When using the SmartDispenser® it is necessary to verify that the volume dispensed is the volume that was requested. Each SmartDispenser® is designed to communicate with an A & D Company’s AD4212B Analytical Weighing Sensor. The administrator may activate the weighing sensor option in the administration section of the SmartDispenser® and it may be used in line during production or set up as a calibration station in the quality control department.
To verify that the dispense volume is correct, follow these SmartDispenser® closed-loop verification steps:
1. Perform a capabilities test
Before installing a SmartDispenser® perform a capabilities test by dispensing a full syringe reservoir onto the weighing sensor. The weighing sensors automatically record all weight data to a file located on the SmartDispenser’s® hard drive.
2. Download the production report
Via USB memory stick or local network, import the production report into Excel, calculate the mean and standard deviation. The mean is your Target Weight and the standard deviation, calculated into a percentage, is your +/- tolerance.
3. Input the Target Weight and tolerance into the SmartDispenser® GUI interface
The SmartDispenser® will compare the actual weight dispensed to +/- tolerance after each dispense and, if out of tolerance, a warning message will appear on screen and need to be cleared before the SmartDispenser® returns to operation. All weights and weight stoppage are automatically recorded to an Excel .CSV file for post-production analysis.
The SmartDispenser® can revolutionize your dispensing process. For more information about the closed-loop verification process, please contact Fishman Corporation.