Broken Bag Indicator, PBI-1 offered by Para Electronics, is suitable for Fluidized Air Bed Dryers used in Pharma and Chemical Industries.

PBI-1 works on tribo-electric principle. Current pulses generated due to the impact of powder leak, are sensed by the probe unit mounted in the exhaust duct .These input pulses are converted in to 4 to 20 mA output. The Readout unit displays the current value in % on a Bar Graph Display. 4 to 20 mA output and potential free Alarm Relay Contacts are available for PLC operations.

To avoid false alarms and to detect genuine broken bag, time delayed alarm circuit is incorporated in the readout unit. Delay time is adjustable between 7 to 70 seconds.