ECON oxygen gas analyzer

econ NEW 2 10 web

for work at temperatures from +25 to +760 оС

The stationary gas-analytical device for determining the oxygen level of ECON is designed for continuous remote non-sampling measurement of oxygen content in the gaseous media of technological plants operating on various types of hydrocarbon fuels (natural gas, fuel oil, coal, shale), as well as in various inert gaseous media. The complex is designed to operate as an independent control device, & nbsp; and as part of automated combustion control systems.

The gas analysis device is manufactured in accordance with TU 95-2468-2000 and consists of a sensor installed directly in the measurement zone, an electronics unit that generates a unified signal proportional to the oxygen content in the exhaust gases, a connecting cable up to 80 (eighty) meters long, set of connecting wires and spare parts kit.

The gas analytical device is a measuring instrument (Certificate RU.С.31.147.A. No. 35763 dated 08.28.2014) and is intended to be used both as an independent control unit and as a primary converter in automated operating mode control systems technological installations.

The sensor is located in a special technological hole of the installation, for example, in a chimney, in a boiler shunt pipe, in the area of a superheater, on the regenerator arch, or in other places of a fuel-burning device.

The sensing element is located directly in the measuring area. This arrangement of the sensitive element eliminates the need to use a sampling system, and also allows for high accuracy of readings and rapid response to changes in the analyzed medium. The design of the ceramic sensitive element element is an original development RPE "ECON" (patent for invention No. 2339028), designed for maximum measurement accuracy, reliability and durability.

The electronic unit is connected to the sensor using a heat-resistant cable up to 80 meters and shows the current value of oxygen concentration and temperature of the sensor.

The electronic unit generates a unified signal 0-5 and 4-20 mA , proportional to the oxygen content in the controlled gas. Optionally, the unit can be equipped with an additional interface (RS 485) for integrating the device into industrial networks, and solving problems within the framework of the existing process control system, or for building this system from scratch using the ECON gas analyzer.

EKON gas analyzers can successfully perform measurements both in transition periods (when using fuel oil) and in conditions of high dust content (up to 100 g / m3). This is possible due to design features and solutions, including the use of a replaceable ceramic filter with the ability to purge it without removing the sensor.

NPP "ECON" can equip its gas analyzers not only with ceramic filters (standard equipment), but also with porous stainless steel filters (optional). Filters made of porous stainless steel have increased strength and wear resistance under the conditions of abrasive action of mechanical particles in the gas phase. ECON sensors can be equipped with such filters, for example, for operation on dust preparation lines, in conditions of increased dust content of flue gases. Corrosion-proof filter - replaceable, purged, interchangeable with a ceramic filter, replacement can be done by service personnel. The stainless filter can be supplied to the customer additionally, under a separate contract, or as part of an ECON gas analyzer sensor.

2018 08 03 02

Ceramic and metal filters of the sensor of the ECON gas analyzer

The characteristics of the device are indicated in the table "The main technical characteristics of the gas-analytical device EKON" and in the table "The main design characteristics of the gas-analytical device ECON".

The design developed by RPE ECON provides an unprecedentedly high level of reliability of a solid electrolyte sensing element, which does not need to be replaced during the entire life of the sensor.

The service life of the sensor is from 5 (flue gas analysis of HPS on fuel oil) to 10 and more years (HPS on gas).

The main technical characteristics of the gas analytical device ECON

Controlled Environment Parameters
The oxygen content in the analyzed gas mixture,% vol. 0,1 ... 25,0
Controlled Temperature, 0С 25 ... 760
Pressure of the controlled environment (excess), kPa from minus 3.9 to 4.4
The flow rate of the controlled environment, m/s 0 ... 15
Dustiness of the controlled environment, g/m3 до 100
Ambient temperature (sensor terminal head), 0С -30 ... +70
Ambient temperature (electronic unit), 0С +5 ... +50
Relative humidity, % up to 95 at t = 350С
The limit of permissible basic measurement error
in the measuring range No. 2, 3 ­2,5%
in the measuring range No. 1 0.1% vol
Volume measurement ranges О2
1 range, % vol. 0,1 ...  2,5
2 range, % vol. 0,1 ...  5,0
3 range, % vol. 0,1 ... 10,0
4 range, % vol. 0,1 ... 25,0
Output signal
Settling time 90% of signal T0,9d, с 10
Power supply 220V, 50Hz, power consumption W, no more 150
Mass of the electronic unit, kg, no more 5

The warranty period is 2 (Two) years.
The time interval without calibration is 1 (One) year.
The average life of the gas detector sensor is at least 5 (Five) years , the electronics unit - 10 (Ten) years .

Main structural characteristics of the gas-analytical device ECON, modification of EC

Parameter Size
The length of the immersion of the sensor, mm 340 500 800 1000 1270 2000
Total length of the sensor, mm 620 780 1080 1280 1550 2280
Diameter of the immersion part of the sensor, mm 57
Diameter of sensor mounting flange, mm 140
Sensor weight, kg 3,1 3,5 4,3 4,7 5,5 7,6
The length of the connecting cable between the sensor and the electronics, m 30 (optionally up to 80)
Cable length from electronic unit to information receiver, m 300

The gas analyzer sensor is mounted using an installation flange with a diameter of 140 mm (DN50 PN1, GOST R No. 54432-2011, DIN 2501).

ECON oxygen gas analyzer sensor device


1 - sensor body, 2 - sensor, 3 - heater, 4 - flange, 5 - screen shell, 6 - terminal flange, 7 - nipple connector, 8 - CGM tube, 9 - CGM tube cover, 10 - replaceable ceramic filter (or filter made of porous stainless steel)

Advantages of gas analytical devices ECON

  1. ECON gas analysis instruments are reliable and simple & nbsp; means for measuring the level of oxygen in the exhaust gases of boiler units.
  2. High level of reliability, speed, accuracy of measurements and indications, achieved by:
    • location of the sensitive ceramic element directly
    in the analyzed medium;
    • lack of a sampling and preparation system;
    • use of a sensitive ceramic element of our own design and production (patent No. 2339028).
  3. The warranty period for the operation of the gas analyzer is 2 (Two) years.
  4. Availability of additional services for post-warranty servicing of devices (ensures the maximum useful life of each piece of equipment).

At RPE ECON, a multi-stage quality control system has been introduced, including:

  1. Incoming inspection of all incoming materials and elements;
  2. Multistage control of a solid electrolyte sensitive element at all stages of the production cycle;
  3. Control of production processes, ensuring compliance with all technical regulations and processes;
  4. Total output control of ceramic elements;
  5. Total output control of individual units and the gas analyzer as a whole.

ECON gas analyzers are innovative, high-tech devices that have proven reliable, durable and easy to use. Thousands of fuel-burning enterprises have opted for ECON gas analysis instruments. Nearly two thousand boiler units and fuel-burning plants are equipped with ECON stationary oxygen meters (see reviews).

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