SGM LEKTRA FLOWMETER User manual

FLOWMETER
ultrasonic ow transmitter
technical documentation EN Rev. of 19/10/2021

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FLOWMETER - contents
CONTENTS
page 3
page 4
page 5
page 6
page 7
page 9
page 11
page 14
page 36
1-WARRANTY
2-PRODUCT
3-PERFORMANCE SPECIFICATIONS
4-DIMENSIONS
5-INSTALLATION
6-ELECTRICAL CONNECTIONS
7-LOCAL OPERATOR INTERFACE (LOI)-VL601
8-SETUP
10-FACTORY TEST AND QUALITY CERTIFICATE

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FLOWMETER - warranty
Products supplied by SGM LEKTRA are guaranteed for a period of 12 (twelve) months from delivery date according to the
conditions specified in our sale conditions document.
SGM LEKTRA can choose to repair or replace the Product.
If the Product is repaired it will maintain the original term of guarantee, whereas if the Product is replaced it will have 12
(twelve) months of guarantee.
The warranty will be null if the Client modifies, repair or uses the Products for other purposes than the normal conditions
foreseen by instructions or Contract.
In no circumstances shall SGM LEKTRA be liable for direct, indirect or consequential or other loss or damage whether
caused by negligence on the part of the company or its employees or otherwise howsoever arising out of defective goods
1-WARRANTY

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FLOWMETER0F4DS
24Vdc 20÷30Vdc
FR0111600193
2
3
1Mod.
P.S.
S.N.
FLOWMETER - features
2- PRODUCT
1. Anticondensation lter
2. M20 skintop
3. VL601 (opt.)
4. Sensor
2.1 IDENTIFICATION
Each meter has an adhesive identication plate on which are the meter main data.
The following picture describes the information and data on the identication plate.
1
1
2
3
4
1. Product code 3. Serial number2. Power supply

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3-FEATURES
FLOWMETER - features
Housing/sensor material
PC or Al / PP or PVDF wetted part
Mechanical installation
2” GAS M (PP ange DN80 opt.)
Protection degree
IP67/IP68 (Sensor)
Electrical connection
Internal push connectors
Working temperature
-20 ÷ +60°C
Pressure
from 0,5 to 1,5 bar (absolute)
Power supply
12Vdc / 24Vdc
Power consumption
1,5W (4-wires)
Analog output
4...20mA, max 750ohm
Relays output
n°2 3A 230Vac (n.o.)
Digital communication
MUDBUS RTU
Max measure range
max 0.25 ÷ 5m
In case of non perfectly reecting surfaces, the maximum distance value will be reduced
Blind distance
0,25m
Temperature compensation
digital from -30 to 80°C
Accuracy
±0,2% (of the measured distance) not better than ±3mm.
Resolution
1mm.
Calibration
4 buttons or via MODBUS RTU
Warm-up
1 minutes typical
LCD Display
Plug-in display/keyboard 4 buttons matrix LCD

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4-DIMENSIONS
FLOWMETER - dimensions
4.1 MECHANICAL DIMENSIONS
66
127,5
223
Ø55,5
Ø95
127,5
Ø95
2" G
66
232,5
Ø55,5
2" G
239,5
127,5
Ø55,5
PP HOUSING
ALUMINIUM HOUSING
PP HOUSING + EXTENSION

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5.1 MOUNTING PRECAUTIONS
5.1.1 Mounting position
- Use a protective cover to protect the sensor from weather and direct sunlight (b).
- Do not install the sensor near the load zone (a).
- Make sure that in the sensor emission beam (lobe “α”) there are no obstacles (c) that can be intercepted as level.
- Make sure that there is not foam presence on the product surface to be measured.
Lobo “α“
FLOWMETER 5mt 10°
Make sure that the FLOWMETER distance from the weir channel point is equal or greater than to the minimum allowed
distance. In the following gure, the example with a Venturi channel (min. dist.4xb0) and a Palmer-Bowlus channel
(min. dist. D/2) prefabricated (available in our catalog)..
Venturi channel Palmer Bowlus
FLOWMETER - installation
5-INSTALLATION

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FLOWMETER - installation
5.1.2 Blind distance
During installation is important to remember that in the sensor vicinity there is a blind zone (or BLIND DISTANCE) of 0.25m
where the sensor can not measure.
Blind Distance
0.25mt (5mt)

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No
c
No
c - + A B
RL1 RL2
4÷20mA MUDBUS
12Vdc / 24Vdc
FLOWMETER - electrical connections
6-ELECTRICAL CONNECTIONS
6.1 WIRING
1) Separate the engine control cables or power cables from the FLOWMETER connection cables
2) Open the cap by unscrewing.
3) Lead the cables into the transmitter through the glands
4) Do not use sleeves terminals, because they might interfere with the VL601 module insertion
5) Close the cap and tighten the cable glands
6.2 HUMIDITY INFILTRATIONS
To avoid the humidity inltration inside the housing is recommended:
- for electrical connections, use a cable with a 6÷12mm outer diameter and fully tighten the M20 cable gland
- fully tighten the cap
- position the cable so that it forms a downward curve at the M20 output; in this way the condensation and/or rain
water will tend to drip from the curve bottom

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1
2
3
USB/RS485
FLOWMETER - electrical connections
6.3 DIGITAL COMMUNICATIONS CONNECTION
7.3.1 MODBUS RTU PC connection
1) FLOWMETER with MODBUS RTU communication protocol
2) USB/RS485 interface module, cod.694A004A
3) MODBUS RTU communication S/W, cod.010F119A, for FLOWMETER transmitter
With this soware is possible:
- connect, by selecting the UID address, the FLOWMETER transmitters in MODBUS RTU network
- read on your PC monitor all measures in reading and FLOWMETER operation data
- programming all FLOWMETER conguration parameters
- storing on les, data logger function; FLOWMETER measures in reading and operating states

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!
FLOWMETER - local operator interface (LOI) - VL601
7-LOCAL OPERATOR INTERFACE (LOI) - VL601
LOI is an operator communications center for the FLOWMETER. Through the LOI, the operator can access any
transmitter function for changing conguration parameter settings or other functions.
7.1 VL601 FEATURES
The VL601 program module has 4 buttons which allow to perform all operational, control and programming
instrument functions.
In the conguration menus, is possible:
1. Submenus and parameters access; press to select and press to access.
2. Parameter options choice: Press to select the option and press to store the option.
Press to exit without storing.
3. Congure the parameter values; in some parameters the conguration is done by setting a value
(eg., in the SET DISTANCE 4mA parameter is possible to change the the corresponding distance value, in mm):
press to select the digit to be modied (the digit is highlighted in inverse ), press to change the high
lighted digits number, press to save the set value and exit automatically.
Press to exit without storing.
LEFT ARROW button:
• Exit conguration
• Back to previous menu
• Echo map (from RUN mode)
UP ARROW button:
• Parameter values modication
• Parameter scroll
SCROLL button:
• Cursor movement (to the right)
• Parameter scroll
ENTER button:
• Conguration access
• Options conrmation
• Parameters values conrmation
Displayed at the bottom indicates the correct echo signal reception
Displayed at the top alerts that there is a generic error; press SCROLL to show the message that
indicates the present error type.
The FLOWMETER returns automatically to RUN mode.

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FLOWMETER - local operator interface (LOI) - VL601
The VL601 programming module can be mounted and removed from the FLOWMETER without aecting the unit operation.
Unscrewing the cap, the VL601 module can be mounted (by clockwise rotation until it clicks) or dismounted (by rotation
counterclockwise) as shown in gure.
LOCK UNLOCK

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FLOWMETER - local operator interface (LOI) - VL601
7.2 - ECHO MAP
Pressing LEFT ARROW, from RUN mode, to access directly to the echoes digital map display, which are in
FLOWMETER receiving.
This function is useful for:
- properly orient the transducer pointing.
- verify the echoes in acquisition correctness.
- identify any false echo signals that may cause measurement errors.
1 5432
m
D 721mm G 020 57.2KHz
The rectangle placed at the echo line base, indicates
the measurement range within which the echo signal
in reception is considered always valid for the distance
measurement. This interval value is variable depending
on the measurement conditions: min. ± 2.5% of the
measured distance.
Echo signal normalization
threshold
Measured distance from
FLOWMETER in real time
Measure status Echo frequency

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FLOWMETER - conguration
8-CONFIGURATION
8.1 - “SETUP” menu
8.2 - SETUP
From “RUN” mode press ENTER to access the conguration mode
Press SCROLL to select the menu and press ENTER to access.
Press LEFT ARROW to exit
.
SETUP
DISPLAY
FLOW APPL.
SERVICE
INFO
►
RELAYS
SET MAX FLOW
FILTER COEFFICIENT
BLIND DISTANCE
►
137.54
FLOW m³/h
18369
TOTALIZER m³
>
M
IN
>
MAX
SETUP
S ET MAX FLOW
R ELAYS
FILTER COEFFICENT
BLIND DISTANCE
RL2 DIAGNOSTIC
RL2 THRESHOLD
RL1 COUNTER RL1 COUNTER
00000.00 m3
MIN/MAX
V ALUE
DELAY
ENABLE/DISABLE
SAFETY
VALUE
00000.00 m3/h
DELAY
00s
>
NO
>
YES
>
ENABLE
>
DISABLE
>
ENABLE
>
DISABLE
S ET MAX FLOW
00000.00 m3/h
FILTER COEFFICENT
20 s
BLIND DISTANCE
0250 mm

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FLOWMETER - conguration
8.2.1 - RELAY
Position the cursor on RELAY, press ENTER to conrm
In this sub-menu it’s possible to setup the on-board relays
RL1 can be set as volume pulse output relay;
RL2 can be set as instantaneous ow rate threshold relay or diagnostic relay.
Press SCROLL button to select the operation mode,
then pressing ENTER to conrm the selection
RELAYS
SET MAX FLOW
FILTER COEFFICIENT
BLIND DISTANCE
►
RL1 COUNTER
RL2 THRESHOLD
RL2 DIAGNOSTIC
►
8.2.2 - RL1 COUNTER
Position the cursor on RL1 COUNTER, press ENTER to conrm
Set the single pulse value, in m3
Use UP ARROW and SCROLL to modify the value.
Press ENTER to conrm. LEFT ARROW to exit without changes
Default value: 0
00000.00
RL1 COUNTER
m³
RL1 COUNTER
RL2 THRESHOLD
RL2 DIAGNOSTIC
►
8.2.3 - RL2 THRESHOLD
Position the cursor on RL2 THRESHOLD, press ENTER to conrm
In this submenu you can set the set-point and the RL2 action type.
Press SCROLL button to select the parameter to be programmed.
Press ENTER to conrm.
VALUE
MIN / MAX
DELAY
SAFETY
ENABLE / DISABLE
►
RL1 COUNTER
RL2 THRESHOLD
RL2 DIAGNOSTIC
►
8.2.3.1 - VALUE
Position the cursor on VALUE, press ENTER to conrm
It’s possible to input the ow rate threshold value in m3/h.
Use UP ARROW and SCROLL to modify the value.
Press ENTER to conrm. LEFT ARROW to exit without changes
Default value: 00000.00
00000.00
VALUE
m³
VALUE
MIN / MAX
DELAY
SAFETY
ENABLE / DISABLE
►

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FLOWMETER - conguration
8.2.3.2 - MIN/MAX
Position the cursor on MIN/MAX, press ENTER to conrm
It’s possible to select if the relay works as minimum ow rate
or maximum ow rate threshold.
Press SCROLL button to select the operation mode.
Press ENTER to conrm. LEFT ARROW to exit without changes
Default value: MAX
MAX
MIN
►
VALUE
MIN / MAX
DELAY
SAFETY
ENABLE / DISABLE
►
8.2.3.3 - DELAY
Position the cursor on DELAY, press ENTER to conrm
It’s possible to select the activation delay for the RL2, from 0 to 99 sec.
Use UP ARROW and SCROLL to modify the value.
Press ENTER to conrm. LEFT ARROW to exit without changes
Default value: 00s
00 s
DELAY
VALUE
MIN / MAX
DELAY
SAFETY
ENABLE / DISABLE
►
8.2.3.4 - ENABLE/DISABLE
Position the cursor on ENABLE/DISABLE, press ENTER to conrm
Select ENABLE to activate RL2 threshold.
Select DISABLE to not RL2 relay threshold.
Press SCROLL button to select the operation mode.
Press ENTER to conrm. LEFT ARROW to exit without changes
Default value: ENABLE
DISABLE
ENABLE
►
VALUE
MIN / MAX
DELAY
SAFETY
ENABLE / DISABLE►
8.2.3.3 - SAFETY
Position the cursor on SAFETY, press ENTER to conrm
A “safety alarm” provides a “closed” contact with relay energized
in normal condition (no alarm), the contact switches to “open”:
- Alarm condition (eg overcoming MAX);
- In power failure case.
Press SCROLL button to select the alarm mode.,
Press ENTER to conrm. LEFT ARROW to exit without changes
Default value: YES
NO
YES
►
VALUE
MIN / MAX
DELAY
SAFETY
ENABLE / DISABLE
►

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8.2.3.5 - RL2 DIAGNOSTIC
Position the cursor on RL2 DIAGNOSTIC, press ENTER to conrm
If it becomes necessary the FLOWMETER functional control, it’s possible
to enable the RL2 alarm output function. In this case, enabling the
function, RL2 is energized in normal operation (RL2 LED on) and is
de-energized (LED RL2 o, safety alarm) when at least one of the four
conditions mentioned below, shall be veried:
- TEMP. : temperature out of range
- ECHO : no echo is detected
- GAIN : the sensor’s gain exceed the value setted in Max Gain TH
- FLOW : the measured ow exceed the 120% of SET MAX FLOW in setup
Press SCROLL button to select the operation mode.
Press ENTER to conrm. LEFT ARROW to exit without changes
Default value: DISABLE
NOTE: when an error occurs, a “!” is ashing on the display:
press SCROLL to show a message that indicate what kind of error is present.
The METER automatically returns to RUN mode..
RL1 COUNTER
RL2 THRESHOLD
RL2 DIAGNOSTIC
►
DISABLE
ANABLE
►
FLOWMETER - conguration
8.2.4 - SET MAX FLOW
Position the cursor on SET MAX FLOW, press ENTER to conrm
In this sub-menu it’s possible to setup the MAX ow rate value associated
with 20mA.
Use UP ARROW and SCROLL to modify the value.
Press ENTER to conrm. LEFT ARROW to exit without changes
Default value: 0
00100.00
SET MAX FLOW
m³/h
RELAYS
SET MAX FLOW
FILTER COEFFICIENT
BLIND DISTANCE
►
8.2.5 - FILTER COEFFICIENT
Position the cursor on FILTER COEFFICIENT, ENTER to conrm
Enter a value from 1 to 99: 1 = maximum speed, 99 = maximum slowness.
The function is deactivated with 0 (immediate response)
Use UP ARROW and SCROLL to modify the value.
Press ENTER to conrm. LEFT ARROW to exit without changes
Default value: 20
020 s
FILTER COEFFICIENT
RELAYS
SET MAX FLOW
FILTER COEFFICIENT
BLIND DISTANCE
►

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FLOWMETER - conguration
8.2.6 - BLIND DISTANCE
Position the cursor on BLIND DISTANCE, ENTER to conrm
Represent the “BLIND ZONE” of the sensor. Input the desired value in order
to avoid measures near the surface of the sensor (if necessary).
The minimum value is 250mm
Use UP ARROW and SCROLL to modify the value.
Press ENTER to conrm. LEFT ARROW to exit without changes
Default values: 250mm
RELAYS
SET MAX FLOW
FILTER COEFFICIENT
BLIND DISTANCE
►
0250 mm
BLIND DISTANCE

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FLOWMETER - conguration
8.3 - DISPLAY MENU
8.4 - DISPLAY
Press SCROLL to select the menu and press ENTER to access.
Press LEFT ARROW to exit.
SETUP
DISPLAY
FLOW APPL.
SERVICE
INFO
►
8.4.1 - DISPLAY VALUES
Position the cursor on DISPLAY VALUES, press ENTER to access.
It’s possible to select the two values are shown on the display in “RUN” mode.
Press SCROLL button to select the parameter to be programmed.
Press ENTER to conrm. LEFT ARROW to exit without changes.
DISPLAY VALUES
SET FLOWRATE
LCD CONTRAST
WELCOME TEXT
►
PRIMARY VALUE
SECONDARY VALUE
►
8.4.1.1 - PRIMARY/SECONDARY VALUES
Position the cursor on primary/secondary VALUES,press ENTER to access.
Two values are displayed; it’s possible to choose which one is the primary
and which is the secondary, each with a choice of 5 parameters.
Press SCROLL button to select data to display
Press ENTER to conrm. LEFT ARROW to exit without changes
PRIMARY VALUE
SECONDARY VALUE
►
DISTANCE mm
HEAD mm
FLOW
TOTALIZER
TEMPERATURE °C
►
DISPLAY D ISPLAY VALUES
DISTANCE mm
HEAD mm
F LOW
TOTALIZER
TEMPERATURE °C
>
PRIMARY VALUE
>
SECONDARY VALUE
SETFLOWRATE
LCD CONTRAST LCD CONTRAST
16
WELCOME TEXT
l/sec
l/min
l/h
m
3
/sec
m
3
/min
m
3
/h
WELCOME TEXT
SGM-LEKTRA
FLOWMETER
>
PRIMARY VALUE
>
SECONDARY VALUE

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FLOWMETER - conguration
8.4.2 - SET FLOWRATE
Position the cursor on SET FLOWRATE, press ENTER to conrm.
Press SCROLL button to select the instantaneous ow rate measure unit
to be programmed.
Press ENTER to conrm. LEFT ARROW to exit without changes.
DISPLAY VALUES
SET FLOWRATE
LCD CONTRAST
WELCOME TEXT
►
l/sec
l/min
l/h
m³/sec
m³/min
m³/h
►
8.4.3 - LCD CONTRAST
Position the cursor on LCD CONTRAST, press ENTER to conrm.
it’s possible to adjust the contrast of LCD, simply increasing or decreasing the
value of a parameter from 0 to 63.
Use UP ARROW and SCROLL to modify the value.
Press ENTER to conrm. LEFT ARROW to exit without changes.
Default value: 16
DISPLAY VALUES
SET FLOWRATE
LCD CONTRAST
WELCOME TEXT
►
32
LCD CONTRAST
8.4.4 - WELCOME TEXT
Position the cursor on WELCOME TEXT, press ENTER to conrm
It’s possible to edit or delete the message that is displayed by the
FLOWMETER during the ignition phase.
Use UP ARROW (up scroll) and SCROLL (down scroll) to change the digit;
ENTER to move the digit to the right. To conrm press ENTER repeatedly until
leave the parameter. LEFT ARROW to exit without changes
Default value: SGM-LEKTRA FLOWMETER
DISPLAY VALUES
SET FLOWRATE
LCD CONTRAST
WELCOME TEXT
►
SGM-LEKTRA
FLOWMETER
WELCOME TEXT