HM-900 Oil-In-Water Handheld Analyzer

Portable Oil-In-Water Analyzer.

The Pyxis Lab® HM-900 is a handheld portable fluorometer that measures the concentration of multiple oils in water (Marine-Offshore Oil, #1 Diesel/Kerosene & Heavy Fuel Oil).

CE Mark


SKU 52201 Category Tags ,


The Pyxis Lab® HM-900 is a handheld portable fluorometer that measures the concentration of multiple oils in water. Utilizing an LED sourced UV Fluorescence methodology at 365nm wavelength and 410nm excitation, the HM-900 enables automatic range selection with dual-channel wavelengths of fluorescence.


Two Extraction Methods
The HM-900 offers measurement of oil content through Hexane Extraction and Pyxis Lab® prepared Non-Toxic / Non-Flammable Solvent. This allows for a safer and more convenient measurement, reducing sample preparation steps. Both 24mm and 16mm sample vials may be used with the HM-900.

Pre-Programmed Calibration Curves for Primary Oil Classes
The HM-900 has three default built-in calibration curves for Marine-Offshore Oil, #1 Diesel/Kerosene & Heavy Fuel Oil. The user may select which of these three formats are desired for final measurement display. Users may also create up to 7 customized/user defined calibration curves for the specific oil desired.

Suitable for Direct-Read Method for Dissolved or Emulsified Oil
The HM-900 can be used to directly analyze oil in water content without the need for extraction using UV fluorescence methodology. This method is commonly utilized for samples containing dissolved or lightly emulsified oil.

Secondary Standard for Rapid Calibration
Preparation of a true oil in water calibration standard is both time consuming and subject to error. As such, the HM-900 can also be calibrated using Pyxis synthetic OIW (oil in water) secondary standards. This approach enables users to utilize a synthetic oil in water standard for rapid device calibration, improved accuracy and extended shelf life of the calibration solution.

Typical Applications

  • Heat Exchanger Leakage Detection
  • Oil Tank Leakage Detection
  • Intake Water Monitoring (UF & RO Feedwater)
  • Re-Injection Water Monitoring
  • Industrial Wastewater Monitoring
  • Marine Discharge Monitoring
  • Plant Run-Off / Storm Water Monitoring


Item HM-900
Part Number 52201
Power Supply (4) Alkaline Batteries
Wavelength 365/470 (ex/em) and 470/650 (ex/em)
Detection Limit 0.1ppm (Marine-Offshore Oil)
Range 0.1-1,000ppm, Auto-Channel Switch
Battery Life 2 Months
Display 192x128LCD, Visible Under Direct Sunlight
Weight 1.1lbs (510g)
Dimension L 265mm W 88mm H62mm
Temperature Working: 14-122 °F (-10-50 °C)
Storage: -4-158 °F (-20-70 °C)
Enclosure Rating IP65
Regulation CE / RoHS

Support Documents

HM-900 User Manual V1.04 (1)

HM-900 Data Sheet


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