Model CSLFB
Liquid Ultrasonic Flow – Analog Output
Loop Powered 4-20 mA Output, Flows to 400 GPM, 3/4″ to 3″ Pipe, Brass.
Description:
Clark Sonic® ultrasonic flow transmitters are ideal for measurement of flow rates of acoustically conductive liquids, including most clean liquids and many liquids with entrained solids.
Main advantages include excellent long term stability, no pressure drop, broad fluid compatibility, high accuracy and low cost. Also, there are no moving parts.
At the heart of the transmitter is a proprietary mixed signal ASIC which allows sophisticated timing, control and transducer drive circuitry to be combined on a single integrated circuit. The ASIC uses a special algorithm that is an improvement upon the standard single-path measurement technique. Using the “sing around” method, the ultrasonic transducer alternates between transmitting and receiving to measure differences in flight time between upstream and downstream transmissions. A sound pulse is transmitted from an upstream transducer towards a downstream transducer like a traditional time-of-flight measurement. However, the received sound pulse then triggers a second downstream transmission that then triggers a third and so on for a specific number of cycles. This process is repeated in the upstream direction.
Because it takes an average flight time over multiple cycles to compute the difference in flight times, the approach yields a significant improvement in timing accuracy when compared with the time-of-flight difference of a single sound pulse in each direction. This algorithm, combined with the pico-second timing resolution of the ASIC, provides the precise time measurement capability necessary for compact, small diameter ultrasonic meters.
The output of the transmitter is unaffected by changes in fluid temperature, density and viscosity as the flow calculation is independent of the speed of sound.
Wetted materials include ULTEM® encapsulated ultrasonic transducers with a choice of elastomer seals and Brass body material.
Specifications:
- Flow Range: Bi-directional, field selectable
- Accuracy: ±.75% of full scale
- Operating Temperature: -40 to 190°F (-40 to 87.8°C)
- Response Time: User Selectable, 2 or 10 seconds
- Viscosity Range: 0.2 to 150 cSt (0.2 to 150 mPas)
- Liquid Density: 30.6 to 74.9 lb/cu.ft. (490 to 1200 kg/m3)
- Max. Working Pressure: 250 PSI (17.2 bars)
- Pipe Sizes: 3/4″, 1″, 1 1/2″, 2″, 3″
- Pipe Connections:
- Sizes 3/4″ to 2″- Female NPT, BSP
- Size 3″: ASME 150 or DIN 16 Flange
- Electrical Enclosure: Integral to Body casting with gasketed cover; One 1/2 NPT conduit connection (plugged when model ordered with metric threads) and one M16 x 1.5 connection (plugged when model ordered with NPT threads)
- Electrical Connections: Screw terminal connections on PC board
- Enclosure Rating: NEMA 4 (IP 65)
- Power: 18 to 36 VDC
Wetted Materials:
- Ultrasonic Transducers: ULTEM® Encapsulated
- Seals: EPDM, Buna-N, Neoprene™, FKM, or other
- Body Material: Brass (UNS C83600)
Output:
- Analog: 2-wire, 4-20 mA output; Output is 4 mA from zero to min. flow
- Error Detection: An optically isolated sink output is activated under
certain detectable fault conditions, such as transducer failure or
overly noisy output due to flow stream anomalies, as might be seen
due to excessive bubble entrainment. The optional Fault output is
an optically isolated NPN transistor capable of sinking up to 10 mA
from a voltage source of no more than 48 VDC. - Direction of Flow: Optional output to indicate direction of flow is
available. Activation or deactivation of an optically isolated 10 mA
sink output indicates flow direction. Error detection is not available
when this option is ordered. - Optional Temperature Sensor: 3 wire RTD, 100 Ohm, Platinum, 0.06% accuracy.
Built in to transducer shell for monitoring process temperature. - Optional 8 pin electrical connector standardly recommended with this option.
Model CSLFC
Liquid Ultrasonic Flow – Analog Output
Loop Powered 4-20 mA Output, Flows to 3000 GPM, 4″ to 10″ Pipe, Carbon Steel.
Description:
Clark Sonic® Ultrasonic Flowmeters are ideal for measurement of flow rates of acoustically conductive liquids including most clean liquids and many liquids with entrained solids.
Main advantages include excellent long term stability, no pressure drop, broad fluid compatibility, high accuracy and low cost. Also, there are no moving parts.
At the heart of the transmitter is a proprietary mixed signal ASIC which allows sophisticated timing, control and transducer drive circuitry to be combined on a single integrated circuit. The ASIC uses a special algorithm that is an improvement upon the standard single-path measurement technique. Using the “sing around” method, the ultrasonic transducer alternates between transmitting and receiving to measure differences in flight time between upstream and downstream transmissions. A sound pulse is transmitted from an upstream transducer towards a downstream transducer like a traditional time-of-flight measurement. However, the received sound pulse then triggers a second downstream transmission that then triggers a third and so on for a specific number of cycles. This process is repeated in the upstream direction.
Because it takes an average flight time over multiple cycles to compute the difference in flight times, the approach yields a significant improvement in timing accuracy when compared with the time-of -flight difference of a single sound pulse in each direction. This algorithm, combined with the pico-second timing resolution of the ASIC, provides the precise time measurement capability necessary for compact, small diameter ultrasonic meters.
The output of the transmitter is unaffected by changes in fluid temperature, density and viscosity as the flow calculation is independent of the speed of sound.
Wetted materials include ULTEM® encapsulated ultrasonic transducers with a choice of elastomer seals and epoxy coated carbon steel body material.
Specification:
- Flow Range: Bi-directional, field selectable
- Accuracy: ±0.75% of full scale
- Operating Temperature: -40 to 190°F (-40 to 87.8°C)
- Response Time: User selectable, 2 or 10 seconds
- Viscosity Range: 0.2 to 150 cSt (0.2 to 150 mPas)
- Liquid Density: 30.6 to 74.9 lb/cu.ft. (490 to 1200 kg/m3) Max. Working
- Pressure: 200 PSI (13.8 bars)
- Pipe Sizes: 4″, 6″, 8″, 10″ Pipe Connections: ASME class 150 flange
- Electrical Enclosure: Integral to Body casting with gasketed cover; One 1/2″ NPT conduit connection (plugged when model ordered with metric threads)
and one M16 x 1.5 connection (plugged when model ordered with NPT threads) - Electrical Connections: Screw terminal connections on PC board Enclosure
- Rating: NEMA 4 (IP 65)
- Power: 18 to 36 VDC
Wetted Materials:
- Ultrasonic Transducers: ULTEM® Encapsulated
- Seals: EPDM, Buna-N, Neoprene™, FKM, or other
- Body Material: Schedule 40, epoxy coated, carbon steel pipe
Output:
- Analog: 2-wire, 4-20 mA output; Output is 4 mA from zero to min. flow
- Error Detection: An optically isolated sink output is activated under certain detectable fault conditions, such as transducer failure or overly noisy output due to flow stream anomalies, as might be seen due to excessive bubble entrainment. The optional Fault output is an optically isolated NPN transistor capable of sinking up to 10 mA
from a voltage source of no more than 48 VDC. - Direction of Flow: Optional output to indicate direction of flow is available.
Activation or deactivation of an optically isolated 10 mA (max. 48V no load voltage) sink output indicates flow direction. Error detection is not available when this option is ordered. - Optional Temperature Sensor: 3 wire RTD, 100 Ohm, Platinum, 0.06% accuracy. Built in to transducer shell for monitoring process temperature.
- Optional 8 pin electrical connector recommended with this option.
Model FTCSLFB
Liquid Ultrasonic Flow – Frequency Output
DC Powered, Frequency Output, Flows to 400 GPM, 3/4″ to 3″ Pipe.
Description:
Clark Sonic® ultrasonic flow transmitters are ideal for measurement of flow rates of acoustically conductive liquids including most clean liquids and many liquids with entrained solids. The transmitters are optionally supplied with a built-in platinum 100 Ohm RTD temperature sensor to monitor the process temperature.
Main advantages include excellent long term stability, no pressure drop, broad fluid compatibility, high accuracy and low cost. Also, there are no moving parts.
At the heart of the transmitter is a proprietary mixed signal ASIC which allows sophisticated timing, control and transducer drive circuitry to be combined on a single integrated circuit. The ASIC uses a special algorithm that is an improvement upon the standard single path measurement technique. Using the “sing around” method, the ultrasonic transducer alternates between transmitting and receiving to measure differences in flight time between upstream and downstream transmissions. A sound pulse is transmitted from an upstream transducer towards a downstream transducer like a traditional time-of-flight measurement. However, the received sound pulse then triggers a second downstream transmission, that then triggers a third and so on for a specific number of cycles. This process is repeated in the upstream direction.
Because it takes an average flight time over multiple cycles to compute the difference in flight times, the approach yields a significant improvement in timing accuracy when compared with the time-of-flight difference of a single sound pulse in each direction. This algorithm, combined with the pico-second timing resolution of the ASIC, provides the precise time measurement capability necessary for compact, small diameter ultrasonic meters.
The output of the transmitter is unaffected by changes in fluid temperature, density and viscosity as the flow calculation is independent of the speed of sound.
Wetted materials include ULTEM® encapsulated ultrasonic transducers with a choice of elastomer seals and brass body material.
At the heart of the transmitter is a proprietary mixed signal ASIC which allows sophisticated timing, control and transducer drive circuitry to be combined on a single integrated circuit. The ASIC uses a special algorithm that is an improvement upon
the standard single-path measurement technique. Using the “sing around” method, the ultrasonic transducer alternates between transmitting and receiving to measure differences in flight time between upstream and downstream transmissions. A sound pulse is transmitted from an upstream transducer towards a downstream transducer like a traditional time-of-flight measurement. However, the received sound pulse then triggers
a second downstream transmission that then triggers a third and so on for a specific number of cycles. This process is repeated in the upstream direction.
Because it takes an average flight time over multiple cycles to compute the difference in flight times, the approach yields a significant improvement in timing accuracy when compared with the time-of -flight difference of a single sound pulse in each direction. This algorithm, combined with the pico-second timing resolution of the ASIC, provides the precise time measurement capability necessary for compact, small diameter ultrasonic meters.
The output of the transmitter is unaffected by changes in fluid temperature, density and viscosity as the flow calculation is independent of the speed of sound.
Wetted materials include ULTEM® encapsulated ultrasonic transducers with a choice
of elastomer seals and epoxy coated carbon steel body material.
Specifications:
- Flow Range: Bi-directional, field selectable
- Accuracy: ±0.75% of full scale
- Operating Temperature: -40 to 190°F (-40 to 87.8°C)
- Response Time: User selectable, 2 or 10 seconds
- Viscosity Range: 0.2 to 150 cSt (0.2 to 150 mPas)
- Liquid Density: 30.6 to 74.9 lb/cu.ft. (490 to 1200 kg/m3)
- Max. Working Pressure: 200 PSI (13.8 bars)
- Pipe Sizes: 3/4″, 1″, 1-1/2″, 2″, 3″
- Pipe Connections:
- Sizes 3/4′ to 2″- Female NPT, BSP
- Size 3″: ASME 150 or DIN 16 Flange
- Electrical Enclosure: Integral to Body casting with gasketed cover; One 1/2″
NPT conduit connection (plugged when model ordered with metric threads)
and one M16 x 1.5 connection (plugged when model ordered with NPT threads) - Electrical Connections: Screw terminal connections on PC board
Optional Electrical Connections: 4 or 8 pin circular receptacle installed in 1/2″ conduit connection and internally wired to transmitter connections. Available in 2, 5 and 10 meter lengths (other lengths on request). - Enclosure Rating: NEMA 4 (IP 65)
- Power: 18 to 36 VDC
- Optional Temperature Sensor: 3 wire RTD, 100 Ohm, Platinum, 0.06% accuracy. Built in to transducer shell for monitoring process temperature. Optional 8 pin electrical connector standardly supplied with this option.
Wetted Materials:
- Ultrasonic Transducers: ULTEM® Encapsulated
- Seals: EPDM, Buna-N, Neoprene™, FKM, or other
- Body Material: Brass (UNS C83600)
Output:
- Frequency: output is an optically isolated NPN transistor capable of sinking up to 10 mA from a voltage source of no more than 48 VDC.
- Frequency output is from 10 to 1200 pulses/gallon depending on range.
Model FTCSLFC
Liquid Ultrasonic Flow – Frequency Output
DC Powered, Frequency Output, Flows to 3000 GPM, 4″ to 10″ Pipe.
Description
Clark Sonic® Ultrasonic Flowmeters are ideal for measurement of flow rates of acoustically conductive liquids including most clean liquids and many liquids with entrained solids.
Main advantages include excellent long term stability, no pressure drop, broad fluid compatibility, high accuracy and low cost. Also, there are no moving parts.
At the heart of the transmitter is a proprietary mixed signal ASIC which allows sophisticated timing, control and transducer drive circuitry to be combined on a single integrated circuit. The ASIC uses a special algorithm that is an improvement upon
the standard single-path measurement technique. Using the “sing around” method, the ultrasonic transducer alternates between transmitting and receiving to measure differences in flight time between upstream and downstream transmissions. A sound pulse is transmitted from an upstream transducer towards a downstream transducer like a traditional time-of-flight measurement. However, the received sound pulse then triggers
a second downstream transmission that then triggers a third and so on for a specific number of cycles. This process is repeated in the upstream direction.
Because it takes an average flight time over multiple cycles to compute the
difference in flight times, the approach yields a significant improvement in timing
accuracy when compared with the time-of -flight difference of a single sound pulse
in each direction. This algorithm, combined with the pico-second timing resolution
of the ASIC, provides the precise time measurement capability necessary for compact,
small diameter ultrasonic meters.
The output of the transmitter is unaffected by changes in fluid temperature, density
and viscosity as the flow calculation is independent of the speed of sound.
Wetted materials include ULTEM® encapsulated ultrasonic transducers with a choice
of elastomer seals and epoxy coated carbon steel body material.
Specification:
- Flow Range: Bi-directional, field selectable
- Accuracy: ±0.75% of full scale
- Operating Temperature: -40 to 190°F (-40 to 87.8°C)
- Response Time: User selectable, 2 or 10 seconds
- Viscosity Range: 0.2 to 150 cSt (0.2 to 150 mPas)
- Liquid Density: 30.6 to 74.9 lb/cu.ft. (490 to 1200 kg/m3)
- Max. Working Pressure: 200 PSI (13.8 bars)
- Pipe Sizes: 4″, 6″, 8″, 10″
- Pipe Connections: ASME class 150 flange
- Electrical Enclosure: Integral to Body casting with gasketed cover; One 1/2″
NPT conduit connection (plugged when model ordered with metric threads)
and one M16 x 1.5 connection (plugged when model ordered with NPT threads)
Electrical Connections: Screw terminal connections on PC board - Optional Electrical Connections: 4 or 8 pin circular receptacle installed in 1/2″ conduit connection and internally wired to transmitter connections. Available in 2, 5 and 10 meter lengths (other lengths on request).
- Enclosure Rating: NEMA 4 (IP 65)
- Power: 18 to 36 VDC
- Optional Temperature Sensor: 3 wire RTD, 100 Ohm, Platinum, 0.06% accuracy. Built in to transducer shell for monitoring process temperature. Optional 8 pin electrical connector standardly supplied with this option.
Wetted Materials:
- Ultrasonic Transducers: ULTEM® Encapsulated
- Seals: EPDM, Buna-N, Neoprene™, FKM, or other
- Body Material: Schedule 40, epoxy coated, carbon steel pipe
Output:
- Frequency: output is an optically isolated NPN transistor capable of sinking up to 10 mA from a voltage source of no more than 48 VDC.
- Frequency output is from10 to 1200 pulses/gallon depending on range
