Thermal insulation. Elis FLONET FH30 Series

Project design, installation and service manual

Page 26 of 72

ELIS PLZEŇ a. s.

Electromagnetic flowmeter FLONET FH30xx

4.6 Thermal insulation

When installed in thermally insulated piping, to prevent unnecessary heat loss, the meter sensor is usually provided with thermal insulation too.

In such cases, the following rules need be observed:

•

Insulation shall be applied onto the meter sensor only;

•

Maximum surface temperature of the sensor, whether thermally insulated or not, shall not exceed the values given in Section 3.4;

• The maximum insulation thickness shall not exceed 40mm (the thermal conductivity coefficient λ

0.045 (Wm -1 K -1 ) at 50



C; see standard EN 13787);

D

≤

•

In the cases of compact meter version, the part connecting the meter sensor and transmitter shall always remain bare;

•

The transmitter shall be protected from additional heating (by direct sunshine or heat emanating from nearby equipment).

4.7 Flowmeter heating

In measuring fluids with sub-zero operational temperatures, or at ambient temperatures close to the specified minimum fluid temperatures, it is permitted to provide the meter sensor with thermal insulation and auxiliary heating system.

•

The sensor heating can be facilitated by electricity or a suitable heat-carrying medium supplied through a special piping system;

•

In cases of electric heating, it is recommended to use a regulated AC power source with current switching at zero.

5 ELECTRICAL CONNECTIONS

5.1 Transmitter

5.1.1 Terminal box

Terminals

L

N

PE

AC power source

95 to 250VAC, 45 to 65Hz

ELIS PLZE Ň a. s., Luční 425/15, 301 00 Plzeň, Czech Republic, phone.: +420 377 517 711, fax: +420 377 517 722 Es 90678K




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Terminals

C (+)

D ( –)

PE

DC power source

24V ± 20% (19.2 to 28.8VDC)

1

2

3

4

5

6

7

8

Terminals

−

+

−

+

Output signals

A

B

OUT1

OUT2

−I (H1)

+I (H2)

Functions

RS-485 MODBUS RTU

Binary output

Current output

The output and communication signals shall be connected to the target devices via shielded cables.

The cable shielding shall be connected at one end only, to the PE terminal, located on the terminal blocks.

5.1.2 Excitation circuit

Excitation current

Maximum voltage:

I = 200mA

Umax = 30V

5.1.3 Signal cables

The maximum length of the signal cables depends on the measured fluid conductivity and electric parameters of the cables themselves.

To eliminate risk of electromagnetic interference via the connecting cables, the transmitter shall be located as close as possible to the meter sensor.

The relationship between the measured fluid conductivity and the maximum length of the cables connecting the meter transmitter and sensor is shown in the following graph:




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15 30 45 60 75 90 105 120 135 150

Cable length (m)

The above graph applies to sensor sizes up to DN80. For sizes in excess of DN80, the maximum cable length shown in the graph shall be derated as follows:

L

DNXX

=

L

DN80

× DN80

DNXX

(m) where L

DN80 is maximum cable length determined from the graph for sensor sizes up to DN80

L

DNXX

is maximum cable length for the given sensor size (in excess of DN80)

DNXX sensor size in excess of DN80

Distance between the sensor and transmitter not exceeding 10m:

Fixed connection of the signal cable conductors to the transmitter terminals

Cable parameters: R = 80 Ω/km (loop 2 × 80 Ω/km)

Distance between the sensor and transmitter 10 to 150m:

The signal cable end provided with a connector with the matching counter piece at the transmitter

Cable parameters: R Ω/km loop 2 × Ω/km

The signal cables are included in the product delivery scope. In their order, the customer shall specify the cable length.

The flowmeter is calibrated with the connecting signal cable in place. The customer shall not modify or exchange the cable; such action shall be reserved to the authorised service staff or the meter manufacturer.

The connecting cable shall be fixed in position. Should it be left free, changes in the cable capacity due to its movement might adversely affect the measurement accuracy, especially at low fluid flow velocities.

Cable extension or shortening is not permitted. Replacement of a damaged cable shall be arranged with the meter manufacturer.





5.2 Sensor connection box

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Sensor connection box

Signal cable connection table – the sensor protection class IP 67/IP 68

Terminal Description Conductor colour

E2

E1

FE

SP+

SP −

FE

PE

Electrode E2

Electrode E1

Brown BN

White WH

Grounding electrode Blue BU (shielding for the conductor pair BN, WH)

Excitation winding Green GN

Excitation winding Yellow YE

Grounding electrode Blue BU (shielding for the conductor pair GN, YE)

Protection conductor Yellow and green GNYE (the cable shielding)

Cond c o s leadin o e minals SP and SP− may be connec ed o disconnected only with the transmitter power source switched off.

The sensor designed with protection class IP 68 has a fixed connection of the signal cable conductors to the sensor terminals. In production, the terminal box is sealed and the terminals embedded in an impregnation compound protecting the sensor from the ambient humidity. The other end of the cable is provided with a connector facilitating connection to the meter transmitter.

5.3 Power and information cables

In operating environments free of explosion risk, the power and information cable connections do not require any special arrangement. Applicable to the meter installation work are standard procedures known from conventional measurement and control systems. However, due attentional shall be paid to the applicable national regulations and standards.

The flowmeter does not include any integrated line circuit breaker. Unless the meter configuration includes a moveable power cord and plug, a separate power switch or circuit breaker shall be used (see the provisions of section 6.11.3.1 of standard EN 61010-1).

The protective conductor of the power supply cable to be connected to the PE terminal must be longer than the L and N conductors. The PE conductor must be disconnected as last if the power cable is removed from the bushing. This PE terminal is located at the bottom of the terminal box of the instrument box.



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5.4 Cable placement

To minimise the effect of electromagnetic interference, the cables connecting the sensor and the meter transmitter shall be laid at least 25cm away from the power cables of other electric equipment.

In selecting cable routes, attention shall be paid to the risk of thermal degradation of the cable insulation due to nearby technological heat sources. All cables shall be laid outside the thermal insulation layers on piping.

The cable glands shall be properly sealed and tightened with suitable tooling. To prevent cables from being pulled out of the glands, their position shall be mechanically fixed no further than 0.3m away from each gland.

Outside the gland , the cable shall be bent to form a “dripping loop” the straight length of about 30mm of the cable is led horizontally from the gland and then bent down to form a loop).

5.5 Power supply specifications

The electrical circuits of the transmitter forming part of a FLONET FH30xx flowmeter are designed as floating, insulated from the ground potential.

The FH30xx electromagnetic flowmeter can be delivered with either AC or DC power supply.

AC power supply

•

95 to 250VAC, 45 to 65Hz, 3VA max.

•

Internal fuse T 1.25A/250 V, 5 x 20 mm

DC power supply

•

24V ± 20% (19.2 to 28.8VDC), 3W max.

•

Internal fuse T 2A/250V, 5 x 20mm

Special attention shall be paid to the power supply arrangement in cases of an electromagnetic flowmeter installed in a piping system provided with cathodic protection.

For more detailed information, see Section 5.7. ( Grounding and potential equalising ) hereof.

In locations with strong electromagnetic interference (e.g. in the vicinity of frequency converters), it is recommended to include a filter in the power supply lines. The filter shall be installed as close as possible to the meter transmitter.

Filter parameters:

Rated voltage:

Rated current:

250V/50Hz

0.5A or higher

Attenuation characteristic: 10kHz 10 to 20dB

10MHz 40dB

5.6 Input and output connections

Outputs from the flowmeter of the type series FLONET FH30xx are not intrinsically safe.

5.6.1 Multifunction outputs OUT1, OUT2

Functions and parameters

•

Passive outputs: electrically insulated from the ground and other inputs and outputs

•

Open collector: Umax = 30V, Imax = 30mA

•

Status in cases of power cut:

•

Output operational modes: open o Frequency: Frequency range 0 to 10kHz, duty cycle 1:1 o Pulse: Maximum frequency 100Hz o Binary:

Selectable pulse number

Pulse length setting 1 to 999ms

Exceedance of set limit values of measured quantities

Permanently closed

No-error condition




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The output parameters of the frequency output are influenced by the capacity of the connected cable.

When transmitting a frequency output signal with a value reaching up to 10 kHz over long distances, this negative effect on the quality of the transmitted signal at the evaluation point must be considered.

Multifunction outputs – selectable functions

•

Pulses/frequency for Q+

•

Pulses/frequency for Q –

•

Pulses/frequency for IQI

•

Q > Qmax

•

|Q| > Qmax

•

Output negation

Pulse number determination for the pulse output

Restrictive conditions in setting the pulse output parameters:

•

Maximum output frequency: f max

= 100Hz

•

The middle period between pulses M shall be equal to or wider than the pulse width P .

Breaching this condition will result in an error message.

It holds:

M



P

P + M = T f =

1

T

P

T

M

In selecting the pulse number, the following requirement shall be met:

Q max

≤ 3.6 × V × f max

(m 3 /h, l/imp, imp/s) where: Q … fluid flow rate

V … volume per one pulse

P … pulse length f … pulse output frequency

T … cycle length

(m

(l)

3

(s)

(Hz)

(s)

/hod)

The flowmeter software permits setting the V values in steps shown in the table below:

V (l)

0.001 0.01 0.1 1 10 100 1000 10000

The pulse length in cases of electronic determination of the fluid volume passed through the sensor is recommended to be set at P min

= 5ms, which meets the condition for f max

at the pulse output equal to 100Hz. In cases of electro-mechanical counters, P min

is usually set at 50ms, corresponding to the maximum frequency at the pulse output of 10Hz.

Example:

Assume that a user specified for their flowmeter of DN100 the maximum operating flow rate:

Q max

= 150 m 3 /h (Q max

= 41.66 l/s … v 5.3 m/s)

For the fluid volume corresponding to one pulse (of length 5ms, f max

100Hz) it holds:




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V

V



Q max

3.

6 × f max

(l/pulse, m3/h, Hz)



0.416 (l/pulse)

By selecting the next higher pulse number from the above table (1 litre per pulse) the user will make sure that the pulse output frequency will not exceed (for the specified Q max of 150 m 3 /hour) the value of

100Hz and, at the same time, verify the selection of the pulse length (5ms). The user may choose the

V values other than those from the basic selection in the above table, e.g. 0,5 litres/pulse.

Passive output

FLONET FH30xx DATA PROCESSING SYSTEM

Imax = 30mA Uextmax =30 V

Assignment of terminals

Output Terminal

3 −

OUT1

OUT2

4

5

6

+

−

+

Shielded cables must be used to connect the output signals.

The shield is only connected on one side, namely the PE terminal located on the terminal board.

5.6.2 Current output 4 to 20mA

Functions and parameters

•

Passive current output electrically insulated from the ground and other inputs and outputs

•

Umax = 30V

•

Rzmin = 250



•

Programmable function: o Volume flow rate

•

Fixed current setting in the range of 4 to 20mA

In cases of power cut, the current output will preserve the last value prior to the power failure .



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Passive output

FLONET FH30xx DATA PROCESSING SYSTEM

Imax = 20mA

Imin = 4mA

Selectable functions of the current output

•

Output −Q ... +Q

•

Output 0 ... |Q|

•

Fixed current 4 ... 20mA

Current for |Q|

Uextmax = 30V

Current loop resistance:

Rz =

Uext − 8

0.02

(



, V, A)

Rzmin = 250 Ω

Rzmax = 800 Ω

Current for −Q ... +Q

The flow rates corresponding to 4 or 20mA can be either positive or negative, and their mutual relationships can be either “greater than” or “lower than”. Therefore, the user may select any one of six possible functions of I out

vs. flow rate Q:





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Shielded cables must be used to connect the output signals.

The shielding is only connected on one side, namely on the PE terminal, which is located on the terminal board.

5.6.3 Communication interfaces

5.6.3.1 Communication interface RS-485 MODBUS RTU

CONTROL AND DATA-PROCESSING SYSTEM OPERATION

Communication interface: RS-485 MODBUS RTU according to standard EN 61158, electrically insulated

PC requirements: Windows 7 or higher OS upgrade (Linux, iOS) with JAVA 8u40 or higher, the FLOSET 4.0 communication software installed

* .Flo configuration file

Connecting cable:

USB / RS-485 converter with connection cables

Type A according to EN 61158-2 (a twisted pair of conductors, 90% shielding)

Interconnection:

FH 30xx Bus conductor

1

2

PE

A

B

Shielding

Detailed instructions regarding application of the RS-485 MODBUS RTU communication interface can be found the manual:

Es 90684K Communication interface RS-485 MODBUS RTU

Electromagnetic flowmeters FLONET FH30xx and FLONEX FXx11x



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5.7 Grounding and potential equalising

To guarantee correct operation of the FH30xx electromagnetic flowmeter, it is necessary to ensure that the potential of the measured fluid before and after the flowmeter, the reference meter potential and the

PE protection conductor be equalised with the ground potential at the meter installation site. For the equipment grounding and potential equalising, use Cu conductor of cross-section 4mm 2 .

The external PE terminal on the transmitter box shall be internally connected to the reference meter potential.

Electrically conductive piping

Flanges on the conductive piping shall be connected to the PE terminals on the sensor and transmitter housings and to the ground potential.

The bolted connections between the piping and sensor flanges cannot be taken for a reliable and satisfactory conductive connection. It is recommended to provide threaded holes on the flanges for a reliable bolted connection of the grounding/equalising conductor.

It is not recommended to place the grounding or equalising conductors under the heads of the main flange bolts; such connection may be subject to corrosion and adversely affect the measurement accuracy.





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Piping made of insulating materials or piping with insulating lining

In such cases, the requirement for the fluid potential equalisation shall be met by two grounding rings installed before and after the flowmeter. Each grounding ring shall be inserted between two sealing rings.

The grounding rings are not included among the standard meter accessories , but they can be ordered with the product. Regarding chemical stability and resistance with respect to the measured fluid, the grounding rings shall meet the same criteria as the measuring electrodes.

In the cases of remote meter version, the PE terminal on the meter sensor and the transmitter box shall be interconnected by a Cu conductor of cross-section 4mm 2 .

This connection shall not serve the purpose of potential equalisation with any other equipment or devices.




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Piping with cathodic protection

If an electromagnetic flowmeter is to be installed into piping with cathodic protection, it is necessary to ensure that all flowmeter parts be electrically insulated from the piping. At the same time, the meter power source shall be insulated from the power grid. To ensure the overall piping conductivity, the installed meter shall be bypassed by Cu conductor of cross-section 6 mm 2 (connected to the piping flanges before and after the flowmeter).

The fluid potential shall be equalised with the reference meter potential (the PE terminal potential) by means of grounding rings. The grounding rings shall also be insulated from the piping.

6 METER COMMISSIONING

6.1 Check on electrical connections

Prior to meter energising, check and make sure that:

•

The power network voltage complies with the specifications on the meter rating plate;

•

The power network is properly protected;

•

All terminals and electrical connections are properly tightened;

•

The installation cables are: o intact, o connected at their ends to the correct terminals in the flowmeter and the co-operating equipment, o secured against incidental excessive stress (pulling out of the respective glands), and

•

The meter grounding and potential equalising has been carried out as specified in the product manual.

6.2 Check on meter housing tightness

To attain the parameters of the equipment protection class referred to in Chapter 8 (METER

SPECIFICATIONS), the flowmeter installation shall be carried out in observance of the following directions:

•

Use only cables of external diameters corresponding to the sizes of the cable glands installed;

•

Form dripping loops on the cables;

•

Avoid meter installation position where the cable glands lead upwards;

•

Tighten properly all covers and lids on the meter housings.

Following every service action:

•

Check the condition (integrity and intactness) of all sealing elements and surfaces;

•

Using suitable tooling, tighten all cable glands and meter housing covers.

6.3 Check on the installed meter

The flowmeters are supplied calibrated with verified functions and parameters set according to the customer specifications.

Prior to the meter commissioning, inspect the meter installation site in reference to the requirements of

Section 4.4 above, and assess the possible adverse effects from the nearby technological equipment such as:

•

Undesirable meter warming by external heat sources;

•

Excessive temperature stress on cable insulation;

•

Vibrations and shocks in the piping, and others.



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6.4 Check on the meter operation conditions

Prior to filling the piping and the installed meter sensor with the fluid to be measured, make sure that the fluid parameters (temperature and pressure) are within the limits specified on the meter plate, and that any risk to life or health of personnel is excluded.

7 OPERATION

7.1 Meter energising

7.1.1 Display status

Upon turning the power on, all meter modules will undergo the initiation procedure. Following the display test, the basic screen format with the following data will be shown:

•

Current volume flow rate

(if an error is detected, an error code is displayed next to the current flow)

•

Aggregate fluid volume passed through the meter sensor in the positive direction;

•

Aggregate fluid volume passed through the meter sensor in the negative direction.

The bar chart at the top of the display shows the current flow rate related to the specified maximum flow rate.

Basic screen format

7.2 Front panel and control buttons

7.2.1 Display

The meter is provided with a colour OLED display of 128 x 64 pixels where all the measured quantities, flowmeter parameters and important user information can be visualised. The display control is facilitated by means of four optical buttons (optical reflex sensors).

7.2.2 Control button functions

Button locations with respect to the display

▲

1 ⃝

4

■■■■■■■■■■■■■■■■■■■

1,025

m3/h

45,34

- 25,1

1

⃝

ESC m 3

►

⃝

⃝

ENTER

2

3




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Comments:

1

2

3

4

Optical buttons (optical reflex sensors)

Instantaneous flow rate

Item selected from MENU – DISPLAY, or error messages

Instantaneous flow rate in the form of a bar chart

Control button functions

Buttons ▲, ►, ENTER are actuated by a short touch with a finger on the button.

Button ESC is actuated by either a short (0.3s) or long (> 2s) touch with a finger.

▲ Moving in a menu to the next item above

Cyclic functions: Setting a numeric value 0 – 9 (increasing)

►

Change in sign +/-

Moving in a menu to the next item below

Moving the position mark (cursor) in setting numeric values

ENTER Confirmation of selected action

ESC Departure from current operation to the previous menu item without any parameter change

ESC 2 s Finger touch > 2s: return to the basic screen format

Actuated can be just one button at a time; the other buttons shall remain uncovered.

To press the button repeatedly, you must first zoom out the finger and then reinsert.

7.3 Flowmeter control

7.3.1 Manual control

Manual meter control and selection of menu items using optical buttons do not require any special skills; these functions are intuitive and user-friendly.

7.3.1.1 Basic screen

1,025 m3/h

45,34 m3

-

25,1

The basic screen always shows information on instantaneous flow rate (lines 1 and 2).

The remaining two lines are reserved for supplementary data the user may select from the menu

Display .

The meter is supplied with these two lines pre-set to show the aggregate flow volumes passed through the sensor in the positive and negative directions.

If the flowmeter diagnoses a condition that may adversely affect the meter's operation, an error code is displayed next to the instantaneous flow value in line 1. If there is a serious error that can significantly affect the accuracy of the measurement, zero is displayed in the instantaneous flow field (eg ADC failure, interrupted or short-circuit excitation, unfilled piping, strong electromagnetic interference, etc.).



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Error and diagnostic messages

Error code

E00 No error

Error description

E01

E02

E03

E04

E05

E06

E07

E08

ADC range overflow

Step change in flow

Error reading / writing to memory

Other electronics block error

Warning - zero flow cannot be calibrated

Low current excitation

Short circuit in coil circuit

Information - zeroing in progress, not measuring

E09

E10

E11

E12

E13

E14

High resistance of measured medium

OUT1 output error

OUT2 output error

Information - IOUT out of range

The time is not set correctly

Overload flow Q4 exceeded

As long as you move in the control or parameter-setting menus, the display remains in the active mode (back-lighted).

The backlighting time can be set in the menu item Backlighting time . Deactivated display will automatically be activated upon touching any control button.

User password

To enter the Main menu from the Basic screen, actuate the ESC 2 s button and enter your user password.

The initial user password pre-set in production is 0000.

Changing the access password is possible only with the FLOSET 4.0 program via the RS-485

MODBUS RTU communication link.

To return to the Basic screen format actuate the ESC 2 s button.

Should no control button ( ▲, ►, ESC, ENTER ) be actuated during the recent three minutes, or should the specified backlighting time elapse before that, the display will return automatically to the Basic screen format.



Language

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7.3.1.2 Main menu


To move downward in the menu, use button ►

Displayed data

Current output

Output functions

Serial line

Date setting

Time setting

Volume resetting

Number of samples

Suppressed flow rate

Zero setting

Manufacturing data

To move upward in the menu, use button ▲

Factory setting

Simulated flow

The selected item will be shown in a highlighted window where it can be opened by actuating the ENTER control button. When scrolling up or down in the menu, always four neighbouring items will be shown.

The manufacturer supplies the flowmeter verified as to its functions, calibrated and with parameters set according to the customer’s order. If installed in the user’s technology in observance of the requirements specified in the product manual, the flowmeter will be ready for immediate operational start.

In cases where the user requires an accelerated procedure for the meter commissioning and setting of the meter parameters with respect to the given operational conditions and the cooperating higher-level control system, it suffices to set the parameters shown in bold print in the above list of the main menu items.

Detailed description of the meter control procedures is given in the manual:

Es 90686K Electromagnetic flowmeters of the type series FLONEX FXx11x and FLONET

FH30xx Meter control instructions





FLONET FH30xx control menu structure

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7.3.2

Remote meter control using the FLOSET 4.0 program

Flowmeters of the type series FLONET FH30xx are provided with the digital interface RS-485 MODBUS

RTU and interface HART ® .

Through an interface RS-485 and communication software FLOSET 4.0 the meter can be connected as subordinated equipment to a computer (a personal, notebook or tablet computer) with Windows 7 or higher OS upgrade (Linux, iOS) with JAVA 8u40 or higher.

FLOSET 4.0 is not included in the scope of delivery.

On request we can deliver:

• LOSE . software

• LOSE . software User Guide

• lowme e confi a ion da a * .flo

• USB S-485 converter with connection cables

Program FLOSET 4.0 makes it possible to:

•

read the measured quantities (volume flow rate and flow volumes passed through the meter sensor in both directions);

•

set the parameters of the measured quantities to be displayed (units and number of decimal positions);

•

set the multifunction output parameters (in the binary, pulse or frequency operational modes), and the current output parameters;

•

set the flowmeter language, date and time;

•

set the digital interface parameters;

•

set the data archiving parameters and read the archived data;

•

monitor extraordinary operational events and read the archived data on such occurrences.

7.3.2.1 Communication interface MODBUS RTU

The physical form of this interface consists of a serial line RS-485 of the following parameters:

•

Speed 300, 600,1200, 2400, 4800, 9600, 19200, 38400, 57600 Bd;

•

8 data bits, 1 stop bit;

•

No parity.

Detailed description of communication via interface RS485 MODBUS RTU is given in the manual:

Es 90664K Communication interface RS-485 MODBUS RTU

Electromagnetic flowmeters FLONET FH30xx and FLONEX FXx11x



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8 TECHNICAL DATA

Basic information and parameters

Measurement principle The Faraday induction law

Minimum fluid conductivity 10 μS/cm, 20 μS/cm for demineralised water

Measured flow velocity range

Rated inner diameter of connected piping

Flowmeter design version

Measuring and grounding electrode materials

Measured fluid temperature

/ sensor lining material

0.025 to 10 m/s

DN15 to DN1200

NPS ½ “ to 24“

Compact

Remote

Standard:

•

Stainless steel 1.4571 (SR, HR, SPR)

•

Hastelloy C276 (PTFE, E-CTFE)

Optional:

•

Hastelloy C276

•

Titanium

•

Tantalum

•

Platinum and rhodium

Flanges Lining

SR

Temperature range

( C)

−20 to +80

HR

SPR

PTFE

E-CTFE

SR

HR

SPR

PTFE

E-CTFE

0 to +80

+5 to +80

−20 to +110

−20 to +110

−35 to +80

0 to +80

+5 to +80

−35 to +150

−35 to +120

Sensor design version

Grounding

Manufacturing materials

Surface finish

AC power supply

Sensor size

DN25 to DN1200

DN25 to DN1200

DN40 to DN1200

DN15 to DN1200

DN300 to DN1200

DN25 to DN1200

DN25 to DN1200

DN40 to DN1200

DN15 to DN1200

DN300 to DN1200

Flanged DN15 to DN1200

Wafer DN25 to DN200

On flanges

With grounding rings

Grounding electrode (DN25 to DN1200 for PTFE, HR, SR)

(DN40 to DN1200 for SPR)

(DN300 to DN1200 for E-CTFE)

Transmitter housing: pressure casting, Al alloy

Sensor connection box: pressure casting, Al alloy

Sensor: measuring tube – stainless steel 1.4301

Sensor flanges and casing: standard – carbon steel

optional – stainless steel 1.4301

Transmitter housing: powder paint

Sensor connection box: powder paint

Sensor flanges and casing: standard – polyurethane paint

All-stainless-steel sensor: shot blasting

95 to 250VAC, 45 to 65Hz, 3VA max.

Internal fuse: T 1.25 A/250 V, 5 x 20 mm




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DC power supply

Magnetic field

Back-up battery

Operating environment

Protection class

Pressure loss

24V

± 20% (19.2 to 28.8 VDC) , 3W max.

Internal fuse: T 2A/250V, 5 x 20mm

Pulse unidirectional field

Selectable frequencies 1.56Hz; 3.125Hz; 6.25Hz;12.5Hz

CR2032

Free of explosion risk

Transmitter: IP 67, optional IP 68

Sensor: standard IP 67, optional IP 68 (remote meter version)

Negligible provided the sensor and connected piping are of the same inner diameter

30min Starting time

Functions and properties

Meter display

Control elements

Language

Physical units of displayed quantities

Functions

Zero insensitivity

Condition following power cut

Graphic backlighted OLED, 128 x 64 pixels

Optical reflex sensors actuated by touch across the front viewing window in the transmitter

Czech, English, Dutch, Spanish, Polish, French, Italiano, German,

Russian or Portuguese

Metric

US

Imperial

Bidirectional measurements of:

•

Volume flow rate

•

Aggregate fluid volume passed through the meter sensor

Communication with external equipment

Archiving of measured data and extraordinary operational events

Sensor flooding check

Selectable

Summary counters:

Meter configuration and setting:

No change

No change

Diagnostic and error messages: Stored

Multifunction outputs: Open

Current output The last value prior to the power cut retained

Process parameters

Fluid temperature

Pressure class

Compact meter version: standard −20 

C to +70



C

optional −35 

C to +70



C

Remote meter version: standard −20 

C to +110



C

optional −35 

C to +150



C

PN 40 (4.0MPa) for DN15 to DN50




Class 150 ASME B16.5 for NPS ½“ to 24“

≤ 2%

≤ 5%

Solid particle content

Gas content



Storage temperature

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Environment

Ambient temperature


Standard: −20°C to +70°C, no condensation

Optional: −40°C to +70°C, no condensation

−10°C to +70 

C, no condensation (for HR , SR, PTFE, E-CTFE)

+5°C to +70 

C, no condensation (for SPR)

Measurement accuracy

Reference conditions

Measurement accuracy at reference conditions

See Chapter 9 (CALIBRATION)

Standard: Class 2 acc. to EN ISO 4064-1

Q

3

/Q

1

= 400

On request, for example:

±0.5% of the measured value for flow rate 5 to 100% Q

4

±0. % of the measured value for flow rate 10 to 100% Q

4

Outputs

1 × Current output 4 to 20mA

2 x Multifunctional output

Passive: electrically insulated from the ground and other outputs;

Uextmax = 30V, Uextmin = 8V, Rzmax = 800 Ω, Rzmin = 250 

Communication interfaces

Passive: electrically insulated from the ground and other outputs;

Uextmax = 30V, Imax = 50mA

Open collector

Operational modes:

Frequency: frequency range 0 to 10kHz, duty cycle 1:1

Pulse: Maximum frequency 100Hz

Pulse length 1 to 999ms

Binary:

Selectable pulse number

Output negation

Exceeding limit values of measured quantities

Error messages

Output negation

•

RS-485 MODBUS RTU, electrically insulated from the ground and other outputs

Cables

Data and power cables

Signal cable for remote meter version

Communication cable

Cable glands

Common cables for application in measurement and regulation systems

Data cables: twisted pair of conductors, 90% shielding

Supplied with the meter:

•

Sensor version of IP 67: maximum cable length 150 m

•

Sensor version of IP 68: maximum cable length 150 m

Twisted pair of conductors with common shielding; bus-bar cable, type A according to standard EN 61158-2

Compact meter version:

•

Transmitter: 2 pcs of glands M20x1.5

Remote meter version:

•

Transmitter: 2 pcs of glands M20x1.5

Sensor connection box: 1 pc of gland M20x1



Page 47 of 72



9 CALIBRATION

9.1 General

The flowmeter is supplied verified as to its functions, calibrated and with parameters set according to the customer’s requirements.

The measurement accuracy of the flowmeter in its standard form and configuration is guaranteed to meet the provisions of the international standard EN ISO 4064-1 : Water meters for cold drinking water and hot water .

Unless agreed otherwise with the customer, the flowmeters are calibrated using the frequency output 0

– 10kHz.

Upon special requirement and agreement with the flowmeter manufacturer, the meter calibration may be carried out using alternative, i.e. pulse or current outputs.

The guaranteed measurement accuracy parameters shall always be related to the type of output which was used for the meter calibration. The remaining two types of output are recommended to be used for measurements with accuracy lower by 1 to 2% compared to that associated with the calibrated output.

For inspection or comparison measurements at the customer’s premises, or metrological verification of the meter parameters, the same type of electric output as that used for the initial calibration at the manufacturing plant shall be selected. Such measurements shall be performed under specified reference conditions.

At such measurements it is important to connect the hydraulic meter section (the sensor) into the hydraulic circuit on the test stand using connection elements (flanges, threaded fittings, fittings used in food-processing lines or others) of the same type, size and design as found on the meter sensor, to prevent occurrence of hydraulic disturbances that might significantly affect the meter measurement accuracy.

9.2 Reference conditions

Measured fluid: water, temperature 22

 C ± 4

Ambient temperature: 22

 C ±

Electrical conductivity of the measured fluid > 300μS

Straight piping sections ≥ 10 before and 5 after the flowmeter

Minimum medium pressure at the meter output: 1 bar

Time for the meter temperature stabilisation: > 30min

The sensor to be centred, grounded and supplied with power as required by the product manual

The meter shall be set for zero flow rate

9.3 Measurement accuracy

9.3.1 Flowmeter FLONET FH30xx – standard measurement accuracy

The meter accuracy shall meet the requirements of standard EN ISO 4064-1 (Water meters for cold drinking water and hot water).

Definitions according to EN ISO 4064-1:

Q

4

Q

2

Q

3

= 1.25

Q

1

= 1.6

Q

4 flow rate for fluid flow velocity at the meter sensor of 10 m/s.

Q

1

flow rate for fluid flow velocity at the meter sensor of 0.025 m/s





Standard metrological parameters according to EN ISO 4064-1

6

4

2

0

-2

-4

-6

Q1 Q2 Q3

Page 48 of 72

Q4

Rated inner diameter

Flow rates Q

1

, Q

2

, Q

3

and Q

4

for various meter sizes

Overloading flow rate Q

4

Continuous flow rate Q

3

Transient flow rate Q

2

Minimum flow rate Q

1

DN (m 3 /h) (m 3 /h) (m 3 /h) (m 3 /h)

80

100

125

150

200

250

300

350

15

20

25

32

40

50

65

400

500

600

700

800

900

1000

1200

4 500

7 200

10 000

14 000

18 000

23 000

28 000

40 000

180

280

430

650

1 150

1 800

2 520

3 500

6.5

12

18

30

45

72

120

144

224

344

520

920

1 440

2 016

2 800

5

10

14

24

36

58

96

3 600

5 760

8 000

11 200

14 400

18 400

22 400

32 000

14.40

23.04

32.00

44.80

57.60

73.60

89.60

128.00

0.0208

0.0384

0.0576

0.0960

0.1440

0.2304

0.3840

0.5760

0.90

1.38

2.08

3.68

5.76

8.06

11.20

9.00

14.40

20.00

28.00

36.00

46.00

56.00

80.00

0.0130

0.0240

0.0360

0.0600

0.0900

0.1440

0.2400

0.3600

0.56

0.86

1.30

2.30

3.60

5.04

7.00

Measurement range Q

3

/Q

1

400




Page 49 of 72


9.3.2 Flowmeter FLONET FH30xx – increased measurement accuracy

For zero flow-rate setting and reference conditions:

Relative error

±0.5%

±0. % of the measured value

Flow rate range

5 –100% Q

4

10 –100% Q

4 of the measured value

Upon agreement with the manufacturer, flowmeters may be supplied with other (optional) accuracy parameters.

10 METER DESIGN DETAILS

10.1 Transmitter

Transmitter C14.00/C15.00 is fitted in a box made of aluminium alloy with removable front and rear covers.

Behind the window in the front cover there is a backlighted OLED display of 128x64 pixels. The flowmeter control is facilitated by optical buttons (optical reflex sensors) actuated by touching the respective spots on the front window.

The transmitter terminals can be accessed upon removal of the solid rear cover. When closed, the lid position is secured by means of an Allen bolt.

External cables can be brought into the terminal compartment via two glands accommodated in threaded holes M20 x 1.5. Should the meter configuration or higher number of output signals require so, inserted in the cable gland can be a sealing insert with more holes to hold the required number of cables.

This sealing insert is not included among the standard meter accessories.

Located at the top of the transmitter box is a grounding bolt and a flat area intended for the flowmeter rating plate. The transmitter plate is attached to the rear cover on the transmitter housing.

The surface finish of the housing consists of powder paint coating.

The connections of the transmitter terminals are described in Chapter 5 (ELECTRICAL CONNECTIONS).

The transmitter for the compact meter version (including a sensor of protection class

IP67) is supplied with the signal cable attached.

The transmitter for the remote meter version (used in combination with a sensor of protection class IP 68) is provided with a connector for the signal cable connection. The other end of the signal cable is attached to the sensor where the terminals inside the hermetic connection box are embedded in an insulating compound.

10.2 Sensor

The induction sensor consists of a measuring tube made of non-magnetic steel with insulation lining, two measuring electrodes and, in some cases, one grounding electrode. Located outside the measuring tube is a winding the function of which is to generate electromagnetic field perpendicular to the measuring electrode axis. The excitation winding and measuring electrodes are protected by the sensor housing made of carbon or stainless steel. In its standard design version, the sensor is provided with flanges according to EN 1092-1 or ANSI B16.5. Upon agreement with the manufacturer, other types of flanges can be provided.

The sensor can also be supplied in all-stainless-steel design.


Thermal insulation. Elis FLONET FH30 Series

4.6 Thermal insulation

4.7 Flowmeter heating

5 ELECTRICAL CONNECTIONS

5.1 Transmitter

5.2 Sensor connection box

5.3 Power and information cables

5.4 Cable placement

5.5 Power supply specifications

5.6 Input and output connections

5.6.3.1 Communication interface RS-485 MODBUS RTU

5.7 Grounding and potential equalising

6 METER COMMISSIONING

6.1 Check on electrical connections

6.2 Check on meter housing tightness

6.3 Check on the installed meter

6.4 Check on the meter operation conditions

7 OPERATION

7.1 Meter energising

7.2 Front panel and control buttons

7.3 Flowmeter control

7.3.1.1 Basic screen

-

Error and diagnostic messages

User password

7.3.1.2 Main menu

FLONET FH30xx control menu structure

Remote meter control using the FLOSET 4.0 program

7.3.2.1 Communication interface MODBUS RTU

8 TECHNICAL DATA

9 CALIBRATION

9.1 General

9.2 Reference conditions

9.3 Measurement accuracy

flow rate for fluid flow velocity at the meter sensor of 0.025 m/s

10 METER DESIGN DETAILS

10.1 Transmitter

10.2 Sensor

Related manuals

Table of contents

Thermal insulation. Elis FLONET FH30 Series

4.6 Thermal insulation

4.7 Flowmeter heating

5 ELECTRICAL CONNECTIONS

5.1 Transmitter

5.2 Sensor connection box

5.3 Power and information cables

5.4 Cable placement

5.5 Power supply specifications

5.6 Input and output connections

5.6.3.1 Communication interface RS-485 MODBUS RTU

5.7 Grounding and potential equalising

6 METER COMMISSIONING

6.1 Check on electrical connections

6.2 Check on meter housing tightness

6.3 Check on the installed meter

6.4 Check on the meter operation conditions

7 OPERATION

7.1 Meter energising

7.2 Front panel and control buttons

7.3 Flowmeter control

7.3.1.1 Basic screen

-

Error and diagnostic messages

User password

7.3.1.2 Main menu

FLONET FH30xx control menu structure

Remote meter control using the FLOSET 4.0 program

7.3.2.1 Communication interface MODBUS RTU

8 TECHNICAL DATA

9 CALIBRATION

9.1 General

9.2 Reference conditions

9.3 Measurement accuracy

flow rate for fluid flow velocity at the meter sensor of 0.025 m/s

10 METER DESIGN DETAILS

10.1 Transmitter

10.2 Sensor

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Elis

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Elis

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Elis

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Staco Energy

924

Table of contents