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Horiba OCMA-310 Oil Content Analyser

This product is now obsolete and has been replaced by the >Horiba OCMA-500 Oil Content Monitor.

The amount of trace hydrocarbons in soil or water can be assessed using the Horiba OCMA-310 Oil Content Analyser, along with the ability to check for residual hydrocarbons on pre-cleaned products.

Extraction of the oil can be carried out by the Freon 113 and S=316. The unit's S-316 solvent can be recycled by Horiba's optional solvent reclaimer. This makes using the OCMA-310 Oil Content Analyser very friendly towards the environment.

The OCMA-310 Oil Content Analyser has a broad measurement range, which helps eliminate the requirement of difficult and complicated range switching. This means the OCMA-310 Oil Content Analyser is very easy to use, accurate, quick and reliable.

Manual control

The OCMA-310 Oil Content Analyser has a two valve system which helps the user ensure that the sample is measured correctly. You simply inject your sample and then press the extract button which starts the mixing and separation process. The mixing and separation process can be visually observed through the sample window.

You then open the upper extraction valve and the sample will then flow into the measuring cell. In the meantime, an oil and water separation filter stops water from entering the cell, with an overflow system discharging any excess sample. The lower drainage valve allows the user to drain the sample after measurement.

0-200 mg/l dynamic range

The pyro-electric sensor on the OCMA-310 Oil Content Analyser gives you a full dynamic range from 0-200 mg/L. This range removes the requirement of range switching and gives the user fast and accurate measurement results for all types of sample, regardless of the concentration level.

Quick start-up

You are able to start work quickly with the OCMA-310 Oil Content Analyser. The analyser warms up in less than 30 minutes.

No optical adjustments

The common requirement of troublesome optical adjustments by conventional pneumatic NDIR analysers are no longer necessary.

Auto hold function

The internal computer of the OCMA-310 Oil Content Analyser automatically works out when the measured value has stabilised and maintains that value on the display.


The OCMA-310 Oil Content Analyser has the capability of monitoring itself for problems and issues, such as motor malfunction, deterioration of the measuring cell's light source and electrical problems.

Should any issue arise, the alarm light will switch on and an appropriate error message will be displayed on the display panel.

Oil/water separation filter

The OCMA-310 is equipped with an oil/water separation filter which prevents water and dirt from entering the measuring cell. This prevents the cell from being damaged, while insuring that the sample being measured is not contaminated.

Data Sheet


  Measurement principle: Solvent extraction, NDIR analysis (Infrared spectroscopy)

  Measurement range: 0mg/l - 200mg/l dynamic ranging

0 to 99.9 mg/L; 0.1 mg/L
100 to 200 mg/L; 1 mg/L

0 to 9.9 mg/L; ± 0.2 mg/L ± 1 digit
10.0 to 99.9 mg/L; ± 2 mg/L ± 1 digit
100 to 200 mg/L; ± 4 mg/L ± 1 digit

  Measurement - Automated mixing, filtration and measurement

  Calibration - One touch calibration after the calibration standard is introduced to the instrument

  Extraction Solvent - S-316 solvent

  Sample/Solvent Volume - 20 mL/10mL, ratio of sample to solvent

  Extraction Method - Built-in extractor for oily water samples

  Display - Measured value; 3 digits LCD with backlight

  Message; Character display LCD with back-light (16�2 characters)

  Functions - Data memory up to 50 data points, Self diagnostics, Stable type display, Interactive operation, Calendar clock

RS-232C, parallel printer port
RS-232C, parallel printer port

  Ambient Temperature - 0 to 40degC

100 to 240Vac ±10%, 50/60 Hz
100 to 120 V AC ±10%,50/60 Hz, 80 VA
200 to 240 V AC ±10%,50/60 Hz, 120 VA

  Dimensions - 200(W)x315(D)x342(H) mm

  Mass - Approx. 7 kg/ 15.5 lb.

Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

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