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Portable Oil-in-Water Testing

The portable oil-in-water tester ERACHECK X is easy to use, providing results within 5 minutes. ERACHECK X is fully compliant with the latest IR oil-in-water standard ASTM D8193 measuring TOG, TPH, and FOG in water with sub-ppm precision. Its rugged design, with a small footprint, makes it suitable for fast on-site compliance testing even under extreme conditions.


Correlation to

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Xtra Rugged, Fast & Easy

ERACHECK X is built in a corrosion-resistant aluminum housing and has no moving parts. Its ruggedness and reliability make it the ideal solution in tough ambient conditions for the daily work on oil drilling platforms and as a portable field tester for wastewater professionals.

The simplified extraction procedure is performed in a few steps, requiring minimum glassware and easy cleaning. The fully automated measurement of the extract takes only 2 minutes. Results are displayed on the large full-color touch screen and can be exported via USB directly to a flash drive or PC for LIMS.

  • ERACHECK X: Sample introduction
  • ERACHECK X: Measurement

Xtra Accurate

ERACHECK X is a high-end dual-beam non-dispersive IR spectrometer for the highly accurate measurement of oil-in-water. Based on the in-expensive and environmentally friendly CFC-free solvent, cyclohexane, it measures in full compliance with ASTM D8193, offering excellent correlation to EPA 1664, ISO 9377-2, and OSPAR. Unlike gravimetric methods, ASTM D8193 does not require the evaporation of the solvent, eliminating the risk of light-ends getting lost during the measurements. This leads to a significantly better accuracy and precision (r = 0.25 mg/L) over a wide measuring range (0 – 3000 mg/L).

ASTM D8193

Your features at a glance

  • Full compliance with ASTM D8193
  • Pre-installed factory calibrations for excellent correlation to EPA 1664, ISO 9377 OSPAR, ASTM D7678 & D7066
  • On-site results in under 5 minutes
  • Compact and light-weight instrument design with the smallest footprint
  • 8.4” multilingual color touchscreen
  • Built-in industrial PC with USB and Ethernet for LIMS connectivity
  • User-specific calibrations and password protection

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Measurement Procedure

  • Extract the water sample with cyclohexane: typically 200 mL of water is extracted with 15 mL cyclohexane.
  • Select the calibration you want to use: ASTM D8193 or FOG
  • Enter the name of the sample and the name of the operator
  • Press the RUN button
  • Inject 5 mL pure cyclohexane for the background measurement
  • Inject 3 mL of the extracted cyclohexane for the sample measurement

ERACHECK X guides you through the measurement procedure. The liquid volumes have to be entered depending on the actual volumes used for the extraction of the sample.

  • ERACHECK X Measurement
  • ERACHECK X: Result Screen
  • ERACHECK X: Select the calibration

ERACHECK X - Operation Video

Watch this video to get an overview of the standard operation of ERACHECK X: From the simplified extraction procedure to the sample measurement and the measurement result.


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Technical Specifications

ASTM D8193
Correlation to
Infrared spectroscopy: ASTM D7678, ASTM D3921, D7066; DIN 38409-H18; OSPAR IR method; IP426
Gas chromatography: ISO 9377-2, ISO 9377-2 (mod) OSPAR, ISO 16703; MADEP-EPH; EN 14039
Gravimetry: EPA 1664, EPA 9071; ASTM D4281; ISO 9377-1
TOG (Total Oil and Grease)
TPH (Total Petroleum Hydrocarbon)
FOG (Fats, Oil, and Grease in wastewater)
Sample Volume
200 mL water and 15 mL cyclohexane
Measurement Time
5 min including extraction
Measurement Range
0 - 3000 mg/L oil-in-water (Over 1000 mg/L: water:solvent = 250 mL:45 mL)
Repeatability (SD)
0 - 50 mg/L: 0.25 mg/L (900:50 mL H2O:Solvent)
0 - 50 mg/L: 0.34 mg/L (200:15 mL H2O:Solvent)
Result Database
Over 100 000 detailed test reports stored
Remote Service
Remote service capability via Ethernet
Built-in PC with Ethernet, 4 x front and rear USB and RS232 interfaces; Wi-Fi via USB dongle
Direct LIMS connectivity via LAN, output to printer or PC and export as CSV or PDF
Optional input by keyboard, mouse, and barcode reader

Industry-proven 8.4" multilingual color touchscreen
Power Requirements
85-264 V AC 47 - 63 Hz, max 150 W, Field-Application: 12 V DC

W x D x H = 15,7 x 28,5 x 28,9 cm (6.2 x 11.2 x 11.4 in)
7 kg (15 lb)

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