Mas01
Member
For part of our test system, we need to measure water level inside a chamber, which is under vacuum. We were successfully using one of these by WIKA (see link). it has a 'breather' tube. This breather tube must be placed above the level of the water, but still inside the vessel. The sensor uses differential pressure to calculate the depth of water. It's stopped working because (we believe) that some water has entered into the open end of the tube. The problem is that the tube is in a hostile environment with water spray and we think that some drops of water have gone inside the tube,. possibly blocking it and now it reads erratically.
The big problem is that the water level was being used to control a scavenge pump, when the level reached say 50cm (a setpoint, ie user-defined level), the scavenge pump would turn on, so because of this problem the pump won't be controlled properly.
Can anyone suggest another water level sensor that doesn't need a breather tube?
https://www.alphacontrols.com/IL-10-IS-Submersible-Pressure-Transmitter/model/2743
The big problem is that the water level was being used to control a scavenge pump, when the level reached say 50cm (a setpoint, ie user-defined level), the scavenge pump would turn on, so because of this problem the pump won't be controlled properly.
Can anyone suggest another water level sensor that doesn't need a breather tube?
https://www.alphacontrols.com/IL-10-IS-Submersible-Pressure-Transmitter/model/2743