Our sensors are stable and reliable even when measuring very low pressure. A customer in the pharmaceutical industry buys Micaflex PFT pressure and flow sensors scaled for the range -1.25 to + 5.00 Pa from us.
Check the connections between the central unit and the O2 probe.Remove O2 probes from the flue gas duct and let it hang freely in the fresh air of its connecting cable. Note! must not have contact with other metal. Keep in mind that the measuring tip is warm. Read and check the following metrics:
If the current is higher than 1.9 A, it means that the O2 probe is too hot and then gives a low value of the counter = low O2 content. Contact Micatrone for replacement of O2 probe.
If the temperature deviates more than 5 degrees from 700 degrees, the central unit can be restarted (break the 230 VAC voltage, wait 1 minute and knock back the voltage) to see if it helps. If the fault persists, contact Micatrone for replacement of central unit.
Functional earthing
Functional earthing a connection to protective ground that DOES NOT have a personal protective function but is only intended to provide a better function/measurement of electrical signals. Functional ground are commonly used in digital products where you need an electrical connection to a large ground area in order to more easily remove interference.
Measurement error
Due to earth currents, the functional ground usually has different potentials in different parts of the plant. If you then connect the measuring signals between 2 different devices, which are located several meters apart, and both devices are functionally grounded on their inputs and outputs, a measurement error will occur. The best way to avoid this measurement error is to use an insulation amplifier so that the measuring signal cannot run in the operating earth.
MG-4000-R2
The analog inputs and outputs of the MG-4000-R2 are connected via the enclosure/protective tube of the O2 probe, which in turn is mounted in a grounded flue gas channel. It is important to use the insulated 3/4" coupling so that the O2 probe does not have metallic (galvanic) contact with the flue gas duct. Also, make sure that the O2 probe's radiation shield is not against the flue gas duct.
The output signal from the MG-4000-R2 connected to another device (PLC, DUC, etc.) must be connected to a potential-free input. Some models of PLC, DUC and frequency converters have a function-grounded input and then an insulation amplifier must be used to isolate the measuring signal from function earth.
Our sensors are stable and reliable even when measuring very low pressure. A customer in the pharmaceutical industry buys Micaflex PFT pressure and flow sensors scaled for the range -1.25 to + 5.00 Pa from us.
Check the connections between the central unit and the O2 probe.Remove O2 probes from the flue gas duct and let it hang freely in the fresh air of its connecting cable. Note! must not have contact with other metal. Keep in mind that the measuring tip is warm. Read and check the following metrics:
If the current is higher than 1.9 A, it means that the O2 probe is too hot and then gives a low value of the counter = low O2 content. Contact Micatrone for replacement of O2 probe.
If the temperature deviates more than 5 degrees from 700 degrees, the central unit can be restarted (break the 230 VAC voltage, wait 1 minute and knock back the voltage) to see if it helps. If the fault persists, contact Micatrone for replacement of central unit.
Functional earthing
Functional earthing a connection to protective ground that DOES NOT have a personal protective function but is only intended to provide a better function/measurement of electrical signals. Functional ground are commonly used in digital products where you need an electrical connection to a large ground area in order to more easily remove interference.
Measurement error
Due to earth currents, the functional ground usually has different potentials in different parts of the plant. If you then connect the measuring signals between 2 different devices, which are located several meters apart, and both devices are functionally grounded on their inputs and outputs, a measurement error will occur. The best way to avoid this measurement error is to use an insulation amplifier so that the measuring signal cannot run in the operating earth.
MG-4000-R2
The analog inputs and outputs of the MG-4000-R2 are connected via the enclosure/protective tube of the O2 probe, which in turn is mounted in a grounded flue gas channel. It is important to use the insulated 3/4" coupling so that the O2 probe does not have metallic (galvanic) contact with the flue gas duct. Also, make sure that the O2 probe's radiation shield is not against the flue gas duct.
The output signal from the MG-4000-R2 connected to another device (PLC, DUC, etc.) must be connected to a potential-free input. Some models of PLC, DUC and frequency converters have a function-grounded input and then an insulation amplifier must be used to isolate the measuring signal from function earth.
