Fill level sensor

LCPB series

Features:

Continuous, contact-free level monitoring over wide measurement ranges
Immune to almost any interference from the outside
Capacitive measurement of many liquids and solids
Small sized, easily mountable outside of container
Accurate measurement even with air gaps between sensor and container, allowing operation e.g. with exchangeable tanks
Various custom options available

Technical data:

Measuring range	see outline drawing (others on request)
Measurement type	capaTEC®
Permittivity of the medium	4 < er < 82
Wallthickness	typ. up to 5mm^*1 (e.g. glas, PE, PP, ABS, others)
	others)
Air gap	typ. up to 3mm^*1
Accuracy	typ. ±2mm^*1
Resolution	typ. 11 bit
Response time	typ. 100 ms
Power supply	5V DC, max. 30mA
Output	I²C, PWM on request^*2
Output bus voltage	3.3 up to 5.0V DC I2C (open-drain)
	5V DC-tolerant 3.3V DC PWM
	(push-pull)
Operating temperature	-25 to +85°C
Storage temperature	-40 to +100°C
Humidity	max. 95% r.H., non-condensing
Max. height over sealevel	0 up to 2000m (others on request)
Protection class	IP20

^*1 Sensors measures capacitance. Accuracy of level reading is function of number of parameters including container material, wall thickness, air gaps, media and others. Typical values refer to a random water tank setting.

^*2 EBE offers sensor interface boxes including software to allow PWM outputs to be set and adjusted.

Note:
Sensor output is calibrated and temperature compensated. To compensate for the application environment, an one-point calibration after mounting in the end application is generally recommended. Capacitive sensors are for use with non-metallic container material only!

capaTEC2 vs. capaTEC4:
capaTEC2 and capaTEC4 are different EBE measurement methods to determine the capacitive value (and level therefore). Both measurement methods have their specific advantages and disadvantages.
capaTEC2 measurement is generally recommended with media of a permittivity of >20 (e.g. water). For media with permittivity of less than 20, capaTEC4 may provide some advantages. EBE recommends comparing values for both capaTEC2 and capaTEC4 in the end application. This should quickly reveal the preferred method.

Electrical connection:
A 2mm (0.079") 4-pole shrouded SMT header is assembled on the sensor PCB. To avoid mechanical stress on the connector, a cable fixation shall be used to avoid damaging the sensor.

Pin	I²C	*PWM^3**
1	VCC	VCC
2	SDA	PWM
3	SCL	n/a
4	Ground	Ground

^*3 EBE offers sensor interface boxes including software to allow PWM outputs to be set and adjusted.

Possible connectors (female crimp housing 4-pole) for LCPB include e.g. Molex 0510650400.

You will find further mounting instructions in the datasheet.

Manufacturer: EBE

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