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Rosemount™ OCX8800 Oxygen and Combustibles Analyzer

Rosemount™ OCX8800 Oxygen and Combustibles Analyzer

  • Product Item : OCX8800
  • Product Brand : Emerson
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Rosemount™ OCX8800 Oxygen and Combustibles Analyzer

The Rosemount OCX8800 Oxygen & Combustibles Analyzer provides a continuous, accurate measurement of the oxygen and combustibles remaining in flue gases from a combustion process. The time-tested and world renowned zirconium oxide sensor is the basis for the oxygen measurement. This, coupled with the combustibles sensor can detect oxygen and combustibles concentrations in flue gases with temperatures up to 2600°F (1427°C).

Features of Rosemount™ OCX8800 Oxygen and Combustibles Analyzer

Oxygen and combustibles measurements in a single, easy-to-install transmitter design

Field-replacable sensors

HART®, FOUNDATION® fieldbus and AMS/PlantWeb® compatible

Air purge cycle improves cell calibration and effectiveness

Optional factory built auto-calibration panel

Internal filter and additional in situ filters reduce maintenance intervals

Hazardous location, see full specs for complete list of certifications

Specifications of Rosemount™ OCX8800

Response TimeOxygen: Up to 10 sec T90

Combustibles: Up to 25 sec T90

Process Temperature RangeUp to 2600 °F (1427 °C)

Ambient Temperature-40 to 212 °F (-40 to 100 °C)

DimensionsProbe Length Options from 18 in (0.46 m) to 9 ft (2.74 m)

Communication Protocol4-20 mA HART, FOUNDATION Fieldbus

Certifications/ApprovalsSee full specs for complete list of certifications

Model references of Rosemount™ OCX8800

Rosemount™ OCX8800 doesn't have multiple distinct model numbers in the traditional sense, but it can be configured in different ways, which can be regarded as different variants. 

eg. OCX88A-11-10-1-1-H3-06-02

Here are the specific configurations:

Probe Length and Material Combinations

18 inches (457 mm), 316SS: With a maximum operating temperature of 1300ºF (704ºC).

3 feet (0.91 m), 316SS: With a maximum operating temperature of 1300ºF (704ºC).

6 feet (1.83 m), 316SS: With a maximum operating temperature of 1300ºF (704ºC).

9 feet (2.74 m), 316SS: With a maximum operating temperature of 1300ºF (704ºC).

18 inches (457 mm), Inconel 600: With a maximum operating temperature of 1832ºF (1000ºC).

3 feet (0.91 m), Inconel 600: With a maximum operating temperature of 1832ºF (1000ºC).

6 feet (1.83 m), Inconel 600: With a maximum operating temperature of 1832ºF (1000ºC).

9 feet (2.74 m), Inconel 600: With a maximum operating temperature of 1832ºF (1000ºC).

18 inches (457 mm), Ceramic: With a maximum operating temperature of 2600ºF (1426ºC).

3 feet (0.91 m), Ceramic: With a maximum operating temperature of 2600ºF (1426ºC).

Communication and Configuration Options

H1: HART communication, basic configuration.

H2: HART communication, with local operator interface.

H3: HART communication, with calibration solenoid valve.

H4: HART communication, with local operator interface and calibration solenoid valve.

Electronics Unit Installation Modes

01: Integrated structure of zirconium head and electronic transmitter unit.

02: Split structure of zirconium head and electronic transmitter unit, without cable.

Accessory Options

00: None.

01: Calibration gas flowmeter, reference gas connection components.

02: Prefilter (SST) extending into the flue.

03: Prefilter (SST) extending into the flue, calibration gas flowmeter, reference gas connection components.

11: Calibration gas flowmeter, reference gas connection components, backflushing device.

12: Prefilter (SST) extending into the flue, backflushing device.

13: Prefilter (SST) extending into the flue, calibration gas flowmeter, reference gas connection components, backflushing device.


Rosemount™ OCX8800C is an analyzer used for water quality monitoring, primarily designed to measure parameters such as dissolved oxygen, ozone, chlorine, and more in water. Depending on specific application requirements, the OCX8800C comes in various models and configurations. Below are some common OCX8800C models:


OCX8800C-DO: Used for measuring Dissolved Oxygen.

OCX8800C-O3: Used for measuring Ozone.

OCX8800C-Cl2: Used for measuring Chlorine.

OCX8800C-pH: Used for measuring pH levels.

OCX8800C-ORP: Used for measuring Oxidation-Reduction Potential.

These models can be selected based on specific application scenarios and measurement needs. Each model may also offer different configuration options, such as sensor types, communication interfaces, and installation methods.


Rosemount OCX88C-32-10-0-0-H2-02-0-0

Rosemount OCX88C-22-10-0-0-H4-02-0-0