Horiba OCMA-500 Oil Content Monitor


Product Features

  • Fully automated one-touch operation, from oil extraction to sample measurement and draining
  • Reduced environmental impact and running costs (20% cut in solvent consumption)
  • With no need for a solvent evaporation process, the OCMA-500 offers easy operation, and can detect even oils with low boiling points.
  • Colour graphic LCD - The OCMA-500 comes equipped with a 3.5-in color graphic LCD. Menus and measurement data can be clearly seen USB flash memory drive port Storing data on USB flash memories enables easy data management on PCs.
Delivery options

At Cadmus Products we aim to deliver orders efficiently and at highly competitive rates. 

  • We can ship consignments of all shapes and sizes and hazardous content across the UK and worldwide. Most of our orders are sent via DHL, however sometimes we may use other couriers.
  • If you are purchasing a laboratory product online you can find out the price of shipping checkout. If you are obtaining a quote for a product, then we will email you
    with our best shipping prices along with your quote.
  • Please see our delivery page for full information

The Horiba OCMA-500 is an Oil Content Monitor that is user friendly and has excellent features. The OCMA-500 is simple to use too, after injecting the sample, all you have to do is press a button. This starts the monitoring operation quickly, from oil extraction to sample measurement and draining. This simplistic operating allows anyone to use it. The OCMA-500 cuts solvent consumption by 20% compared with our previous products, reducing environmental impact. It also reduces the running costs.

  • Backlit extraction tank (patent applied for) - The extraction tank is equipped with LEDs. Illuminating the tank makes it easy to check the phase separation between sample and solvent.
  • Unit conversion - Inputting measurement conditions can change the units displayed (mg/L, mg/kg, mg/g, and mg/PC) as the user needs.


Measurement principle: Solvent extraction, NDIR
analysis (Infrared spectroscopy)
Measurement range: 0mg/l ~ 200mg/l dynamic ranging
Resolution 0 to 99.9 mg/L; 0.1 mg/L
100 to 200 mg/L; 1 mg/L
Repeatability 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
*For standard liquids 
Display Method 3.5 inches, 320×240 dots
Backlight Colour graphic LCD
Calibration Method Zero, Span Calibration
Extraction Solvent S-316 solvent
Amount of test sample required Sample water : Solvent = 2 : 1 
Amount of extraction solvent required 8 mL
Extraction Method Built-in extractor
Ambient Operationg Temperature 0 to 40 ℃ (non condensation)
Power supply AC 100V to 240V ±10%, 50/60 Hz
Power consumption AC 100V:Approx.60VA
AC 240V: Approx.90VA
External Dimensions 200(W)×313(D)×342(H) mm
Mass Approx. 7 kg
External Output Output to an USB memory stick

300-item data memory
Stabilized measurement value display
Self error determination

Part Number Description
OCMA 500 Unit
3200551279 For measurement of oil in water
Parts for OCMA-500
3200043516 Filter Element (5pcs/set) ∅40
3200044264 Filter Packing
3200043747 B-Heavy Oil (10ml/BTL)
3200549145 Absortbent Sheet
3200564367 Packing (For OCMA-500 extraction tank)
Measuring Syringe and Options
3200043748 Micro Syringe
3200043783 Measurering Syringe (For Sample 20mL) Simple Type
3200043873 Measurering Syringe (For Solvent 10mL) Simple Type
3014054648 Measurering Syringe (For Sample 20mL) Standard Type
3014054647 Measurering Syringe (For Solvent 20mL) Standard Type
3014102236 Solvent Reclaimer
5200100690 Solvent S-316L (1.5kg/BTL)
ETO Test report for OCMA
Recommended Consumables Parts for OCMA-500 (2 Year Operation)
3200043516 Filter Element (5pcs/set) ∅40 x6
3200044264 Filter Packing x4
3200043747 B-Heavy Oil (10ml/BTL) x2
3200549145 Absortbent Sheet x1
3200564367 Packing (For OCMA-500 extraction tank) x4
Colour White
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