With the help of this function, you can show the error code of the system errors that have occurred.

The integrated diagnostic system of the ELM distinguishes between two types of errors (see also Section 15.11.12 "ELM error messages"). Self-test errors such as problems with a sensor line or inconsistent parameter inputs are displayed as textual error messages. Once the error has been eliminated, the message automatically disappears from the display. For further information, see Section 16.1.1 "Display of self-test errors".

15.11.11 Reset system error

Before resetting a system error manually, we advise that you contact our technical service department. For further information, see Section 16.1.2 "Display of system error".

Reset error

(no)

If the operator toggles to [yes] and confirms the action according to the description in Section

14.1.3.1 Selection window / make a selection , the error messages disappears from the display. If the message reappears shortly after, do contact our technical service department.

15.11.12 ELM error messages

The integrated diagnostic system of the ELM distinguishes between two types of errors. Selftest errors such as problems with a sensor line or inconsistent parameter inputs are displayed as textual error messages. Once the error has been eliminated, the message automatically disappears from the display. For further information, see Section 16.1.1 "Display of self-test errors".

Errors that are attributable to system memor y or software, division by zero, or a fault in the electronics unit are designated as system errors. These error messages are not reset automatically after the error (usually of very brief duration) is eliminated. Before resetting a system error manually, we advise that you contact our technical service department. For further information, see Section 16.1.2 "Display of system error".

If the cause of any of the error messages described below cannot be eliminated, contact the device vendor.

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16. Standard operating mode

The transmitter operates as described above. After the cause of the error message has been eliminated, the message automatically disappears.

16.1 List of error messages

16.1.1 Display of self-test errors

Self-test errors are displayed as plain text in the set language (German or English) on the second line of the LCD.

Display (German)

Rohr leer empty pipe Empty-pipe detection

Spulenstrom Exciter

Messkreis überst. meas. circ. sat. The flow measurement

Strom überst. curr. saturated The output of current

IMP übersteuert pulse out satur. The pulse output

Display (English)

current?

Description Possible cause of

has been activated. Fluid density is below the limit value for density; empty-pipe detection, pipe is empt y.

Interruption / shor t circuit in the connection of excitation coil. All signal outputs will be set to no flow.

circuit is overloaded. The measured electrode voltage is too high. All signal outputs will be set to no flow.

interface is overloaded. Based on the selected settings and the currently assigned measured variable, the current to be output is >

21.6 mA .

is overloaded. The current measured value requires a pulse rate, which can no longer be generated with the help of the set pulse duration and pulse value.

error and remedy

Product contains air bubbles/pipe is empty. Bubblefree filling must be ensured.

Check the wiring between transmitter and sensor.

Flow rate exceeds the upper range value (URL). High electrostatic voltage at the electrodes.

Check the upperrange value and the flow rate settings.

Check pulse duration, pulse value, and measuring range. Check the f low rate.

Table continued overleaf

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16.1.1 Display of self-test errors (continued)

Display (German)

Display (English)

Description Possible cause of

error and remedy

Parameter inkons. params

inconsist

ext EEPROM fehlt missing

EEPROM

Information: Error message: "Parameter is inconsistent" (system error 0x0400)?

To generate a list of the inconsistencies, first enter a valid password and then an invalid password. The control unit will show a list of current errors (only once). The operator can then correct the inconsistent settings after entering a valid password.

Parameter is inconsistent.

The data memory module (DSM) with the calibration data of the sensor and the customerspecific settings of the transmitter is not plugged-in.

Check the parameter settings. The set parameters are contradictory. Check the parameter settings. The set parameters are contradictory. Example: Upperrange value, pulse value and pulse duration must be matched in such a way that the combination fits for all measured values.

Insert the data storage module (DSM) in the socket on the power supply board UMF2-20.

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16.1.2 Display of system error

System errors consist of the message text "system error" and a 5-digit number in hexadecimal code. The meaning of the individual error codes is described in the following table. If several errors occur at the same time, the hexadecimal sum of the individual errors will be displayed. The errors are coded in such a way that the individual errors can be easily identified. The sums are unique.

Descriptor label

(never displayed)

SystemfehlerExtEEProm 0x00002 External EEPROM (data memor y chip DSM)

SystemfehlerIntEEProm 0x00004 Internal EEPROM (calibration UMF2 (B)

SystemfehlerEEPROM 0x00010 Unsuccessful saving or reading of memory

Constant/

display

Description

plugged in but empty, not initialized

transmitter) erased, UMF2 uncalibrated

data / defective memory

16.1.3 Reset system error

After the fault recovery the displayed system error message can be reset.

For this purpose the customer password has to be entered. (Refer to 15.2.1 Customerpassword).

Select the function Show system error. (Refer to 15.11.10 Show system error).

Analyse the fault and repair the transmitter or sensor.

Finally reset the system error message. (Refer to 15.11.11 Reset system error)

17. Standards & Directives

General standards and directives

EN 60529 Degrees of protection provided by enclosures (IP code) EN 61010-1:2010 Safety requirements for electrical equipment for measurement, control, and laboratory use. NAMUR guideline NE21, Version 2012-05 -09 Directive 97/23/EC (Pressure Equipment Directive) AD-2000 Guidelines

Electromagnetic compatibility

EMC Directive 2004/108/EC EN 61000-6-2:2005 (immunity for industrial environments) EN 61000-6-3:2007 +A1:2011 (emission standard for residential, commercial and light-industrial environments) EN 55 011:20 09 +A1:2010 group 1, class B (emitted inter ference)

DIN EN 6132 6-1:2013

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18. Maintenance

The device requires no maintenance if used according to its intended purpose. Cleaning might be necessary due to deposits and dirt on the electrodes or the flow tube.

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19. Decontamination certificate for device cleaning

Company name: ............................... Address: ...............................................

Department: .................................... Name of contact person: ....................

Phone: .................................

Information pertaining to the enclosed flowmeter

Model ELM- ................

was operated using the following fluid: ........................................

In as much as this fluid is water-hazardous / toxic / corrosive / combustible

we have done the following:

Checked all cavities in the device to ensure that they are free of fluid residues*

Washed and neutralized all cavities in the device*

*cross out all non-applicable items

We hereby warrant that no health or environmental hazard will arise from any fluid residues on or in the enclosed device.

Date: ............................. Signature: ...........................

Stamp

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Spirax Sarco ELM Installation, Operating And Maintenance Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual