This company has re-released the GD 500 adhesive volume sensor to monitor glue volume in corrugated applications. The new version uses a pair of sensors to assess the volume of liquid adhesive dispensed onto a corrugated board.
The GD 500 sensor uses an easy-to-use LCD display and keypad interface to simplify setup and changeovers. A calibration process can automatically learn the desired adhesive profile. Adjustable thresholds for either too much or too little glue can be defined.