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Rockwell Automation 873P Programmable Ultrasonic Sensors User Manual

Important: save these instructions for future use

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Installation Instructions

Bulletin 873P Programmable 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 Programmable Ultrasonic Sensors are

self-contained solid-state devices designed for noncontact

sensing of solid and liquid objects.
These sensors have two programmable setpoints with

sourcing (PNP) outputs that can be configured for either

normally open or normally closed operation. The setpoints

can be programmed to switch the discrete output at any

target position within the sensor’s range. In addition, they

also feature either a 4--20mA or 0--10V DC analog output

depending on the model. The slope of the analog output is

scaled between the limits of the setpoint values.
Programming of the setpoints and the output configuration

is done using the setup pushbutton on the rear of the

housing. These devices can be useful for many applications

including: level control, diameter measurement, distance

measurement, and presence detection.

873P Programmable Models

Sensing Range—

mm (inches)

Output Configuration

Catalog Number

150 to 1500

(5.98 to 59.10)

2 PNP (NO or NC) with

4--20mA

873P- DCAC1S- D5

350 to 3500

(13.78 to 137.80)

873P- DCAC2S- D5

150 to 1500

(5.98 to 59.10)

2 PNP (NO or NC) with

0 -- 10V DC

873P- DCAV1S- D5

350 to 3500

(13.78 to 137.80)

873P- DCAV2S- D5

Specifications

Output Configuration

Two discrete PNP (Programmable N.O./N.C.)

Analog Current: 4--20mA

Analog Voltage: 0--10V DC

Load Current

<100mA (Open collector)

Leakage Current

<0.5mA

Current Consumption

<45mA

Operating Voltage

19 to 30V DC

Voltage Drop

<5V DC

Repeatability

0.4%

Hysteresis

1% typical

Linearity 0.5%

Ultrasonic Frequency

130, 200kHz

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

Output LED

Yellow: (2) P1, P2 output; Green: Alignment/echo

Adjustment

Via setup pushbutton

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

Shock

30g, 11ms

Vibration

55Hz, 1mm amplitude, 3 planes