The LEAKWISE ID-225/200 sensor is designed for continuous measurement of varying hydrocarbon layers on water surfaces, specifically targeting locations where oil leaks accumulate and are cleaned. This advanced sensor provides real-time trends of oil layer thickness, making it invaluable for petroleum and power companies in monitoring and controlling accumulated thick oil layers.
A LEAKWISE system comprises a controller and one or more sensors. The ID-225/200 sensor features a high-frequency transmitter mounted on a float that maintains its position precisely at the liquid/air interface, despite fluctuations in liquid level up to 45 m (150 ft.), with a minimum water level requirement of 33 cm (13 in). The oil layer measurement is linear at the sensor level, providing reliable and repeatable readings across its range.
The ID-225/200 is designed to measure oil layers from 1 to 200 mm (0.04 to 8.0 in) thick, offering reliable and repeatable in tracking of oil accumulation. It continuously monitors changes in oil layer thickness, transmitting this online data via a 4-20 mA output signal from the controller. The system utilizes controller relays for both local and remote alarm and control functions.
Built-in diagnostics continuously monitor sensor operation, ensuring reliable performance. For more complex installations, the SLC-220 digital controller can manage up to four sensors simultaneously. To optimize performance, a stilling well is recommended for all ID-225/200 installations and is available as an optional accessory.
The ID-225/200 is specifically designed for environments where reliable measurement of thick oil layers is crucial, making it ideal for applications in remediation control, skim tanks, oil/water separators, and wastewater monitoring systems.
LEAKWISE ID-225/200 sensors employ advanced high-frequency Electromagnetic Absorption technique. Each floating sensor contains high-frequency electromagnetic energy transmitting and receiving antennas that provide continuous monitoring of the liquid volume around the sensor. This technology exploits the principle that water absorbs more electromagnetic energy than hydrocarbons. Consequently, changes in the water’s absorption rate at the top layer indicate the accumulation of hydrocarbons. LEAKWISE ID-225/200 sensors are engineered to monitor the buildup of both separated and emulsified non-soluble hydrocarbons on water and other aqueous solutions.
A unique feature of these sensors is their ability to differentiate between wet and dry sump conditions, a capability unmatched by other oil monitoring systems, allowing the indication of water level below the minimum required.
It offers:
With a compact design (87 mm diameter, 384 mm height) and durable construction, the ID-225/200 is ideal for long-term monitoring in various industrial applications requiring reliable measurement of thicker oil layers.
Oil Monitoring Range: 1 – 200 mm (0.04 – 8.0 in)
Resolution: 1 mm (0.04 in)
Water Level Variation: Minimum: 33 cm (~ 13 in) above well/tank/sump bottom.
Maximum: 45 m (~150 ft.).
Water Lateral Velocity: ~20 cm/sec (~8 in/sec) when installed in a stilling well
Water Temperature: 0 – 70 °C (32 – 158 °F); no freezing
Air Temperature: -10 – 80 °C (14 – 176 °F)
Materials: Hydrocarbon resistant polymers (Polypropylene, Acetal, Polyurethane), 316 stainless steel.
Diameter: 87 mm (3.43 in), height: 384 mm (15.1 in); fits into 100 mm (4.0 in) stilling wells.
Integral Cable: 10 m (~33 ft.) supplied with sensor, additional length to order up to 50 m (164 ft.) total.
Stilling well in 1 m and 2 m long sections, which can be assembled to any required length.
Sensor and PS-220 Controller Certifications
ID-225 Sensor : ATEX Intrinsically Safe: II1G Ex ia IIC T4 Ga -40 °C to +70 °C. Also: IECEx, UKEX and cETLus
PS-220 Enclosure For hazardous areas:
Combined System: Approved for operation in hazardous locations when Zener Safety Barriers are added
Performance: EPA – Conforms to Spill Prevention, Control and Countermeasure (SPCC) – Oil Pollution Prevention regulation (40 CFR part 112), and EPA/530/UST-90/009 – Leak Detection Methods
Manufacturing: ISO 9001:2015 Certified
PS-220 Description: PS-220 Controller is an analog signal processor and power supply in a NEMA 4 enclosure that supports a single ID-225/200 sensor.
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 and cable type.
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.
Enclosure Options:
Input Power Options: 220 or 110 VAC (50 – 60 Hz) or 9 – 36 VDC (@ 5 Watts); may also be solar powered.
/420: 4-20 mA analog output proportional to hydrocarbon thickness up to 25 mm (1.0 in), current source, not isolated.
/420/BG: Bar-Graph display (20 bars) of hydrocarbon thickness in addition to 4-20 mA analog output.
/CEN: Zener Safety Barriers to allow installation of the sensor in hazardous areas.
/AUD: Audio alarm option (available in weather-proof or explosion-proof enclosure)
SLC-220: Digital Signal Processor for up to four ID-220 Series sensors support, with various output options, including relays, lights, 4-20 mA, LCD, Modbus communication in RS-232 and RS-485, and remote cellular connectivity.