Tek-Vor 1300C is primarily used to measure volumetric flow rate of gas, steam and
liquids. It is suitable for SIP and CIP process in food, beverage, and pharmaceutical
industries. It is also used in water and wastewater industry.
The volumetric flow rate, temperature, pressure and density of any liquid, gas or steam
are measured as an option. From these parameters, Tek-Vor 1300C can calculate the
mass flow rate.
1.2 Certification
General purpose IP67/NEMA 4X
1.3 Safety Instructions from the Manufacturer
1.3.1 Disclaimer
The manufacturer will not be held accountable for any damage that happens by using
its product, including, but not limited to direct, indirect, or incidental and
consequential damages.
Any product purchased from the manufacturer is warranted in accordance with the
relevant product documentation and our Terms and Conditions of Sale.
The manufacturer has the right to modify the content of this document, including the
disclaimer, at any time for any reason without prior notice, and will not be answerable
in any way for the possible consequence of such changes.
1.3.2 Product Liability and Warranty
The operator shall bear authority for the suitability of the device for the specific
application. The manufacturer accepts no liability for the consequences of misuse by
the operator. Wrong installation or operation of the devices (systems) will cause the
warranty to be void. The respective Terms and Conditions of Sale, which forms the
basis for the sales contract shall also apply.
1.3.3 Information Concerning the Documentation
To prevent any injury to the operator or damage to the device it is essential to read
the information in this document and the applicable national standard safety
instructions. This operating manual contain all the information that is required in
various stages, such as product identification, incoming acceptance and storage,
mounting, connection, operation and commissioning, troubleshooting, maintenance,
and disposal.
You must read these instructions carefully prior to installing and commissioning the
device. These instructions are an important part of the product and must be kept for
future reference. Only by observing these instructions, optimum protection of both
personnel and the environment, as well as safe and fault-free operation of the device
can be ensured.
For additional information that are not discussed in this manual, contact the
manufacturer
Warnings and Symbols Used
The following safety symbol marks are used in this operation manual and on the
instrument.
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury. It may also be used to alert against unsafe practices.
NOTE
Indicates that operating the hardware or software in this manner may damage it
or lead to system failure.
Unpack and check the contents for damages or signs of rough handling. Report
damage to the manufacturer immediately. Check the contents against the packing
list provided.
1.5.2 Transportation
• Avoid impact shocks to the device and prevent it from getting wet during
transportation.
• Verify local safety regulations, directives, and company procedures with respect
to hoisting, rigging, and transportation of heavy equipment.
• Transport the product to the installation site using the original manufacturer’s
If this product is to be stored for a long period of time before installation, take the
following precautions:
•Store your product in the manufacturer’s original packing used for shipping.
•Storage location should conform to the following requirements:
oFree from rain and water
oFree from vibration and impact shock
oAt room temperature with minimal temperature and humidity
variation
•Before storing a used flowmeter remove any fluid from the flowmeter line
completely. Properties of the instrument can change when stored outdoors.
1.5.4 Nameplate
The nameplate lists the order number and other important information, such as design
details and technical data
Note
Check the device nameplate to ensure that the device is delivered according to
your order. Check for the correct supply voltage printed on the nameplate.
This section covers the reference and specification data, as well as ordering
information.
2.1 Introduction
Tek-Vor 1300C Vortex Flowmeter (also called a Vortex Shedding Flowmeter) is a
versatile instrument that calculates the mass flow, volumetric flow rate, temperature,
and pressure and density of any liquid, gas, or steam through a pipeline.
2.2 Measuring Principle
This flowmeter operates on the principle of Karman Vortex Street, any medium passing
through the pipeline flows around the bluff body and sheds a series of alternating
vortices on each side of the body. This phenomenon is referred to as Vortex Shedding.
These vortices shed downstream of the bluff body and dissipate as they flow further.
This pattern of vortices is called a Karman Vortex Street (also called a Von Karman
Vortex Street).
A Vortex Flowmeter primarily consists of a bluff body, a sensor assembly, and a
transmitter. A bluff body or a shedder is nothing but a non-streamlined object or a
barrier placed perpendicular to the axis of the pipeline, around which the medium
flows.
Calculation of volumetric flow rate
The frequency of the vortices, i.e. the number of vortices shed per second, is directly
proportionate to the velocity of the medium. This Vortex Shedding Frequency is used
to calculate the mass flow as well as the volume flow. The sensor assembly records the
pressure and velocity oscillations generated on each side of the bluff body by the
vortices and generate a digital linear output signal. The Vortex Shedding Frequency is
calculated using the following formula:
×
=
Where,
f = Frequency of Vortex Shedding
St = Strouhal Number
V = Flow Velocity
d = Width of the Bluff Body
The Vortex Shedding frequency is directly proportional to the velocity of any given
bluff body diameter.
Pressure: 0.75% FS
Repeatability 0.3% of Reading
Output4 to 20 mA and Pulse or 4 to 20 mA with HART or RS485
Maximum Process Pressure Limit150# ANSI Flange, 300# ANSI Flange
Process Temperature Range-40 °F to 302 °F (-40 °C to 150 °C) or -40 °F to 482 °F
(-40 °C to 250 °C) or -40 °F to 662 °F (-40 °C to 350 °C)
Ambient Humidity5 to 100% RH
Process ConnectionWafer, 150# ANSI Flange, 300# ANSI Flange
Electrical Connection½" NPT
Material304 SS, 316L SS
This section covers instructions on installation and commissioning. Installation of the
device must be carried out by trained, qualified specialists authorized to perform such
works.
CAUTION
• When removing the instrument from hazardous processes, avoid direct
contact with the fluid and the meter
• All installation must comply with local installation requirements and local
electrical code
3.1 General Notes on Installation
• Ambient Temperature
Please avoid installing the flowmeter at a location where temperature could
dramatically change. If the meter is under heavy heat radiation, please implement
effective heat insulation and venting method.
• Atmosphere
Please do not install the flowmeter at a location where the atmosphere contains a
high level of corrosive substance. If the meter cannot be installed at a better location,
please make sure there is enough venting.
• Vibration
The flowmeter should not be installed at a location where it could have strong
vibration. If the mounting pipeline could have heavy vibration, the pipeline should be
held steady by some support racks.
CAUTION
• All screws and bolts should be tightened
• Make sure there is no leakage point on the connection
• The process pressure should not be higher than the flowmeter’s rated pressure
• Once the meter is under pressure, please do not screw the bolts and screws
For person and equipment safety, please observe below provision:
• Before installation, please read this manual properly, check the safety requirements
for flowmeter, relevant equipment and environment.
• Install and maintain flowmeter by person who has the knowledge of flowmeter.
• Install flowmeter sensor and its pipe correctly, make sure the seal and safety, liquid
pressure shall be no more than the maximum working pressure on nameplate.
• Prevent electric shock accident.
• Lifting equipment for flowmeter should confirm to safety provision.
3.3 Installation Condition
NOTE
When the upstream pipeline is a Tdownstream of the meter is shut, fluid will flow toward pipe B, however the meter
may still show a reading, as it may be detecting a pulsating pressure. In this case,
please close the upstream valve V1.
This section covers the all electrical connection requirement. Electrical connection of
the device must be carried out by trained, qualified specialists authorized to perform
such work by the installation site.
WARNING
• Connect all electrical cables when the power is switched off. If the device
does not have switch-off elements, then, overcurrent protection devices,
lightning protection and/or energy isolating devices must be provided by the
customer.
• The device must be grounded to a spot in accordance with regulations in
order to protect personnel against electric shocks.
NOTE
• When using the measuring device in hazardous areas, installation must
comply with the corresponding national standards and regulations and the
Safety Instructions or Installation or Control Drawings.
The Tek-Vor 1300C has two different terminal boards; a 5-terminal board for standard
models and a 12-terminal board for multi-variable models.
Power supply
RS485 communication
Current
Pressure Sensor
On the above boards, V+ and V- are for power. is the pulse output terminal. A, B
are “+” and “-” terminals for RS485 Modbus communication. I+ and I- are “+” and “–“
for 3-wire or 4-wire 4 to 20 mA. RT1, RT2, RT3 are for separate RTD. P+, P- are for
pressure transmitters. The Tek- Vor 1300C multi–variable version has a built in RTD and
pressure sensor, so there is no requirement to wire for temperature or pressure
compensation.
A 3-wire pulse output requires a power source of 13.5 to 42VDC. VFM uses a current
pulse output with 50% duty ratio. If the pulse-receiving instrument requires a voltage
pulse, add a resistor between “” and “V-”; the resistance should be within 500
ohms to 1000 ohms, and the power consumption should be no less than 0.5W.
4.2.2 Wiring for a 2-Wire HART with 4 to 20mA
When there is no temperature and pressure compensation and the power source is
24VDC, the maximum load for 4 to 20mA analog is 500 ohms. When there is
temperature and pressure compensation and the power source is 24VDC, the
maximum load for 4 to 20mA analog is 400 ohms. When using a HART communicator,
add a 250 ohms load resistor.
A 3-wire pulse output requires a power source of 13.5 to 42VDC. VFM uses a current
pulse output with 50% duty ratio. If the pulse receiving instrument requires a voltage
pulse, add a resistor between ““and “V-”; the resistance should be within 500Ω to
1000Ω, and the power consumption should be no less than 0.5W.
This section covers operation techniques and guidelines.
5.1 Display
The Tek-Vor 1300C Vortex Flowmeter provides local settings and a display panel. It can
display several variables on this multifunctional LCD display. It has 3 buttons.
5.1.1 Introduction to the Multi-Functional LCD Display
The Tek-Vor 1300C Vortex Flowmeter has a display to indicate “Frequency”, “Flow
Rate”, and “Total flow”. The Tek-Vor 1300C Multi-variable version or a standard Tek-
Vor 1300C working with RTD and pressure transmitters can also indicate other
variables such as temperature/pressure/density/mass flow”.
The LCD display has 2 areas to display the content - the upper row and the lower row.
The upper row displays the flow rate/mass flow/standard flow rate. Immediately
below the upper row is displayed the unit of the variables in the upper row.
The lower row display indicates other variables, such as frequency/ pressure/
temperature/ density/ total flow/ velocity. Immediately below the lower row is
displayed the unit of the variables in lower row.
The Tek-Vor 1300C Multi-variable version and the Standard version with temperature
and pressure compensation, can calculate and display the mass flow of both saturated
steam and superheated steam.
The Tek-Vor 1300C multi-variable version and the standard version with temperature
Subject
Variable
Unit
Circular Display
Code
TOTAL
Total Flow
m/s (ft/sec)
01
TEMP
Temperature
OF(O
C)
02
PRES
Pressure
MPa or kPa
03
FREQ
Frequency
Hz
04
DENS
Density
kg/m3
05
and pressure compensation can display variables such as temperature/ pressure/
density. Use the “Switch” button to switch to the next variable and it will display for 30
seconds.
Below is a sample of the temperature being displayed. The lower row can also
consistently display a variable through the settings. The default variable displayed on
the lower row is total flow. You can also set the lower row to display several variables
in circular turn.
Tek-Vor 1300C vortex flowmeter has three buttons on the top of the display, which
are used as L-R button, used as U-D button, used as Enter button.
The “U-D” button is used to switch the displaying content up and down, the “L-R”
button can be used for the left and right digits of total flow. The “Enter” button”
displays the entire digits of total flow directly.
5.1.4 Total Flow Display
The Tek-Vor 1300C can display 9 digits to the left of decimal point and 3 digits to the
right of it. When there is more than 6 digits, the total flow reading will be displayed
twice; first it will display digits on right, and then second the digits on left. You can use
the “L-R” button to switch between the right and left digits. The left digits will be
displayed with “x1000”
To check the right digits now, press the “L-R button”, the display will be
According to the above images, the total flow is 569864.581 kg.
The Tek-Vor 1300C Vortex Flowmeter have three different Modes:
• Working Mode
• Setting Mode
• Calibration Mode
When under the Setting mode you can set the flowmeter while the flowmeter is still
processing, so setting will not have effect on the measuring parameters. The
calibration of the flowmeter has been finished in manufacturer’s laboratory before
delivery, including temperature and pressure calibration along with the setting of the
high-limit and the low-limit of 4 to 20mA stimulation output.
5.2 Parameter Setting
The Tek-Vor 1300C Vortex Flowmeter has Digit and Code Setting functions. Use the
Code Setting function to set parameters such as fluid type, compensation type, and
output signal. Use the Digit Setting function to set parameters related to a number such
as pipe size, flow range factor.
NOTE
Tek-Vor 1300C Vortex Flowmeters have been set according to requirement before
delivery. Please do not change the setting unless it is necessary and under correct
instruction
5.2.1 Code Setting
To enter the Code Setting in working status, press the “Enter” button, and the “U-D”
button at the same time.
When in the code setting function, the upper row will display the reference number
for the code setting, and the lower row will display the contents of this parameter.
The digit that is flashing is the digit under the setting. In the diagram below, this is
shown as C01=02, which means the fluid type is liquid.
When in the code setting function, the user can now use “L-R” to select which digits
on the display are to be set, and “R-D” to switch the digit to between 0 and 9. When
“Enter” is pressed, it will set the lower row. Press “Enter” again to check if the setting
is available. If the setting is available, the setting made will be cancelled and the display
will not flash. If this happens, press “L-R” or “U-D” to set it again. When the display is
not flashing, press “Enter” to save and go to the next setting. If the user wants to quit
the code setting function, hold down “Enter” and press “U-D” at the same time.
5.2.2 Digit Setting
To enter the Digit Setting function in working status, hold down “Enter” and press “LR” at the same time.
When in the Digit Setting function, the upper row will display the reference number
of the digital setting and the lower row will display the contents of this parameter. In
the diagram below, the digit that is flashing is the digit under the setting. This means
D001=1.60000; the maximum pressure is 1.6 (unit according to other settings).
When in the Digit Setting function, the user can use “L-R” to select which digit on the
Code Setting
Address
Item
Code
Description of Code
01
Fluid
01
Gas
02
Liquid
02
Density
00
Volume Flow Display, No
Density Compensation
01
Density Preset
02
Pressure Compensation (for
Larger than 20MPa
03
Temperature Compensation
(for Saturated Steam)
04
Temperature and Pressure
Superheated Steam)
05
ρ=A+BP (Pressure
Compensation)
06
ρ=A+BT (Temperature
Compensation)
display panel are to be set and use “R-D” to switch the digit to between 0 and 9. The
first press of “Enter” sets the lower row. Press “Enter” again to check if the setting is
available. If the setting is available, the setting made will be cancelled and the display
will not flash. If this happens, press “L-R” or “U-D” to set it again. When the display is
not flashing, press “Enter” to save and go to the next setting.
If want to quit the digital setting function, again hold down “Enter” and press “U-D” at
the same time.
5.2.3 Setting Address
• Code Setting Address
NOTE
If the unit of flow rate is changed or the measurement is changed from the flow
rate to mass flow, users can reset the total flow to 0 or record the current total
flow:
Total flow= (number of times over total flow) * (maximum display of total flow) +
(current total flow reading)
Compensation to get for
Normal Condition Flow Rate of
Gas
09 AGA-8 to Calculate
Compressibility Factor
05 Output 01 Pulse
02 4 to 20mA or HART at 4 to
20mA
03 200-1000HZ Frequency
Output, Set Output in C06
04 Frequency Output for Total
Flow, Set Factor in D013
06 200-1000Hz Output
Parameter
00 Flow Rate
01 Temperature
02 Pressure
07 Damping 01 to
1 to 99 Reconds
99
08 Instrument Number 00 to
For Modbus
99
00 to
For HART Communication
15
09 Baud Rate 01 1200 No Parity 1 Stop Bit
02 1200 Even Parity 1 Stop Bit
03 2400 No Parity 1 Stop Bit
04 2400 Even Parity 1 Stop Bit
05 4800 No Parity 1 Stop Bit
06 4800 Even Parity 1 Stop Bit
07 9600 No Parity 1 Stop Bit
08 9600 Even Parity 1 Stop Bit
09 19200 No Parity 1 Stop Bit
10 19200 Even Parity 1 Stop Bit
11 1200 Odd Parity 1 Stop Bit
12 2400 Odd Parity 1 Stop Bit
13 4800 Odd Parity 1 Stop Bit
14 9600 Odd Parity 1 Stop Bit
15 19200 Odd Parity 1 Stop Bit
16 38400 No Parity 1 Stop Bit
17 38400 Even Parity 1 Stop Bit
18 38400 Odd Parity 1 Stop Bit
19 57600 No Parity 1 Stop Bit
20 57600 Even Parity 1 Stop Bit
21 57600 Odd Parity 1 Stop Bit
22 115200 No Parity 1 Stop Bit
Maximum frequency output=10KHz. The pulse factor for total flow should be set
properly according to the current total flow
5.2.4 Example of Setting
For Tek-Vor 1300C Vortex Flowmeter, measure gas in a 2” (DN50) pipe;
K factor= 7.802P/L, density pre-set, mass flow display unit is kg/h. 4 to 20mA output
with a flow range of 0 to 4000kg/hr.
Code Setting Address Code Description
01 01 Gas
02 01 Density Preset
05 02 4 to 20mA Analog
Output
Digit Setting 005 2.0000 Density=2
008
7.802
K Factor=7.802 P/L
009 4000 Flow Rate of 20mA
010 0 Flow Rate of 4mA
015 50 Pipe Size=50mm
Select the code setting, set C47=01, confirm and then enter the password setting
interface:
To set a new password, enter the correct password twice; the password will only
become active if the both entries are correct; otherwise users have to enter the
password again. If the power is cut off during a password setting process, the
password will revert to 2000 as default. When a password becomes active, users will
have to enter the correct password before the flowmeter can be set. If the user enters
3 times consecutively, the display will revert to the normal display.
5.3 Communication using RS485 MODBUS
• Interface Regulation
1. The communication interface should be RS485, the range of Baud rate should be
1200 to 115200
2. The wiring terminal for communication is “A” and “B”. Refer to the Electrical
Installation Section for Wiring Terminal information
3. The communication should comply with MODBUS-RTU statute
The combination of a communication signal: Address code - function code – date
segment – CRC calibration code. The distance between two characters should not be
longer than one character, or it will be considered the beginning of a new message or
the end of an old message. The message is combined with hexadecimal arrays.
The displayable date including flow rate, frequency, pressure, temperature, density
and total flow, if the meter does not have density compensation, then the reading of
pressure and temperature will both be 0. Using function code 03 according to the
address above and shifting can read the date of the parameters in above chart.
The chart above indicates the register address, usage of the register, restriction of
modification, read/write nature and date type. The registers above are all holding
registers; the supporting function codes are 03,04,06, and 16.
• Command
Function codes 03 and 04 are the codes supported for reading the registers. Function
code 06 is for writing one register. Function code 16 is for writing multiple registers.
Function code 06 is only supported for writing a short date. Function code 16 is
supported for writing both a short date and a float date.
a. Function Code 03 – Read Register
NOTE
To read a float date, both the quantity of the register address and its value have to
be even, or response will be “error:
01: Register address lower
00: Quantity of register higher
00: Quantity of register higher
02: Quantity of register lower
02: Quantity of register lower
04: Quantity of values
CRCH: CRC parity code higher
86H: Value 1
CRCL: CRC Parity code lower
00: Value 2
00: Value 3
48H: Value 4
CRCH: CRC parity code higher
CRCL: CRC Parity code lower
c. Function Code 16 – Write Multiple Registers
NOTE
Function code 16 is supported to write both a short date and a float date. However,
for a float date, the first register address and the quantity of the registers must both
be even, or writing will not be allowed
phase flow according to
the pressure and
temperature of the
fluid.
with another
transmitter of same
flowmeter
solid two-phase flow,
need to install a filter
at upstream of the
flowmeter. If the fluid
is liquid-gas two
phase flow, need to
install a getter at
upstream of the
transmitter
46
Page 48
Technology Solutions
Instruction Manual
Tek-Vor 1300C
Error
Reason
Troubleshooting
Repair
A Big Difference
and the process flow rate
Wrong Estimated Flow
Meter
Use another flowmeter
flow rate
Setting incorrect
Check the settings of
rate
Set the meter
Between the
Flow Reading and
the Process Flow
Rate
There is big difference
between the flow reading
Rate Before use of the
Check the density
compensation devices
and the setting
to confirm the actual
Fix density
compensation
meter K factor, upper
and lower limit of flow
correctly
NOTE
Select the Code Setting, set C49=12. Press the “U-D” button to check the current
energy of the vortex flow signal and vibration signal. E1 is the energy of the vortex
flow signal; set the energy threshold value lower than the displayed value. E.1 is
the energy of vibration; set the energy threshold value lower than the displayed
value. Set above value in D017 (energy threshold of the vortex flow signal) and
D018 (energy threshold of vibration), then set C49 back to 00