The ID-225 measures oil sheen thickness as low as 1.0 mm.

Leakwise ID-225 Specifications

The Leakwise ID-225 is a floating detector capable of monitoring the thickness of hydrocarbons and other organic solvents on water. Specifications include:

ID-225 Operating Range
ID-225/100 1–100 mm (0.04–4.0 in) of hydrocarbon on water or brine (linearly measured)
ID-225/200 1–200 mm (0.04–8.0 in) of hydrocarbon on water or brine (linearly measured
Resolution 1 mm (0.04 in) of hydrocarbon on water or brine
Water Level Variation Minimum: 30 cm (12.0 in) (33 cm for ID-225/200) 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
Temperature 0–70° C (32–158° F), higher temperature available
ID-225 Physical Specifications
Materials

Hydrocarbon resistant polymers, 316 stainless steel
ID-225/100 Diameter: 87 mm (3.4 in), height 150 mm (5.9 in), fits into 96 mm (4.0 in) stilling well
ID-225/200 Diameter: 87 mm (3.4 in), height 300 mm (11.8 in), fits into 96 mm (4.0 in) stilling well
Cable 10 m (~33 ft) supplied with sensor; additional length to order up to 45 m (~150 ft) total
PS-220 Controller Specifications
PS-220 Description The PS-220 Controller is an analog signal processor and power supply in a NEMA enclosure that comes standard with the ID-225.
Temperature Ambient temperature range: -40–85° C (-40–185° F)
Cable distance to PS-220 Up to 1,200 m (3,937 ft) subject to hazardous area restrictions
PS-220/RL/LI Two alarm relay contacts and one fail contact: SPDT rated 4A (3A for fail contact) at 250 VAC or 30 VDC, normally open and normally closed, and four indicating lights: Air/Oil/Water/Fail.  Includes built-in diagnostics feature.
Wiring Connections 14 AWG maximum for sensor and 4-20 mA output wires; 12 AWG maximum for power and relays wires
PS-220 Controller Options
Enclosure Options

NEMA 4X (IP-65): 300 x 190 x 120 mm (12.0 x 7.5 x 4.7 in) (standard enclosure); NEMA 7: 278 x 259 x 166 mm (11.0 x 10.2 x 6.5 in); EEx d: 302 x 233 x 154 mm  (12.0 x 9.2 x 6.1 in)
Input Power Options 220/110 VAC, 9–36 VDC (@ 5 Watts), may also be solar powered
PS-220 420 4–20 mA signal proportional to hydrocarbon thickness up to 25 mm (1.0 in)—current source
PS-220 420/BG Bar graph display (20 bars) of hydrocarbon thickness and 4-20 mA output
AUD Audio alarm option (available in weather- or explosion-proof enclosure)
Other Controllers
WSP-220 Wireless communication (consult factory for more details)
DSP-220 Digital Signal Processor for Multiple ID-220 Series (8 standard, up to 40 optional)
Sensor Control with various output options, including: relays, lights, 4-20 mA and RS-232 or RS-422 communications (consult factory for more details)
Sensor and Controller Certifications
ID-225 Sensor Intrinsically Safe — EEx ia IIC T4
PS-220 Enclosure For hazardous areas: North America — NEMA 7, Class I, Div 1, Groups B, C & D; NEMA 4
Europe — ATEX EEx d IIC T6 IP66
Combined System Performance Approved for operation in hazardous location
EPA — Conforms to EPA/530/UST-90-009 for groundwater monitoring systems  
TÜV — Type approval in accordance with WHG (Water Resources Law) § 19 h
Manufacturing ISO 9001 Certified
Safety CE Certified

Note: Specifications subject to change without prior notice.