Oil in Water Monitor for Continuous Hydrocarbon Detection
Detect oil and hydrocarbon changes continuously, create meaningful alarms and protect water, treatment processes and plant assets.
ONLINE HYDROCARBON MONITORING
A Monitor Built Around The Process Decision
An oil-in-water monitor continuously checks a flowing water sample for fluorescent hydrocarbons. It reveals short events and gradual changes that an occasional grab sample can miss.
A dependable installation combines the analyser, representative sampling point, sample transport, flow, pressure, temperature, water background, calibration and a clear response to every alarm.
When Continuous Monitoring Is The Right Choice
Start with the operational decision. These three common requirements determine where continuous monitoring adds the most value.
01 / EARLY WARNING
Catch Short-Lived Oil Events
See leaks, cross-contamination and treatment upsets between scheduled grab samples, then investigate before the event spreads.
02 / PROCESS CONTROL
Trend Treatment Performance
Follow oil carryover through separation and treatment stages and check whether an operational adjustment produced the intended result.
03 / PLANT RESPONSE
Turn Readings Into Action
Connect a trusted signal to alarms, trending and plant control so operators know when to investigate, isolate or verify a stream.
Choose The Monitoring Route
Continuous monitoring and portable analysis answer different questions. Select the route around measurement frequency, location and the hydrocarbon target.
CONTINUOUS ONLINE
TD-120 Oil-In-Water Monitor
Continuous UV fluorescence measurement with a remote flow cell, touchscreen, configurable alarms and outputs for plant integration.
PORTABLE ANALYSIS
TD-550 And TD-560 Portable Analysers
Portable UV fluorescence analysis for field investigations, treatment checks, verification and measurements across several sampling points.
From Sample To Operator Action
The measurement chain is only useful when every stage supports a representative, repeatable result.
01
Deliver
Bring a representative flowing sample to the measurement cell within the agreed flow, pressure and temperature limits.
02
Excite
Ultraviolet light stimulates aromatic hydrocarbons in the water sample to produce fluorescence.
03
Measure
The optical response is converted through application calibration into a concentration or useful process trend.
04
Act
Display, trend and alarm the result so the operator has a defined response when the process changes.
Low ppb
Application-dependent detection capability
6,000 ppm
Published upper-range configuration
3 seconds
Default instrument response
4–20 mA
Plant output with optional HART
SPECIFICATION GUIDE
Specify The Complete Measurement
The best oil-in-water monitor is the one that produces a trusted signal and a clear operational response. PMA reviews the monitor together with the sampling and process requirement.
01
Target Oil
Identify crude oil, refined fuel, aromatic hydrocarbons or another defined target.
02
Measuring Range
Confirm normal background, alarm thresholds and maximum expected concentration.
03
Water Matrix
Review solids, turbidity, salinity, chemicals and background fluorescence.
04
Sample Path
Define the take-off point, transport time, conditioning, flow, pressure and temperature.
05
Calibration
Use representative standards or target oil and agree the reporting basis.
06
Outputs
Plan displays, data, alarms, fault handling and connection to plant control.
Where Oil-In-Water Monitoring Adds Value
Choose an application route for more specific sampling, alarm and product guidance.
PROCESS PROTECTION
Cooling Water And Heat Exchangers
Detect hydrocarbon changes that may indicate a leak or process crossover before contamination spreads.
TREATMENT CONTROL
Produced Water
Trend oil carryover through separation and treatment, investigate upsets and support discharge decisions.
WASTEWATER
Refinery And Petrochemical Streams
Monitor changes before treatment, reuse or discharge and protect downstream equipment from unexpected oil events.
Three Different Measurement Jobs
Oil in water, oil on water and laboratory reference analysis are related, but they are not interchangeable.
Oil In Water
Measures a response from hydrocarbons within a flowing water sample for trends, alarms and process decisions.
Oil On Water
Detects a floating surface film for gross spill warning. It does not provide the same in-stream measurement objective.
Laboratory Reference
Supports prescribed or accredited reporting. Online monitoring should be related to the site reference method where required.
Oil-In-Water Monitor Questions
Clear answers to the main questions raised during application review.
What Does An Oil-In-Water Monitor Measure?
It measures an optical response from fluorescent hydrocarbons in a flowing water sample and reports a calibrated concentration or trend. The response depends on the oil type, optical configuration, calibration and water matrix.
Monitor Or Analyser?
The terms are often used interchangeably. “Monitor” usually means continuous online measurement and alarms; “analyser” can also describe portable or laboratory-style sample measurement. “Oil in water analyzer” is the common US spelling.
Can One Calibration Be Used For Every Oil?
Not necessarily. Hydrocarbons can fluoresce differently, so representative calibration and an understood water background are important. Recheck the application when the oil or stream changes.
Does TD-120 Replace Compliance Testing?
Do not assume so. TD-120 supports operational monitoring, alarms and investigation. Any relationship to a prescribed laboratory method must be established for the application.
Continue Your Monitoring Research
Move directly to the product, application or measurement guide that matches your next decision.
Online Monitor Overview
Compare the online-monitoring route and how TD-120 fits.
UV Fluorescence
Understand the measurement principle, strengths and practical limits.
Portable Vs Online
Choose between grab-sample analysis and continuous monitoring.
TD-120 Product Page
Review the instrument features, ranges and installation details.
Specify The Right Oil-In-Water Monitor With PMA
Share the target hydrocarbon, expected range, water conditions, sample flow, temperature and pressure, alarm action and plant outputs.