Currency Printing Ink Liquid Level Sensor

Currency Printing Ink Level Measurement


In 2015, US ink demand reached $4.8 billion, supported by shifts toward more environmentally friendly ink and digital ink. The earliest use of ink has been traced back to China where plants, animals and minerals were combined to produce inks. Today, ink is used in almost every industry and brick and mortar product with the most common applications being documents, signage, packages, labels, textiles and currency. From a level perspective, ink is difficult to measure because it coats and sticks on anything it comes into contact with over time. At this printing ink manufacturer that supplies specialized ink for US currency, an EchoPod ultrasonic level transmitter measures pearlescent pigments (that change color upon a currency being viewed at different angles) on a skid mixing tank. The non-contact sensor measures tank level while the batching and blending process is controlled by the PLC.