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Questions tagged [flow-sensor]

Sensors which measure fluid flow.

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Ultrasonic flow sensor to measure water volume [closed]

I’m building a project which displays the total volume of water which has passed through a pipe. I want to use an ultrasonic flow transducer https://www.digikey.com.au/en/products/detail/audiowell-...
Joeblogs's user avatar
1 vote
3 answers
166 views

Measuring the volume of water without a flow meter

I have a weird technical issue I’m trying to solve. I need to measure the amount of water which flows through a hose. But I cannot use a flow meter due to compliance costs and budget restrictions mean ...
Joeblogs's user avatar
2 votes
1 answer
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Trying to use a flow meter to measure volume

I have a system thet consists of a pump to move the fluid and a solenoid valve to allow the liquid to pass through. I have a flow sensor that has the following characteristics: F = (2.5* Q), Q=L/Min ...
Fabián Romo's user avatar
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Need help regarding use of URA2415YMD-15WR3 DC to DC converter

I have a MFC from Horiba which uses +15 V, -15 V, and 0 V for its supply. I have not found any ready-made power supply for that, so I have bought a 24 VDC to 15 VDC converter (model: URA2415YMD-15WR3) ...
Dipenbaria41's user avatar
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1 answer
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How to read the VMZ 08 magnetic inductive flow sensor?

We are in a near-emergency situation where we must read a VMZ08BS1PEG24CV0 flow sensor. You may see more information including the datasheet here. ...
Foad's user avatar
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2 answers
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Can't find jack type for YFS201 sensor

The YFS201 sensor comes with a unique connector (male) type for which I can't find the suitable female. Can someone tell what connector this is? Image can be found in this link.
DribbleNibble's user avatar
-1 votes
1 answer
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How to control gas discharge rate? [closed]

I need to electronically control discharge of very small air volume over a reasonably large period. Something like discharging 33ml over 15 seconds. I have tried a needle prick hole but it discharges ...
tiktok's user avatar
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1 answer
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How to code process_state variable which reruns each time process commences?

I am making a bottle filling machine. I am using the YF-S201 water flow sensor to do the same and a 600ltr/min pump. While according to the sensor datasheet I should get the 750ml at 369 pulses, but ...
tiktok's user avatar
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1 vote
4 answers
314 views

How to make water flow sensor work to measure flowed water and not flow rate

I am using the YF-S201 water flow sensor. I am using this to fill up bottles. I need to know how to alter the below code in a way that instead of measuring flow rate it measures water passed through. <...
tiktok's user avatar
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-3 votes
1 answer
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How to hook up discrete ultrasonic sensor pair to Arduino board?

I have a pair of ultrasonic sensors, one of which is a transmitter and the other is a receiver. How do I hook them up to the Arduino board? The board is an Arduino Uno board and the sensors are ...
Aradhya Jain's user avatar
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1 answer
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Water flow sensor still active after water stops

I have a water flow sensor that uses a rotor with a Hall sensor (ATS177 SIP-3 Hall effect sensor latch). The problem is that the rotor keeps spinning for some time after the water flow stops. Video on ...
Erik Andershed's user avatar
1 vote
0 answers
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The object is to set off an alarm when the flow of water stops or drastically decreases using a Hall effect flow sensor

I have plumbed a flow sensor similar to this in the salt water line on my boat between the sea strainer and the suction pump for engine cooling over a 'salt to fresh water' heat exchanger. When the ...
proximitysensor123 's user avatar
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1 answer
677 views

Replace magnetic sensor - help identify 3-pin IC marked "W10" and "1095"

We have an instant gas hot water system that is not initiating. I've traced it to the water flow sensor not signalling when water is flowing. After inspecting the housing, the magnet is spinning ...
Jaans's user avatar
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Ultrasonic dual transmitter-receiver circuit

I am building an ultrasonic flow sensor, based on piezoelectric actuators from cheap HR-SR04 modules. I need to measure the speed of sound back and forth. Schematic like this is good to send pulses: ...
artsin's user avatar
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1 answer
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Does Hall flow sensor require an optocoupler when using STM32 MCU?

I'm using an STM32F103 to measure water flow through a pipe using Hall flow sensors. My power supply is 12V DC to 5V/3.3V DC. STM works with 3.3V and Hall sensors with 5V levels. I've configured the ...
Robert Sabljo's user avatar
2 votes
2 answers
295 views

Counting pulses in low power device

I have a mechanical water flowmeter with reed switch output and I connect it to my low power, battery powered device to count pulses. The reed switch is connected to my device via a 15 m long cable ...
Adam's user avatar
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3 answers
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Why is there a negative value on the scada when the analog input wire is disconnected from a field instrument?

I'm an apprentice electrician at an fmcg company. I've been seeing a trend recently, at the plant, where the scada actually reads a negative value instead of zero when a field device such as a ...
Ph3ng's user avatar
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2 answers
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Need help with a pulse/counter input circuit on Hall effect flow sensor

I am having trouble wiring a flow sensor to my pulse/encoder/counter card. I am using a Hall effect flow sensor that works fine when wired to a digital counter display. When I try to connect it to my ...
Steve's user avatar
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0 answers
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Simplest/cheapest way to measure furnace gas usage?

I want to use an Arduino to datalog the gas usage of my furnace. This isn't really an arduino question though, its more related to finding the best sensor/electronics to interface with the furnace. I ...
Paul Wieland's user avatar
1 vote
2 answers
417 views

Amplifying signal with Darlington not working

I'm relatively new to electronics and this is not my usual field of work. For a bigger project I need to read a flow sensor's (Biotech FCH-C-PA-N) output. The output needs to be processed by an ...
DeMo's user avatar
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3 answers
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What does this resistor do in this RTD wheatstone bridge?

The question is in bold at the bottom, the following is background. I am going to measure air flow with a hot wire anemometer using the FS7 sensor from Innovative Sensor Technology (IST). They ...
DavidG25's user avatar
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1 answer
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Hall Effect Flow sensor output characteristic [closed]

The cheap and convenient hall effect liquid flow sensors available for a few bucks online nearly all cite the device output as being a square pulse train whose frequency is a linear function of the ...
PAFMelb's user avatar
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1 vote
1 answer
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Hall effect flow meter; measuring total volume

I'm playing with this Hall effect flow meter from Adafruit. In the description it states: By counting the pulses from the output of the sensor, you can easily track fluid movement: each pulse is ...
The Naughty Otter's user avatar
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1 answer
482 views

measuring analog current output with beaglebone

I'm thinking about using a BeagleBone to measure the flow-rate of a fluid through a pipe. Here is a breakdown of the scenario: this flow sensor could be used from the doc, the output is a 4-20 mA ...
Troy Weber's user avatar
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1 answer
307 views

Arduino UNO sensor works fine when connected to laptop but gives problem when connected to external power supply [closed]

I have encountered problem with Arduino UNO and water flow sensor. So here's situation: I have connected a 12 V power supply from DC battery and then used 5 V regulator which output is used as input ...
Arman T's user avatar
-1 votes
2 answers
3k views

Water flow sensor

I want to use a water flow sensor to check the water flow in my laser cutter. I could find a lot of code for that but I can't understand the logic. I'm new to Arduino. This is what I understand so far ...
Athul's user avatar
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1 vote
2 answers
1k views

How can I convert a flow sensor's pwm output to logic level relay control?

I have a flow sensor with PWM output and I can't replace it with a flow switch due to mechanical restrictions. Is there any simple way to convert the PWM output to a logic / or analog signal and ...
Noob's user avatar
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1 vote
2 answers
2k views

SSR with low-flow switch to control heater

I'm trying to install a low-flow switch (circuit is open below 0.1 gal/min, closed above that) as a safety measure on an immersion heater, but I have some questions about the setup I've come up with (...
ryanDavid's user avatar
2 votes
3 answers
9k views

Ultrasonic Sensor to detect water flow

I am trying to build a small DIY kit that can detect water flow in a pipe using ultrasonic sensor. I have found Ultrasonic Distance Sensor but not Ultrasonic Flow Sensor. Would really appreciate any ...
user18197's user avatar
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2 votes
2 answers
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Miniature flow sensor for detecting breath movement

I've been looking around for a sensor that is capable of detecting the presence of a person's breath. It needs to fit inside a tube that a person will blow on. Detecting the force of the person's ...
josef.van.niekerk's user avatar
0 votes
1 answer
114 views

Eco-roof flow meter with "counter channel" output - what is that?

Some background: I'm working on an eco-roof flow monitoring project and we want to hook up a Unidata 6506G tipping bucket flow gauge (our effluent flow is in a strange low range range where we needed ...
Jammeth_Q's user avatar
4 votes
6 answers
5k views

Measure Water Flow in a Swimming Pool

I've got an inground swimming pool, and was inspired by an ill-formed question that was recently posted. I would like to non-invasively measure the volume of water my pump is circulating through the ...
vicatcu's user avatar
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