KROHNE VFM1091 User Manual

4/2001

)

Vortex flowmeter

Installation and Operating Instructions

FM 1091(I

Contents

Part A System installation and start-up

1. Description 4

2. Installation in the pipe line 4 – 6

2.1 General

2.2 Sandwich type to DIN 19205 / ANSI 6

2.3 Flanged type to DIN 2501 / ANSI B16.5 (SCH-40) 6

2.4 Temperature / Pressure Measurement for

External Density Compensation 6

3. Electrical connection 7-8

3.1 Installation location and cable diameter 7

3.2 Connection to power

3.3 Outputs

3.3.1 Abbreviations 7

3.3.2 Current (analog) output I 7

3.3.3 Connection between VFS1000 (I) F and VFC 091 F 8

3.3.4 Pulse Output P 8

4. Start-up 8

Part B Signal converter VFC 091

5 Operation of the signal converter 9

5.1 General 9

5.1.1 Starting up signal converter 9

5. I.2 Measurement mode 9

5.1.3 Programming or menu mode 9

5.1.4 Error handling 9

5.2 Operating and check elements 10

5.3 Program organization and programming chart 11

5.3.1 Menu levels 11

5.3.2 Programming chart 12

5.3.3 Description of keys 12

5.4 Programming and function of keys 14+15

5.5 Error Messages 16

5.5.1 Error Messages in Measurement mode 16

5.5.2 Error Messages in Programming mode 16

6. Description of programme functions 7-23

6.1 Numerical order description 7-20

6.2 Functional order description 20

6.2.1 Physical units 20

6.2.2 Numerical format 21

6.2.3 Display 21

6.2.4 Flow range and meter size 21

6.2.5 Primary information 22

6.2.6 Application information 22

6.2.7 Internal Electronic Totalizer 22

6.2.8 Current (analog) output I 22

6.2.9 Pulse. output P 22-23

6.2.10 Coding desired for entry into programming mode 23

6.2.11 Behaviour of outputs during programming 23

6.2.12 HART® Programmability 23

6.2.13 Functions through HHC 24

6.2.14 Generic Online Menu Tree 25

Part C Functional checks and Trouble shooting hints

7. Functional checks 26

7.1 Primary head functional checks 26

7.1. Vortex Sensor 26

7.2 Signal converter functional checks 26

7.2.1 Self diagnostics 26

7.2.2 Display check 26

7.2.3 Current output check 26

7.2.4 Pulse output check 26

7.2.5 Frequency measurement check 26

8. Trouble shooting hints 27

Part D VFM 1091 (I) Ex

9. Description of the system 28

9.1 Temperature class 28

9.2 Electrical connection 28

10. Field connection diagram 29

11. Nameplate & Certificates of VFM 1091(I) Ex 29-30

Part E Technical data 31-50

Part A system installation and start-up

1. Description

KRONHE MARSHALL vortex flowmeters operate on the Karman vortex street principle to measure volumetric flow rate of gases /steam and liquids. VFM 1091 computes normalized volumetric and mass flow rates from operating & normalized density values supplied through operator interface.

Items included with shipment for Compact flowmeter

• Compact Vortex flowmeter and operating instructions

• Installation and Operating Instructions

• Mounting bolts, washers, nuts

• Programming chart indicating factory configuration setting

• Optional upstream and downstream pipes

• Gaskets between primary head & pipeline

Items included with shipment for field mounted Flowmeter

• Field mounted sensor VFS 1091 F

• Pipe/Wall mounted separated signal converter VFC 091F

• Connecting Cable (10m) between VFS 1091 F & VFC 091F

• Installation and Operating Instructions

• Mounting bolts, washers, nuts

• Programming chart indicating factory setting.

Provided by customer

• All cables for electrical connections.

2. Installation in the pipeline

2.Difference between inside diameters of primary head and pipeline

DΝ Meter size of primary head in millimeters or Inches Φ Inside diameter of primary head in millimeters Max. ∆Φ allowable difference between inside

diameters of primary head and pipeline

SIZE φ ∆φ SIZE φ ∆φ

(mm)

(inch)

10S 8.9

(0.35)

10 12.6

(0.50)

15 14.9

(0.59)

20 20.9

(0.82)

25 28.5

(1.12)

40 43.1

(1.70)

50 54.5

(2.15)

80 82.5

(3.25)

100 107.1

(4.22)

150 159.3

(6.27)

200 206.5

(8.13) 1 (0.039)

(inch)

0.4

(0.016)

0.4

(0.016)

0.4

(0.016)

0.4

(0.016)

0.4

(0.016)

0.4

(0.016)

0.6

(0.024)

0.6

(0.024)

0.6

(0.024)

0.8

(0.031)

(inch)

3/8"S 8.9

(inch)

(0.35)

3/8" 12.6

(0.50)

1/2" 14.9

(0.59)

3/4" 20.9

(0.82)

1" 26.7

(1.05)

1/5" 40.9

(1.61)

2" 52.6

(2.07)

3" 78

(3.07)

4" 102.4

(4.03)

6" 154.2

(6.07)

8" 202.7

(7.98) 1 (0.039)

(inch)

(0.016)

(0.024)

(0.031)

Ensure that the bore of upstream and down-stream pipes are smooth and without deposits or scaling of welding beads.

0.4

0.6

0.8

2.1 General

1. Flow direction and meter position -

• Flow must always be in the direction of the arrow, bluff side of

vortex-shedding body facing incoming flow i.e. upstream side.

• Vertical pipe run: upward flow direction

• Horizontal pipe run: see below

3. Straight, unimpeded inlet and outlet runs

D = Meter size (Nominal Dia. DN)

CONTROL VALVE

BALL/GATE VALVE (FULLY OPEN)

2 X 90

BENDS 3-DIMENSIONAL (SAME FOR 3 X 90

2 X 90

BENDS

OR “T” PIEC

BENDS)

EXPANDER

REDUCER

Flexible pipes or bellows may be used before the upstream and after the downstream in case the vibrations are too high. Pipe vibration limit is

0.2 g peak to peak up to 8-500 Hz crossover frequency. (which equals

0.75 mm)

FLOW STRAIGHTENER

SPACIAL FLOW STRAIGHTENER

With flow straightener the inlet pipe length may be halved e.g. for a control valve the inlet length is 25D instead of 50D. The minimum inlet pipe length including flow straightener must always be 12 D. The small sizes (below 1" or DN 25) come with upstream & downstream pipelines & flange connections to suit customer's flanges.

4. Pipe vibration

Caused, for example, by the action of pumps, valves, etc., will falsify measurements particularly at low flow velocities. Support the pipeline on both sides of the flowmeter; in the direction perpendicular to both the pipeline & bluffbody axis.

SANDWICH VERSION

5. Pipeline along a wall

Where possible, the distance between the pipe centerline and wall should be greater than 0.5 m (20”). If it is less, first connect all cables to terminals in the connection compartment (power supply and outputs) and run them via an intermediate connection box (see also Section 3) before installing the flowmeter.

Do not lag (Thermally insulate) the meter body.

6. Orientation

• Turn the Display board through ±90 or 180 to obtain horizontal

positioning of the display.

• Turn the signal converter housing through ±900 or 1800 should that

be more suitable for the location of the installation.

7. State of Medium

• Ensure single-phase flow. Liquid droplets in gas / vapour, solid

particles in gas/liquid & gas bubbles in liquid are not permitted. In Liquid application e.g. water; to prevent cavitation, minimum D/S

pressure is given by the relation: Pds (bar_g) >= (2.9* DP)+ (1.3 * Ps) - 1.013 where DP= pr.drop of VFM in Bar from sizing

program.

Ps= Sat.pr.in Bar at op.temp

FLANGED VERSION

• In case of steam or compressed gas, a moisture separator may be used

compensation

50D upstream of the meter if the dryness fraction is less than 95%.

• For gases, a filter or strainer may be used to remove solid particles.

This is specially important for meter sizes below 1".

2.2 Sandwich type to DIN 19205 / ANSI

• Meter sizes DN25, 40, 50, 80, 100 and 150 (1" to 6")

• Pipe flanges

(Pressure Ratings DIN: DN25/PN40, 100; DN40/PN40, 100; DN50/PN40, 64, 100; DN80/PN40, 64, 100; DN100/PN16, 40, 64 and DN150 / PN16, 40. ANSI: 1" to 6” / #150, 300 SORF)

• Gaskets inside diameter must be greater than the inside diameter of the

Primary head, e.g. Use flat gaskets to DIN 2690, Gaskets must not project into the effective pipe cross sectional area. washers, nuts and bolts are

2.3 Flanged type to DIN 2501 / ANSI B 16.5(SCH-40)

• Meter sizes DN10S, 10, 15, 20, 25, 40, 50, 80, 100, 150

and 200 (3/8"S to 8")

• Pipe flanges

(Pressure ratings DIN: DN25/PN40, 100, DN40/PN40, 100; DN50/PN40, 64, 100;

DN80/ PN40, 64, 100, DN 100 /PN16, 40, 64; DN150/PN16, PN40, DN200/PN10, 16 and

ANSI: 1/2” to 8" / # 150, 300 SORF)

• Gaskets are supplied by us with flanged unit.

• check flange connection for leak-tightness after

flowmeter installation.

2.4 Temperature / Pressure measurement for External density

To measure the temperature and pressure of the medium for either mass flow/normalized f1ow computation using external flow computer or measure operating density using external pressure and temperature measurement (e.g. to feed the density value in the VFM off-line mass or normalized flow computation) suitable measuring points should

• Bolts, nuts and washers are supplied with meter, check flange

connection for leak-tightness after flowmeter installation.

Installation upstream of f1owmeter

Min. distance: 20*DN (DN = meter size) Installation downstream of flowmeter

Min. distance: 5*DN (DN = meter size)

Allowance must be made for the pressure drop in the flowmeter as correction value for operating conditions prevailing upstream of the flowmeter.

3. Electrical Connection

3.1 Installation Location & Cable diameter

Location

• Do not expose the compact flowmeter to direct sunlight Install a

sunshade if necessary.

• Do not expose to intense vibration. If necessary support the pipeline

to the left right of the flowmeter.

• The rotating design of the housing makes it easier to connect the two

cables for power and outputs to the terminals in the rear terminal box.

Cable diameter

• To conform to protection category requirements, observe

• the following recommendations :

• Cable diameter: 8 to 13 mm (0.31" to 0.51")

• Enlarge the inside diameter of the Screwed conduit entry by

removing the appropriate onion ring(s) from the seal, only if cables have extremely tight fit.

• Fit blanking plug PG16 and apply sealant to unused cable entries.

• Do not kink cables at conduit entries

• Provide water drip point (U bend in cable).

Conduit Installation, general wiring considerations

When electrical codes require conduit, it must be installed in such a manner that the meter connection compartment remains at all dry times.

3.2 Connection to loop power supply

• In case of functional extra low voltages (24VDC) protective

separation in conformity with VDE 400 part 410, or equivalent national standard, must be ensured.

• Hazardous area application will require the connection of

protective Earth.

• Connection to power, VFM 1091 K

• Current and frequency outputs are galvanically isolated when the

optional ground above is not used and can therefore be simultaneously connected to a receiver instrument which is grounded or separately connected to two receiver instruments.

• Ensure that 24V, 4-20 mA loop is grounded at one point only (i.e.

either at the input of the signal converter or at the input of the indicator, or at the output of the Power Supply). Do not ground the loop at more than one point.

3.3 Outputs

3.3.l Abbreviations

Abbreviation Stands for

EC EMC P P

100%

Electronic counter Electro-mechanical counter Pulse output Pulses for Q =100% flow rate 0% flow rate Full-scale range, 100%. flow rate.

3.3.2 Current (analog) output I

• The current output is galvanically isolated from Pulse output P.

• Max. load at terminals 5/6

U – 12 V

max. load in Kohms

R =

20mA

<1200 ohms

Programming

via Fct. No....

1.3.X

1.3.2

1.1.2

1.1.2+1.3.2

Description

see Sect....

3.2+3.3.4

3.2

6.1+6.2.9

6.2.9

6.1

6.1+6.2.9

3.3.3 Connection between VFS1091 & VFC 091F

3.3.4 Pulse out put

• The pulse output is galvanically isolated from the 4-20mA current output and may be optionally grounded.

• All functions and operating data are programmable; see Section 5, 6.1 6.2.9

• Factory-set data and functions are listed in the enclosed report on settings. This can also be used to record any changes made to the operating

parameters.

• Passive frequency output, open collector for connection of active electronic counters EC or switchgear, input voltage 5 to 25V, load current max.

100 mA, min load resistance RL 250, selectable pulse width duty cycle or 250 mSec

4. Start-up

• Check that the system has been correctly installed as described in Sect. 1, 2 and 3.

• Before initial start-up check that the following details on the nameplate agree with the data specified in the report of settings for the signal

converter. If not, reprogramming will be necessary.

Meter size Fct3.1.1, Sect. 6.1, 6.2.5.

K-Factor Fct 3.1.2, Sect. 6.1, 6.2.5.

• The flowmeter is ready for service 15 minutes (waiting time) after switching on the power source. Increase flow velocity slowly and steadily.

• Avoid abrupt changes in pressure in the pipeline.

• If the process medium is steam, condensate may form initially and cause faulty measurements when the system is started up for the first time.

• When powered, the signal converter normally operates in the measurement mode. The power-on sequence to measurement mode is as follows:

“TEST” is displayed for approx. 3 seconds followed by “VFM 1091 ” the instrument type followed by “Ver x.xx” the software version of the instrument.

Then instrument operates in measurement mode where it displays the parameter being measured Or FATAL ERROR if there are one or more critical errors detected (For description on errors refer Sect. 5.5.)

Part B Signal Converter VFC 091

5. Opening of the signal converter

5.1 General

5.1.1 Starting up signal converter

When power is switched ON to signal converter it displays TEST, VFM, 1091 & Ver.x.x.x and then goes to measurement mode. In this initial sequence VFM 1091 (I) carries out self-diagnostics to check its own functiona1elements and loads the configuration data from non-volatile memory. If any error(s) are detected in power on diagnostics converter displays to carry normal measurements. The first measured parameter displayed is the one being displayed when power supply was removed last time.

5.1.2 Measurement Mode

In measurement mode, the parameters that converter measures/computes are shown on display in the appropriate units. (See Sect. 5.2 for display details). As per the configuration, display can be either in non- cyclic/cyclic mode. In non cyclic mode of display, use key to see the next parameter on display. In cyclic mode display shows all parameters one after another, wherein each parameter is displayed for about 6 seconds.

While in the measurement mode, the flow and the current values can be monitored using the HART values, the communicator also displays the minimum and maximum values of flow values, which are programmed into the device.

5.1.3 Programming or menu mode

All the configuration/settings/test functions are grouped in the form of menu having a tree structure (see Sect. 5.3.1 for details) and are accessible in the programming mode. Operator can view or alter the present settings, data values by the use of functions available in this mode. VFC091 implements all the universal commands and relevant common practice commands of HART parameters using HART All changes made in programming mode are stored in non-volatile memory and have appropriate effect on the operation of signal converter. While being programmed (i.e. while in the menu), the instrument will stop making further measurements and the current O/P will be frozen to the last value, pulse O/P will also stop. The changes made using the HART data to the device. After data is received, VFC091 updates the configuration n with thenewly received data. During the updation period, the measurement is interrupted. (The updation time is less than half second).

5.1.4 Error handling

Communicator. These are mainly flow-related parameters.

communicator are stored in the communicator till you request to "Send" the

FATAL. ERROR since instrument has critical error(s) and is not able

Communicator. Other than flow and current

this enables you to program some of the main

Converter can detect errors during power-on diagnostics as well as when in normal measurement mode. Errors are put into two main categories viz. fatal errors and non-fatal errors. Fatal errors cause measurement to stop since they are serious in nature. Non-fatal errors do not affect functionality of the converter. If one or more errors are present, display (in measurement mode) starts blinking. If programmed so, error information is shown on display interleaved between display of two parameters.

5.2 Operating & check elements

Caution To avoid damage to electronics, be certain that the area around the meter is dry before removing electronics compartment cover.

The operating elements are accessible after removing the cover of the electronics section using the special wrench supplied.

Caution

Do not damage screw thread, never allow dirt to accumulate,

and make sure it is well greased at all times.

Display, 1st line

Display, 2nd line

Display, 3rd line

q v Volumetric flow rate

q n Normalised volumetric flow rate

q m Massflow rate

S Totalizer value

u Velocity of medium

F Vortex frequency

Keys for Programming the Signal Converter, refer

To Sect.5.4 for function of keys.

5.3 Program organization & programming chart

5.3.1 Menu levels

The program for the signal converter consists of 5 levels. The 1

line of display will identify the menu levels during programming

Actual Display

Fct 1.0

OPERATION

Fct

2.0

TEST

Fct 3.0

INSTALL.

Fct 1.1.0

BASIS PARAM

Fct 1.2.0

DISPLAY

Fct 1.3.0

PULS O/P.

Fct 3.1.0

BASIS PARAM

ct 3.2.0

USER DATA

ct 3.3.0

APPLICAT

ct 1.1.1-1.1.4

ct 1.2.1-1.2.6

ct 1.3.1-1.3.3

ct 2.1-2.3

ct 3.1.1-3.1.2

ct 3.2.1-3.2.3

ct 3.3.1-3.3.4

A C C E S S

T O

S E T T

I N G S

O R

D A T A

P O S S

I B L E

A T

T H

I S

L E V E L

O N L Y

Measuring mode level

Main menu

Submenu level

Function level

Data level

level

5.4 Program organization & function keys

Function of keys in measurement mode:

After power-on, the signal converter enters the normal measuring mode. Display shows the actual measured value of the parameter, units and

arrow markers to identify parameter. A steady (non-blinking) display indicates that there are no errors in measuring mode. Use key to get the

next parameter on display. If display is in cyclic mode (Fct 1.2.6 CYCLE DISP as YES) the next parameter is displayed after every 6 seconds

and key has no function.

Use the key to go to the programming mode If Fct.3.2.1 ENTRY. CODE.1 is YES then converter will ask for the Code 1 password. Password

is the following sequence of 9 key operations Press key to go back to normal display.

Use the key results in prompt for Code 2 password. Code 2 password is predefined and reserved for Khrone Marshall service person.

Operator should not use key at normal display. If used by accident then give any arbitrary key sequence to code 2 prompt until display gets

back to normal.

Using keys in measuring mode

KEY FUNCTION

Without

Followed by 9 keys Coding, dependent on programming Fct.3.2.1. Go to programming mode.

With

Displaying next parameter measured or next error message

(Fct.1.2.5 as YES for error message)

if in non cyclic mode (Fct.1.2.6 as NO) In cyclic mode the key has no function

Reserved for use by Khrone Marshall

Functions of keys in programming mode:

Programming and other functions are grouped in a menu having tree structure. To navigate in the menu tree use keys as follows.

To go into the branch i.e., from main menu level to submenu level or submenu level to function level. If you go were already at function level then that function will be executed.

Selects other options/branches at the same level.

Takes you one level back. If you were already at main menu level then this key takes you back to measurement mode.

Programming functions involve one or more of the following types of data.

1. Selecting an option from option list – Initially present option is displayed in second line of displayed and display blinks to indicate that there are other choices. Use the key to scroll through all options one by one. Using will cause that option to be selected and also completes selection process.

2. Entering a numeric value-You can enter +ve or –ve number in floating point with exponent notation.

-9

Rang : 0.0001 x 10

to 9.9999 x 10 9

Format: d.dddd E-d

e.g 1.2345 E-3, 1.2345E6

Method of entry: Initially present value is displayed in the first line display. A flashing digit will change by using key. Select next digit

position in sequence and terminates entry of the number.

Note:

a) Digits cycle through 0-9 values. A sign fields cycles as “ “ and “ – “ for exponent negative

b) When you enter a value beyond its limit then you get message d.ddddEd (MIN. VALUE) or d.ddddEd (MAX VALUE). Press after

you have noted limit and then correct value to be in valid limits.

c) If you don’t want to change value press at the beginning itself !

Using keys in programming mode

Key Main menu level Submenu Data level

Function level

Option/Units Numerical values / strings

Select main menu Select submenu or function select next Change flashing digit or

Proposal Character Proposal

Enter displayed Enter displayed submenu Shift flashing digit or

Main menu (execute) function character position

Quit programming Return to main menu Select displayed Enter the displayed numerical

Mode and go back or submenu proposal and return value or alphanumerical

To measurement to function level if no string. Then return to

Mode further data entry is function level if no further

required by the required by that function

function

Newly entered data will be saved in non-volatile memory and accepted by measuring program only after termination of programming mode as

described below.

Pressing the key at main menu level quits the programming mode. Before exiting programming mode, device updates the configuration

according to the changes done in the menu.

Programming using HART® based communicator

While in the measuring mode the communicator displays the measured values of flow, the computed current output value and Qmax, Qmin

values programmed into the device. Using the communicator, you can see / modify many of the device parameters. For details of using HART®

Communicator please refer the HART

reference. Please refer 6.2.12 for details of HART® programmability.

Communicator manual. The Generic Online Menu of the communicator is given in 6.2.14 for your quick

5.5 Error messages

5.5.1 Error messages in Measurement mode

Error message Type Description Corrective action required

INTL ERR. nn * Internal error in Switch off the power and try again. If the problem converter operation persists contact KHRONE MARSHALL service.

NO SIGNAL N No signal from No flow through the primary or Vortex sensor problem. the vortex sensor If sensor problem, contact KHRONE MARSHALL service.

LOW FREQ N Vortex frequency Check Flow rate>q min else call KHRONE MARSHALL Service. too low

HIGH FREQ N Vortex frequency Check Flow rate<q max else call KHRONE MARSHALL Service. too high

LOW FLOW N Flow rate lower than minimum flow Converter will continue to display actual flow rate. However rate q min accuracy of measurement may suffer.

HIGH FLOW N Actual flow rate Corrective action depends on application process. If flow higher than q max rate exceeds too much further it may damage entire instrument physically!

INV. CONFIG F Configuration date Check entire configuration again. If error persists-call in non-volatile memory KHRONE MARSHALL service. is not valid.

UC FAIL F Micro-Controller failure Contact KHRONE MARSHALL Service.

LCDC FAIL F LCD Controller IC (s) has Contact KHRONE MARSHALL Service.

failed (This error is applicable to users having display option)

KEY FAIL F Failure of Keys Contact KHRONE MARSHALL Service. (applicable to instrument which have display option)

NOVRAM FAIL F Non Volatile Memory Contact KHRONE MARSHALL Service. has failed LINE INTER N Supply interrupted Press keys to reset this error.

· This text is displayed for Fatal Errors. The nature of error is beyond the scope of user (failure of IC or other hardware inside converter electronics etc.). All that can be done is to switch OFF power and then try again. If error message continues, call KHRONE MARSHALL service. internal error nn = internal error number.

· Type N indicates non-fatal errors whereas F indicates fatal errors.

· Measurement stops if any Fatal error is encountered. This means that device makes flow rate equal to zero,

· Current output to minimum value 4m A & pulse output OFF.

· When errors are displayed during the measuring mode, 'n Err" (n = number) will appear in the 1st line. n gives the number of momentarily

occurring errors that are displayed alternately with the actual measured value.

· Error messages disappear when their cause disappears

5.5.2 Error Messages in Programming mode

Error in programming mode can only occur while entering any numerical value. When you enter numerical value outside possible limits you get message " n.nnn E n" in 1st line and MIN. VALUE or MAX VALVE or in the 2nd line ("MIN VALUE" if entered value is less than lower limit and “MAX VALVE “ if higher limit is crossed). Note the message indicating permissible limit then press the key to continue.

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