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Load cell is an electrical device which converts mechanical force into electrical signal. Load cells are used to measure forces and weight. With load cells one can measure tensile forces and compression forces. The load cell output is fed to a ADC (analog to digital converter) which in turn gives out digital output which can be calibrated to display the force in required unit.
Load cells can be broadly classified-
Based on mechanical construction
- Cantilever or Bending beam
- Compression
- Tensile
- Shear
- Torque
Based on electrical properties
- Resistive
- Piezoelectric
- Capacitance
- Analog
- Digital
- Wireless
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How do you calibrate digi weigh scale DW-100AX or fix errors such as F--H or ERR?
First make sure there is no possibility of interference. Make sure cellular and cordless phones are either off or far away. Things like electrical motors, wifi, and bluetooth can also cause interference. It really isn't that big of a deal, but you are calibrating your scale to make it more accurate so you might as well give it the best chance for optimum accuracy. Place the scale on a firm, level surface. While it is off, press and hold both the mode and the tare* keys at the same time and press the On/Off key. Release the keys and observe the display cycle through a series of numbers. Press the mode key once and observe the display "CAL 0" "100.00" then similar numbers as before. This step calibrates the scale without any weight on the platform. Next place your calibration weights on the scale. (In this case they are two 50gram bars) Press the mode key once more, it will either say pass or fail for your re-calibration. *Some scales use the same method without pressing the TARE button. The solution for many other scales is very much the same as this. It can help to fix or troubleshoot errors like F--H, error, and many others. If it shows 64018 that means the loadcells are overloaded and it need repaired. If you see 64018 or if you are still having troubles and you bought this scale on eBay from jeremywetch@yahoo.com or on digiweigh-scales.com website just email Jeremy directly within 30 days and he will exchange it for free. miker5099 wrote: I got a DW-100AS Digital Jewelry Scale from eBay, it just refused to work, got a replacement one, it also just put out the F__W alarm code. So I took it apart and discovered the loadcell screws were super tight, also the circuit board screws were very tight. One came back to life after the loadcell and circuit board were unscrewed, the other is still on F__W mode. So if your's is past the warranty, you may be able to revive it still. The loadcell screws are hidden behind the bar code sticker. The LCD cover sticker faceplate also hides three more screws. The remaining screws can be accessed only after the loadcell is loose -- caution don't damage the four wires going to the loadcell. These look to be a high quality item that was put together with one of those power screw drivers with way too much torque. Good Luck.
How sartorius scales work?
Sartorius scales work by converting the force of weight placed on the scale's weighing pan into an electrical signal. This signal is then amplified and converted into a digital display of mass or weight. Sartorius scales are highly accurate and precise, making them suitable for various laboratory and industrial applications.
