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For those interested in more details of the application: Essentially, we are putting 3kW lamps (enclosed in quartz sleeves) into a wastewater channel - the purpose is to disinfect for bacteria/virus. The lamps rely on the water for cooling and will burn if allowed to operate in air for an...

Thanks for the feedback. Due to the critical nature of the alarm condition I have determined that ultrasonic level sensing is inappropriate. Ultrasonic is fine for active level monitoring but, in the application that I am concerned with, a point level switch is what is required. The...

Hi All, I am designing electrical equipment for a water channel application (flow > 20 MGD) where maintaining a minimum water level is a critical feature of equipment protection. If the channel water level drops below a specified point it is possible that the equipment could be damaged. I am...

FYI - received from collegue in Netherlands. Below the colour codes we use in Europe... 3PHASE: Phase L1 Brown Phase L2 Black 1 Phase L3 Black 2 Neutral Blue Safety- ground...

FYI - received from collegue in Netherlands. Below the colour codes we use in Europe... 3PHASE: Phase L1 Brown Phase L2 Black 1 Phase L3 Black 2 Neutral Blue Safety- ground...

I am designing a control system for an international (IEC standard) customer and would like to verify the colour coding for the conductors: 3 Phase Phase A - Black Phase B - Red Phase C - White Neutral - Light Blue Single Phase AC Power - Black AC Control - Red AC Neutral - Light Blue DC...

I am designing a control system for an international (IEC standard) customer and would like to verify the colour coding for the conductors: 3 Phase Phase A - Black Phase B - Red Phase C - White Neutral - Light Blue Single Phase AC Power - Black AC Control - Red AC Neutral - Light Blue DC...

The electronic transformer can be used to power various lamp types - the advantage is variable output power. I am familiar with electronic transformer being used to run mercury vapor lamps - the output is, as you state, in the 20khz range but is typically a modulated signal if it is desirable...