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 vol.
    0.0 - 0.5% O2 vol.
    0,0 - 25% O2 vol.

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 probe wet part:  mm 38

Connection to the process:  flange PN10 DN50

Converter Dimensions:  500x400x250 mm - IP55

Weight
probe: kg 7
converter  Kg 15

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 shows 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 flowmeter box mod, 62
It supplies reference air to the probe, produced by a membrane electric pump and air or gas from a cylinder for verifying of the accurate measure of the analyser.

Parameters to be considered for a good use and ordering of the system:

Maximum and minimum temperature of the process where the probe will be installed.

Particulate content.

Length of the probe. In the processes with a high temperature it is not necessary the probe to protrude inside the combustion chamber more than 100 / 120 mm.

 Temperature of the head of the probe.

Power supply available on the plant

For any doubt, please contact our technical office that has a long experience in using this type of analyzers in the most hostile plants.

Download catalogue:
 

n. 1 3x4 mm cable for heater and
n.1 4x1.5 for signals between the probe and the transmitter

n. 2 6x4 mm tubing between flow-meter's box and the probe

In situ mounting

High response time

Resistant to aggressive atmospheres

No calibration for drift needed

Suitable for dusty processes

Suitable for any plant temperature