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LFS-20
Instruction Manual
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LeviFlow LFS-04, LFS-08, LFS-20, LFS-50, LFS-80 Instruction Manual

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User Manual for LEVIFLOWTM LFS Flowmeters
www.levitronix.com
This manual contains information necessary for the safe and proper use of the LEVIFLOWTM flowmeter series. Included are specifications for the standard configuration, components, and instructions regarding its use, installation, operation, adjustment, inspection and maintenance. For special configuration of the LEVIFLOWTM flowmeters refer to accompanying information. If the flowmeters have to be configured for other parameter settings then the
LEVIFLOWTM configuration software (with according manual Levitronix Doc.# PL-4501-00) is necessary. Please
familiarize yourself with the contents of this manual to ensure the safe and effective use of this product. After reading, please store the manual where the personnel responsible for operating can readily refer to it at any time.
LEVIFLOW
USER MANUAL
TM
LFS FLOWMETERS
LEVIFLOWTM Sensors: LFS-04, -08, -20, -50, -80 (LFS-Series Sensors)
LFS-008 (Low-Flow Sensor)
LEVIFLOWTM Converters: LFC-1C (single channel, LFS-Series)
LFC-6C (6-channel, LFS-Series) LFC-1C-F4 (single channel, LFS-008 only)
User Manual for LEVIFLOWTM LFS Flowmeters
www.levitronix.com
2
Table of Contents
1 SAFETY PRECAUTIONS .......................................................................................................................................... 3
2 SPECIFICATIONS ..................................................................................................................................................... 4
2.1 Component Overview ........................................................................................................................................ 4
2.2 Standard System Configurations ....................................................................................................................... 5
2.2.1 Single Channel Configuration – LFS-Series ..................................................................................................................... 5
2.2.2 Multi-Channel Configuration – LFS-Series ........................................................................................................................ 5
2.3 Specifications of Sensors .................................................................................................................................. 6
2.4 Specifications of Converters .............................................................................................................................. 7
2.4.1 General Specifications ..................................................................................................................................................... 7
2.4.2 Overview of Parameter Configuration ............................................................................................................................... 8
2.5 Basic Dimensions of Main Components ............................................................................................................ 9
2.5.1 Dimensions of Sensors .................................................................................................................................................... 9
2.5.2 Dimensions of Converters .............................................................................................................................................. 10
3 INSTALLATION ....................................................................................................................................................... 11
3.1 Installation of Converter LFC-1C / LFC-1C-F4................................................................................................. 11
3.1.1 Overview and Preparation .............................................................................................................................................. 11
3.1.2 Instructions for Electrical Installation ............................................................................................................................... 12
3.1.3 Instructions for Mechanical Installation ........................................................................................................................... 12
3.2 Installation of Converter LFC-6C ..................................................................................................................... 13
3.2.1 Overview and Preparation .............................................................................................................................................. 13
3.2.2 Instructions for Electrical Installation ............................................................................................................................... 14
3.2.3 Instructions for Mechanical Installation ........................................................................................................................... 14
3.2.4 Configuration of Sensor Specific Data ............................................................................................................................ 14
3.3 Installation of Sensors ..................................................................................................................................... 15
3.3.1 Overview and Preparation .............................................................................................................................................. 15
3.3.2 Instructions for Electrical Installation ............................................................................................................................... 15
3.3.3 Instructions for Mechanical and Hydraulic Installation ..................................................................................................... 16
4 OPERATION ............................................................................................................................................................ 17
4.1 General Timing Specifications ......................................................................................................................... 17
4.1.1 Startup Time .................................................................................................................................................................. 17
4.1.2 Thermal Stability Time .................................................................................................................................................... 17
4.1.3 Zero Adjustment Activation Time .................................................................................................................................... 17
4.1.4 Automatic Zero Adjustment duration ............................................................................................................................... 17
4.2 System Operation with LFC-1C / LFC-1C-F4 .................................................................................................. 18
4.2.1 Standard Operation with PLC Interface .......................................................................................................................... 18
4.2.2 Typical Setups Using the PLC Interface ......................................................................................................................... 18
4.2.3 Operation with RS485 .................................................................................................................................................... 19
4.2.4 Display Messages .......................................................................................................................................................... 19
4.3 System Operation with Converter LFC-6C ...................................................................................................... 20
4.3.1 Operation with RS485 .................................................................................................................................................... 20
4.3.2 Standalone Operation with Display ................................................................................................................................. 20
4.3.3 Display Messages .......................................................................................................................................................... 20
4.4 Operation with LEVIFLOW Configuration Software ......................................................................................... 20
5 INSPECTION AND MAINTENANCE ....................................................................................................................... 21
6 TROUBLESHOOTING ............................................................................................................................................. 22
6.1 Common Troubles ........................................................................................................................................... 22
6.2 Troubleshooting with LEVIFLOWTM Configuration Software ............................................................................ 22
7 TECHNICAL SUPPORT .......................................................................................................................................... 23
8 APPENDIX ............................................................................................................................................................... 24
8.1 Regulatory Status ............................................................................................................................................ 24
8.1.1 CE Marking .................................................................................................................................................................... 24
8.2 Symbols and Signal Words .............................................................................................................................. 25
User Manual for LEVIFLOWTM LFS Flowmeters
www.levitronix.com
3
CAUTION
Do not under any circumstances open the converter or sensor housing. Levitronix does not assume responsibility for any damage, which occurs under such circumstances.
WARNING
Hazardous voltage may be present.
In case of the usage of an inadequate AC/DC power supply, mains voltages may be present (even if the system is designed for 24VDC).
The converter must be placed in a spill protected environment. Do not under any circumstances open the powered converter.
The usage of galvanic separated AC/DC supply is highly recom­mended (preferable with UL 1950, UL 508C and/or IEC/EN60950).
WARNING
TOXIC CHEMICALS may be present.
When using the flowmeter to measure chemicals skin contact and toxic gases may be hazardous to your health. Wear safety gloves and other appropriate safety equipment.
1 Safety Precautions
User Manual for LEVIFLOWTM LFS Flowmeters
www.levitronix.com
4
Pos.
Part Name
Part #
Shape
Flow
Fitting
Cable
Jacket
Cable
Length
Special Feature
Note
1a
LFS-008-Z LFS-008-U
100-30323 100-30324 Z U
0 – 0.8 lpm
1/4”
FEP
0.5 m
PVDF male connector cover
Sensor specific parameter for converter calibration are delivered on a tag attached to the flowsensor.
1b
LFS-04-Z-T025 LFS-04-U-T025
100-30321 100-30322 Z U
0 – 4 lpm
1/4”
1c
LFS-04-Z LFS-04-U
100-30304 100-30305 Z U
0 – 4 lpm
3/8”
1d
LFS-08-Z LFS-08-U
100-30306 100-30307 Z U
0 – 8 lpm
3/8”
1e
LFS-20-Z LFS-20-U
100-30308 100-30309 Z U
0 – 20 lpm
1/2”
1f
LFS-50-Z LFS-50-U
100-30310 100-30311 Z U
0 – 50 lpm
3/4”
1g
LFS-80-Z LFS-80-U
100-30312 100-30313 Z U
0 – 80 lpm
1”
Pos.
Article Name
Part #
Description
Interfaces
2a
LFC-1C
100-30314
Single Channel Converter
Analog Output (4 – 20 mA), 2x Digital Output, 1x Digital Input, RS485 (MODBUS) protocol
2b
LFC-1C-F4
100-30325
3
LFC-6C
100-30315
6-Channel Converter
- RS485 (MODBUS) protocol
- Note: Connector and Termination Box to be ordered as separate article (see Table 3)
Pos.
Article Name
Part #
Features
Special Feature
4a
LFE-A.1-10 LFE-A.1-30 LFE-A.1-60
190-10162 190-10163 190-10164
Cable length: 1 m, PVC Cable length: 3 m, PVC Cable length: 6 m, PVC
- PVDF female connector cover for IP-65 chemical protection
- Flame retardant PVC white (UL VW-1 corresponds to EN-60332-1-2)
4b
LFE-A.2-10 LFE-A.2-30 LFE-A.2-60
190-10165 190-10166 190-10167
Cable length 1 m, FEP Cable length 3 m, FEP Cable length 6 m, FEP
- PVDF female connector cover for IP-65 chemical protection 5a
Connector Box for LFC-6C
100-30316
COMBICON connector
Is needed for wiring stacks of LFC-6C converters
5b
Termination Box for LFC-6C
100-30317
--
Is needed for termination of RS485 bus
6a
EX-1303
100-30318
USB-RS485/RS422 Adaptor
For PC communication with converters over RS485 bus
6b
RS485 Cable
100-30319
D-SUB Connector with Open-End Cable
For wiring, when used with EX-1303
Pos.
Part Name
Part #
Flow
Range
Fitting
Cable
Jacket
Sensor Cable
Length
Note
6a
LFS-008-Z + LFC-1C-F4 LFS-008-U + LFC-1C-F4
100-90625 100-90626
0 – 0.8 lpm
1/4"
FEP
0.5 m
Converter is delivered with sensor specific parameters already stored.
Extension cables to be ordered as separate article with specified length (see Table 2)
6b
LFS-04-Z-T025+LFC-1C LFS-04-U-T025+LFC-1C
100-90627 100-90628
0 – 4 lpm
1/4"
6c
LFS-04-Z+LFC-1C LFS-04-U+LFC-1C
100-90604 100-90605
0 – 4 lpm
3/8”
6d
LFS-08-Z+LFC-1C LFS-08-U+LFC-1C
100-90606 100-90607
0 – 8 lpm
3/8”
6e
LFS-20-Z+LFC-1C LFS-20-U+LFC-1C
100-90608 100-90609
0 – 20 lpm
1/2”
6f
LFS-50-Z+LFC-1C LFS-50-U+LFC-1C
100-90621 100-90622
0 – 50 lpm
3/4”
6g
LFS-80-Z+LFC-1C LFS-80-U+LFC-1C
100-90623 100-90624
0 – 80 lpm
1”
2
1c 3 5a
5b 4 6b
6a
1d
1e
1f
1g
2 Specifications
2.1 Component Overview
Figure 1: LEVIFLOWTM flowmeter components
Table 1: Standard flow sensor models
Table 2: Standard converters
Table 3: Accessories
Table 4: Flowmeter sets – flowsensor with single channel converter LFC-1C/LFC-1C-F4
User Manual for LEVIFLOWTM LFS Flowmeters
www.levitronix.com
5
LEVIFLOWTM Converter LFC-1C (Single Channel)
4-Digit Display
Zero Adjustment
Adress Setting for RS485
Piezo Transducers
In-/Output
IN OUT
Electrical Interface
Power Supply: 24 VDC
RS485 (MODBUS)
- Configuration with PC Software
- Data Reading
- Fieldbus Array of Multiple Sensors
Analog and Digital Outputs
- 1x Analog Output
- 2x Digital Outputs
- 1x Digital Input
LEVIFLOW
TM
Sensor LFS-xx
Flow In
Flow Out
Extension
Cables LFE
Digital
Signal Processor
DSP
LEVIFLOWTM Converter LFC-6C
(6-Channel)
4-Digit Display
Zero Adjustment
Address Setting for RS485
Piezo Transducers In-/Output
Signal/Power Bus Connector
Power Supply: 24 VDC
RS485 (MODBUS)
- Configuration with PC Software
- Data Reading
Digital
Signal Processor
DSP
Flowsensor LFS
Flowsensor LFS
Flowsensor LFS
Flowsensor LFS
Flowsensor LFS
Flowsensor LFS
2.2 Standard System Configurations
2.2.1 Single Channel Configuration – LFS-Series
Figure 2: Flowmeter configuration with LFC-1C single channel converter
(for LFS-008 flow sensor special LFC-1C-F4 converter is necessary)
2.2.2 Multi-Channel Configuration – LFS-Series
Figure 3: Flowmeter configuration with LFC-6C converter (6 channel)
(Does not work with LFS-008 flow sensor)
User Manual for LEVIFLOWTM LFS Flowmeters
www.levitronix.com
6
Sensor Type
Characteristics
LFS-008
LFS-04
LFS-08
LFS-20
LFS-50
LFS-80
Flow Range [lpm]
0 – 0.8
0 – 4
0 – 8
0 – 20
0 – 50
0 – 80
Fitting Tube Size (OD)
1/4”
1/4” or 3/8”
3/8”
1/2”
3/4”
1”
Measurement Path ID in [mm]
2.5 4 6
10
15
20
Accuracy Flow Velocity < 1 m/s Flow Range [lpm]
0.29 – 0.8
0 – 0.8
0 – 1.7
0 – 4.7
0 – 10.6
0 – 18.8
Accuracy [lpm]
see Figure 4
± 0.008
± 0 – 0.017
± 0.047
± 0.106
± 0.188
Repeatability [lpm]
see Figure 4
< 0.004
< 0.009
< 0.024
< 0.053
< 0.94
Accuracy Flow Velocity > 1 m/s Flow Range [lpm]
0.29 – 0.8
0.8 – 4
1.7 – 8
4.7 – 20
10.6 – 50
18.8 – 80
Accuracy of Reading
± 1%
± 1%
± 1%
± 1%
± 1%
± 1%
Repeatability of Read.
< 0.5%
< 0.5%
< 0.5%
± 0.5%
± 0.5%
± 0.5%
Weight [g]
97
97
95
115
150
180
Pressure Drop Coefficient C
P = C x Q2 ,
Q = Flow [lpm], P = Press. Drop [kPa]
16.8
1.80
(3/8” fitting)
0.88
0.06
0.01
0.003
Fluid Temperature
Normal range: 10 – 90 0C ( 50 – 194 0F ) Max. temperature: 160 0C (320 0F) 1 (not for LFS-008)
Ambient Temperature
0 – 60 0C (32 - 140 0F)
Maximum Fluid Pressure
0 – 0.5 MPa ( 0 – 5 bar, 0 – 72.5 psi)
Kinematic Viscosity
0.8 – 40 mm2/s (0.8 – 40 cSt)
Sound Speed
1000 – 2200 m/s
Wet Materials
PFA
Sensor Enclosure Classification
IP-65
Cable Jacket Material
FEP (PVC on request and at minimum order quantities)
Standard Cable Length
0.5m with extension cables for length variation
(other length on request and at minimum order quantities)
Electrical Connectors
SMB with protective PVDF cover (male with O-Ring, IP-65 protection)
0%
1%
2%
3%
4%
5%
6%
7%
8%
9%
10%
1 10 100 1000
[mlpm]
Accuracy of Reading Repeatability of Reading for LFS-008 Full Scale Change Line
Full Scale = 35 mlpm
Full Scale = 800 mlpm
2.3 Specifications of Sensors
Table 5: Specifications of sensors (All data based on water at 20
1
: The flow sensors LFS-04/08/20/50/80 are functionally tested up to 1600C liquid temperature. However, no lifetime and
MTBF data can be given for the high temperature range. Levitronix® reject warranty for Leviflow products used at liquid temperatures > 90°C. For further specific information please contact Levitronix.
o
C)
Figure 4: Repeatability and accuracy specification for LFS-008 sensor
User Manual for LEVIFLOWTM LFS Flowmeters
www.levitronix.com
7
Characteristics
Single Channel Converter Types LFC-1C/LFC-1C-F4
6-Channel Converter Type LFC-6C
Power Supply Current / Start Current
24 VDC ± 10% 150 mA / 4.4 A, 2 ms max.
24 VDC ± 10% 150 mA / 4.4 A, 2 ms max.
Ambient Temp Humidity Range
0 – 50 °C (32 – 122 °F) 30 - 85% R.H. (no condensation)
0 – 50 °C (32 – 122 °F) 30 - 85% R.H. (no condensation)
Enclosure Classification and Material
IP-20 (indoor use), ABS
IP-20 (indoor use), ABS
Interfaces (see Figure 7 and Figure 9
for detailed PIN designation and electrical specification)
- RS485 -> MODBUS protocol -> max. array of 99 channels
- 1x Analog Output: 4 – 20mA (0 – 20mA configurable)
- 2x Digital Outputs: Flow Alarm, Measurement Error,
Volume Counter Pulse, Volume Counter Alarm, Flow as Frequency or Bubble Detection (default: normally open)
- 1x Digital Input: Volume Counter Reset or Zero Adjust
- 4 Digit display (flow rate, error codes), re-zero button
- Address potentiometers for RS485 address setting
- RS485 -> MODBUS protocol -> max. array of 99 ch.
- stacking of max. 16 converters
-> 5 ms DSP process/time per channel
- 4 Digit display (flow rate, error codes), re-zero button
- Address potentiometers for RS485 address setting
Configuration Parameters (Available and configurable
with RS485/USB converter and configuration software)
- Viscosity
- Low Cutoff,
- Dampening time (filter)
- Full scale setting,
- Linearization (15 points)
- Alarm Outputs
(High and Low Alarm)
- Volume Counter and Volume Counter Alarm Settings
- Viscosity
- Low Cutoff
- Dampening constant
(filter)
- Full scale setting
- Linearization (15 points)
- Alarm Outputs
(High and Low Alarm)
- Volume Counter and Volume Counter Alarm Settings
Weight
130 g
170 g
Mounting
DIN rail
DIN rail
Dimensions
123 x 75 x 17.5 mm
139 x 75 x 17.5
Duration for Activation of Manual and Digital Zeroing
3 sec
3 sec
Duration of Zeroing Procedure
LFC-1C -> normal 6 sec maximum 15 sec LFC-1C-F4 -> normal 26 sec maximum 60 sec.
normal 15 sec maximum 30 sec.
Duration of Measurement Ready after Power-On
10 sec.
10 sec.
Warm-Up Time for Full Performance Measurements
30 min.
30 min.
2.4 Specifications of Converters
2.4.1 General Specifications
Table 6: Specifications of converters
User Manual for LEVIFLOWTM LFS Flowmeters
www.levitronix.com
8
Block
Parameter
Option/Range
Default
Note
Basic
Sensor size
LFS-xx
xx = 04, 08, 20, 50, 80, 008
xx = 008,4,8,20,50,80 (accord. Sensor size)
--
Full scale
0.01 – 100 L/min
(accord. Sensor size)
Default Values: LFS-008 = 0.8 L/min, LFS-04 = 4 L/min, LFS-08 = 8 L/min LFS-20 = 20 L/min, LFS-50 = 50 L/min, LFS-80 = 80 L/min
Unit of flow in display
L/min or mL/min
L/min
Unit of flow rate on the converter display
Damping time
0 – 25 s
0.2 s
Low-pass filter with
T
f
dB
2
1
3
Low cutoff
0.0 – 25.0 %
2 %
Flow cut to 0 below this percentage of full-scale If cutoff 0% is chosen, negative flow becomes visible
Kinematic Viscosity
0.00 – 99.99 cSt
1 cSt
Kinematic Visc. = Dynamic Visc. / Density
Analog output settings
(For LFC-1C / LFC-1C-F4 only)
Analog output setting
4 – 20 mA or
0 – 20 mA
4 – 20 mA
--
Digital input settings
(For LFC-1C / LFC-1C-F4 only)
Digital input
Volume counter reset
Zero adjust
Set Volume Counter to zero
Zero adjust
Automates zeroing, when liquid type changes
Digital output settings
(For LFC-1C / LFC-1C-F4 only)
Digital output 1
Flow alarm High Flow alarm Low
Vol. counter alarm H
Vol. counter alarm HH
Vol. counter Pulse
Measurement Error
Flow as Frequency
Bubble detect
Custom Output
Flow alarm High
- Upper flow limit detection
- Lower flow limit detection
- Flow volume detection first value (one-time)
- Flow volume detection second value
- Pulse per volume
- Error signal (empty sensor etc.)
- Flow as Frequency output (100% of full-scale = 1 kHz)
- Bubble detected signal
- Bits of equipment status can be OR-ed on the output
Digital output 2
Flow alarm Low
Flow alarm
Hysteresis (Flow alarm)
0 – 20 %
0 %
Can be used to get tolerance to noise.
Alarm high
0 – 125 %
105 %
Alarm setting In percentage of full-scale.
Contact type
N.O. = normally open
N.C. = normally closed
N.O. = norm. open
For digital outputs of LFC-1C / LFC-1C-F4 / LFC-1C-CS only.
Alarm low
-10 – 125 %
-5 %
Alarm setting In percentage of full-scale.
Contact type
N.O. = normally open
N.C. = normally closed
N.O. = norm. open
For digital outputs of LFC-1C / LFC-1C-F4 / LFC-1C-CS only.
Volume counter settings
Volume counter enable (activation box)
activated, not activated
not activated
These are settings for volume detection (integration of flow).
Has to be active for the options “ Vol. Counter Alarm H”, “Vol. Counter Alarm HH” and “Vol. Counter Pulse”.
Volume counter base unit
1 mL, 1 L, 1 m3
1 mL
Multiplier factor
0.01, 0.1, 10, 100, 1000
0.1
Volume counter pulse length
0.5, 50, 100ms
0.5 ms
Volume counter alarm enable (activation box)
activated, not activated
not active
-> Settings for one-time volume detection.
-> Volume = “Volume unit” x “Multiplier factor” x “Vol. Counter Alarm H“ value”
-> Has to be active for the options “Vol. Counter Alarm H”, “Vol. Counter Alarm HH”.
Value (Volume counter alarm H)
0 – 999999
--
Contact type (H)
N.O. = normally open
N.C. = normally closed
N.O. = norm. open
Value (Volume counter alarm HH)
0 – 999999
--
Contact type (HH)
N.O. = normally open
N.C. = normally closed
N.O. = norm. open
Measurement Error Settings
Instant Measurement Error Ignore Time
0-99 s
10s
During this time instant measurement errors are ignored. If an instant measurement error stays active for longer time than this time, measurement error arises.
Flow Level on Measurement Error
0%, -25, 125%
Hold
0 %
Signal level of analog output and flow, when measurement error arises
Bubble Detection Settings
Bubble Detect Hold Time
0 – 99 s
0 s
For bubble or particle detection in the process
2.4.2 Overview of Parameter Configuration
Table 7 shows the standard (“Default”) and possible parameter configurations of the flowmeters. This user manual is dealing with the standard configuration. For setting up other configurations the LEVIFLOWTM
Configuration Software is needed. Consult the “Configuration-SW User Manual” (Levitronix Doc.# PL-4501-
00) for more detailed description.
Table 7: Overview of parameters
User Manual for LEVIFLOWTM LFS Flowmeters
www.levitronix.com
9
Sensor Type
Tube
Size
Dimensions in [mm]
A B C D d E F G H
L
LFS-008
1/4"
80 ±1
96 ±1
134 ±1
6.35
4.35
120
20 4
--
500
LFS-04
3/8” 1/4"
80 ±1
98.5 ±1 96 ±1
136 ±1 134 ±1
9.53
6.35
6.33
4.35
120
20 4
--
500
LFS-08
3/8”
80 ±1
98.5 ±1
136 ±1
9.53
6.33
120
20 4
--
500
LFS-20
1/2"
80 ±1
80 ±1
136 ±1
12.7
9.5
120
30
M4 x 31 -> U-shape
M4 x 30 -> Z-shape
25
500
LFS-50
3/4"
80 ±1
80 ±1
141.8 ±1
19
15.8
130
30
M5 x 31 -> U-shape
M5 x 30 -> Z-shape
30
500
LFS-80
1”
80 ±1
80 ±1
148 ±1
25.4
22.2
140
30
M4 x 34 -> U-shape
M4 x 30 -> Z-shape
35
500
48
IN
To Converter
Female Cover
Extension Cable Concept with IP-65 Connector Protection
Æ12
Z-Shape
U-Shape
Tag with Calibration Data
Tag with Calibration Data
2.5 Basic Dimensions of Main Components
2.5.1 Dimensions of Sensors
Figure 5: Dimension legend for LFS-04 and LFS-08 sensors
(left: U-shape, right: Z-shape)
Figure 6: Dimension legend for flowsensors LFS-20, LFS-50 and LFS-80
(left: U-shape, right: Z-shape)
Table 8: Sensor dimensions
User Manual for LEVIFLOWTM LFS Flowmeters
www.levitronix.com
10
Figure 8: Dimensions 6-channel
converter LFC-6C
Figure 9: Mounting and stacking concept
for converter LFC-6C
2.5.2 Dimensions of Converters
Figure 7: Dimensions and layout of interfaces of single channel converter LFC-1C / LFC-1C-F4
User Manual for LEVIFLOWTM LFS Flowmeters
www.levitronix.com
11
a
Sensor Specific Label
DIN Rail Mounting
Sensor Connectors
Interface Connector
Pin 12
Re-Zero Button
b
c
High ADRS
LOW ADRS
4 Digit Display
3 Installation
3.1 Installation of Converter LFC-1C / LFC-1C-F4
3.1.1 Overview and Preparation
1. Check if the Sensor S/N (serial number) and the Sensor Type on the sensor specific label on the converter back side (see Figure 10b) corresponds to the data of the used sensor. If no sensor specific label is applied on the converter the LEVIFLOWTM Configuration Software (see Section
4.4) has to be used to load the sensor specific calibration data (available on the sensor tag, see Figure 6) to the converter. Consult the configuration “Configuration-SW User Manual” (Levitronix Doc.# PL-4501-00) for handling with the LEVIFLOWTM configuration software
Note: If the converter and the flow sensor are ordered and delivered as a set (see Table 4), the sensor specific data is already stored in the converter and the according label is applied on the converter back side.
2. If communication over the RS485 bus is used, check the address settings of the potentiometers on
the front panel of the converter (see Figure 10c). The total address is:
“High ADRS” x 10 + “Low ADRS” x 1
3. The LEVIFLOW
the RS485. For communication with RS485 the MODBUS protocol can be requested at Levitronix.
Figure 10: Single channel converter LFC-1C / LFC-1C-F4
TM
Configuration Software can be used to debug and configure the flowmeter over
User Manual for LEVIFLOWTM LFS Flowmeters
www.levitronix.com
12
WARNING
Hazardous voltage may be present.
In order to avoiding fluid spills shorting voltages within the converter, place the controller in a spill protected environment (for example protected electronic cabinets).
If explosive flammable gases are present, place the converter in an explosion-proof cabinet.
3.1.2 Instructions for Electrical Installation
1. Remove the DC power from the converter.
2. Remove the interface connector (see Figure 10a) from the converter
3. Attach the necessary wires (AWG 14-26) according to the pin specifications in Figure 7.
4. Strip the sheath approximately 3mm from the wires end. Insert core into terminal to the end and tighten the screw. Confirm that the wires are securely fixed by pulling it gently by hand.
5. For usage of a fuse at the power input (24 VDC) a 200 mA slow-blow type is recommended. The peak current after power on of the converter is 4.4 A during 2 ms, which has to be considered, when choosing the fuse type and the AC/DC power supply.
6. Mount the interface connector to the converter and tighten the 2 connector screws.
7. Attach the SMB connectors of the sensor extension cable and assure the “IN” and “OUT” labels of the converter fit with the labels of the extension cable.
8. Do not pull directly on the cable when disconnecting it from the converter. Use the end of the SMB connector to pull it.
9. Before powering on check again all wiring connections. Confirm that the terminals are securely fastened and that there is no possibility of short circuit.
3.1.3 Instructions for Mechanical Installation
1. The converter shall be installed in a spill protected cabinet.
2. Assure that sufficient ventilation is provided in order to avoid exceeding the allowed ambient temperature and humidity range:
Temperature range: 0 – 50 °C (32 – 122 °F) Humidity range: 30 - 85% R.H. (no condensation)
3. Mount the converter on a DIN rail (see Figure 10a).
User Manual for LEVIFLOWTM LFS Flowmeters
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Re-Zero Button
High ADRS
LOW ADRS
4 Digit Display
Channel Indication
a
b
c
d
Channel Selection
DIN Rail Mounting
Sensor Connectors
Connector Box
Pin 1
Termination
Box
Converter
Multi-Converter
Array
Channel 6
Fixation Bars
Fixation
Bar
3.2 Installation of Converter LFC-6C
3.2.1 Overview and Preparation
Figure 11: 6-channel controller LFC-6C
1. Check if all parts are delivered as shown in Figure 11. For every configuration (single converter as shown in Figure 11a and multi converter array as in Figure 11b) a termination box (resistance to terminate the RS485) and a connector box (wiring) is needed.
2. For communication with RS485 check the address settings of the potentiometers on the front panel of the converter (see Figure 11d). The total address of the first channel is: “High ADRS” x 10 + “Low ADRS” x 1
3. The LEVIFLOW
TM
Configuration Software can be used to debug and configure the flowmeter
over the RS485. For communication with RS485 the MODBUS protocol can be requested at
Levitronix.
User Manual for LEVIFLOWTM LFS Flowmeters
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14
WARNING
Hazardous voltage may be present.
In order to avoiding fluid spills shorting mains or other voltages within the controller, place the converter in a spill protected environment (for example protected electronic cabinets).
If explosive flammable gases are present, place the converter in an explosion-proof cabinet.
3.2.2 Instructions for Electrical Installation
1. Remove the DC power from the converter.
2. Remove the interface connector on the connector box (see Figure 11b)
3. Attach the necessary wires (AWG 14-26) according to the pin specifications in Figure 9. Strip the sheath approximately 3mm from the wires end. Insert the core into the connector up to the end and tighten the screw. Confirm that the wires are securely fixed by pulling it by hand.
4. For usage of a fuse at the power input (24 VDC) a 200 mA slow-blow type is recommended. The peak current after power on of the converter is 4.4 A during 2 ms, which has to be considered, when choosing the fuse type and the AC/DC power supply.
5. Mount the interface connector to the converter and tighten the 2 connector screws.
6. Before powering on, check again all wiring connections. Confirm that the terminals are securely fastened and that there is no possibility of short circuit.
3.2.3 Instructions for Mechanical Installation
1. The converter shall be installed in a spill protected cabinet.
2. Assure that sufficient ventilation is provided in order to avoid exceeding the allowed ambient temperature and humidity range:
Temperature range: 0 – 50 °C (32 – 122 °F) Humidity range: 30 - 85% R.H. (no condensation)
3. Bring the fixation bars in to un-lock position (see Figure 9).
4. If multiple converters are used (see Figure 11b) stack them together.
5. Attach the connector box (see Figure 11a)
6. Attach the termination box (Figure 11a) and fix it by pushing the fixation bars of the termination box (see Figure 11b and Figure 9) to the inside.
7. Bring the fixation bars into the locked position (see Figure 9 and Figure 11b)
8. Mount the whole stack on a DIN rail.
3.2.4 Configuration of Sensor Specific Data
In his standard configuration the converter comes shipped without sensor specific data stored. The K-Factor and the 5 Calibration Values of each sensor have to be stored to the converter with the LEVIFLOWTM configuration software. The K-Factor and the 5 Calibration Values (11 for LFS-008) are available on the sensor tag and on a calibration sheet delivered with each sensor.
Consult the configuration “Configuration-SW User Manual” (Levitronix Doc.# PL-4501-00) for handling with the LEVIFLOWTM configuration software.
User Manual for LEVIFLOWTM LFS Flowmeters
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LFS-04
0 – 4 l/min
LFS-08
0 – 8 l/min
LFS-20
0 – 20 l/min
LFS-50
0 – 50 l/min
LFS-80
0 – 80 l/min
Calibration
Tag
Fixation
Thread
Fixation
Hole
LFS-008
0 – 0.8 l/min
3.3 Installation of Sensors
3.3.1 Overview and Preparation
Figure 12: Flowsensor models
1. Check if the sensor contains the calibration tag (with K-Factor and 5 Calibration Values) and if the data corresponds to the values on the calibration sheet delivered with each sensor.
2. Please store the delivered calibration sheet or its data on a defined storage place in order to be able to refer to it in case that the converter is exchanged and that the tag was removed.
3.3.2 Instructions for Electrical Installation
1. Attach the SMB connectors from the sensors to the converter and verify that “IN”/“OUT” labeling on the converter corresponds to the labeling on the sensor cables.
2. For sensor cable length variations the extension cables can be used (described in Table 3). Similar to the sensor cables, the pair of extension cables is labeled accordingly with “IN” and “OUT”. Screw together the two connector protection covers of the sensor (male) and the extension cables (female) (see Figure 5) in order to achieve an IP-65 protection of the connectors. Do not shorten the cables on-site as a special tool is needed to assemble the SMB connectors.
3. Do not pull directly on the cable when disconnecting it from the converter. Use the end of the SMB connector to pull it.
4. After start-up a Zeroing is recommended. Assure that the sensor is completely filled with the
according fluid, is free of bubbles and that zero flow is realized. Then push the “ZERO ADJ”
button on the converters for about three seconds. During adjustment “0ADJ” appears on the converter display.
User Manual for LEVIFLOWTM LFS Flowmeters
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Horizontal Mounting Position:
Stagnation of Bubbles and
Particles
450 Mounting Position:
Free flow of bubbles and
particles
3.3.3 Instructions for Mechanical and Hydraulic Installation
1. In order to mechanically fix the sensor body 2 fixation holes can be used for the LFS-008 and LFS-04/08 models (see Figure 5 and Figure 12) and 4 threads for the LFS-20/50/80 models (see Figure 6 and Figure 12).
2. Assure that at the mounting location the allowed ambient temperature and humidity ranges are not exceeded:
Temperature range: 0 – 60 °C (32 – 140 °F)Humidity range: 30 - 85% R.H. (no condensation)
3. The flow circuit should be completely filled with fluid. The converter DSP (Digital Signal Processor) contains special algorithms, which increase the robustness of the measurement against bubbles. However, assure that excessive bubbles are avoided in the circuit.
4. Ideal mounting position for the flow sensor is 450 (see Figure 13) with upward flow direction to avoid the stagnation of bubbles and particles in the measuring tube.
5. An arrow mark on the flow sensor (see Figure 5 and Figure 6) indicates the flow direction. Make sure that
6. Avoid excessive vibrations such as in the neighborhood of displacement pumps. Insufficient contact of the
7. The flowmeter measures flow velocity. In order to obtain fully developed flow pattern for accurate velocity
8. To install on pipe that has open end, the sensor should be mounted in lower position of the pipe line.
9. The sensor should be mounted where pressure in the pipe is above the atmospheric pressure.
10. Devices like valves are recommended to be installed downstream of the sensor in order to prevent
11. A bypass pipe run (including bypass valve and shutoff valve) is recommended for easy zero adjustment
12. Please confirm that the maximum pressure is below the in Table 5 specified pressure of the sensor.
13. After setup a “Zeroing” is recommended. Assure that the sensor is completely filled with the according fluid
14. If Re-Zeroing is regularly necessary, automation is possible over the digital input of the converter.
15. In the following cases a re-zero is recommended:
Figure 13: Mounting position of flowsensor
the arrow corresponds to the direction of the flow in the hydraulic circuit.
transducer (within the sensor) onto the pipe wall caused by vibration may result in inaccurate measurement.
measurement, straight run of 10x sensor ID upstream and of 5x ID downstream is recommended (see Table 5 for ID specifications of the sensor models). If non-uniform turbulent flow or swirl flow is expected, install longer upstream straight run and/or a flow-rectifier.
formation of bubbles in the liquid. An upstream valve may form bubbles reducing the intensity of the ultrasound signal and interfering with measurement.
and maintenance.
and is free of bubbles. Stable liquid properties should be assured by flushing the circuit with the final liquid until temperature and viscosity becomes stable. After this zero flow shall be realized. Then push the
“ZERO ADJ” button on the converters for about 3 seconds. During adjustment “0ADJ” appears on the
converter display.
a. 30 minutes after power-on of a cool converter and sensor b. Change of fluid properties (temperature, viscosity, density) c. Change of chemistry d. Change of the hydraulic circuit
User Manual for LEVIFLOWTM LFS Flowmeters
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Converter type
Typical duration
Maximum duration
LFC-1C
6 sec
15 sec
LFC-6C
15 sec
30 sec
LFC-1C-F4
26 sec
60 sec
4 Operation
4.1 General Timing Specifications
4.1.1 Startup Time
After power-on a LEVIFLOWTM converter startup sequence with information about converter type, firmware version and baud rate is proceeded. During this sequence flow measurement is not performed. Start-up time is about 8 seconds for every converter type.
4.1.2 Thermal Stability Time
To guarantee specified accuracy thermal stability of sensor has to be reached. Therefore it is recommended to wait 30 minutes after power-on of converter or after connecting a new sensor to the converter.
4.1.3 Zero Adjustment Activation Time
There are three possibilities to activate zero adjustment:
1. Activating by LEVIFLOWTM configuration software: Zero adjustment starts immediately after pressing corresponding button
2. Activating by re-zero button on converter front (see Figure 10c resp. Figure 11d): button has to be pressed during 3 seconds to initiate zero adjustment.
3. Activation by digital input (default configuration): digital input has to be active during 3 seconds to initiate zero adjustment.
4.1.4 Automatic Zero Adjustment duration
The duration to perform an automatic zero adjustment is converter-type specific:
Figure 14: Zeroing duration for converters
User Manual for LEVIFLOWTM LFS Flowmeters
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PIN
Designation
Specification
Standard Configuration
Description
1
DC24V+
Voltage: 24 VDC ±10% Current: 150 mA Start Current: 4.4 A 2ms
--
Supply voltage
2
DC24V-
3
FG
Field Ground
--
Field ground
4
Analog Out +
4-20 mA or 0-20mA configurable Load resistance < 600
Flow reading with 4-20 mA Standard full scale flow range of each sensor model.
Flow rate signal. Update rate is 10ms.
5
Analog Out -
6
Digital Out1 +
Max. rating 30 V DC, 20 mA Open collector
Configurable as Alarm High, Alarm Low, Measurement Error, Volume Counter Pulse, Volume Counter Alarm, Flow as Frequency, Bubble Detect
- Parameter: Flow Alarm High
- Setting: 105% of full scale
- Normally opened
Contact is made, when 105% of full scale flow rate is exceeded.
7
Digital Out2 +
- Parameter: Flow Alarm Low
- Setting: -5% of full scale
- Normally opened
Contact is made, when -5% of full scale flow rate is reached.
8
COM - Common Digital Out ground.
9
Digital In +
No-voltage contact or transistor open collector
Zero Adjustment
Is needed, if zero adjustment wants to be triggered by PLC or when volume counter function is used (integration of flow with volume detection)
10
Digital In -
11
RS485 +
RS485
MODBUS Protocol
Digital communication in a sensor array. or configuration with configuration SW.
12
RS485 -
Converter LFC-1C
e.g. Relay
Schrack
RY211024
Shutoff Valve
Protective
Diode
e.g. Diode
1N4007
Push-Button
24 VDC
4.2 System Operation with LFC-1C / LFC-1C-F4
4.2.1 Standard Operation with PLC Interface
Table 9 shows the standard configuration of the electrical interface (PLC). For other configurations the LEVIFLOWTM configuration software has to be used (according manual is Levitronix Doc.# PL-4501-00).
Table 9: Standard configuration of electrical interface (PLC)
4.2.2 Typical Setups Using the PLC Interface
The Figure 15 and Figure 16 show typical setups for LEVIFLOWTM converters using the PLC interface. Figure 15 is an example how to connect the LEVIFLOWTM converter to a relays to control a shutoff valve by
a digital output. Note that if protective diode is normally not integrated within relays it has to be connected additionally as shown in Figure 15. This setup additionally shows how to connect a push-button to digital input (e.g. for reset of volume counter, which has to be configured with LEVIFLOWTM configuration software).
Figure 15: Controlling a shutoff valve by digital output of LFC-1C-xx converters
User Manual for LEVIFLOWTM LFS Flowmeters
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19
Converter LFC-1C
Levitronix Pump System
20 19
2 1
10
9
Priority
Event
Display Message
Digit 1 – 4
Status Description
1 2 3
4
1
Download
–
d l -
- Firmware download running
- Blinking
2
Volume counter reset
C L E
A
- Volume counter is reset
3
Zero adjustment
0 A d
J
- Zero adjustment is running (approximately 2 sec.)
- Blinking
4
Zero adjustment error
0 – E
r
Zero adjustment error
5
Volume counter pulse set error
P – E
r
Volume counter pulse length is too big to show full scale flow on digital output
6
Measurement error
B – E
r
- Sensor signal error -> empty sensor, bubble, etc.
- Blinking
7
Warning upper limit
H
- Displays upper limit warning (with flow rate display by turns)
- Blinking with flow rate
Warning lower limit
L
- Displays lower limit warning (with flow rate display by turns)
- Blinking with flow rate
Exceeds vol. counter value H
H
- Volume counter value exceeded preset H
- Blinking with flow rate
Exceeds vol. counter value HH
H
- Volume counter value exceeded preset HH
- Blinking with flow rate
8
Flow rate display
X. X X
X
Flow rate range: 0.000 ~ 9.999 L/min
X
X. X X
Flow rate range:10.00 ~ 99.99 L/min
Figure 16 shows an example how to connect digital in-/outputs and analog output of LFC-1C-xx to a Levitronix® Pump System.
Figure 16: Usage of PLC of LFC-1C-xx converters with a Levitronix Pump System
4.2.3 Operation with RS485
Operation with communication over an RS485 bus is possible. The according MODBUS protocol can be requested at Levitronix.
4.2.4 Display Messages
Table 10: Display messages of LFC-1C / LFC-1C-F4 converter
User Manual for LEVIFLOWTM LFS Flowmeters
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20
Single-Channel Converter LFC-1C
4-Digit Display
Zero Adjustment
Adress Setting for RS485
Piezo Transducers
In-/Output
IN OUT
Electrical Interface
Power Supply: 24 VDC
RS485 (MODBUS)
Analog and Digital Outputs
- 1x Analog Output
- 2x Digital Outputs
- 1x Digital Input
Flowsensor LFS-xx
Flow In
Flow Out
Extension
Cables LFE
Digital
Signal Processor
DSP
BUS
Converter
RS232/RS485
or
USB/RS485
LEVIFLOW
TM
Configuration Software
RS232 or USB
Other RS485 Devices
4.3 System Operation with Converter LFC-6C
4.3.1 Operation with RS485
Standard operation with LFC-6C is done with the RS485 interface. The according MODBUS protocol can be requested at Levitronix.
4.3.2 Standalone Operation with Display
The LFC-6C can be used as standalone device, where the flow values can be read on the display. The channel to be read can be chosen with the channel selection potentiometer on the display (see Figure 11d).
4.3.3 Display Messages
The 6-channel converter LFC-6C displays basically the same messages as the single channel converter LFC-1C / LFC-1C-F4 (see Table 10).
Additionally LFC-6C shows on the display on the right side six LEDs (see Figure 11d). LEDs indicate which channel has measurement error active (when channel selection is set to a specific channel 1-6) or indicates, which flow is shown in display at the moment (when channel selection is set to 0).
4.4 Operation with LEVIFLOW Configuration Software
For debugging, data collection and configuration of the flowmeter system the LEVIFLOWTM Configuration Software is available at Levitronix®. Contact Levitronix for a sample of the configuration software and the
according manual (Levitronix Doc.# PL-4501-00). An approved USB to RS485 adaptor with the according connection cable can be ordered according to the information in Table 3.
Figure 17: System operation with LEVIFLOWTM configuration software
User Manual for LEVIFLOWTM LFS Flowmeters
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5 Inspection and Maintenance
The LEVIFLOWTM ultrasonic flowmeters do not require special maintenance since there are no moving parts that can be subjected to wear and tear. However, the following periodical checks are recommended to ensure smooth and reliable operation:
1. Check for excessive mechanical stress onto the flow sensor body for example caused by bended piping.
2. Inspect for loosen connections caused by excessive pipe vibrations.
3. Inspect the sensor visually for any deposits, excessive bubbles or foreign materials in the measuring tube.
User Manual for LEVIFLOWTM LFS Flowmeters
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#
Phenomenon
Possible Cause
Countermeasure
1
“0-Er” indication on converter display
Zero adjustment is not working properly.
Check if the circuit is filled with liquid and the flow is actually zero, and conduct zero adjustment again
2
“b-Er” indication on converter display
Incorrect signal received from measurement in the sensor.
- Check if measuring tube is filled with liquid
- Check if there is something in the measuring path disturbing the ultrasonic wave (bubbles, solid substances etc)
- Check if excessive noise is generated in the neighborhood of the sensor (heavy devices like motors, high voltage cables etc)
- Check if the cables are connected correctly and not damaged
3
Zero flow is indicated even if there is flow in the hydraulic circuit
Wrong parameter and mechanical setup of sensor.
- Check if the parameters have been set
to the optimal values
- Check if the flow direction is correct
4
The flow indication does not match the real flow
Wrong parameter settings, excessive bubbles or solids in the measurement path.
- Check if the parameters in the converter are set correctly
- Inspect the flow path for stagnating solids
- Inspect the measurement path for excessive bubbles
5
Above full scale flow is indicated or the flow signal is unstable
Wrong parameter settings, excessive bubbles or solids in the measurement path.
- Check if the parameters in the converter are set correctly
- Inspect the flow path for stagnating solids
- Inspect the measurement path for excessive bubbles
6 Troubleshooting
6.1 Common Troubles
Table 11: Potential troubles and the possible countermeasures
6.2 Troubleshooting with LEVIFLOWTM Configuration Software
More detailed error analysis can be done with the LEVIFLOWTM configuration software. Contact Levitronix for a sample of the configuration software and the according manual (Levitronix Doc.# PL-4501-00).
User Manual for LEVIFLOWTM LFS Flowmeters
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Levitronix Technical Service Department
Technoparkstr. 1 CH-8005 Zurich Switzerland
Phone for US: 888-569 07 18 Phone for outside US: +1 888-569 07 18 E-Mail: support@levitronix.com
7 Technical Support
For troubleshooting, support and detailed technical information contact LevitronixTechnical Service Department:
User Manual for LEVIFLOWTM LFS Flowmeters
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24
Part Name
Description
LFS-xx
Flowsensors:
LFS-008 (0 – 800 mLpm), LFS-04 (0 - 4 lpm), LFS-08 (0 - 8 lpm), LFS-20 (0 - 20 lpm), LFS-50 (0 - 50 lpm), LFS-80 (0 - 80 lpm)
LFC-1C
Single-Channel Converter for LFS-series sensors: 24V DC supply input
LFC-6C
6-Channel Converter for LFS-series sensors: 24V DC supply input
LFC-1C-F4
Single-Channel Converter for Low-Flow Sensor: 24V DC supply input
EN 61000-6-4
Generic Emission standard for industrial environments
EN 55011
Electromagnetic Disturbances
EN 61000-6-2
Generic Immunity standard for industrial environments
EN 61000-4-2
Electrostatic Discharge Immunity
EN 61000-4-3
Radiated, radio-frequency, electromagnetic field immunity
EN 61000-4-4
Electrical fast transient/burst immunity
EN 61000-4-5
Surge immunity
EN 61000-4-6
Immunity to conducted disturbances, induced by radio-frequency fields
Test Laboratory:
Hochschule für Technik Zürich EMV Labor, Technoparkstr. 1 CH-8005 Zurich, Switzerland
Swiss certification number = STS 404
EN ISO 15494
Plastic piping system for industrial applications
8 Appendix
8.1 Regulatory Status
8.1.1 CE Marking
The LEVIFLOWTM flowmeters, in its various configurations as listed below,
are in conformity with the essential requirements of the EMC Directive 2004/108/EC and the Pressure Equipment Directive 97/23/EC.
The following particular harmonized standards of the EMC Directive
are tested at
The Pressure Equipment Directive 97/23/EC is followed according to Category I Modul A (internal quality control). For max. pressure validation the following standard is used:
User Manual for LEVIFLOWTM LFS Flowmeters
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25
Symbol /
Signal Word
Description
Type
Source
DANGER
Indication of an imminently hazardous situation that, if not avoided, will result in death or severe injury. Limited to the most extreme situation
Signal word
SEMI S1-0701
WARNING
Indication of a potentially hazardous situation which, if not avoided, could result in death or severe injury.
Signal word
SEMI S1-0701
CAUTION
Indication of potentially hazardous situations which, if not avoided, could result in moderate or minor injury. Also alert against unsafe practice.
Without safety alert indication of hazardous situation which, if not avoided, could result in property damage.
Signal word
SEMI S1-0701
Safety alert for “Warning” and “Caution”
Safety alert
SEMI S1-0701
Safety alert for “Danger”
Safety alert
SEMI S1-0701
Caution (refer to accompanying documents) (is used on article labels for reference to manual)
Refer to manual
ISO 3864
Toxic material, poison
Hazard identification
IEC 61310
Corrosive material, corrosion
Hazard identification
IEC 61310
Cut/sever hand, sharp object
Hazard identification
ANSI Z535.3
Strong magnetic field
Hazard identification
SEMI S1-0701
Danger: electricity, electrical hazard
Hazard identification
IEC 61310,
ISO 3864
Wear safety gloves
Hazard avoidance
Mandatory action
IEC 61310
Wear face shield
Hazard avoidance
Mandatory action
SEMI S1-0701
Unplug power line
Hazard avoidance
Mandatory action
SEMI S1-0701
No pacemakers
Hazard avoidance
Prohibition
SEMI S1-0701
8.2 Symbols and Signal Words
Table 12: Safety symbols and signal words
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