rev 2021.1.5.38258, The best answers are voted up and rise to the top, Electrical Engineering Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us, Thanks Andy. This averages (not adds) the signals from the individual cells, as indicated by R Drast above. Connect load cell. They are made of an insulating flexible backing with a metallic foil pattern. I am trying to get a measurable signal to amplify out of a load cells found in bathroom scales. Peter D Peter D. 121 1 1 gold badge 1 1 silver badge 4 4 bronze badges. Thanks again Andy - really appreciate the pointers. Your uP doesn't have to do any summing. http://www.controlweigh.com/loadcell_colors.htm I disconnected the 4 wires from the control board in the scale, so they would be available for the next step. The multimeter will register a change in voltage measured across the load cell’s output. Entrust your weighing tasks to the inventors of load cells. I bought a load sensor (SN-10245) with 3 wires (black, white, red) and I also bought the Load Cell Amp HX711 which need a 4 wires input. Access ultrasonic, optical, motion 4 wire load cell at Alibaba.com for tightened security and detection. Instead of processing each load cell output separately i connected the output together and gave to an ADC input. The easiest way to get a weigh reading from these to an Arduino is to use the HX711 amplifier module. 5 VOLTAGE REGULATORS LM78L05 LM79L05 (p/n LM78L05ACZFS-ND) (p/n LM320LZ-5.0-ND) POWER SWITCH Switch (DPDT) SW102-ND Double Pole Double Throw (DPDT) Alternatively, a DPST (Double … Call 08048759033 88% Response Rate. i purchased 4-wires load cell which sounds to me like a single 4-wire load cell. Manufacturer of Load Cell Cables - 4-Core Load Cell Cables, 4 core load cell cable offered by J.C.I. what weight does it show, and what weight should it say? Use a HX-711, those are calibrated fro grams, and it's easy to do a math conversion to ounces. If you want the four load cells to measure separate loads, use two HX711, or alternatively a 4-input ADC like the ADS1234. Hi, in my project I use 3 wire load cell (like this (3wire 50kg) but mine are purchased from ebay) and HX711 for weighing. As the … It has 4 wires (duh) including power + (sometimes referred to as excitation), power -, signal +, and signal -. How can I fill two or more adjacent spaces on a QO panel? TrustSEAL Verified. Tension link load cell: often used in crane and hoist weighing systems. Reply; Frederick 6-27-2019 at 21:59. 3 years ago. I think that it is possible to change my 3 wires load cell to a 4 wires by using a half bridge. How can you easily check whether a load cell is still operational? The resistance of a strain gauge changes when force is applied and the object is deformed along with the foil and this change will give … A 20Kg X 0.100g = 200 divisions, mean the displayed weight will be 0.00kg (for zero). These are commonly colored RED, BLK, WHT, GRN, and YLW. In bar strain gauge load cells, the cell is set up in a "Z" formations so that torque is applied to the bar and the four strain gauges on the cell will measure the bending distortion, two measuring compression and two tension. From the minds at http://arduinotronics.blogspot.com/, Since so many people were having problems with the INA125P, we now have a new and improved version that uses the Hx711 24bit ADC amplifier module. ?if possible let me know the manufacturing process too. how can i get the results to be read in grams or ounces? They are made of an insulating flexible backing with a metallic foil pattern. is one of the major suppliers of load cells, weighing indicators and accessories for the weighing and force measurement, with more than 25 years of experience in this field. In addition, we offer the right weighing electronics and matching accessories for your application. Load cell. According to Vishay Revere, they should be connected in parallel like this: -. Our load cells have set the standard for decades. Cables (India), New Delhi, Delhi. 470 4 wire load cell products are offered for sale by suppliers on Alibaba.com, of which sensors accounts for 3%, weighing scales accounts for 1%, and instrument parts & accessories accounts for 1%. Miniature load cell: similar to the load cell, but in smaller geometry. Why does nslookup -type=mx YAHOO.COMYAHOO.COMOO.COM return a valid mail exchanger? R REIFENG 10pcs 50kg Human Scale Load Cell Weighing Sensor Resistance Strain Half-bridge Sensor 34x34mm DIY Kit . You cannot connect them in series (to add the outputs for higher sensitivity) without having isolated power supplies for each individual cell - in other words, too much trouble. GEOKON, the world leader and manufacturer of Load Cells, also offers a custom design service for your geotechnical monitoring and engineering needs. I dont know if there is a connection problem or something else, i have even tried to do it through example VIs but it does not work either. J.C.I. Get it as soon as Mon, Jan 11. There is a wealth of data about 4 wire cells available, but these would cost about 8 times more to employ. How to write graph coordinates in German? Connecting is parallel averages. TrustSEAL Verified. If they are all sharing the same load, as in a typical electronic bathroom scale, just connect them all in parallel to one input. I do get the analog value to read zero, but when something is added to the bowl the analog value will not change why? The color codes vary between manufacturer and the coding is usually provided on the load cell’s calibration certificate. To learn more, see our tips on writing great answers. When should one recommend rejection of a manuscript versus major revisions? thanks a lot. I noticed this in the spec: excitation voltage 9 VDC – Maximum 12 VDCAlso How do you have the load cell mounted? SEND EMAIL. Wawa. I'm a Amateur Radio Operator (KK4HFJ). Supply a voltage of 5V or 9V DC at the excitation leads and place a test weight on the load cell. Hi, I am trying to acquire data from a 3133_0 - Micro Load Cell (0-5kg) - CZL635 . Adafruit Industries, Unique & fun DIY electronics and kits Strain Gauge Load Cell - 4 Wires - 10Kg ID: 4542 - A strain gauge is a type of electronic sensor used to measure force or strain (big surprise there). It's possible that load cell (4 wire?) The load cell must also be accurately wired to the HX711 to ensure that the appropriate strain gauge leads are used to approximate the weight given by the load cell. The SIWAREX R load cells are equipped with wire strain gauges (WSG). Description. 4 Wire Load Cell Wiring Diagram – wiring diagram is a simplified pleasing pictorial representation of an electrical circuit. The spring body is deformed elastically when a force is applied. Image courtesy of Amazon. The monitor suppliesavoltagecalledtheexcitationvoltagetotheloadcellandtheloadcellreturnsamillivolt(mV)signal back to … It will make my day. Can you create a catlike humanoid player character? Can you hide "bleeded area" in Print PDF? When these four strain gauges are set up in a wheatstone bridge formation, it is easy to accurately measure the small changes in resistance from the strain gauges. Thanks in advance. Did you make this project? (As above use an ohm meter to verify the wire connections of your parts.) Hi, I'm messing around with some load cells I pulled out of a bathroom scale and I noticed that these load cells have only 3 wires unlike the 4 wire load cells I have been reading about. GST No. Data Sheet: http://www.ti.com/lit/ds/symlink/ina125.pdf, // Arduino as load cell amplifier // by Christian Liljedahl // christian.liljedahl.dk // Load cells are linear. Is the Excitation Voltage of a load cell a strict specification? Would this application work with two HX711’s? Just putting them in parallel is correct. This particular load cell is commonly referred to as a straight bar load cell or a parallel beam load cell. Adafruit Industries, Unique & fun DIY electronics and kits Strain Gauge Load Cell - 4 Wires - 20Kg ID: 4543 - A strain gauge is a type of electronic sensor used to measure force or strain (big surprise there). On this load cell (from a Accuteck W-8260-86W Postal Scale) the 4 wires coming from the load cell are: Red: Excitation + White: Signal + Green: Signal - Black: Excitation - This matches the GSE / NCI / Sensotec wiring scheme.http://www.controlweigh.com/loadcell_colors.htmI disconnected the 4 wires from the control board in the scale, so they would be available for the next step. 99. How to Test a Load Cell . Cables (India) New Delhi, Delhi. The four wires coming out from the wheatstone bridge on the load cell are "usually": Some load cells might have slight variations in color coding such as blue instead of green or yellow instead of black or white if there are only four wires (meaning no wire used as an EMI buffer). How to Test a Load Cell . i.e Draw the complete circuit to make it clear. Next, we will explore calibration and test the load cell as a weighing scale. I want to measure weights between 0 and 25 Kg, but need the mechanical stability of four cells. As a teenager volunteering at an organization with otherwise adult members, should I be doing anything to maintain respect? The basic element is a special spring body. ie, if it was 2mv/V with a full scale of 2000lbf, then 4 loads cells would output 2mv/V with a full scale of 8000lbf. i got random data sir, how to calibrate hx711 with 5kg loadcell? MathJax reference. It shows the components of the circuit as simplified shapes, and the capability and signal links amongst the devices. Measures tension force only. Load pin: replaces pulleys and shivs, typically on cranes. To create a full bridge you want to connect at least two of these load cell parts to form a 4-wire connection: simulate this circuit. Supply a voltage of 5V or 9V DC at the excitation leads and place a test weight on the load cell. The wires to the top and bottom end of the bridge are the excitation (often labelled E+ and E−, or Ex+ and Ex−), the wires to its sides are the signal (labelled S+ and S−). Load cell wire colors It is important to know the wire color codes for a given load cell to ensure that they are properly connected for accurate results. How to determine if MacBook Pro has peaked? I would prefer to hook up 4 cells with one HX711, but it seems impossible with 4-wire cells. Brattain Member; Posts: 15,148; Karma: 1340 ; Re: Loadcells 3- or 4-wire #1 Feb 21, 2020, 10:22 am. Price: £ 3.50 / Stock: Sold out. B = 30 kg // Put on load A // read the analog value showing (this is analogvalA) // put on load B // read the analog value B // Enter you own analog values here float loadA = 10; // kg int analogvalA = 200; // analog reading taken with load A on the load cell float loadB = 30; // kg int analogvalB = 600; // analog reading taken with load B on the load cell // Upload the sketch again, and confirm, that the kilo-reading from the serial output now is correct, using your known loads float analogValueAverage = 0; // How often do we do readings? To test the monitor independently a load cell simulator will be required. Manufacturer of Load Cell Cables - 4-Core Load Cell Cables, 4 core load cell cable offered by J.C.I. The four wires coming out from the wheatstone bridge on the load cell are "usually": Some load cells might have slight variations in color coding such as blue instead of green or yellow instead of black or white if there are only four wires (meaning no wire used as an EMI buffer). I used arduino to power the hx711 circuit .My arduino was powered using USB cable.It shows 50 gms for 40 kg weight. How does Shutterstock keep getting my latest debit card number? The signals are averaged, but 'summing' is achieved by multiplying the mV/V to load force scaling factor by the number of load cells (assuming load cells are the same). The black wire of the Load cell has to be connected with the E- terminal of the HX711 board. Each color corresponds to the conventional color coding of load cells: Red (Excitation+ or VCC) Black (Excitation- or GND) White (Amplifier+, Signal+ or Output+) Green (A-, S- or O-) Yellow (Shield) Design & Consideration Load Cell and HX711 Connection: … How to improve the sensitivity of Cantilever type Load cell (4 wired) ? In addition, we offer the right weighing electronics and matching accessories for your application. I’d like to do a pair of scales for bilateral measurements. By definition, load cell is a type of force transducer.It converts an input mechanical force such as load, weight, tension, compression or pressure into another physical variable, in this case, into an electrical output signal that can be measured, converted and standardized.As the force applied to the sensor increases, the electrical signal changes proportionally. Also is important to define the division (or increments) that you trying to establish. What causes that "organic fade to black" effect in classic video games? sparkfun makes a load cell combiner board to setup 4 of the 3 wire load sensors in a Wheatstone bridge that will allow you to wire it to the HX711 in the same manner as the 4 wire load cell . It does not sum. The combinator takes four 3-wire load sensors and connects them as a wheatstone bridge, then the combinator connects to the amplifier. I want to measure weights between 0 and 25 Kg, but need the mechanical stability of four cells. torque meter, weight indicator, usb load cell, load cell display, load cell readout. 4 Wiring strain gages to load cell male connector Pin 4 Pin 3 Pin 2 Pin 1 SG1 SG2 SG3 SG4 Male connector Pin 4 Pin 3 Pin 2 Pin 1 Female connector Wiring amplifier to load cell female connector. Industrially we have up to 8 in parallel on some of our scales here, feeding a common amplifier. WSG load cells are transducers for converting mechanical forces into electrical signals. If I make it with 50 Kg cells (total weight possible=200 Kg), how small weight is measurable? Does anyone have any information on these types of load cells and maybe what wires are for what? The SIWAREX R load cells are equipped with wire strain gauges (WSG). Don't try and do that on the hardware side, do that on the software side. http://arduinotronics.blogspot.com/2015/06/arduino-hx711-digital-scale.html. Basic circuit: The Wheatstone bridge. The original only from Schenck Process. 3 Wire Load Cell Wiring Diagram Luxury Getting Started with Load Load Cell Junction Box Wiring Diagram Image Building electrical wiring representations show the approximate locations and also affiliations of receptacles, illumination, as well as permanent electrical solutions in a building. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The Model 4900 Vibrating Wire Load Cell consists of a cylinder of high-strength steel with 3, 4 or 6 vibrating wire strain gauges located around the circumference of the cell. The multimeter will register a change in voltage measured across the load cell’s output. The Load cell … I don't know. If I wish to use multiple load cells, can I simply connect their signal outputs together in series, then amplify that signal? How are Presidential candidates, who run for the party ticket in Primaries and Caucuses, shortlisted? Smart Load Cell Systems Buy Online or Call 800-344-3965 Adafruit Industries, Unique & fun DIY electronics and kits Strain Gauge Load Cell - 4 Wires - 1Kg ID: 4540 - A strain gauge is a type of electronic sensor used to measure force or strain (big surprise there). (say, 50% in a 2-cell scenario where force is evenly distributed). That is what you want to do; My goal was to create a programmable scale for weighing objects, parts counting, even directing product flow on a conveyor system. 4 wire Load cell :-This type of load cell used 4 wires, 1 pair for excitation and other pair is used for signal. Cables (India) New Delhi, Delhi. Load Cell. Cables (India), New Delhi, Delhi. It's important to select the correct load cell for the correct application. The load cell (4-wire device) is already a wheatstone bridge designed to be connected to an amplifier. it's in the directions, btu I have found the ina to be troublesome unless wired very carefully. arduino-mega c++ electricity analog-sampling. The functional principle is always the same despite different designs. How to explain why I am applying to a different PhD program without sounding rude? site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. J.C.I. The four wires of the load cell should be connected in the correct way otherwise this will not work. Four wire load cell connection Utilcell Four wire load cell connection UTILCELL, s.r.o. Please can I get the schematic to this project. Each wire has a name, both 4 wire and 6 wire load cells have +input, -input, +signal and –signal wires. They are made of an insulating flexible backing with a metallic foil pattern. Loads applied to the cell are measured by the vibrating wire strain gauges. I have a C series analog module (9219) connect to cRIO-9014. Allied Electronics & Automation is your distributor of choice. Because the force is distributed across the load cells - I would then only be detecting a fraction of the load? Why is it called 4-wire? Custom curve linearization also allows greater accuracy to be achieved with lower cost, less linear load cells. Why hasn't JPE formally retracted Emily Oster's article "Hepatitis B and the Case of the Missing Women" (2005)? If not can you show me how to. 07AAFPJ7469P1ZX. Podcast 301: What can you program in just one tweet? In bar strain gauge load cells, the cell is set up in a "Z" formations so that torque is applied to the bar and the four strain gauges on the cell will measure the bending distortion, two measuring compression and two tension. 4. // Step 1: Upload this sketch to your arduino board // You need two loads of well know weight. Connect load cell. Connecting them in parallel is what is normally done. So once you have established two data pairs, you can interpolate the rest. i am trying to get my fixed bowl that will be sitting on top of my load cell to be my zero points. if(millis() > time + timeBetweenReadings){ float load = analogToLoad(analogValueAverage); Serial.print("analogValue: ");Serial.println(analogValueAverage); Serial.print(" load: ");Serial.println(load,5); time = millis(); } } float analogToLoad(float analogval){ // using a custom map-function, because the standard arduino map function only uses int float load = mapfloat(analogval, analogvalA, analogvalB, loadA, loadB); return load; } float mapfloat(float x, float in_min, float in_max, float out_min, float out_max) { return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min; }, You'll now see data displayed in the Serial monitor, but it won't make much sense until you calibrate the scale. I've used plenty of L-cells and strain gauges but never in parallel. Full list of "special cases" during Bitcoin Script execution (p2sh, p2wsh, etc.)? To increase the output of the load cell so that the Arduino can read it on an analog input, we will need a INA125P amplifier and a 10 ohm resistor. 1.1Basic load cell system The basic load cell system consists of a 4 wire load cell connected to a load cell monitor. I am trying to make a weighing machine using load cells with a maximum capacity of 500 Kg.For this i made a rectangular platform with 4 load cells on each corner and i connected the +ve excitation to +5 v and the -ve excitation to GND. Summation has to be acheived by factoring the scaling from mV/V to load force by the number of load cells (ie multipling the average by the load cell count). Whether it is analog or digital load cells, single point load cells or bending beam load cells – it’s your choice! Making statements based on opinion; back them up with references or personal experience. Black wire to E-Green wire to A-White wire to A+ . Thanks for the help. On HX711 board you will find E+, E-, A+, A- and B+, B- connections. We´ll have a solution for any requirement. About: Professionally, I'm an IT Engineer (Executive Level) and Electronics Tech. Whether it is analog or digital load cells, single point load cells or bending beam load cells – it’s your choice! The load cell is quite sensitive and depending on the changing environment, calibration may be essential. Also from most specifications the Red wire is the "output". Its advertised rated output is 1±0.15mV/V. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. On HX711 board you will find E+, E-, A+, A- and B+, B- connections. Question Schematics are posted in the instructable. FREE Shipping on orders over $25 shipped by Amazon. If I make it with 50 Kg cells (total weight possible=200 Kg), how small weight is measurable? Red wire to E+. I bought a load sensor (SN-10245) with 3 wires (black, white, red) and I also bought the Load Cell Amp HX711 which need a 4 wires input. The excitation wires deliver an electrical current to the strain gauge (a type of resistor) in the load cell, typically between 5 and 10 volts. On this load cell (from a Accuteck W-8260-86W Postal Scale) the 4 wires coming from the load cell are: Red: Excitation + White: Signal + Green: Signal - Black: Excitation - This matches the GSE / NCI / Sensotec wiring scheme. A load cell is based on an electrical circuit called Wheatstone bridge. Being Vin the power supply of the bridge or input excitation (V=Volts) and Vout the output signal (mV=milivolts). The table below shows the theoretical signal measurements at zero and full load for a 2mV/V output load cell. How many three-wire load cells do you have? Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. 4 Wiring strain gages to load cell male connector Pin 4 Pin 3 Pin 2 Pin 1 SG1 SG2 SG3 SG4 Male connector Pin 4 Pin 3 Pin 2 Pin 1 Female connector Wiring amplifier to load cell female connector. A wide variety of 4 wire load cell options are available to you, such as pressure sensor, other. I want to use only one load cell, but I saw on Internet that these load cell need another load cell to work. Degraw - 4 pcs 50kg Load Cells and HX711 Combo Pack Kit | Load Cell Amplifier ADC Weight Sensor for Load Cell Arduino | Bathroom Scale kit. I am currently using a single beam cell, but I need the mechanical stability of a 4-point system - however I don't want to have to use 4 amplifiers and consume more data pins! Share it with us! Page 4 of 11 LOADAPP-1.0-1 EXCITATION + (Ex+) SIGNAL+ (S+) Most Load cell have four wires red, black, green and white. It only takes a minute to sign up. is one of the major suppliers of load cells, weighing indicators and accessories for the weighing and force measurement, with more than 25 years of experience in this field. It's important to define the zero (no load) and a full load calibration with a knowing weigh mass or object. When a load cell is in use, the cables will measure through resistance. will not work with the hx-711. I’d be curious how you would approach that!! The full-bridge cells come typically in four-wire configuration. Wiring color code diagram for Transducer Techniques Load Cells available online for download or viewing, come checkout other online services. I think that it is possible to change my 3 wires load cell to a 4 wires by using a half bridge. 4 Wire Load Cell Wiring Diagram. They are made of an insulating flexible backing with a metallic foil pattern. I would prefer to hook up 4 cells with one HX711, but it seems impossible with 4-wire cells. share | improve this question | follow | asked Nov 6 '15 at 21:24. Ring Torsion Load Cell RTN Our classic load cell: Very compact also for high capacities, extremely reliable as well as durable and very accurate in measuring results. Wire rope clamps: an assembly attached to a wire rope and measures its tension; commonly used in crane and hoist applications. long time = 0; // int timeBetweenReadings = 200; // We want a reading every 200 ms; void setup() { Serial.begin(9600); } void loop() { int analogValue = analogRead(0); // running average - We smooth the readings a little bit analogValueAverage = 0.99*analogValueAverage + 0.01*analogValue; // Is it time to print? Adafruit Industries, Unique & fun DIY electronics and kits Strain Gauge Load Cell - 4 Wires - 1Kg ID: 4540 - A strain gauge is a type of electronic sensor used to measure force or strain (big surprise there). Due to no nay compensation of cable resistance change effect. everything looks fine but i cannot see any signal when i display the signal in Labview. Tel +44 (0) 118 941 1387 / Fax +44 (0) 118 941 2004 sales@thames-side.co.uk / www.thames-side.com ** For load cells with a 6-core cable (including sense wires): +ve sense is and -ve sense is (except for T34D and T38) -T66 is available with 6 wires as standard, but a 4-wire version is available as an option.-For High Temperature versions of the standard load cells listed above, as well as Adafruit Strain Gauge Load Cell - 4 Wires - 20Kg. However, my last-day charts are like this (is loaded statically with 18kg). If you want the four load cells to measure separate loads, use two HX711, or alternatively a 4-input ADC like the ADS1234. I do I need to collect the separate signals from each cell, amplify each one, then process each one, and sum them? \$\begingroup\$ The signals are averaged, but 'summing' is achieved by multiplying the mV/V to load force scaling factor by the number of load cells (assuming load cells are the same). By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. Load Cell. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. How to set up load sensor in a full bridge with amplifier? Use MathJax to format equations. Four wire load cell connection Utilcell Four wire load cell connection UTILCELL, s.r.o. Follow the steps in the code for calibration, and you are now ready to use this scale, add additional features like buttons for zeroing tare weight, or controlling servos and relays for process control.http://arduinotronics.blogspot.com/2013/01/working-with-sainsmart-5v-relay-board.html. Most Load cell have four wires red, black, green and white. Are you using channel a or channel b, B is fixed amplification, A is programmable. These advanced 4 wire load cell are waterproof, and offer multi-feed. My wiring is like this (but i use Arduino mini pro 3V3): Apparently it should be a full-bridge circuit where the temperature is fully compensated and temperature changes are minimal. ie, if it was 2mv/V with a full scale of 2000lbf, then 4 loads cells would output 2mv/V with a full scale of 8000lbf \$\endgroup\$ – VoteCoffee Sep 20 '18 at 19:29 Load cells use a four-wire Wheatstone bridge configuration to connect to the HX711. Quantity: Add to cart Notify me. 60 readings/sec, 4 or 6 wire hookup. I lived off grid, with Solar (PV), Wind, and veggie oil fueled diesel generator power for 6 yea…, http://arduinotronics.blogspot.com/2015/06/arduino-hx711-digital-scale.html, http://www.controlweigh.com/loadcell_colors.htm, http://www.ti.com/lit/ds/symlink/ina125.pdf, http://arduinotronics.blogspot.com/2013/01/working-with-sainsmart-5v-relay-board.html, CheApR - Open Source Augmented Reality Smart Glasses, "High-Fivey" the Cardboard Micro:bit Robot. Call 08048759033 88% Response Rate. 2 years ago, i just.like to know how to make own load cell that can handle 10k kg load.? Reply You can buy relatively cheap four-wire load cells from Banggood, eBay, or Aliexpress. Load Cell Bolt Torque Values..... 1-23 Wind and Seismic Effects on Vessel Stability ..... 1-24. weight indicator, torque meter. Pneumatic load cell. Figure 4. Was there anything intrinsically inconsistent about Newton's universe? So it should!? The red wire of the Strain gauge or Load cell should be connected with the E+ pin of the HX711 break out board. Adafruit SKU: ADA4543. Just a note, you are summing the resistance changes by connecting in parallel my bowl weighs 0.147 kg and the analog reading i got is 96. i created a variable and set it to 96 and then subtracted analogValueAverage = analogvalA - variable. A 6 wire load cell will also have a +sense and a –sense wire which are sometimes referred to as +reference and –reference. Obtain the mV/V output figure from the load cell data supplied with the load cell and compare the signal changes seen with the theoretical values from the load cell data. The cell gives output even though im not pressuring the load cell. 4-Wire Load Cell CableThe most common type of load cell cable is the 4-wire type. Do Klingon women use their father's or mother's name? I want to use only one load cell, but I saw on Internet that these load cell need another load cell to work. Share this product. can you tell me how to do this? Stand on either end or in the middle of the board and you will get the same answer in each case. Wawa. @Adam I would imagine that sensitivity is reduced by n where n is the number of parallel loadcells but you ought to google this. what's the capacity of it? Weighing scale with 4 wire load cell is less stable. Such load cells are typically available in many rated loads (i.e., maximum loads); the one utilized in this project is rated for a maximum weight of 10kg (or 22 pounds).