This analyzer has the unique characteristic that enables the use in process with extremely wide limit of temperature. The probe carries on a real O2 in situ measure with fast response time and there is no flue gas, that circulates inside the probe. The analyzer can be used in process with high particulate content and aggressive atmosphere, like combustion and post combustion chamber of incinerators of domestic and industrial waste.

 

The analyzer is composed by the probe mod. 4170, electronic unit B770 and Flowmeter box mod. 60 or  mod.62

 

Probe mod.4170

 

Based on a fully stabilized zirconia element, the probe is provided of a special heater of the zirconia cell that enables the use in process with temperature from 100 to 1400 °C .

The heating element is a thick platinum wire which rises the temperature of the cell to 580 °C . A thermocouple measures the temperature of the probe. If the temperature of the probe due to the combustion rises above 580 °C ,  the electric power is cut off and the electronic unit compensates the O2 value considering the real temperature of the probe.

 

The materials used for the construction of the wet parts of the probe are high purity ceramics and platinum.

 

The Electronic converter mod.B775

Housed in a waterproof metal box with glass door, the electronic converter is composed by two parts:

-          the microprocessor based electronic circuit, that supplies digital O2 reading; 4-20 mA output, alarms, etc.

-          the power group with regulation of the power of the electric heater.

The high brightness led display continuously exhibits the measured oxygen (as ppm if the oxygen content is < 0,2% or as percentage if > 0,2%). By pressing a button, the temperature of the probe and the impedance of the cell can be read on the display.

The analyzer must be completed with reference and calibration pneumatic box Mod. 60 or 62 (see specific catalogue).

 

TECHNICAL SPECIFICATIONS

Measuring range:  oxygen 0,0010 ÷ 25% volume

Precision:       ± 3% of the theoretical value or 0.5% O2 vol. whichever is greater

Stability  within 1%

Response time  

    zirconia cell < 0,1 sec., 

    whole system < 15 sec. 90%

Temperature of the process:  100 - 1400ºC

Temperature of terminal head:  < 150ºC

Temperature of electronic:  -20º / +50ºC

Analog output:  isolated linear settable on one of the following fields: 10 - 2000 ppm O2; 0,0 - 10% O2; 0,0 - 25% O2

Dumper:  via software. Average of the oxygen value in times settable from 0 to 900 sec

Alarms:  O2 max and min on a field 0-26% with resolution of 0,1  

Pneumatic connections: for reference and calibration  compression fittings for 4x6 mm tubing

Power supply:  230 and 115 Vac. ± 15%, 50/60 Hz., 500 VA max.

Probe dimensions:  Available lengths of the probe 550, 650, 750 mm under flange

Diameter of wet part:  mm 38

Connection to the process:  flange PN10 DN50

Converter Dimensions:  500x400x250 mm - IP55

Weight  

probe: kg 7

converter  Kg 15