PL322 Small range ultrasonic level sensor

Adjusting the sound cone characteristics:

The ultrasonic sensor enables two different shapes of the sound cone, a wide angle sound cone and a small angle sound cone.

1. Small angle sound cone

2. Wide angle sound cone

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Products Description

Adjusting the evaluation limits

The ultrasonic sensor features an analogue output with two teachable evaluation limits. These are set by applying the supply

voltage - UB or + UB to the TEACH-IN input. The supply voltage must be applied to the TEACH-IN input for at least 1 s. LEDs

indicate whether the sensor has recognised the target during the TEACH-IN procedure. The lower evaluation limit A1 is taught

with - UB, A2 with + UB.

Two different output functions can be set:

1. Analogue value increases with rising distance to object (rising ramp)

2. Analogue value falls with rising distance to object (falling ramp)

Evaluation limits may only be specified within the first 5 minutes after power on. To modify the evaluation limits later,the user may specify the desired values only after a new Power On.

TEACH-IN rising ramp (A2 > A1)

- Position object at lower evaluation limit

- TEACH-IN lower limit A1 with - UB

- Position object at upper evaluation limit

- TEACH-IN upper limit A2 with + UB

TEACH-IN falling ramp (A1 > A2):

- Position object at lower evaluation limit

- TEACH-IN lower limit A2 with + UB

- Position object at upper evaluation limit

- TEACH-IN upper limit A1 with - UB

Default setting

A1: unusable area

A2: nominal sensing range

Mode of operation: rising ramp

Product Features

Adjusting the sound cone characteristics:

The ultrasonic sensor enables two different shapes of the sound cone, a wide angle sound cone and a small angle sound cone.

1. Small angle sound cone

- switch off the power supply

- connect the Teach-input wire to -UB

- switch on the power supply

- the red LED flashes once with a pause before the next.

- yellow LED: permanently on: indicates the presence of an object or disturbing object within the sensing range

- disconnect the Teach-input wire from -UB and the changing is saved

2. Wide angle sound cone

- switch off the power supply

- connect the Teach-input wire with + UB

- switch on the power supply

- the red LED double-flashes with a long pause before the next.

- yellow LED: permanently on: indicates an object or disturbing object within the sensing range

- disconnect the Teach-input wire from + UB and the changing is saved

Product Specification

Technical data

General Specifications

Sensing distance 70…1000mm

Adjustment range 90…1000mm

Unusable area 0…70mm

Standard target plate 100mm×100mm

Transducer frequency About 255kHz

Indicators/Operating means

LED blue Power on

LED yellow indication of the switching state

Flashing:program function object detected

LED red permanently red: Error Red,flashing:program function,object not detected

Electrical specifications

Operating voltage U_B 10…30VDC,ripple10%ss

No-load supply current ≤45mA

Output

Output type 1 analogue output 4…20mA

Resolution 0.35mm at max.sensing range

Deviation of the characteristic

curve ±1% of full-scale value

Repeat accuracy ±0.1% of full-scale value

Load impedance 0…300 Ohm

Temperature influence ±1.5% of full-scale value

Ambient conditions

Ambient temperature -25…70℃

Storage temperature -40…85℃

Mechanical specifications

Protection grade IP67

Connection Connector M12x1,4-PIN

Material Housing Plastic

Transducer epoxy resin/hollow glass sphere mixture;

Polyurethane foam

Weight 60g

Product Dimensions

Product Features

Adjusting the sound cone characteristics:

The ultrasonic sensor enables two different shapes of the sound cone, a wide angle sound cone and a small angle sound cone.

1. Small angle sound cone

- switch off the power supply

- connect the Teach-input wire to -UB

- switch on the power supply

- the red LED flashes once with a pause before the next.

- yellow LED: permanently on: indicates the presence of an object or disturbing object within the sensing range

- disconnect the Teach-input wire from -UB and the changing is saved

2. Wide angle sound cone

- switch off the power supply

- connect the Teach-input wire with + UB

- switch on the power supply

- the red LED double-flashes with a long pause before the next.

- yellow LED: permanently on: indicates an object or disturbing object within the sensing range

- disconnect the Teach-input wire from + UB and the changing is saved

Product Dimensions

Product Specification

Technical data

General Specifications

Sensing distance 70…1000mm

Adjustment range 90…1000mm

Unusable area 0…70mm

Standard target plate 100mm×100mm

Transducer frequency About 255kHz

Indicators/Operating means

LED blue Power on

LED yellow indication of the switching state

Flashing:program function object detected

LED red permanently red: Error Red,flashing:program function,object not detected

Electrical specifications

Operating voltage U_B 10…30VDC,ripple10%ss

No-load supply current ≤45mA

Output

Output type 1 analogue output 4…20mA

Resolution 0.35mm at max.sensing range

Deviation of the characteristic

curve ±1% of full-scale value

Repeat accuracy ±0.1% of full-scale value

Load impedance 0…300 Ohm

Temperature influence ±1.5% of full-scale value

Ambient conditions

Ambient temperature -25…70℃

Storage temperature -40…85℃

Mechanical specifications

Protection grade IP67

Connection Connector M12x1,4-PIN

Material Housing Plastic

Transducer epoxy resin/hollow glass sphere mixture;

Polyurethane foam

Weight 60g