Select a temperature controller and power relay, to be used to control a heater

$30-250 USD

Closed

Posted

over 3 years ago

$30-250 USD

Paid on delivery

I need a qualified industrial controls or electrical engineer to tell me the right way to do this. I don't need detailed drawings or renderings or anything, just a specification of the correct off-the-shelf parts that I can order and hand to an electrician to wire together. I have a large (750 L) saltwater aquarium heated with an inline heater in the water circulation system. The heater's built-in analog thermostat in the is not accurate or adjustable enough for our needs (we need +/- 0.1 C at 35 C). I'd like to supersede it by wiring a power relay in series with the heater's power supply, and use that to turn the heater on and off as required. I believe it's possible to connect the 12 V control signal from a cheap off-the-shelf thermo controller, like for instance an Inkbird Inkbird ITC-1000. What I don't know is if there are other parts required or features I need to worry about (I think I want a non-latching relay, for instance, but I'm at the limit of my knowledge here). The heater operates at 240 V, 30 A, so fairly beefy relay is required, and I don't want to mess around with that kind of current. Also I am not sure if additional control circuitry is required. The heater operates in a damp environment, and I am not sure if that adds additional requirements. What I want is a list of certified parts that I can order off-the-shelf in the USA, and a circuit diagram to hand to the electrician who puts it together for me. The heater model is: Coates 6ILS, [login to view URL] Please respond with your qualifications, and confirm your understanding of what the work product will be.

Electrical Engineering

Electronics

Engineering

Circuit Design

Industrial Engineering

Project ID: 27381708

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Active 3 yrs ago

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25 freelancers are bidding on average $140 USD for this job

@binyameen441

Hello, thank you for your job posting. I read your description about--temprature controller I am a senior electrical engineer. I have plenty of experience in firmware development and micro-controller developments. I can write the firmware based on Arduino, Raspberry Pi, Pic, Atmega, FPGA, ARM, DSP, PLC and so on. And I can design the circuit by the Altium, Eagle, KiCAD, Allegro & OrCAD, PADs. I provide the services - Gerber files, Netlist generation, BOM generation and 3D Models of PCAD and ECAD. I am also good at AutoCAD, Solidworks. And I can simulate all circuits with Proteus, LT-spice, Matlab, Simulink, Multisim, and Labview as well. Due to my experience in firmware development, I will bring you the perfect result in time with high quality. I will also give you a detailed explanation of the process. Looking forward to hearing from you soon Thanks

$30 USD in 1 day

5.0

(114 reviews)

6.4

@avigupta0061

Best Electrical Engineer Expert at your doorstep! Dear Client, I couldn’t stop myself from bidding after going through the description as they are an exact match with my skillset and experience. I have experience in temperature controller and power relay based PCB design and know all the intricacies required to get the job done with perfection. With more than 5 Years of experience in PCB Design and Circuit Design in Altium, I can ensure you best quality work and before time delivery. Following is a brief list of expertise that I am carrying: 1. IOT products development 2. Microcontrollers based circuit design – STM32, STM8S etc 3. Smart Products like Smart watch - GSM/GPRS/GPS etc 4. Wireless Products - BLE/WiFi- ESP32/ESP8266/NRF24L01 5. Low Power Battery Products design – Rechargeable and Non chargeable 6. Power Electronics – Buck, Boost, Flyback etc 7. Saltwater, water circulation, Thermo controller, Please answer the following questions: 1. What are your future plans with this project? 2. Are there any specific market standards like CISPER you are aiming? 3. What will be ambient temperature of this product? 4. Are there any other specific requirements besides the ones you mentioned Let’s have a quick discussion for 5 mins where I would formulate a plan of action of how we shall take this project to the horizons of success. Regards Pratibha(Nickname -Avi) Quality is never an Accident

$180 USD in 2 days

5.0

(16 reviews)

6.0

@Andrii0125

Hi. I have read your project description very carefully and I understand what you need. I think I can help you with your components selection and guidance. Please let me discuss about your project in detail. Best regards, Andrii.

$200 USD in 2 days

4.9

(20 reviews)

5.5

@arifbilal75

Greetings! I’m very much interested to your project description about--- I have a degree in Electrical Engineering over 5 years of experience, therefore, I can easily do this job. You can message me to discuss the details. Why me? My goal is to offer services to you that are profitable. I don’t want you to place an order once and that’s it. For me to be successful, I need you to come back and order again. Give me the opportunity to work on your project. I wish to build a long-term relationship with you. We can have further discussion in chat. Thanks! you can visit my freelancer profile to check the reviews of related tasks https://www.freelancer.com/u/arifbilal75 Warm Regards: BIlal

$140 USD in 7 days

5.0

(29 reviews)

4.5

@AustraliaMech3D

Hi, I can specify the components and wiring diagram , it will be a standard PID digital controller with thermo couple and high current solid state Relay. All the components are off the shelf and industry standard used in many applications. It will provide great temperature control, it has an LCD interface ,you can set the temperature and other parameters. i will provide you with part numbers,supplier links and wiring schematic. Its easy to do and is industry standard setup. Please message me to discuss details

$250 USD in 7 days

5.0

(5 reviews)

4.4

@hemedmechanical

Hi there, you definitely need a custom thermostat and I will help you accomplish that I will design a heater controller that can be powered from a 12Vdc ( or 5Vdc) supply I am going to pick a waterproof temperature sensor model: DS18B20 that gives +/- 0.5 C accuracy ( -10°C to +85°C ), we can hardly get a +/- 0.1 C that you need and yes there are bunch of power relays capable of withstanding 30A, I will help you pick one too I will design a Bluetooth based app that to let you interact with you aquarium system to control heater on/off, or adjust set point for the controller I will make the best custom controller, just send me a message so we can chat more

$200 USD in 7 days

5.0

(12 reviews)

4.0

@HarimohanG

Dear Client, I have read and understood your requirements and could do it for you in the least time and utmost superior quality. I have experience in electrical engineer and could design it for you as per your requirements. I am having more than 15 years of experience in PCB Design, Circuit Design, Circuit simulation, IOT products development and building electronic products. The expertise of mine is in the following fields: 1. Wireless Products – BLE, Wifi, NFC, LoRa etc 2. Power Electronics- Buck, Boost, Flyback, Half Bridge etc 3. IOT sensors interfacing – Pressure, Temperature, Moisture, PH etc. 4. Microcontrollers- ESP32, STM32, STM8S, RL78 etc. 5. GSM, GPS, GPRS 6. 750 L, Power Supply, Aquarium heat After reading your project details, I have certain queries and suggestions: 1. What is the application of this product? 2. What will be ambient temperature of this product? 3. What are the mechanical constraints to be taken care of? 4. What are the standards that the product would be complying to? 5. What are the user protections required for this project? Please try to answer these questions based on which I would be providing free of cost consultation. I am new to this site but I am an expert in electronics product development. Please message me so that I can formulate a success plan for this project. Waiting for your reply, Regards Hari Mohan Engineering for one is a magic for others

$140 USD in 2 days

5.0

(1 review)

4.2

@macroenergy

General message: Dear Sir, Greetings from Turkey. I hope you are good. Let me introduce me. I'm Electronics Enginner who have 19 year experience. My experience is related to power electronics, hardware design, analog design, PCB design and microcontroller coding. My projects summary is attached. Please look them. If you look them you will see that I'm ideal person who can make your project without any problem. Some examples are attached. It shows my ability to make your project. Any questions you can ask me. We can talk details of your project by using SKYPe and Whatsapp. Please give me your SKYPE and mobile phone number. My SKYPE: makinmakin35 I can agree budget which you can pay. Please tell me your expected budget. Please give me your project. I promise that I will give good solution. Please respond to me. I hope you will select me. Have a good time Cheers Metin

$75 USD in 3 days

4.7

(8 reviews)

4.1

@ExpertSoul

I have read your project description. I got your point as I'm well versed with "temperature controller and power relay, to be used to control a heater" I can do this project for you perfectly. I still have a few questions. please leave a message on my chat so we can discuss the budget and deadline of the project. Thanks.

$200 USD in 3 days

5.0

(7 reviews)

3.7

@Adeel2k14

Hope you are fine. I have understood the project description, i am 100% sure i can complete your task. I have experience in solving various electrical problems. Moreover i have the expertise in the following mentioned software. 1- MATLAB 2- Proteus 3- Arduino 4- MPLAB 5- AutoCAD 6- Xilinix 7- Altium 8- LTSpice 9- PSpice Allow me to demonstrate my expertise in order to solve your problem. Regards

$50 USD in 7 days

4.8

(6 reviews)

3.9

@z1905z

Hello, I am an Electrical and Electronics Engineer and I completed my master's degree. I designed many electronic circuits and I have academic publications on this subject. You can also see it from my portfolio. I have worked with many types of sensors. I can do this project using a microcontroller. I can prepare the necessary design and software. I always guarantee free support if there is any problem when the project is over. We can proceed more easily by speaking. The programs I use regularly: >> Matlab / Simulink, Python, C++, C#, Arduino, ESP, PIC, >> Altium Designer, Proteus, >> Multisim, LTSpice, LabVIEW, SIMPLIS, Tanner Tools, TINA-TI, >> SolidWorks, DesignSpark I work professionally. Thanks :)

$200 USD in 9 days

4.6

(8 reviews)

3.4

@dbasu01

Hello, I am an Electrical Engineer with 30 years’ experience of Customized Product Development for Instrumentation and Control applications. I am based in Kolkata (India) and running a business in the name of "Zetek Systems". I have a good hardware setup and a team for fabrication and testing. From my experience I can tell you that it is very difficult (almost impossible) to control the temperature of that volume of water so accurately with ON/OFF control through relay/ contactor. You have to deploy more precision control. Looking for your valued reply. Regards - Debasis Basu

$250 USD in 15 days

5.0

(1 review)

3.1

@DamianLP

Hello, I am electronics engineer with experience in automation systems. I have read your project. In this type of projects that require drive high AC loads I always use professional components like magnetic TeSys contactors from Schneider Electric (I have one of them in my hand, I can send you a photo, it is dear but very reliable), if you need control the heater you can connect the ITC-1000 output to this type of contactors. Please, contact me on chat for details, I could send you the wiring diagram of the power system but I need to know every specification. Thank you

$50 USD in 1 day

4.9

(3 reviews)

2.4

@sujoy0

This should be a relatively straightforward case with the aux contacts of InkBird ITC-1000 driving a power relay or a contactor to drive your 6kW heater. For humidity, it is best to enclose the entire thing in a sealed enclosure so that the worst of the humidity stays out. These devices are usually rated to operate at high humidity >90% as long as it is non condensing. Condensation can lead to phase to phase short circuit. I don't think that this is going to take too long so I have quoted for 2 hours of work @ $40 USD an hour. I will select a relay/contactor for you and share some hand drawn wiring sketches on how they should be connected. I presume that you will take care of the ITC-1000 setting on your own. I've worked for 10 years in industrial Electrical systems and such work was fairly routine. The only concern is that the ABB or Siemens relays/contactors that I have worked with may not be easily available or cost effective for you so we'll have to find alternative makes. Regards, Sujoy

$80 USD in 7 days

5.0

(1 review)

1.1

@StevenMHook

I have many years of experience in automation and controls. I have worked with PID systems many times and would be able to help you quickly with your project.

$50 USD in 1 day

0.0

(0 reviews)

0.0

@vikramec08

Hi ,I m vijender having experience of 10year in electronics and having design experience on water heter controller, whirlpool and spa . the water heater we developed was 25 to 50 liter model with a load capacity of 2 to 7k watt . the accuracy will depend on the sensor and we have to develop calibration mechanism as temperature sensor out put not linear as per temperature so normal reading method always creat problem . we can go with normal relay if that can support such current as always need to select any component 4 to 5 over rated to avoid any in rush current handling issue .so 50 to 60 amp relay will work but need to find part for same . as for such current you will get latch relay . we can discuss more once you allow to work .

$222 USD in 15 days

5.0

(1 review)

0.0

@angeldariel98

Greetings, From what you said on the description of the project, your need consist in controlling the heater depending on the real temperature of the aquarium. I am an Industrial Electronics Technician and an Electrical Engineer with knowledge of instrumentation, electronics and control systems design (PLC, HMI, PCB). That being said, I can use those knowledges to give you a very fair solution to your needs. I work with Altium Designer, Proteus, Autocad Electrical and others. I've done Allen Bradley, Schneider Electric, G-Soft, Zelio Soft and AutomationDirect's PLC programming, as well as HMIs. I already know some of the parts that you will need to succeed and i will give you any explanation needed from you to get this done, so feel free to get in contact as soon as you wish. Regards.

$150 USD in 3 days

0.0

(0 reviews)

0.0

@engmhsaada

I can specify the right components for you , I am Professional Electrical Engineer with 10 years experience in selection and specifications of such components .

$35 USD in 1 day

0.0

(0 reviews)

0.0

@EvolverV

Hi. I have a lot of experience in upgrading various equipment. According to your task, I know an effective and inexpensive way to implement this work. Although it will require you to tweak the pipes (temperature sensor installation) and time to fine tune the regulator. The regulator you have chosen can’t be used to solve this problem, since its Measuring Accuracy ± 1 oC. Not to be confused with Resolution 0.1 oC To implement the project can use parts from Amazon or Aliexpress.

$50 USD in 2 days

0.0

(0 reviews)

0.0

@missales17

I am Control and Instrumentation Engineer. I had more than 10 years experience in preparation of technical specifications for Control and Instrumentation systems. This type controllers I am already dealing in Power plants and water treatment plants.

$160 USD in 3 days