Gasanalyse

6801 Zirkoniumoxid Rauchgasanalysator

Designed to measure Oxygen in flue gas for combustion efficiency and fuel saving. Ideal for measurements in post combustion chamber at high temperature typical of incinerators, cremators, heating furnaces, soaking pits and annealing furnaces.

Measureable Gas Oxygen (O2)   Main Features Extreme Roughness Wetted parts in... mehr
Produktinformationen "6801 Zirkoniumoxid Rauchgasanalysator"

Measureable Gas

Oxygen (O2)

 

Main Features

Extreme Roughness

Wetted parts in ceramic materials (Zirconia and pure alumina)

Resistant to corrosion by acid & aggressive substances, to abrasion and to the alternation of oxidant and reducing conditions

External flanged installation & protection tube (option) warranty extra protection in case of huge dust amount in the process

 

Easy to Use

Direct insertion into the chimney or post-combustion chamber.

Integral thermocouple

Possibility to verify the calibration without removing the probe from process

Calibration (with air flowing) simply pushing one button on ADV222 control unit

 

Low Costs of Ownership

Really in situ measurement

No sampling system required

Sensor on the tip and no gas circulation

 

European Compliance

Low Voltage Directive 2014/35/EU

EMC Directive 2014/30/EU

Directive ATEX 94/9/EC (optional)

 

ATEX

The Probe 6801 can be configured for hazardous area classified Zone 1 in accordance to EN 94/9/EC (ATEX) and EN 60079-10.

Spezifikation

 

Probe

Accuracy

0.1% O2 below 5% or 2% of reading above 5%

Zero Drift

± 2% of reading in 3 months

Repeatability

± 1% of reading (short term)

Response Time

less than 5 sec. at T95 (with flow rate 2 l/min.)

Probe Head Protection

IP65

Weight

~ 1.5 ÷ 2.5 Kg.

Wiring Connections

N°1 cable gland for cable max. 10 mm and inner terminal strip

Pneumatic Connections

Reference and calibration air inlet: 1/8” NPT-F

Gas

Oxygen (O2)

Measuring Principle

Zirconium Oxide (Zirconia)

Sensor Output

E.M.F. function of Oxygen concentration

TC Output

E.M.F. function of the temperature

Type of Thermocouples

Standard type B (pt 6 Rh-Pt 30 Rh). In alternative type S

Humidity

0….90% non-condensing

Temperature Range

600°C to 1250°C

Head Temperature

Max. 130°C

Reference Air

Dry, clean and oil-free air. Flow rate: 100…200 cc/min.

 

Control Unit

ADV222 specifications (common to all versions)

Analog Inputs

2 x isolated (1 for Oxygen and 1 for Temperature)

Analog Outputs

2 x 4-20 mA isolated (1 for Oxygen and 1 for Temperature)

Output Resolution

better than 1x10.000 of FS

Relays

N°2 relays SPDT, 230 VAC, nominal 2A (max 4A) *

Power Supply

8...28 VDC ; 9...24 VAC

Ranges

0-25% O2 ; 0-1000°C **

Operative Temperature

-20°C…+70°C

Humidity

0….90% non condensing

Led

Power supply (blue) - Cumulative inputs overload (red) - TX/RX (yellow/amber)

Serial Interface

RS485 2-wire (Protocol ModBus-RTU)

Line Impedance

120 ohm

Termination Type

External

Max Speed

57600bps

Max No. of Nodes

32

Protection

IP20

Weight

900 gr.

Connections

Removable screw terminals pace 5,08 mm

Conductor Section

Max. 2,5 mmq

Mounting

DIN rail

 

*Threshold to be selected at order (factory set) or settable in field by PC with ADEV Easy Configurator or by display if ADbox or ADcase are selected  

**Default ranges factory set. Modifiable on request at order on customer specification or by PC with ADEV Easy Configurator

 

 

Supplementary ADbox Specification

 

Protection

IP55

Weight

8 Kg.

Dimensions

400 x 300 x 150 mm

Display

LCD 2.42” OLED . Resolution0.01%

Cable Entrance (bottom)

N°4 cable glands PG 13 / 9 / 7

Supplementary ADbox Specification

 

Protection

IP55

Weight

8 Kg.

Dimensions

400 x 300 x 150 mm

Display

LCD 2.42” OLED . Resolution0.01%

Cable Entrance (bottom)

N°4 cable glands PG 13 / 9 / 7

 

Supplementary ADcase Specification

 

Protection

IP55

Weight

10 Kg.

Dimensions

400 x 300 x 150 mm

Display

LCD 2.42” OLED. Resolution0.01%

Cable Entrance (bottom)

N°4 cable glands PG 13 / 9 / 7

Pneumatic Connections

Reference and calibration air inlets: 1/8” NPT-F

Configurations

ADcase-1: Pressure reducer and manual valve

 

ADcase-2: Pressure reducer and electro valve

 

ADcase-3: Pump and manual valve

 

ADcase-4: Pump and electro valve

Weitere Infos

Applications

- Annealing Furnaces

- Reheating Furnaces

- Preheating Furnaces

- Soaking Pits

- Cremators

- Civil Waste Incinerators

- Industrial Waste Incinerators

- Hospital Waste Incinerators

- Sintering of Metals

- Process Heaters

- Other combustion processes where flue gas is within temperatures limits (600 ÷ 1250 °C)

 

Measuring Principle

The measuring principle on which the analysis is based is linked to the use of Zirconium Oxide which, at high temperatures, can behave like a solid state electrolyte, developing an electromotive force (E.M.F.) on two electrodes placed in contact with different O2 concentrations (partial pressures), proportional to the temperature in Kelvin degrees (°K) and to the logarithm of the ratio between the two pressures PO2’ and PO2” in accordance with Nernst’s well-known ratio:

 

E = RT / nF (ln P02’ / P02“)

 

Where: R = Perfect gas constant (8,31 Joule/degree bulk)

F = Faraday’s constant

T = Absolute temperature in °Kelvin

n = 4


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