Product details
Online Volatile Phenol Analyzer — Colorimetric
The InstroDirect IDOA-VP Volatile Phenol Online Analyzer is a continuous online analyzer for volatile phenol concentration in industrial effluent, petrochemical process water, and surface water where phenol contamination is a regulatory concern. The 4-aminoantipyrine (4-AAP) colorimetric method produces results comparable to standard lab analysis with results every 15 minutes.
Technical Specifications
| Parameter | Specification |
|---|---|
| Method | 4-aminoantipyrine (4-AAP) colorimetric |
| Measurement range | 0 – 10 mg/L (extended range optional) |
| Accuracy | ±5% or ±0.02 mg/L |
| Measurement cycle | 15 minutes (configurable) |
| Reagent consumption | ~500 mL per reagent per month at 15-min cycle |
| Sample flow | 100 mL/min maintained |
| Output | RS485 Modbus RTU + 4–20 mA + relay alarms |
| Controller | Touchscreen with data logging |
| Power | 240 VAC |
| Enclosure | IP54 indoor or IP65 outdoor cabinet |
| Warranty | 12 months |
Typical Australian Applications
- Petrochemical and refinery effluent monitoring
- Coal coking and tar processing wastewater
- Pharmaceutical manufacturing effluent
- Phenolic resin production
- Environmental surveillance of contaminated sites
- Wastewater treatment plant inlet screening
Why Choose InstroDirect for Online Water Analyzers
- Continuous online measurement replaces daily lab grab samples
- 4-AAP method aligns with AS 4303 and APHA standard methods
- Automated calibration and zero-checks run on programmed intervals
- Reagent refills stocked in Brisbane — no 6-week wait
- Alarms wire into plant SCADA for automatic process shutdown on exceedance
Installation, Commissioning & Service
Install in a sheltered cabinet adjacent to the sample point. Connect sample line (1/4″ tube, 100 mL/min), drain, 240 VAC, and SCADA Modbus link. InstroDirect provides on-site commissioning including first reagent fill, calibration verification, and operator training.
Frequently Asked Questions
What phenols does this detect?
The 4-AAP method responds to most ortho- and para-substituted phenols including phenol itself, cresols, and xylenols. Heavy para-substituted phenols may read low — ask about method validation for your specific compound.
What reagents does it use?
4-aminoantipyrine, potassium ferricyanide, ammonium chloride buffer. All stocked as matched reagent kits — one kit runs 3 months of 15-min cycles.
Australian Technical Support, Calibration & Consumables
- Brisbane-based technical support from field engineers with 20+ years automation experience
- On-site commissioning and calibration service across QLD, NSW, VIC with formal certificate
- Full reagent range stocked locally — no waiting 6 weeks for shipping
- Annual service contracts for councils, water utilities, and industrial clients
- Trade pricing for system integrators, water utilities, and environmental consultancies
Request a Quote
Online analyzers are project-priced based on configuration, reagent volume, and service requirements. Contact InstroDirect for a detailed quote including installation, commissioning, reagent supply, and annual service options.
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