- The probe should never disturb the loading of the furnace.
- The probe should be placed as near as possible to the load for measuring the atmosphere and the temperature which have a direct influence on it; placing it next to a turbine will improve measurements.
- If the probe is placed too close to the heating elements or the door, the temperature control cannot be controlled correctly. A difference in temperature between the probe and the regulating thermocouple should be avoided.
- When installing the probe and during heat treatment thermal and mechanical shocks should be avoided (deterioration of the zirconia measuring element).
- No liquid or vaporised methanol should be sprayed against the oxygen probe (very heavy thermal shock). The consequences in such a case could be: fissures in the sensor, deterioration of the outer electrode and the metal seat, possibly a deformation of the metal tube or a rupture of the outter ceramic protection tube. If spraying of methanol cannot be avoided please consider our ZI probe with 35mm outter ceramic protection.
- The temperature of the measurement element must be between 600°C (1100°F) and 1050°C(1920°F)( (1700°C-3100°F for HT probe).
- The probe body must be held at temperatures of less than 60°C.
- The union that connects the probe to the furnace must be air tight so as to avoid ambient air penetrating into the furnace and causing variations in the oxygen concentration.