Float level switch ER-104
conductivefor liquids

float level switch
float level switch
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Characteristics

Technology
float, conductive
Medium
for liquids
Process temperature

Min.: -30 °C
(-22 °F)

Max.: 80 °C
(176 °F)

Description

For limit level detection in conductive liquids as well as control jobs in connection with conductive rod and suspension electrodes -Narrow construction – width 22.5 mm -Adjustable sensitivity -Closed circuit or load current principle selectable -Potential-free output as SPDT -Power supply 24 V DC optional Application The ER-104 electrode relay is used for conductive limit level detection. The areas of use cover all sectors where liquid and conductive media are to be detected or controlled. Limit value measurements (overflow, dry run, max. alarm) as well as min./max. control and pump control (hysteresis) can be implemented. Moreover the units can be used as contact protection relay if e.g. a transmitter allows only low contact loads although higher switching loads need to be handled. Construction For efficient utilisation of limited space the ER-104 is available in slimline con-struction of 22.5 mm width The unit basically consists of three functional units: the power supply, the switching amplifier with integrated hold function for easy realisation of min./max. controls and the switching relay with a potential free output contact as SPDT. It is possible to use the ER-104 electrode relay as a contact protection relay by combining it with our rod / suspension electrodes or "signal pickups" (e.g. pressure bell, float switch) Function A low alternating current flows once the electrode is submersed into a conductive liquid. This alternating current is evaluated by the switching amplifier (electrode relay). Exceeding an adjustable trigger threshold will energise the according relay The working direction of the ER-104 can be adjusted on the device

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