Computerising an electrodeposition lab
A
Biodata product story
Edited by the Laboratorytalk editorial team
Feb 13, 2002
When the University of Central England wanted to fully computerise its electrodeposition laboratory, it chose a comprehensive system to improve data keeping and safety
The electrodeposition laboratory at the University of Central England contains 11 tanks of solution, and many parameters need to be measured and controlled in each of these tanks.
It turned to Biodata for a system that improved the quality of results, kept comprehensive records of all data and events, and increased safety in the laboratory.
During electroplating or electroforming, a layer of metal is deposited onto an object: positive metallic ions are attracted to a negatively charged object.
For optimum results strict regulation of current density is needed, which is now provided by computer control.
Voltage, temperature and level are all measured and appropriate action taken if safe levels crossed.
All the motors, stirrers, agitators, probes, etc are monitored and controlled throughout the processes.
If a vital piece of equipment in a tank fails, that tank is completely shut down.
The chemicals used in the deposition process need replacing at regular intervals.
The computerised system calculates when and automatically applies the correct dose.
Each tank has up to three dosing pumps containing different solutions.
Crucial safety features include maintaining and monitoring ventilation - very important because of potential cyanide fumes; automatically checking that all the necessary equipment is in place and properly connected; and shutting down equipment that is overheating; The equipment in each tank can also be controlled manually, through either a panel of switches or a software touch screen.
The computer will not, however, let people perform any actions that could be dangerous.
So you could not, say, switch a heater on if the level of liquid in the tank was too low.
As well as controlling the laboratory, the system displays and logs data.
Staff can see current data, or historical progress charts.
Information about the entire laboratory can be seen or about individual tanks and equipment.
Records are kept of all processes, including information about any tasks performed manually, any alarm conditions that occurred and the steps taken to remedy the situation.
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