The Differential Pressure Alarm Indicator system measures the pressure difference between the two points. It gives Red LED Indication with audio buzzer when pressure is below or above set values. It measures in mm of water column (WC).
In normal condition, when the measured differential pressure is in the range, the Green colour LED glows in the indicator. When the measured differential pressure is greater than the range, “Red colour” led glows in the indicator and audio “Buzzer is ON”. Similarly, when the measured differential pressure is less than the range, the “Red colour” led Glows in the indicator audio “Buzzer is ON”. When an operator acknowledges the alarm, in the indicator Keypad, the “Buzzer will be OFF”. The Red Colour will Change when the Pressure recovers to defined range.
