Level monitoring and control of conductive liquids and powders, e.g. maximum and minimum fill level, protection against overfilling and dry running Monitoring and control of the mix ratio for conductive liquids General resistance monitoring tasks, e.g. recording temperature limits with PTC Contact protection relay with delay
Features
3 electrode connections for 2-point and 1-point level control Measuring circuit for electrodes works on AC voltage generated internally in the device (approx. 30 Hz); therefore no electrolysis occurrence in the fluid The measuring circuit galvanically isolated from the mains is immune from high levels of interference Max. lead length to the electrodes: 3000 m Wide setting range: 2 kΩ → 450 kΩ which enables differentiation between liquid and foam Response and fallback delay: 0.2 s → 20 s, adjustable separately for MIN and MAX level Programmable for operating or rest current principle LEDs to indicate operational readiness and contact position Output contact 2 changeovers Overall width: 22.5 mm
Standards
IEC/EN 60 255, DIN VDE 0435-303
Approvals
CE
Liquid Level Relays are used to monitor the levels of conductive liquids, and are available in Up/Down, Minimum, Maximum, and Fill/Empty variations. Liquid Level Relays are straightforward to install and safe to use.
Application Examples
Liquid Level Relays (Conductive Level Sensors) are used in a wide variety of applications including waste water management and the monitoring and management of corrosive liquid media, and designed specifically to provide for the:
Monitoring and control of liquid levels Protection of pumps against dry running Ability to detect liquid leaks in a system Control of media mixing ratios Control of liquid levels
Level monitoring and control of conductive liquids and powders, e.g. maximum and minimum fill level, protection against overfilling and dry running Monitoring and control of the mix ratio for conductive liquids General resistance monitoring tasks, e.g. recording temperature limits with PTC Contact protection relay with delay
Features
3 electrode connections for 2-point and 1-point level control Measuring circuit for electrodes works on AC voltage generated internally in the device (approx. 30 Hz); therefore no electrolysis occurrence in the fluid The measuring circuit galvanically isolated from the mains is immune from high levels of interference Max. lead length to the electrodes: 3000 m Wide setting range: 2 kΩ → 450 kΩ which enables differentiation between liquid and foam Response and fallback delay: 0.2 s → 20 s, adjustable separately for MIN and MAX level Programmable for operating or rest current principle LEDs to indicate operational readiness and contact position Output contact 2 changeovers Overall width: 22.5 mm
Standards
IEC/EN 60 255, DIN VDE 0435-303
Approvals
CE
Liquid Level Relays are used to monitor the levels of conductive liquids, and are available in Up/Down, Minimum, Maximum, and Fill/Empty variations. Liquid Level Relays are straightforward to install and safe to use.
Application Examples
Liquid Level Relays (Conductive Level Sensors) are used in a wide variety of applications including waste water management and the monitoring and management of corrosive liquid media, and designed specifically to provide for the:
Monitoring and control of liquid levels Protection of pumps against dry running Ability to detect liquid leaks in a system Control of media mixing ratios Control of liquid levels