LEAKWISE ID-221 sensors excel in detecting thin layers of hydrocarbons on water surfaces in various environments prone to oil leaks. These advanced sensors not only detect the presence of oil but also monitor its accumulation, providing valuable oil layer thickness trend data. The ID-221 is widely utilized in the petroleum and electricity generation industries for early detection, warning, and control of oil leaks and spills. It’s particularly effective in wet sumps, storage tanks, and groundwater monitoring wells with a minimum water level of 30 cm (12.0 in). The sensor’s versatility extends to hydrocarbon detection and monitoring in oil/water separators, cooling water trenches, stormwater runoff systems, retention ponds, very deep sumps, and wastewater sewer networks.
A LEAKWISE system comprises a controller and one or more sensors. The ID-221 sensor features a high-frequency transmitter mounted on a float, designed to maintain precise positioning at the liquid/air interface, even with substantial liquid level fluctuations up to 45 m (150 ft).
The ID-221 boasts exceptional sensitivity, capable of reliably detecting oil layers as thin as 0.3 mm (0.01 in) without false alarms. It continuously monitors changes in oil layer thickness up to 25 mm (1.0 in), transmitting this 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-221 installations and is available as an optional accessory.
LEAKWISE ID-220 series 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 surface. 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 presence or accumulation of hydrocarbons. LEAKWISE sensors are engineered to detect and 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 sheen monitoring systems, allowing the indication of water level below the minimum required.
The ID-221 Oil Sheen Sensor is a highly sensitive and reliable device designed for detecting and monitoring separated hydrocarbon layers on water surfaces. It operates effectively in water depths from 30 cm to 45 m, adapting to significant level fluctuations. The sensor can detect oil layers as thin as 0.3 mm and monitor oil thickness up to 25 mm.
Key features include:
The ID-221 is constructed with hydrocarbon-resistant polymers and 316 stainless steel, ensuring durability in harsh environments. Its robust design, coupled with continuous self-diagnostics, makes it a reliable solution for long-term hydrocarbon monitoring in various industrial applications.
Detection Range: 0.3 – 25 mm (0.01 – 1.0 in) of separated hydrocarbon on water or brine
Water Level Variation: Minimum: 30 cm (~12 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 (3.4 in), height: 235 mm (9.3 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.
ID-221 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-221 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.
Detects thin layers of hydrocarbons in wet sumps, storage tanks, and groundwater wells. Ideal for early
Detects thin layers of hydrocarbons in wet sumps, storage tanks, and groundwater wells. Ideal for early
Detects thin layers of hydrocarbons in wet sumps, storage tanks, and groundwater wells. Ideal for early
Detects thin layers of hydrocarbons in wet sumps, storage tanks, and groundwater wells. Ideal for early
Detects thin layers of hydrocarbons in wet sumps, storage tanks, and groundwater wells. Ideal for early