Greengate VAC-U Technical Data

Technical Data

Technical Data

Effective November 5, 2014

VAC-U – MicroSet Ultrasonic
Low Voltage Vacancy Ceiling Sensor

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Project Date

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Overview

The MicroSet Ultrasonic Low Voltage Vacancy Ceiling Sensor
increases energy savings by requiring a Manual On input to turn ON
the lighting.

Features

MicroSet self-adjusting time delay and sensitivity

Optional built-in light level sensor

Optional BAS/HVAC isolated relay

Products tested to NEMA WD 7 - 2011 Occupancy Motion
Sensors Standard

Requires Manual On for activation

Ultrasonic

Activated

MicroSet

Self-Adjusting

Technical Data

November 2014

VAC-U – MicroSet Ultrasonic Low Voltage Vacancy Ceiling Sensor

Specifications

Technology Ultrasonic (US)
Power

Requirements

Time Delays Self-adjustable, 15 seconds/test (10 min. Auto), or

Coverage 500, 1000 and 2000 sq. ft. (56 ft. x 16 ft. corridor)
Light Level

Sensing
(-R Models)

Operating
Environment

Housing Durable, injection molded housing. Polycarbonate

Size 1.42”H x 4.5”W (36.068mm x 114.3mm)
Mounting Mounts directly to a ceiling tile, to a 4” square box

LED Indicators Green LED for Ultrasonic detection
Standards FCC Compliant

Input

10-30 VDC from Greengate Switchpack or
Greengate system

Maximum current needed is 25mA per sensor

Output

Open collector output to switch up to ten
Greengate Switchpacks

BAS with an Isolated Form C Relay in (-R) model

Isolated Form C Relay Ratings: 1A 30 VDC/VAC

Selectable 5, 15, 30 minutes, or Zero Time Delay

0 to 300 foot-candles

Temperature: 32°F - 104°F (0°C - 40°C)

Relative humidity: 20% to 90%, non-condensing

For indoor use only

resin complies with UL 94V-0

and round mud ring or to a 4" octagon box

cULus Listed
RoHS Compliant

Description/Operation

The Ultrasonic Sensor uses the Doppler principle. It produces a
low intensity, inaudible sound and detects changes in sound waves
caused by motion, such as walking into the room, reaching for the
telephone or turning in a chair. They are volumetric in nature and
therefore not line-of-sight dependant. Since they fill the space with
these sound waves, they are excellent in bathrooms with stalls,
enclosed hallways, or other oddly shaped rooms. In addition, they
are much more sensitive to smaller motions. The sensor includes
self-adaptive technology that continuously self-adjusts sensitivity
and Time Delay in real-time, maximizing the potential energy savings
that are available in the particular application. The lights are turned
ON by activating a momentary switch (model # GMDS-*) that is
connected to the sensor. The MicroSet Ultrasonic Low Voltage
Ceiling Sensor has an ambient light level sensor. When enabled, the
Daylighting feature prevents lights from turning ON when the room
is adequately illuminated by natural light.

Applications

Conference Rooms

Open Office Areas

Restrooms (With Partitions)

Restrooms (Non-Partitioned)

Hallways

Other Indoor Office Spaces

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