Burner process control
- Heating, ventilation and air conditioning
- A temperature limiter is installed in the process controller of a burner. When it is triggered, a fault message should be sent and maintained after the power is switched off.
- The cable breakage monitoring function of the thermistor relay monitors the status of the temperature limiter.
In the event of a fault, the output relay is tripped, and the fault is signalled through the output contact. The only way to clear the fault is to press a reset button.
The state of the output relay is also saved in the event of a power supply interruption. When the power supply is restored, the state from before the power failure is restored, and the fault is not cleared until the internal or external reset button is pressed.
- - Complicated conventional control system is replaced with a relay.
This might be of interest for you
No entries found.
When the lights fail in public buildings (such as schools) because of undervoltage, the emergency lighting systems must be activated in publicly accessible…
Lift equipment service
A wide range of different control and supply voltages are used for conveyor and transport systems. The maintenance of expensive inventories of replacement parts…
Monitoring of the operating state of the exhaust fan. The fan has a high starting current; this may not influence the monitoring and may not lead to a…
Lamp monitoring in lifts
A current monitoring relay is needed for direct and rotary current with a measuring range from 10 mA to 10 A. The functions should include overcurrent and…
Sorting system lighting
Monitoring the lights in quartz and stone sorting systems for failure/faults.
Continuous operation detection
Preventing the destruction of a compressor due to continuous operation after an air hose becomes defective.