Wireless Load Cell

 This page shows you how you can connect a load cell wirelessly and use the data.

 Wireless Load Cell system with Low Cost 10″ tablet* as a large display.

Hardware

For a simple wireless system you need three things. A load cell, a wireless transmitter and a reciver. You can add a wireless transmitter to any of our load cells by selecting the wireless module from the “Output” list box (found on the actuall load cell product page). The wireless transmitter normally connects to the load cell via a short length of cable, and is mounted close by, or fitted to a bracket on the load cell mounting. The transmitter box contains 2 x AA batteries which provides power to both the load cell and transmitter. The load cell transmitter sends out a signal like a radio, so the signal can be picked up by one or many recivers. Example – you could view live readings on a handheld display (Amp-7) while walking around but also be logging them on an office PC (Wireless PC-USB). A crane operator and ground worker would both be able to see the weight of a load being lifted. Other Recivers can operate relays at set points (relay box) or produce analoge signals (0-10V) for other equiment (analouge box).

Miniature In Line USB module

 

 

 

USB Hub for Multiple Load Cells

 

 

Software

If you want to connect to a PC/Laptop/Tablet*, then you will need a wreless USB reciver. The USB reciver plugs directly into a USB** port on your device.  the free software will display live readings that can also be logged to a CSV file (max 100 load cells). The logged data can then be loaded into a spreadsheet (like Excel) to produce graphical reports etc. If you want to try the free software, you can download and install it now, and run it in “Demo” mode. The demo mode lets you see all the available settings without having to have a load cell connected. Also, if your device is connected to your network you will be able to access any logged data files from other PC’s on the network. The multichannel software can also display live calculated values alongside load cell data. eg the sum or difference of load cells, which is handy for balance applications, and fixed multipliers for displaying alternative units, or for pressure calculations (plus many more mathematical operators and functions).

More advanced users/programmers can take advantage of the DLL driver and create their own windows applications (Driver file comes with example source code programs). The modules can also be set up to produce a constant stream of ASCII values which is handy for interfacing with other terminal type programs/equipment.