The facility receives ammonia in bulk from tanker trucks and is dispensed into a storage tank. The PD9000 controller was installed and configured to display and monitor the readings from two sensors that detect ammonia gas leaks at the fill points on top of the storage tank.
Ammonia can be very toxic at high concentrations. Given ammonia is not flammable, a water deluge system is needed to dilute the concentration of ammonia in the area. The water deluge system changes the chemical properties by bonding it with water, and therefore, keeps the ammonia gas exposure at safe levels.
With the use of its relay and alarm capabilities, the PD9000 was configured to activate a warning alarm at 20 ppm and a high alarm at 45 ppm which engages the deluge system.
A 3-color light/horn
(PDA-LH3LC-RYG) was installed on top of the PD9000 for ample sound and visibility of the alarms. The light/horn is configured to flash the amber light at the 20 ppm to indicate a warning and flash the red light at 45 ppm to indicate a high concentration of the ammonia gas.
An additional alarm was configured to flash the amber light in case a sensor break has occurred.
In addition to external alarms, the ConsoliDator+ can display visual alarms on the screen with the use of color-changing channels to help draw operators’ attention to a potential hazard.