The PS-220 Analog LEAKWISE Controller serves as both a power supply and signal processor, interfacing with a single LEAKWISE ID-220 Series Sensor. It reports hydrocarbon spill/leak alerts, including hydrocarbon layer buildup and thickness, through local and remote outputs. With its proven reliability, the PS-220 offers a cost-effective solution for basic monitoring systems. Its versatile power options allow for either AC or DC line powering.
The PS-220, paired with any LEAKWISE ID-220 Series Sensors, is typically used for oil spill/leak monitoring in various industrial settings. These include storage tank sumps, wastewater treatment discharge points, hydrocarbon pipeline pumping stations, hydroelectric and fossil fuel power plants, transformer substations, groundwater monitoring wells, and remediation sites.
The PS-220 provides a stabilized 12 VDC power supply to the sensor. It then filters and amplifies the current signal returned from the sensor. This processed signal is compared against two adjustable alarm set-points to determine the sensor’s status: Water, Oil, High-Oil, or Air, depending on the application.
The controller features two relay outputs with dry contacts for status reporting, and an additional fail-safe operated relay that alerts during sensor or power failures. A low-pass filter can be activated to prevent false alarms in turbulent water conditions. For enhanced monitoring, an optional 4-20 mA output reports oil layer thickness and trend, while an optional Bar-Graph provides visual representation of the oil layer thickness on the front panel, in addition to the standard status lights.
The PS-220 Analog Controller is a signal processor and power supply for a single LEAKWISE ID-220 Series Sensor.
Suitable for diverse industrial applications, the PS-220, together with a LEAKWISE sensor, offers reliable hydrocarbon leak detection and monitoring in both non-hazardous and hazardous environments.
Sensor Support: Single LEAKWISE ID-220 Series Sensor.
Enclosure: NEMA 4 (other enclosure options are available, see Enclosures and accessories).
Temperature: Ambient temperature range: -40 – 85 °C (-40 – 185 °F).
Cable length to Sensor: Up to 1,200 m (3,937 ft.) subject to hazardous area restrictions.
PS-220/RL/LI: Two alarm relays with dry contacts and one fail relay contact: SPDT rated 4A (3A for fail contact) at 250 VAC or 30 VDC, normally open and normally closed, and four status indication lights: Water, Oil, Air / High Oil and Fail. Includes built-in diagnostics.
Wiring Connections: Terminal blocks: 14 AWG maximum for sensor and 4-20 mA output wires; 12 AWG maximum for power and relays wires.
For hazardous areas:
North America – NEMA 7, Class I, Div 1, Groups B, C & D; NEMA 4
Europe ATEX & IECEx – II2(1)GD, Ex db [ia Ga] IIC T6 Gb IP66
Combined System: Approved for operation in hazardous locations when Zener Safety Barriers are added
Manufacturing: ISO 9001:2015 Certified