Gasanalyse

ZCS Zirkoniumdioxid-Sonde

The ZCS Carbon Probe is a resilient in situ analyser, intended to be used to control the carbon potential of an endothermic or Nitrogen/Methanol based heat treating atmosphere. The patented electrode design and the special used alloy, reduce the contact area with Zirconia. This solution increases the probe service life, reduces carbon built up and guarantees a very fast response time. 

The ZCS Carbon Probe is a resilient in situ analyser, intended to be used to control the carbon... mehr
Produktinformationen "ZCS Zirkoniumdioxid-Sonde"

The ZCS Carbon Probe is a resilient in situ analyser, intended to be used to control the carbon potential of an endothermic or Nitrogen/Methanol based heat treating atmosphere. The patented electrode design and the special used alloy, reduce the contact area with Zirconia. This solution increases the probe service life, reduces carbon built up and guarantees a very fast response time. 

 

ZCS Carbon Probe, located directly in the furnace heat zone, responds almost immediately to changes in the carburizing atmosphere and totally eliminate the need for gas sampling system

 

Measureable Gas

Carbon Potential [%C]

 

Main Features

Extreme Roughness

- Ideal for use in carburizing, neutral hardening and gas generator applications.

- Resistant to sooting

- Equipped with purge port for probe burn-off

- Special selected Alloy sheath

- Resistant Alloy electrode welded to the metal sheath, acting like a lead wire. Failure of this system is virtually impossible.

 

Easy to Use

- Thermal and mechanical toughness makes the probe suitable to be installed and removed in very short time

- Optional integral thermocouple

- Set of adapters and joints to adapt the probe length to every mounting

 

Low Costs of Ownership

- Easy replacement with all first and second generation probes on the market

- Reconditioning and certification service with fest delivery time to reduce plant stop to the minimum

 

European Compliance

- Low Voltage Directive 2014/35/EU

- EMC Directive 2014/30/EU

Spezifikation

Technical Specification

Measuring Principle

Zirconium Oxide (Zirconia)

Accuracy

± 0.03% in carbon weight within the used range

Response Time

less than 2 sec.

Output Signal

1000 ÷ 1300 mV (0.01 ÷ 1.6% C)

Type of Thermocouples

Type K, B, S (optional)

TC Output

E.M.F. function of the temperature

Impedance

Connect the probe to external devices with impedance 10 MΩ or higher

Wiring Connections

ZCS3: plug-in connector (male and female included)

ZCS4: cable gland for cable max. 10 mm and inner terminal strip

Pneumatic Connections

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

Temperature Range

700°C to 1050°C

Head Temperature

Max. 150°C

Reference Air

Dry, clean and oil-free air. Flow rate: 50…100 cc/min.

Purge Air

Dry, clean and oil-free air. Flow rate: 2000 cc/min.

Process Connection

1” NPT

Sheath diameter

27 mm

Sheath Material

Special Alloy (field tested for long operation)

Weitere Infos

Applications

- Carbon potential control of an endothermic heat treating atmosphere

- Carbon potential control of Nitrogen/Methanol based endothermic heat treating atmosphere

- Carburizing atmosphere

 

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 on two electrodes placed in contact with different O2 concentrations (partial pressures), proportional to the temperature in Kelvin degrees (°K) and the logarithm of the ratio between the two pressures PO2’ and PO2” in accordance with Nernst’s well-know ratio:

 

E = RT / nF (Lg 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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