Rockwell Automation 873P Analog or Discrete Ultrasonic Sensors User Manual

Important: save these instructions for future use

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Installation Instructions

Bulletin 873P Ultrasonic Proximity Sensor

IMPORTANT: Save these instructions for future use.

IMPORTANT: Solid state devices can be

susceptible to radio frequency (RF)

interference depending on the

power and the frequency of the

transmitting source. If RF

transmitting equipment is to be used

in the vicinity of the solid state

devices, thorough testing should be

performed to assure that transmitter

operation is restricted to a safe

operating distance from the sensor

equipment and its wiring.

ATTENTION: If a hazardous condition can

result from unintended operation of this

device, access to the sensing area should

be guarded.

Description

Bulletin 873P Ultrasonic Sensors are self-contained

solid-state devices designed for noncontact sensing of solid

and liquid objects. They are available in several sensing

ranges with either an analog or discrete output depending

on the model.
The discrete output models have a normally open PNP

output that is switched when the target is within range.

They have a four-turn potentiometer to adjust the far limit of

the sensing range in order to ignore background targets.

The analog output models provide an output current or

voltage that varies linearly with the target distance within its

specified sensing range. Analog models are equipped with

either 4--20mA or 0--10V DC outputs. These devices can be

useful for many applications including: level monitoring,

diameter measurement, distance measurement, and web

tension.

873P Models

Sensing

Range

mm (inches)

Output Configuration

PNP

Normally Open

4 to 20mA

0 to 10V DC

100 to 600

(3.94 to 23.62)

873P- DBNP1- F4

873P- DBAC1- D4 873P- DBAV1- D4

200 to 1500

(7.87 to 59.06)

873P- DBNP2- F4

873P- DBAC2- D4 873P- DBAV2- D4

300 to 2500

(11.81 to

98.43)

873P- DCNP1- D5 873P- DCAC1- D5 873P- DCAV1- D5

Specifications

Discrete

Analog

Current

Analog

Voltage

Output

Configuration

Normally Open,

PNP

4 to 20mA

0 to 10V DC

Load Current

<500mA

Leakage Current

<0.5mA

Current

Consumption

< 35mA

Operating Voltage

18 to 30V DC

Voltage Drop

< 3.5V DC

Repeatability

0.2%

Hysteresis

2.5% typical

Linearity

0.3

Ultrasonic

Frequency

130, 180, 300kHz

Ultrasonic

Beam Angle

8_

Short Circuit

Protection

Incorporated

Overload Protection

Incorporated

False Pulse

Protection

Incorporated

Transient Noise

Protection

Incorporated

Reverse Polarity

Protection

Incorporated

Approvals

cULus listed and CE marked for all applicable

directives

Housing Material

Plastic -- PBT

Enclosure Rating

IP67

Connection

Micro quick-disconnect (18mm discrete models have

12 inch pigtail)

Output LED

Yellow

Adjustment

Potentiometer

Operating

Temperature

--15 to 70_C (5 to 158_F)

Shock

30g, 11ms

Vibration

55Hz, 1mm amplitude, 3 planes

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