manufacturer:      Horiba

model:                  OCMA 220

The following illustrations and descriptions refer to the instrument model and are drawn from brochures. They do not represent the scope of delivery. Please refer to the text of the offer for the exact scope of delivery.

Specifications 

OCMA-220

Oil Content Analyzer

Principle

Solventextraction, NDIR analysis

Ranges

0 ~50 ; 0 ~ 200.ppm (dual ranges)

Measuring object

Organic hydrocarbon contamination in fresh or salt water sample

Data display

Liquid crystals, 3-digit panel meter

Repeatability

0 ~ 200 ppm: ±2 % of full scale ±1 digit

0 ~   50 ppm.±2 % of full scale ±1 digit

Calibration

Known oil/solvent mixture for span calibration;

puresolvent for zero

Sample volume

(A) 0 ~ 200 ppm: :5 ml per measurement

(B) 0 ~ 50 ppm:15 ml per measurement

Solvent 

FlonS-316 (Fluorochlorocarbon)**

Solvent volume

(A) 0 ~ 200 ppm: 20 ml per sample

(B) 0 ~   50 ppm:15 ml per sample

Extraction

By built-in extractor

*Externally extracted samples may also be measured.

Ambient temperature

0 ~ 40°C

Output

0 ~ 100 mV DC

Power requirement

AC line voltage, 50 or 60 Hz to be specified, approx. 50VA

Dimensions

220(W) x 362(D) x 375(H) mm

[8.7(W) x14.3(D) x14.8(11) inch]

Weight

Approx.                     10 kg (22 lb)

**Other kind of solvent such as carbon tetrachloride may be used, but the analyzer must be adjusted (including optical alignment) for proper operation.

FlonS-316 is the solvent for extracting oil contents in water developed for oil content measurement, (Patents granted are US PAT. 4164653 and DB PAT 2754293).

Freon-113*may be used instead of FlonS-316, but Freon-113 is highly volatile because of its low boiling point (about 48 °C). For stable measurement when using Freon-113, therefore, the extraction time required for zero and span calibration should be longer than when with FlonS-316. Set the extraction time for zero and span calibration at the same extraction time span required when measuring sample water. For the same reason, conduct measurements when the ambient temperature is controlled constant and the ambient air is ventilated.

(*Freon-113 is a registered trademark of E.I. duPontde Nemours & Co., Inc. for CCI₂FCCIF₂.)