The Multisensor MS1200-S is an online oil-in-water and VOC analyzer that detects hydrocarbons and volatile organic compounds in water from 1 ppb to 3000 ppb. It is designed as an early warning system for drinking water intakes, boreholes and process water, and it measures without touching the water and without reagents. Akan Industrial and Automation is the Multisensor Systems dealer in Türkiye and supplies, installs and commissions the MS1200-S.
How does the MS1200-S work?
The analyzer uses contactless headspace sensing based on Henry’s law. Water flows continuously through a 316 stainless steel sampling tank. Volatile compounds and water vapour move from the water into the air space above it until they reach equilibrium; a sample of this headspace gas is then passed across an electronic-nose sensor array, and the response is converted into a concentration in ppb.
Because only gas reaches the sensor, suspended solids, turbidity and dissolved minerals cannot coat it. This is the main difference from UV, infrared and fluorescence analyzers, whose optics need regular cleaning, and from colorimetric analyzers, which consume reagents.
What can it detect?
The MS1200-S is a broad-band early warning instrument. It responds to:
- Fuels and oils: diesel, kerosene, gasoline and heating oil
- Aromatic hydrocarbons, including BTEX (benzene, toluene, ethylbenzene, xylene)
- Polycyclic aromatic hydrocarbons (PAHs)
- Aliphatic hydrocarbons
- Chlorinated solvents such as trichloroethylene, tetrachloroethylene and vinyl chloride
The analyzer is factory calibrated with toluene and reports total VOCs as a toluene equivalent. It can also be calibrated for a specific compound when a known substance must be monitored.
Typical applications
- Raw water intakes: rivers, reservoirs and boreholes that feed drinking water treatment plants, where a spill can force a plant shutdown or expensive filter replacement
- RO membrane and activated carbon protection: detecting hydrocarbons before they reach membranes or break through carbon beds
- Process and cooling water: trace contamination from leaking heat exchangers or pumps
- Remediation sites: monitoring treated groundwater for residual contamination
For higher concentrations in industrial effluent, see the MS1210-S and MS1220-S; for VOCs in gas streams, the MS4000-S.
Key specifications
| Parameter | Value |
|---|---|
| Detection range | 1–3000 ppb total VOCs (display range configurable, default 0–1000 ppb) |
| Repeatability | ±2% |
| Accuracy | ±10% from 30 to 3000 ppb (toluene standard) |
| Measurement | Continuous, new reading every 2 seconds |
| Water temperature | 1–50 °C |
| Ambient temperature | 0–50 °C (climate control may be needed) |
| Sample flow | 2 l/min |
| Outputs | 4–20 mA (isolated), 3 relays: alarm 1, alarm 2, fault (5 A) |
| Communication | Modbus optional; Profibus, HART, Foundation Fieldbus on request |
| Interface and data | Touchscreen; data storage on µSD card / PC (6 months) |
| Enclosure | IP65, powder-coated stainless steel; 316 stainless steel sampling tank |
| Dimensions and weight | 650 × 960 × 400 mm, 30 kg |
| Power supply | 90–240 V AC 50/60 Hz or 9–36 V DC; max 45 W, typically 20 W |
| Maintenance | Service every 6 months (filters, restrictor); air pump every 18–36 months |
Why choose Akan for the MS1200-S?
Akan engineers the complete installation around the analyzer: sample take-off and return lines, an analyzer cabinet or online analyzer system where needed, alarm integration with SCADA or DCS, commissioning and periodic service. Contact us with your water source and the contaminants you want to detect, and we will recommend the right model and calibration.
