Larco Division of Atek Companies 336806 User Manual

USER GUIDE>AUTOMATIC DOOR PRODUCTS

Microwave Contactless
Sensor-Switch

TECHNICAL SPECIFICATIONS

Technology : Microwave

Radiated Frequency : 10.525 +/-0.005GHz

Detection Range : 4.0 - 20 in

Detection Mode : Motion

Operation Mode

Sense : Activate when there is a motion

Switch : Relay toggles when there is motion

DESCRIPTION

with cover separated

Supply Voltage : 12 - 24 VAC/DC

Mains Frequency : 50 - 60 Hz

Power Consumption : < 1W @ 12V

Relay Output Ratings : 24 VDC/120VAC

Holding Time (Adjustable)

‘Sense’ Mode : 0.5 - 10 sec

Masking Time (Adjustable)

The U-WAV is a microwave contactless sensor switch that can
be operated either in the ‘Sense’ or ‘Switch’ mode. In the
‘Sense’ mode, detection of motion will lead to the activation
of output relay. In the ‘Switch’ mode, the output relay will
toggle when motion is detected.

The U-WAV is particularly suitable for clean rooms, sterile areas
and hospitals where a very hygenic environment is required.

‘Switch’ Mode : 3 - 10 sec

Temperature Range : -4 - 131 F

Relative Humidity : up to 95%

Weight : < 3 oz

Dimensions : 3.4” x 3.4” x 1.2”

Front Cover Color : White

Terminal blocks for power
supply cables and relays

U-WAV

Cover Frame

INSTALLATION & MOUNTING INSTRUCTIONS

1. Cut out a hole in the wall.
(Dimension: TBD)

2. Cut out a hole for cable entry
on the mounting box. (Not sup­plied).

Hold
Time

PT1 PT2

Sensitivity

Supply Volt-

3. Pull the cable through the hole
and secure it to the terminal block
with the screws.

COM

NC

NO

For ‘Switch’ mode,
short the jumper.

Sense’ or ‘Switch’
mode jumper

4. Select operation mode:
(‘Sense’ mode - Open)
(‘Switch’ mode - Short)

5. Select required detection
range, adjust PT1 (Sensitivity).

For ‘Sense’ mode ONLY

6. Adjust PT2 (Hold time) to select
desired holding time.

PS 333, OCT 2007 PAGE 1

LARCO 1902 13th Street, Brainerd, MN 56401

PHONE [phone] FAX [phone] WEB www.larcomfg.com

USER GUIDE>AUTOMATIC DOOR PRODUCTS

INSTALLATION & MOUNTING INSTRUCTIONS (cont.)

LED

9. Check the sensitivity and repeat
setp 5 if necessary.

10. Push the sensor swtich into the
box and screw the sensor tight.

11. Push the cover frame back onto
the sensor to secure.

7. Use a screwdriver to pry the
cover frame from the sensor
switch.

8. Power up the sensor and check
whether the LED lights up.

SETTING THE SENSING FIELD AND HOLDING TIME

APPLICABLE ONLY FOR ‘SENSE’ MODE

0.5 sec

10 sec

MIN.

PT2

PT2

PT1

HOLDING TIME SENSING FIELD

TROUBLE SHOOTING

SYMPTOM CORRECTIVE ACTION

LED does not light up or blink (upon being
powered up).

Door does not open. 1. Check if LED is switched ON.

Door remains permanently open. 1. Check Holding Time (PT2).

1. Check if the cable is screwed tight.

2. Check whether the supply is switched ‘ON.’

2. Check the sensor’s connection.

3. Check the sensor Output (relay NC/NO)
connections.

2. Check for surrounding disturbance.

3. Reduce the Sensitivity level (PT1)

4. Check if it is in ‘Switch’ mode.

MAX.

PT1

FCC ID: RQL336806
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must ac­cept any interference received, including interference that may cause undesired operation.
Note: This equipment has been tested and found to comply with the limits for a Class B
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there
is no guarantee that interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be determined by

turning the equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:

-Reorient or relocate the receiving antenna.

-Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.

-Consult the dealer or an experienced radio/TV technician for help.

The user is cautioned that changes and modifications made to the equipment without the
approval of the manufacturer could void the users authority to operate this equipment.

PS 333, OCT 2007 PAGE 2

LARCO 1902 13th Street, Brainerd, MN 56401

PHONE [phone] FAX [phone] WEB www.larcomfg.com