FA Product

Liquid Level Sensor

Capacitance-type Liquid-level Sensor

CLA Series

Separated amplifier-type sensor allows detection of the liquid level without coming in contact with the liquid.

Internal liquid level can be detected by simply placing the electrodes on the sides of a nonmetallic container, gage pipe, etc.

Specifications

Electrodes

Model

CLA-D30P150

CLA-D30P250

CLA-D30P350

Applicable pipe diameter

Φ30mm *¹

Liquid-level range

0 to 150mm

0 to 250mm

0 to 550mm

Standard cable length

2m (External diameter Φ4mm Shielded twisted pair cable)

Operating humidity

35 to 75% RH

Insulation resistance

50 MΩ min. between lead wire and case (insulation resistance tester of 500V DC)

Voltage resistance

For one minute at 500 VAC, 50/60Hz between lead wires and electrode surface.

Protective construction

IP-63

Installation

Wind and band together and fix with the provided insulation lock tie.
Secure with double-sided adhesive tape on a flat surface.

*¹ : Securing is possible from Φ24 to a flat surface. Please consult us for details.

Amplifier

Model

CLA-A01

Power supply

DC 12V/DC 24V ±10%

Consumption current

60mA or less

Liquid-surface detection range

Electrode type

Liquid-level detection range

Liquid relative permittivity

Liquid-surface detection range

CLA-D30P150

0 to 150mm

1.8 or more

Liquid-surface detection range

CLA-D30P150

0 to 250mm

1.8 or more

Liquid-surface detection range

CLA-D30P550

Under development

1.8 or more

Analog output

Voltage output: 1V to 5V at upper and lower limit of the liquid surface
Output resistance: 1 KΩ or less

Control output

Upper limit
control output

ON beyond the upper limit setting level
(variable)

Control output

Lower limit
control output

ON below the lower limit setting level
(variable)

Control output

Difference: 10% or less than the set level

Control output

Output circuit structure: NPN transistor open collector

Control output response time

Less than one second

Indicator lamp

Power indication

Green lamp lights up in power-on stateBlinks once when teaching has beencompleted.

Indicator lamp

Upper limit control indication

Red lamp lights while the upper limit control output is being operated.

Indicator lamp

Lower limit control indication

Yellow lamp lights while the lower limit　control output is being operated.

Temperature condition influences

Less than ±15% of 3V analog output　in 0 to 40°C *²

Voltage influences

Less than ±5% of 3V analog output at the applied voltage 24 VDC ±10% *²

Insulation resistance

50MΩmin. between terminal and case (insulation resistance tester of 500V DC)

Voltage resistance

For one minute at 500 VAC, 50/60Hz between lead wires and electrode surface.

Installation

35mm DIN mounting rail.

*² : This is a reference value for standard electrodes. It varies according to the type of liquid to be detected, and dimensions of the gage pipe. Contact us for details.