1. Access Programming Mode. Push and hold the Limits button until the green indicator LED turns off (approximately 2

seconds).

LED Indicator

Status

Green

Turns off

Amber

On to indicate the sensor is ready to learn the first limit

Red

Flashes to indicate the strength of the echo, or it is off if no target is present

2. Set the first limit (or single set point). Place the target at the first limit and press the Limits button for less than 2

seconds.

LED Indicator

Status

Green

Remains off

Amber

Flashes at 2 Hz to indicate the sensor is ready to learn the second limit

Red

On for a moment, then resumes flashing to indicate the strength of echo

3. Set the second limit. Place the target at the second limit and press the Limits button for less than 2 seconds.

LED Indicator

Status

Green

Remains off, then turns on (returns to Run mode)

Amber

On for a moment, then is either on or off to indicate the output state (returns to Run mode)

Red

On for a moment, then resumes flashing to indicate the strength of the echo (returns to Run

mode)

Notes Regarding Window Limit Programming

1. Either the near or far limit may be programmed, first.

2. There is a 2-minute time-out for programming the first limit. The sensor returns to Run mode with the previously

programmed limits. There is no time-out between programming of the first and second limit.

3. Cancel the programming sequence at any time by pressing and holding the button for longer than 2 seconds. The

sensor returns to Run mode with the previously programmed limits.

4. If a limit is rejected during either programming step, the sensor reverts to the first limit programming step,

indicated by the Green LED (off), the Red LED (flashing to indicate signal strength), and the Amber LED (on).

5. If both limits are accepted, the sensor returns to Run mode, which is indicated by the Green LED (on).

6. During limit programming, the 5-segment moving dot indicator displays the relative target position between 50

mm (2 inches) and 250 mm (the maximum recommended far limit position is 250 mm (10 inches)).

7. If the target is father than 250 mm (10 inches), the 5th segment of the moving dot indicator flashes to indicate

that a valid echo is received, but the target is beyond the recommended 250 mm (10 inches) maximum far limit.

8. If the target is held at the same position for programming of both limits, the sensor establishes a 200 mm-wide

sensing window, centered on the target position.

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