Technical Data Sheet No.: VTX180002 Rev. D
Date of Issue: September 2010
US Patent No. 4,862,750
OPERATING MANUAL
Vortex Meter
Aalborg7is a registered trademark of Aalborg Instruments & Controls.
NOTE: Aalborg7 reserves the right to change designs and dimensions at its sole
discretion at any time without notice. For certified dimensions please contact Aalborg7.
TABLE OF CONTENTS
1. GENERAL INFORMATION...................................................
1.1 General................................................................................................
1.2 Principles of Operation........................................................................
1.3 Sensor Operation.................................................................................
1.4 Calibration Factor.................................................................................
2. HANDLING AND STORAGE.................................................
2.1 Handling Precautions..........................................................................
2.2 Storage................................................................................................
3. INSTALLATION................................................................
3.1 Installation...........................................................................................
3.2 Selecting the Installation Site...............................................................
3.3 Piping Guidelines.................................................................................
3.4 Temperature and Pressure Taps..........................................................
3.5 Orientation...........................................................................................
3.6 Alignment Rings and Gaskets..............................................................
3.7 Identification Check..............................................................................
3.8 Installation Procedure..........................................................................
4. ELECTRONICS.....................................................................
4.1 Description................................................................................................
4.2 Specifications............................................................................................
4.3 Handling and Storage................................................................................
4.4 Mounting....................................................................................................
4.5. Wiring Connections..................................................................................
4.5.1 Power Supply Connections.......................................................................
4.5.2 Analog 4-20 mA Output Signals Connections............................................
4.5.3 Programmable optically isolated Output Signals Connections....................
4.5.4 Programmable optically isolated Flow Pulse Output
Signal Connections................................................................................
4.5.5 Communication Parameters and Connections..........................................
5. LCD KEYPAD OPERATION: DATA ENTRY AND CONFIGURATION...........
5.1 Display Indications......................................................................................
5.2 Menu Sequence.......................................................................................
5.3 Parameter Entry.........................................................................................
5.3.1 Submenu Program protection....................................................................
5.3.2 Submenu Flow Meter Info..........................................................................
5.3.3 Submenu Measuring Units........................................................................
5.3.4 Submenu L1 Alarm Menu...........................................................................
5.3.4.1 Submenu L2 Flow Alarm..........................................................................
5.3.4.2 Submenu L2 Temperature Alarm (*optional).......................................
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5.3.4.3 Submenu L2 Pressure Alarm (*optional).............................................
5.3.5 Submenu L1 Totalizer Menu................................................................
5.3.5.1 Submenu L2 Totalizer#1 and Totalizer#2 Menus..................................
5.3.5.2 Submenu L2 Pulse Output Menu................................................................
5.3.6 Submenu L1 Output Menu...................................................................
5.3.6.1 Submenu L2 Analog 4-20mA Menus....................................................
5.3.6.2 Submenu L2 Digital Optical Outputs Menus.........................................
5.3.6.3 Submenu L2 RS-485 Address Menus..................................................
5.3.7 Submenu L1 Calibration Menu................................................................
5.3.7.1 Submenu L2 PWM DSP Menu................................................................
5.3.7.2 Submenu L2 FFT DSP Menu................................................................
5.3.7.3 Submenu Meter Size.............................................................................
5.3.7.4 Submenu Meter Full Scale Range........................................................
5.3.7.6 Submenu Meter Low Flow Cut Off.......................................................
5.3.7.7 Submenu Meter Low Frequency Cut Off..............................................
5.3.7.8 Submenu Meter High Frequency Cut Off.............................................
5.3.7.9 Submenu Meter Vortex DSP Filter Coefficient..........................................
5.3.7.10 Submenu Meter Calibration Pilot Timer...............................................
5.3.8 Submenu L1 Date/Time Adjust Menu..................................................
5.3.9 Submenu L1 Fluid Menu........................................................................
5.3.9.1 Submenu L2 Flowing Fluid Menu........................................................
5.3.9.2 Submenu L2 Goyal-Doraiswamy Menu................................................
5.3.9.3 Submenu L2 API 2540 Menu..............................................................
5.3.9.4 Submenu Nat Gas AGA8 Menu............................................................
5.3.9.5 Submenu Other Gases Menu...............................................................
5.3.9.6 Submenu Cust Flow. Cond Menu........................................................
5.3.9.7 Submenu STD Temp. (F)......................................................................
5.3.9.8 Submenu STD Pres. (PSIA).................................................................
5.3.9.9 Submenu NORM Temp. (C).................................................................
5.3.9.10 Submenu NORM Pres. (KPA)..............................................................
5.3.10 Submenu L1 Diagnostic Menu.............................................................
5.3.10.1 Submenu L2 System Events Reg. Menu.............................................
5.3.10.2 Submenu L2 System Events Log Menu...............................................
5.3.10.3 Submenu Raw Pulse Counts................................................................
5.3.10.4 Submenu Pulse Frequency..................................................................
5.3.10.5 Submenu PWM Frequency...................................................................
5.3.10.6 Submenu AWD Frequency....................................................................
5.3.10.7 Submenu DSP FFT Output...................................................................
5.3.10.8 Submenu DSP FFT Output...................................................................
5.3.10.9 Submenu DSP FFT Average..................................................................
5.3.10.10 Submenu Piezo Sensors RMS.............................................................
5.3.10.11 Submenu Sensor Attenuation...............................................................
5.3.10.12 Submenu T/P ADC Output...................................................................
5.3.10.13 Submenu DAC Outputs Value..............................................................
5.3.10.14 Submenu CPU Temperature.................................................................
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5.3.11 Submenu L1 Display Menu......................................................................
5.3.11.1 Submenu Display Mode...........................................................................
5.3.11.2 Submenu Screen Cycle Time...................................................................
5.3.11.3 Submenu Screen Mask............................................................................
5.3.12 Submenu L1 Data Log Menu....................................................................
5.3.12.1 Submenu Data Logger Mode...................................................................
5.3.12.2 Submenu Data Log Configuration...........................................................
5.3.12.3 Submenu Log # of Samples.....................................................................
5.3.12.4 Submenu Process Variable.......................................................................
5.3.12.5 Submenu Samples Interval......................................................................
5.3.12.6 Submenu DL Start Condition...................................................................
5.3.12.7 Submenu DL Stop Condition...................................................................
5.3.12.8 Submenu Data Log Status.......................................................................
6. ANALOG CIRCUITRY CALIBRATION.............................................
6.1 Analog 4-20 mA output Circuitry calibration...........................................
6.1.1 Initial setup..............................................................................................
6.1.2 Analog 4-20 mA channel#1 output calibration.........................................
6.1.3 Analog 4-20 mA channel#2 output calibration.........................................
6.2 Temperature and Pressure Sensors Calibration*......................................
7. START UP...........................................................................
7.1 Cautions Prior to Start Up........................................................................
8. TROUBLESHOOTING.............................................................
8.1 Common Conditions................................................................................
8.2 Troubleshooting Guide.............................................................................
APPENDIX
APPENDIX A EEPROM VARIABLES........................................................
APPENDIX B VORTEX METER ASCII SOFTWARE INTERFACE COMMANDS........
APPENDIX C MECHANICAL DRAWINGS...................................................
APPENDIX D ELECTRICAL INTERCONNECT OPTIONS..................................
APPENDIX E CIRCUIT DIAGRAMS........................................................
WARRANTY..................................................................................
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1. GENERAL INFORMATION
1.1 General
Vortex Shedding is not new. Da Vinci observed vortex shedding in 1513. Von
Karman provided an empirically determined formula for it in 1911-1912. One
observes it as eddies downstream of a rock or a piling in a fast moving stream.
Yet, it wasn’t until it was successfully developed and installed in the late 1960’s
that this significant development in the science of flow measurement was given
considerable attention by industry.
1.2 Principles of Operation
With the controlled use of an obstruction installed in a given pipeline, vortices
are generated downstream of the obstruction when fluid or gas flows through
a pipe. A vortex is a swirling low pressure eddy which forms alternately from
side to side of the bluff body. With each eddy, there is formed a corresponding
high pressure pulse opposite the bluff body. (See Figure 1.) These pulses are
directly proportional to the velocity of a given fluid. Each pulse represents given
volumetric units of fluid for a given line size. Since each pulse represents a unit
volume, the output is therefore linear with respect to flow rate.
FIGURE 1
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1.3 Sensor Operation
Two pressure sensing devices are mounted in the pipe wall of the flow meter.
Inserted in its center is a stainless steel bluff body, on either side
of which alternating stresses are induced in response to the forming and
shedding of vortices. The piezo electric sensors detect the pressure pulses, and
their energy content is amplified in the preamplifier and processed to furnish an
output proportional to the rate of flow.
1.4 Calibration Factor
The frequency at which vortices are shed is a linear function of fluid velocity,
and therefore, a measure of flow. Vortex frequency is insensitive to density (temperature, pressure), the total volumetric flow of compressible fluids should however be adjusted to flow conditions other then calibration conditions. In the range
covered by the particular flowmeter, vortex frequency is insensitive to specific
gravity, viscosity, and temperature of the fluid and depends only upon the width
(d) in inches and shape of the flow element, and the inside diameter (D) of the
pipeline in inches.
The frequency is: F = SV/d
where : F = Karman vortex frequency
S = constant (Strouhal Number)
V = fluid velocity at the flow element
d = face width of the element
The frequency relationship is accurately linear and reproducible, eliminating the
need for “wet calibration.” (See Figure 2.)
2. HANDLING AND STORAGE
FIGURE 2
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2.1 Handling Precautions
The vortex flow meter has been tested at the factory. When the instrument is
received, it should be inspected for damage due to mishandling during
shipment. If damage is evident, report it to the carrier immediately and have
them present when the case is opened. They are responsible for any damage
during shipment. If you have any problems or questions, consult the factory or
your local representative.
2.2 Storage
After receiving the Flow Meter, care should be taken to avoid unnecessary
damage. If the meter is not scheduled to be installed soon after delivery, the
following steps should be observed:
A) After inspection, the meter should be repacked into its original packing.
B) If the meter being stored has been previously installed, care should be
taken to remove all process fluids and corrosives.
C) Select a clean, dry site free of mechanical vibration, shock and chemical
corrosives.
3. INSTALLATION
3.1 Installation
The Aalborg7 vortex flow meter is designed to operate under a wide variety of conditions. To ensure its longevity of operation, precautions should be taken before
and during its installation.
3.2 Selecting the Installation Site
A) The vortex meter requires a minimum of 20 straight diameters upstream
and 5 straight unobstructed diameters of downstream piping. One
diameter is equal to the internal pipe diameter. This is necessary to ensure
regulated formation of vortices. (See Figure 3 for the piping requirements
chart for various piping recommendations.)
B) Choose a site with minimal mechanical vibrations.
C) Avoid areas of high humidity or corrosive atmosphere where possible.
D) When installing the meter, choose a site which is accessible and allows
ease of wiring and maintenance.
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Piping Table
3.3 Piping Guidelines
FIGURE 3
TYPICAL PIPING
Recommended
Straight Pipe
Length “A”
REMARKS
Without
Vanes
With
Vanes
15D* 15D Closed branch
20D 15D
Elbow, Tee,
Branch pipe
25D 15D Elbow, 2 places
25D 15D Long-radius bends
30D
25D
15D
15D
Elbow
Long-radius bend
40D
35D
20D
20D
Elbow
Long-radius bend
20D 15D
Contracting pipe
40D 20D
Expanding pipe
Recommend Meter
Be Installed
Upstream
Regulating,
reducing valves Ball,
check valves
Shut-off valve
ALL FITTINGS IN SAME PLANE
FITTINGS IN
TWO PLANES
VARIED SECTION
VALVES
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Note : Straight pipe length on the downstream side to be 5 pipe
diameters minimum. *D = Pipe internal diameter.
To ensure the high accuracy of flow measurement specified on the identification
sheet, piping and installation instructions must be followed carefully.
A) The pipe immediately up and down stream of the flow meter must be of
sufficient length, straight and free of obstructions. Refer to the piping
requirements chart for exact dimensions (Figure 3).
B) It is recommended that straightening vanes be used on all vortex meters,
but it is not necessary.
C) The schedule of the pipe being used must match the schedule of the
meter for at least 20 diameters upstream and 5 diameters downstream of
the flow meter.
D) When the vortex meter is being used as a controller, it is recommended
that any regulating valve be located downstream of the flow meter.
E) Weld beads on the internal wall of the pipe before or after the flow meter
should be ground flush with the pipe wall before the meter is installed.
F) Proper style and proper size gaskets should always be used when
installing the flow meter.
G) The meter body and signal processor may be rotated into any position
permitted by the pipe flanges. The flow meter has no moving
parts and is not position sensitive.
3.4 Temperature and Pressure Taps (Optional)
Installation of temperature and pressure transducers (if used) should be in
accordance with the manufacturer’s specifications.
A) The temperature transducer should be installed between 2.5 and 3.5
diameters from the downstream side of the wafer body. Consult the
factory for the exact dimensions, or refer to additional information at the
end of this manual.
B) The pressure transducer should be installed between 2.0 and 3.5
diameters from the upstream side of the wafer body. Consult the factory
for the exact dimensions, or refer to additional information at the end of
this manual (See Figure 4).
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3.5 Orientation
FIGURE 4
The flow meter uses piezo-electric sensing elements with no moving parts. This
eliminates wear and allows for vertical or horizontal installation.
3.6 Alignment Rings and Gaskets
Alignment rings may be provided with the meter and should be used to ensure
proper alignment of the flow meter to the pipe flanges. Misalignment can result
in percentage errors and can even result in a non-functional meter.
Gasket size and correct installation are essential to accurate measurement.
Care should be taken when installing the flow meter to prevent the slightest
protrusion of the gasket into the flow line. The I.D. of the gasket should be 1/8
inch larger than the I.D. of the meter. This will prevent the gasket from slipping
into the line during installation.
3.7 Identification Check
Before continuing on to the installation of the flow meter, be sure that all of the
parameters of the application match or fall within the limits specified by the identification sheet. If more than one meter has been purchased, check the I.D.
sheet versus the meter tag to ensure that the correct meter is being installed.
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3.8 Installation Procedure
The Vortex Wafer flow meter is a flangeless style meter. It is installed between
pipe flanges using alignment rings through bolts and gaskets. The inside
diameter of the surrounding pipe should be identical to the I.D. of the meter.
The following installation procedures should be used to insure proper alignment
of the flow meter which in turn will insure accuracy:
A) Check the weldmount mating flanges for internal weld bead. If weld bead
exists in the pipeline, it must be ground flush with the pipe wall. Failure to
do this will result in high percentage errors and erratic outputs.
B) Check the pipe for proper alignment on both sides of the installation
location.
C) Check the overall piping. Be sure it meets or exceeds minimum straight
upstream and downstream requirements, approximately 20 diameter
upstream and 5 diameters downstream.
D) Check for adequate clearance on both sides of the signal processor
housing. A minimum distance of 24 inches is required for ease of wiring
and maintenance.
E) For meters over 150 lb. flange ratings, place the two purchased alignment
rings over the ends of the meter body.
F) Place the flange gaskets between the meter body and the opposing
flanges of the pipeline. Be sure that the arrow on the meter body is
indicating the correct direction of flow.
G) Insert the bolts through the bolt holes in the flanges and run the nuts
onto the bolts. Snug the nuts tight enough to hold the alignment.
H) Check the alignment of the meter body to the pipeline. Check the
concentricity of the gaskets, being sure that they are not protruding into
the flow line. The bolts should bear against the outside of the flange bolt
holes. (See Figure 5, end view of flange, alignment ring and gasket.)
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4. ELECTRONICS
WARNING!
WIRING THE TRANSMITTER WITH THE POWER ON MAY RESULT IN
INTERNAL DAMAGE OR LOSS OF MEMORY! PLEASE MAKE ALL
WIRING CONNECTIONS BEFORE SWITCHING ON THE POWER.
4.1 Description
The Smart Transmitter is supplied with all vortex flow meter. It is designed to
be locally mounted or wall mounted, remote from the meter, for easy user access.
The local keypad/display can be programmed to display various process variables:
instantaneous volumetric and mass flow rate, total flow, temperature*, pressure*
and density* in engineering units.
The flow rate can be displayed in 30 different volumetric and 25 mass flow engineering units. Flow meter parameters and functions can be programmed remotely via the RS-232/RS-485 interface or locally via LCD/KeyPad using multi level
menus. Vortex flow meters support various functions including: two programmable flow Totalizers, low, high or range flow, temperature* and pressure* Alarms,
two digital programmable optically isolated outputs, two programmable (for different process variables: volumetric flow, mass flow, temperature*, pressure*) 420 mA analog outputs, programmable optically isolated flow rate Pulse output,
battery backed Real Time Clock [RTC], programmable process Variable Data Log
FIGURE 5
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(total 15872 records) with date and time stamp, extensive Diagnostic events log
and register, and feature a password protected access to the process parameters
to ensure against tampering or resetting.
(* - optional feature)
4.2 Specifications
Fluid Types:
Steam, Gas, Liquid.
Flow Accuracy (Including Linearity):
±1% of AR.
Repeatability:
±0.25% of full scale.
Ambient Temperature:
-12 °C to 65 °C (-15 °F to 149 °F).
Fluid Temperature:
-20 °C to 232 °C std./to 260 °C opt.
(-3 °F to 450 °F std./to 500 °F opt).
Fluid Temperature Measurement Range*:
-20 to 260C (-4 to 500 °F).
Temperature Accuracy (Including Linearity)*:
+/- 0.5C
Fluid Pressure Measurement Range*:
can be ordered for following options: 0 - 100 PSIA
0 - 200 PSIA
0 - 300 PSIA
0 - 500 PSIA
0 - 750 PSIA
0 - 1000 PSIA
Pressure Accuracy (Including linearity)*
: +/- 0.5% of full scale.
Fluid Proof Pressure*:
3 X F.S.
Fluid Burst Pressure*:
10 X F.S.
Flow Response Time:
Adjustable based on Noise Redaction Filter (NRF) and
Damping settings (minimum 1000 ms).
Analog Output Signals:
Linear 4-20 mA, self-powered (sourcing type,
non-isolated), 600 ohms maximum loop resistance.
Optically Isolated Outputs:
UCE @ 40Vdc, ICE @ 150 mA (Voltage –
Isolation: 5000 Vrms).
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Optically Isolated Flow Pulse Output:
UCE @ 60Vdc, ICE @ 50 mA (Voltage –
Isolation: 5000 Vrms).
Flow Meter Input Power:
15 to 30 Vdc, 100 mV maximum peak to peak
output noise. Power consumption: +15Vdc (150 mA maximum); +24Vdc (100
mA maximum); Circuit board have built-in polarity reversal protection, 300mA
resettable fuse provide power input protection. 115 or 230 Vac transformer
(optional).
Communication Interface:
RS-232 standard (RS-485 optional).
Communications Parameters (RS-232/RS-485):
Baud rate: ...................... 9600 baud
Stop bit: ...................... 1
Data bits: ...................... 8
Parity: ...................... None
Flow Control: ...................... None
Display:
Local 2x16 characters LCD. In the process mode can be set to display
statically or dynamically (with preset interval time) up to 13 different combinations of the process and diagnostic parameters.
Key Pad:
4 push button key pad.
CE Compliance: EMC Compliance with 89/336/EEC as amended.
Emission Standard: EN 55011:1991, Group 1, Class A
Immunity Standard: EN 55082-1:1992
(* - optional feature)
4.3 Handling and Storage
The smart transmitter has been tested and programmed at the factory. When
the transmitter is received, it should be inspected for damage due to mishandling
during shipment. If damage is evident, report it to the carrier immediately
and have them present when the carton is opened. The carrier is responsible for
any damage during shipment. If you have any problems or questions, consult
the factory or your local representative.
After receiving the unit, handle with care to avoid any unnecessary damage. If
the unit is not scheduled to be installed immediately after delivery, the following
steps should be observed:
A) After inspection, the transmitter should be repacked into its original
packing.
B) Select a clean, dry place to store the meter.
C) Avoid areas of extreme temperatures. The unit should be stored in an area
that falls between -15 °F and +149 °F.
4.4 Mounting
The transmitter enclosure for remote option has two mounting feet for easy wall
mounting. The enclosure should be located within 100 feet from the pipeline
sensor, and ideally should be at eye level for easy viewing and access to the keypad for programming.
High-Temperature Installations:
Install the meter body so the electronics are positioned to the side of or below
the pipe. Insulation may be required around the pipe to maintain a temperature
below 149 °F (65 °C).
4.5. Wiring Connections
The transmitter module fits snugly within the enclosure, but will slide out by
hand without the necessity of a tool for removal.
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CAUTION: Make proper grounding connections before switching on
power. Grounding the flow meter and transmitter modules is one of
the most important procedures of Vortex installation. Proper
grounding ensures correct and accurate flow measurement.
Use dedicated Grounding Clamp on the meter and transmitter body
(see pages 105-107) to make the proper connection to building
protective earth.
WARNING:
Some of the IC devices used in the transmitter are static sensitive and
may be damaged by improper handling. When adjusting or servicing
the transmitter, use of a grounded wrist strap is recommended to
prevent inadvertent damage to the integral solid state circuitry.
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CAUTION: Do not apply power voltage above 30Vdc. Doing so will
cause Vortex meter damage or faulty operation.
Make sure power is OFF when connecting or disconnecting any cables
in the system.
The TB1 – TB4 terminals accept 14 to 24 gauge wires, but 18 gauge shielded
wire (Belden 8760) or 20 gauge shielded wire (Belden 9154) is recommended.
When making wiring connections, cable glands should be fitted and sealed to
prevent moisture entering the enclosure.
4.5.1 Power Supply Connections
The power supply requirements for Vortex flow meter are: 15 to 30 Vdc 100 mV
maximum peak to peak output noise, (unipolar power supply)
Terminal TB1, Pin 1 --------------- DC Power (+)
Terminal TB1, Pin 2 --------------- DC Power (-)
Terminal TB1, Pin 3 --------------- GND, building protective earth
(connect to dedicated GND clamp
inside of the enclosure).
The (+) and (-) power inputs are each protected by a 300mA M (medium timelag) resettable fuse. If a shorting condition or polarity reversal occurs, the fuse
will cut power to the flow transducer circuit. Disconnect the power to the unit,
remove the faulty condition, and reconnect the power. The fuse will reset once
the faulty condition has been removed.
NOTE: For remote transmitter option use shielded twisted pair cable in
order to reduce EMI on sensors signals. Use 24 AWG or larger wire and
do not exceed 100 feet (30 meters). Use supplied cable termination kit
to properly terminate the transmitter end of the signal cable.
The termination kit includes:
1. Molex 3 position Connector Housing (P/N: 50-57-9403) 1 ea.
2. Molex Female Connector Terminals (P/N: 16-02-1114) 3 ea.
Make sure to connect terminal #4 on the meter side to pin #2
(central pin) on the Molex connector (see APPENDIX D on page 104
for more details)
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This linear output signal by default represents 0-100% of the selected process
variable full scale range. User may adjust 4mA and 20 mA settings individually
for each output if different range of the process variable is required (see
Paragraph 5.3.12.4)
Terminal TB3, Pin 1 --------------- (+) Plus 4-20mA Analog Output#1
Terminal TB3, Pin 2 --------------- (-) Minus 4-20mA Analog Output#1
Terminal TB3, Pin 3 --------------- (+) Plus 4-20mA Analog Output#2
Terminal TB3, Pin 4 --------------- (-) Minus 4-20mA Analog Output#2
4.5.3 Programmable optically isolated Output
Signals Connections
Optocoupler #1 - Terminal TB4 (pins 6 and 5):
Terminal TB4 Pin 6 --------------- Plus (+) (passive)
Terminal TB4 Pin 5 --------------- Minus (-) (passive)
Optocoupler #2 - Terminal TB4 (pins 4 and 3):
Terminal TB4 Pin 4 --------------- Plus (+) (passive)
Terminal TB4 Pin 3 --------------- Minus (-) (passive)
WARNING: The 4-20 mA current loop output is self-powered (sourcing
type, non-isolated). Do NOT connect an external voltage source to the
output signals.
4.5.2 Analog 4-20 mA Output Signals Connections
Vortex Flow Meters are equipped with two calibrated 4-20 mA output signals
(which can be assigned to any of four process variables: Volumetric Flow, Mass
Flow, Temperature*, Pressure*).
CAUTION: When connecting the load to the output terminals, do not
exceed the rated values shown in the specifications. Failure to do so
might cause damage to this device. Be sure to check if the wiring and
the polarity of the power supply is correct before turning the power ON.
Wiring error may cause damage or faulty operation.
Use of the Vortex flow meter in a manner other than that specified in this manual
or in writing from Aalborg, may impair the protection provided by the equipment.
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4.5.4 Programmable optically isolated Flow Pulse
Output Signal Connections
Terminal TB4 (pins 2 and 1):
Terminal TB4 Pin 2 --------------- Plus (+) (passive)
Terminal TB4 Pin 1 --------------- Plus (-) (passive)
WARNING: Optically isolated Flow Pulse output require application of
external DC voltage across terminals. Do not exceed maximum allowed
limits for voltage and current provided below:
2 V <
UCE < 60 V
0.2 mA < ICE < 50 mA
WARNING: Optically isolated outputs require application of external DC
voltage across terminals. Do not exceed maximum allowed limits for
voltage and current provided below:
2 V <
UCE < 40 V
0.2 mA <
ICE < 150 mA
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4.5.5 Communication Parameters and Connections
The digital interface operates via RS-232 (optional RS-485) and provides access
to applicable internal data including: flow, temperature*, pressure*, totalizers
and alarm settings, flow calibration settings, process fluid parameters and engineering units selection.
Communication Settings for RS-232/RS-485 communication interface:
Baud rate: ………………… 9600 baud
Stop bit: ……………………1
Data bits: …………………. 8
Parity: ………………… None
Flow Control: ………………… None
RS-232 communication interface connection:
Crossover connection has to be established:
Terminal TB2 Pin 1 (Tx-) ------------ RS-232 RX (pin 2 on the DB9 connector)
Terminal TB2 Pin 2 (Rx+) ------------ RS-232 TX (pin 3 on the DB9 connector)
Terminal TB2 Pin 3 ------------- RS-232 SIGNAL GND (pin 5 on the DB9
connector)
RS-485 communication interface connection:
The RS485 converter/adapter must be configured for: multidrop, 2 wire, half
duplex mode. The transmitter circuit must be enabled by TD or RTS (depending on
which is available on the converter/adapter). Settings for the receiver circuit
should follow the selection made for the transmitter circuit in order to eliminate
echo.
Terminal TB2 Pin 1 (Tx-) --------------- RS-485 T(-) or R(-)
Terminal TB2 Pin 2 (Rx+) --------------- RS-485 T(+) or R(+)
Terminal TB2 Pin 3 --------------- RS-485 GND (if available)
5. LCD KEYPAD OPERATION:
DATA ENTRY AND CONFIGURATION
5.1 Display Indications
Initially, after the power is first turned on, the Banner Screen is shown for 1 second, then flow meter model number is shown in the first line of the display and
the revisions for EEPROM table and firmware in the second line. Subsequently
the actual process information is displayed.
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Figure 5.1: Vortex meter first Banner Screen
Figure 5.2: Vortex meter second Banner Screen
Figure 5.3: Vortex meter initial PI Screen
Based on flow meter configuration (with or without Temperature/Pressure
option), different parameters may be displayed in the Process Information (PI)
screen by pressing the Up or Dn pushbuttons.
Process Information screens can be configured to be static or dynamic (see
Paragraph 5.3.11 “Display Menu”). Using Screen Mask settings user can enable
(unmask) or disable (mask) up to 13 different process variable combinations (see
Figure 5.4). In the static mode pressing Up button, pages through the PI screens
in the forward direction, pressing Dn button, pages through the PI screens in the
reverse direction. When the last PI screen is reached, the firmware “wraps
around” and scrolls to the initial PI screen once again.
In the dynamic mode firmware initiates automatic screen sequencing with user
adjustable screen Cycle Time (see Paragraph 5.3.11.2 “Display Menu”). When the
last PI screen is reached, the firmware “wraps around” and scrolls to the initial PI
screen once again.
AALBORG VORTEX
SMART FLOW METER
VXW10L-44AB-L2D4
Fw: A001 Tbl: A001
325.3 litr/min
T1: 60639.3 litr
NOTE: Actual content of the LCD screen may vary depending on the
model.
17
NOTE: Actual content of the LCD screen may vary depending on the
model.
NOTE: For devices without Temperature and Pressure measurement
hardware, the screens with T/P process info will display static data
entered during meter configuration procedure via Process Fluid menu
(see Paragraph 5.3.9).
Process Information Mode Screens
18
Figure 5.4: Vortex meter Process Information Screens
Vol Flow
Total#1
Vol Flow
Total#2
Mass Flow
Total#1
Mass Flow
Total#2
Total #1
Total #2
Vol Flow
Temp Press
Mass Flow
Temp Press
Vol Flow
Mass Flow
Fa Stat.
Ta Stat. Pa Stat.
Vol Flow
RMS1 RMS2
Mass Flow
Density
Flow Velocity
Date/Time
F:PC F:PWM
F: WD F:FFT
19
5.2 Menu Sequence
The listing below gives a general overview of the standard top-level display menu
sequence when running firmware version A001. The ESC pushbutton is used to
toggle between the process mode (PI screens) and the Setup menus.
The listing in Section 5.2 shows the standard display menu sequence and submenus using the UP button to move through the menu items. The first message
displayed the first time the ESC button is pressed after the meter is powered up is
“Prog. Protection ON”. Thereafter, pressing the ESC button while the flow meter
is in monitoring mode (PI screens) will display the parameter that was last exited.
Program Protection may be turned “off” by pressing the ENT pushbutton when
the Program Protection menu is displayed. The firmware will prompt with
“Change Prog Prot”. Pressing UP or DN button will toggle current protection status. If password is set to any value more than zero, the firmware will prompt with
“Enter Prot Code”. User has to enter up to 3 digits program protection code, in
order to be able to access password protected menus. Once correct password is
entered, program protection is turned off until unit is powered up again.
When the last menu item is reached, the firmware “wraps around” and scrolls to
the first item on the menu once again (see Figure 5.5). The menu items in the first
column are upper-level configuration mode functions. Submenu selections are
shown on the Figure 5.6). The allowable selections of sub-menu items which are
selected by tabular means are shown in detail in Section 5.3.
20
Top Level 1 Setup Menus
Prog. Protection
on/off
Prog. Prot. Code
old/new
Submenu L1
Flow Meter Info
Submenu
Measuring Units
Submenu L1
Alarm Menu
Submenu L1
Totalizer Menu
Submenu L1
Output Menu
Submenu L1
Calibration Menu
Submenu L1
Date/Time Adjust
Submenu L1
Fluid Menu
Submenu L1
Diagnostic Menu
Submenu L1
Display Menu
Submenu L1
Data Log Menu
Figure 5.5 Upper level 1 Setup Menu structure.
21
Figure 5.6 Setup Menu structure
SETUP MENUS
Loop
Disabled
Sub menu L1
Data Log Menu
Data Log Mode:
Static
Sub menu L1
Display Menu
Display Mode:
3600
DataLog Config:
Log #of Sampls:
2 sec.
Sub menu
Screen Mask
Screen Time:
60 sec.
Vol Flo w
Log Interval:
Proces Vari able:
Unconditional
Flow Alarm Hi
Start Conditions:
DLI:2503 Ov:0
Stop Conditions:
Data Log Status
37.5 C
CPU Temp:
DAC Output:
#1:538 #2:1521
Sub menu L1
Sub menu L2
Sub menu L2
Diagnostic Menu
Fluid Menu
Flowing Fluid
Sub menu L1
Sub menu L2
Sub menu L1
Date/TimeAdjust
05/25/2010 09:40
Current Date/Time
Sub menu L1
Sub menu L2
CalibrationMenu
PWM DSPMenu
Setup Mode Screens
Output Menu
Sub menu L1
Sub menu L2
4-20mA Output1
Totalizer #1
Sub menu L1
Sub menu L2
Totalizer Menu
Flow Alarm
Alarm Menu
Sub menu L1
Sub menu L2
Menu
Password
litr/min
Sub menu L1
Vol Flo w Units
Measuring Units
Raw Pulses Cnt
API 2540.
Sub menu L2
Sub menu L2
Goyal-Dorais.
16:24:11
Set Date:
Set Time:
05/25/2010
0.750 inch
Meter Size
Sub menu L2
FFT DSPMenu
Sub menu L2
Sub menu L2
Optical Outputs
4-20mA Output2
Totalizer #2
Pulse Output
Sub menu L2
Sub menu L2
Sub menu L2
Sub menu L2
Temper. Alarm
Pressure Alarm
deg C
kg/min
Temper. Units
Mass Flow Units
560 T:2000 ms
Events Log File
Sys. Events Reg
280.2 280.0 Hz
280.2 280.0 Hz
PulseFrequency
PWMFrequency:
Other Gases.
Sub menu L2
Sub menu L2
Nat Gas AGA8
1001.170
Meter Factor
2800 Litr/min
Meter FS Range
11
RS-485 Address
PSI
g/cm^3
Density Units
Pressure Units
FFT Output:
FFT Aver age:
Sensors RMS:
280.6 280.1 Hz
280.5Hz A: 325
AWDFrequency:
21.0 C
STD Temp:
Sub menu L2
Cust Flow. Cond
5.0 %FS
50.00 Hz
Low Freq Cutoff
Low Flow Cutoff
Actual
Sub menu L2
UD Flow Units
Flow Units Cond
S1:425 S2:412
280.2Hz D:2223
21.0 C
14.70 PSIA
Normal Temp:
STD Pressure:
2.158
1009.00 Hz
Vortex Coeff.
Hi Freq Cutoff
T/P ADC Out:
T:1245 P:0547
S1:127 S2: 120
Sensor Attenuat
14.70 PSIA
Normal P ress:
25.6 Hours
Not Assigned
User Tag Name:
Calib. Pilot Time
08/21/2011
Calib. Date Due
08/21/2010
Calibration Date
Model Number:
VXW-10L-4S4A
248561-1
Serial Number:
A002
Status
Password
Scr eens
Proc ess M ode
Total#1
Vol Flo w
1000.0 L/min
Sub menu L1
Full Scal e Flow
Flow Meter Info
Total#2
Total#1
Vol Flo w
Mass Flow
Water
0.750 inch
Meter Size
Floing Fluid:
Total#2
Total #1
Total #2
Mass Flow
Inst alled
Comm. Interface
RS-485 ADD:11
Vol Flo w
Temp Press
4-20mA Output1
Vol Flo w
Mass Flow
Mass Flow
Temp Press
Vol Flo w
T/P Sensors
Disabled
Temperature
Optical Out #1
4-20mA Output2
Fa Stat.
Vol Flo w
RMS1 RMS2
Ta Stat. Pa Stat.
A001
Disabled
Optical Out #2
Density
Mass Flow
Firmware Ver:
EEPROM Ver:
Date/Time
F: WD F:FFT
Flow Velocity
F:PC F:PWM
22
5.3 Parameter Entry
There are two methods of data entry: • Direct numerical number entry.
• Tabular Input from a table menu.
If menu with direct numerical entry is selected use Up button to increment digit
value from 0-9. Use Dn button to move cursor to another digit position. When
desired value is entered use ENT button to accept (save in the EEPROM) new
value.
If menu with tabular entry is selected, the available menu options can be set with
the Up and Dn buttons and are accepted by pressing ENT button.
5.3.1 Submenu Program protection
After power has been turned on, programming parameters may only be changed
by turning program protection “OFF”. There are two ways to turn off the program protection:
1. If program protection code (PP-code) is set to “0” (factory default), the
program protection is turned off by pressing ENTER key.
2. If a PP-code (1 to 255) other than “0” has been entered, this code must be
entered in order to turn the program protection “OFF”.
The PP-code can be changed after the program protection has been turned off.
In order to protect device configuration parameters when changing the PP-code
the old PP-code must be entered after ENTER has been pressed.
NOTE: During data entry the input values are checked for
acceptability. If data is not acceptable, it is rejected and a message
is generated indicating that the new data has not been accepted.
Prog. Protection code
Old PP-code ?
0
23
Press ENTER key after entry of old PP-code.
Now enter the new PP-code (0-255) and press ENTER key. The new PP-code is
now valid to turn off the program protection. If the PP-code is forgotten, it can
be restored only via digital communication interface.
5.3.2 Submenu Flow Meter Info
This submenu contains information about the meter main configuration parameters. These items are informational only, not password protected and may not be
changed (read only).
New PP-code ?
0
24
Figure 5.7 Submenu L1 Measuring Units structure.
5.3.3 Submenu Measuring Units
Ent
Dn Up
Cursor
1.000
Numerical Entry
UD Vol U. Factor
Tabular Entry
Ent
Dn Up
Alarm Menu
Sub menu L1
Sub menu L1
Measuring Units
bbl/sec, bbl/min, bbl/hr, bbl/day, Vol User
f^3/sec, f^3/min, f^3/hr, f^3/day, gal/sec, gal/min, gal/hr, gal/day,
Igal/sec, Igal/min, Igal/hr, Igal/day, MilL/sec, MilL/min, MilL/hr, MilL/day,
%FS, litr/sec, litr/min, litr/hr, litr/day, m^3/sec, m^3/min, m^3/hr, m^3/day,
Ent
Ent
litr/min
Vol Flow Units
Lton/day, Mass User
g/cm^3, kg/m^3, g/litr, kg/litr, lb/ft^3, lb/gal, lb/in^3
psi, bar, mbar, inHg, mmHg, kPa, MPa, atm, gcm2, kgc2, torr
Ston/sec, Ston/min, Ston/hr, Ston/day, Lton/sec, Lton/min, Lton/hr,
lb/sec, lb/min, lb/hr, lb/day, Mton/sec, Mton/min, Mton/hr, Mton/day,
gram/sec, gram/min, gram/hr, gram/day, kg/sec, kg/min, kg/hr, kg/day,
Ent
Mass Flow Units
deg F, deg C, Kelvin, Rankine
Ent
kg/min
deg C
Temper. Units
Ent
Ent
PSI
Pressure Units
g/cm^3
Density Units
UD VU Time Base
Ent
Tabular Entry
Dn Up
Ent
Sub menu L2
UD Flow Units
Numerical Entry
Tabular Entry
60 Sec
UD Mass U Factor
Actual
Normal
Standard
Ent
Actual
Flow Units Cond
Tabular Entry
1.000
60 Sec
UD MU Time Base
Sub menu L1
Flow Meter Info
Esc
to L1 Menu
Press Esc to return
NOTE: Program the Measuring Units first because later menus may be
based on the units selected.
25
Use the Measuring Units Menu to configure the flow meter with the desired units
of measurement. These are global settings and determine what appears on all
process information screens and data log records. Units should be selected to
meet your particular metering needs.
The instantaneous flow rate may be simultaneously displayed in Volumetric and
Mass engineering units. In addition to conventional flow units user defined flow
engineering units may be configured for Volumetric and Mass flow units. Before
using Volumetric User defined flow unit make sure proper conversion factor of the
new unit with respect to one liter is set (the default entry is 1.00 Liter). Before
using Mass User defined flow unit make sure proper conversion factor of the new
unit with respect to one gram is set (the default entry is 1.00 gram) Also proper
time base values for both User Defined Units have to be set. The following selections are available: 1 second, 60 seconds (1 minute), 3600 seconds (1 Hour),
86400 seconds (1 Day). The default entry is 60 seconds.
The Volumetric flow rate for Gases may be shown with following units conditions:
Standard, Normal, and Actual. The temperature and pressure for Standard and
Normal conditions can be programmed in the Flowing Fluid menu (see Paragraph
5.3.9). By default Standard conditions are: 70 °F and 14.7 PSIA, Normal conditions are 0 °C and 101.3 KPa.
For flow meters with T/P hardware installed the actual process temperature and
pressure derived from corresponding sensors. For flow meters without T/P hardware the actual process temperature and pressure should be preset in the Flowing
Fluid menu (see Paragraph 5.3.9).
NOTE: Your flow meter is pre-programmed at the factory for your
application’s process fluid and T/P conditions and does not require any
reprogramming unless your process fluid or T/P conditions are
changed.
NOTE: If Gas is selected as flowing fluid, when Standard Volumetric
units are selected the prefix S will precede engineering units name on
the PI screens (for example: Slitr/min). When Normal Volumetric units
are selected the prefix N will precede engineering units name on the PI
screens (for example: Nlitr/min). For Actual Volumetric units there will
be no prefix in front of engineering unit name (for example: litr/min).
Flow Units Conditions settings only applicable for Volumetric Flow
units. For Liquids the Flow Units conditions are always Actual.
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