Q1600D EMI question
Posted: Fri Aug 14, 2020 2:40 pm
I have a RF power application that requires a maximum of 750W of cooling for two modules. The total is 1500W. This is the “absolute maximum” requirement. The operating requirement varies, but will average 60% duty cycle for periods up to five minutes with an average of five minutes between operating periods. Each module is designed for a coolant flow of 1 GPH average of distilled water with up to 20% propylene glycol. The coolant galleys are 6mm ID and the connections are normally made with 8mm ID silicone tubing up to 4M length. Normal coolant temperature under load is 10-25C, no higher than 30C. Total runtime averages 2-3 hours per day.
The LightObject Q1600D chiller looks like it would be a good fit for the application. My question is, though about possible EMI from internal power supplies. Have these units ever been used in a RF/EMI sensitive environment? I’ve tried one other non-refrigerated chiller intended for CO2 laser cooling, and the internal 24-volt switching power supply generates far too much broadband RF noise to be usable.
I understand this wouldn’t be a normal application for this unit, but we’ve had good luck with a smaller refrigerated LightObject cooler that’s installed on our 60W CO2 laser, so I thought I would ask.
Thanks!
The LightObject Q1600D chiller looks like it would be a good fit for the application. My question is, though about possible EMI from internal power supplies. Have these units ever been used in a RF/EMI sensitive environment? I’ve tried one other non-refrigerated chiller intended for CO2 laser cooling, and the internal 24-volt switching power supply generates far too much broadband RF noise to be usable.
I understand this wouldn’t be a normal application for this unit, but we’ve had good luck with a smaller refrigerated LightObject cooler that’s installed on our 60W CO2 laser, so I thought I would ask.
Thanks!