Monitoring of pumps & valves
- Product category:
- Timing Relays
- Hydropower Plants
- Liquid Waste Processing System
- Sewage Pumps
- Water & Waste
- Data sheet:
- For the conditioning of fresh water, drinking water and waste water, the fluid is pumped frequently between basins, wells and tanks
All those plants contain a large amount of pumps and valves, which are controlled mainly automatically by PLCs or control systems. An indication of the proper function of those valves and pumps is the flow of the water in the pipes between the containers. The use of impeller flow meters is very common in these plants.
To detect water flow in case of the pump is running you expect pulses from that impeller wheel. For a closed valve you expect no flow, thus no pulses from the meter. To define that states as good or fault state you can use the pulses to indicate the status of the media und the actors. Thus you proof water flow or not with a simple watchdog timer without any further equipment installed.
- The TELE watchdog timer model E1ZMW10, a very compact electronic timer, offers various and selectable impulse detection modes.
Static input signals at whatever level are interpreted as no movement on the impeller. A deenergized relay indicates no media flow and energized relay output active media flow.
- Three different watchdog modes are selectable to define a start with energized and deenergized mode as well as a watchdog function with latching function, to switch off a plant and prevent from any automatic start. That offers you the detection of process levels or an real hard alarm function To be useable in many applications the instrument offers a wide range auxiliary supply from 24- 240VADC/DC. International approvals like CE, UL, cUL and EAC are available as standard.
May I help you?
Can't find what you're looking for? Please don't hesitate to contact me.
This might be of interest for you
No entries found.
Current monitoring for pump stations
Plug-in monitoring relays are installed in the pump stations of many hydropower plants. These devices are intended to allow for quick and safe replacement in…
Continuous operation detection
Preventing the destruction of a compressor due to continuous operation after an air hose becomes defective.
Short circuit monitoring
Pumps are monitored with PTC resistors or thermal contacts. When PTC resistors are used, the sensor cable should be monitored for short circuits. The available…
Sensorless pump monitoring
The G4CM690V16ATL20 cosinus phi monitor from TELE reliably and cost-effectively monitors pumps for dry running, mislaid filters, or warming of the medium.
Fluid level monitoring
When the pools at a waste water treatment plant are filled to a constant level, this causes undefined states for the float switches (a “flutter state”).
Level monitoring of electroplating tanks
The TELE monitoring relais G2LM20 von TELE detects the level of chemically aggressive, conductive liquids in containers