ALSCHU 300 FG, Electrode Controller, Field Frame

Applications:
Automatic control of drainage pumps and wastewater lifting plants.
Overflow and low liquid level control, automatic filling and draining of tanks, level control of liquid reservoirs, aquariums, storage tanks, etc.
The ALSCHU 300 ... is especially suitable for detection of conducting media (water, etc.). It is less applicable for badly or non conducting media (oils or fatty liquids), conducting foaming liquids or media causing electrically isolating deposits on the electrodes.

 

Description:
The measuring method for level detection is based on the conductive principle, i.e. the electrical conductivity of the media is monitored. If the switching amplifier detects a value below the set conductivity the state ?media detected? is output, otherwise ?no media?. Depending on number and design of the connected level sensors the device can be used
for level detection (min-/max- detection) or as 2-point controller.

Technical data:
Power supply: 18 V... 250 V AC/DC
                           wide-range power supply
Power consumption: < 2 VA
2 signal inputs: Triggering level: < 80 kO
                             Response time: 2 s
1 Relay output: Contact: change-over contact,
                            potential-free
                            Switching voltage: = 250 V AC
                            Switching current: = 5 A (ohmic load)
Protection class: IP65
Electric connection: via 3 PG cable glands

                                    and screw terminals
Working temperature: -20 ... +60 °C
Storage temperature: -40 ... +80 °C
Condensation: not allowed
Housing: field frame
                  100 x 100 x 60 mm (W x H x D)

                  without PG cable glands
Functions / displays: Red / green LED:
            display for switching state of relay, switching
            state of sensors, status (supply) of device

Please note: This electrode controller is supplied without electrodes. These need to be ordered separately!