An overview of the different monitoring levels and their special features
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Time to read 2 min
Basic
PURION's UV-C lamps have a natural decrease in output over the course of their lifetime. We guarantee that after 10,000 hours the lamp will have reached exactly the promised flow rate. After this time the lamp must be changed to guarantee the disinfection performance. The Basic version has no measurement of the lamp life and also no sensor monitoring, so you are dependent on measuring the runtime yourself, checking the lamp at regular intervals and checking the reactor for possible contamination.
Plus (OTC)
The UV-C lamp has a natural decline in performance over the course of its lifetime. We guarantee that after 10,000 hours the lamp will have reached exactly the promised flow rate. After this time the lamp must be changed, the lamp runtime meter and the lifetime monitoring (OTC) will signal the right time. The hours that the lamp is on are counted and the values are output via an LED display. Up to 9,000 hours a green LED lights up, between 9,000 and 10,000 hours the pre-alarm is indicated by a yellow LED and after 10,000 hours a red LED lights up. Thus, the right time to change the lamp is not missed.
Extra (OPD)
For safe control of the UV-C lamp, sensor monitoring is integrated in this system. The UV-C output of the lamp is permanently measured via a sensor mounted in the center of the stainless steel reactor and output via an LED display. If the UV-C lamp has more than 70% of the starting intensity, a green LED lights up, between 50 and 70% a yellow LED lights up as a pre-alarm and below 50% a red LED lights up. If the indicator is at red, there is not enough UV-C intensity left to provide the promised flow. This may be due, for example, to the natural power drop of the UV-C lamp or to contamination within the reactor.
Ultra (ESM)
The sensor monitoring of this system directly measures the UV-C output of the lamp. The sensor is located in the center of the stainless steel housing and always measures the current UV-C output, which is output by means of an LED display. At a rate of more than 70% of the starting intensity a green LED lights up, between 50 and 70% a yellow LED appears as a pre-alarm and below 50% a red LED lights up. When the red LED is on, it means that the promised flow rate can no longer be guaranteed. Reasons for this can be the natural drop in performance of the system or contamination within the system. As soon as the red LED lights up, the additionally installed solenoid valve is automatically closed, so that there is no danger for the user. This solenoid valve is currentless and therefore closes fully automatically even in the event of a power failure.