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AR500

AR500 Laser Position Sensors

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insert into the beam to use as a measurement target. The laser should be

aimed at a target such that the distance from the reference point to the

target can be measured.

Mount the sensor in such a way that the case is not twisted or warped.

The AR500 can be screwed on using two fastening screws 3.6 /06x7. The

fastening screws are not included in the scope of delivery.

Attach the cable(s) 8-pin connector to the plug(s) on the rear of the

sensor.

Connect the red (Supply +) and brown (Ground) wires of the sensor cable

to a 9 to 36 volt DC power supply (or use the power supply if the sensor

came with one).

1.3.2 Serial Data Wires

The serial connection is required to set up a unit for operation. If not

using the Acuity Connectivity kit which includes a serial cable, the

customer must make their own D-sub 9 serial connector

1.3.2.1 RS232 serial

Connect the RS232 wires to a 9 pin D-SUB male connector that can be

plugged into a COM port of a PC (RS232): Gray (Ground) to pin 5,

Green (Transmit) to pin 2, and Yellow (Receive) to pin 3. See section

3.2.2.

Use the Demo and Configuration Software (see Section 9) to connect

to the sensor via the serial port and get distance measurements.

1.3.2.2 RS485 serial

Connect the RS485 wires to a RS485 adapter connected to a PC COM port

Gray (Ground) to pin 5, Green (Data+) to pin 2, and Yellow (Data -) to

pin 3. See section 3.2.2.

Follow the same instructions for RS232 serial above.

1.3.3 Analog Output Signals

Quick suggestion: connect a DVM (digital volt meter) to the wires: Gray

to Common, Blue to mA input. Type QA. The output is a 4-20mA current

loop from 0 to the maximum range. The meter should read near 4 mA

when a target is placed in the laser beam near 0 mm and 20 mA near the

end of the range

AR500 User’s Manual

LLL00xxxx – Rev 1.0

3

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