♦
GENERAL INFORMATION
SPECIFICATIONS:
Voltage:
24VDC
Current Consumption:
9mA
Power Supply:
6400 Power Pack
Operating Temp:
0°C to 55°C (32°F to 131°F )
Adjustable Time Delay:
5 Sec (test mode) to 30 Min
Walk-Through Mode
3 minutes if no activity in 30 seconds
PIR Adjustment:
50% or 100% (Dip Switch 1)
Light Level Adjustment:
100 Lux - Daylight (Trimpot)
PIR Coverage:
Up to 1200 ft
2
NOTES:
-
Keep these instructions available for future reference.
- Indoor use only.
DESCRIPTION:
The Model 6420, 360° PIR Occupancy
Sensor turns lights on and off
automatically based on thermal motion
detection. It includes a light level
adjustment that will keep lights off if
there is enough daylight already present
in the coverage area. After no
movement is detected for the set time
delay, the lighting is switched off. A
"walk-through" mode is available that will turn the lights off after only 3 minutes if no
movement is detected after 30 seconds of an occupancy detection. This feature is well
suited for hallways and closets.
The Model 6420 can also be set to automatically adjust the time delay based on traffic
patterns in the coverage area. It works well with the Model 6400 Power Pack.
♦
COVERAGE PATTERN
The 6420 sensor provides a 360° coverage pattern up to 1,200 sq-ft. The coverage
shown in Figure-1 represents walking motion at a mounting height of 8 feet. For
building spaces with lower levels of activity or with obstacles and barriers, coverage size
may decrease.
♦
PLACEMENT GUIDELINES
Depending upon obstacles such as furniture or partitions, the area of coverage may be
more or less than the sensing distances shown in the coverage pattern (see Figure-1).
This must be considered when planning the number of sensors and their placement. It
is also recommended to place the sensor 4-6 feet away from air supply ducts as rapid
air currents or the differences in temperatures could cause false activations.
Mount the sensor to the ceiling. The 6420 is designed for a ceiling height of about 8-10
feet. Mounting above or below this range will significantly affect the coverage patterns.
Be aware as you decrease the mounting height, you decrease the range and increase
the sensitivity to smaller motions. Conversely, when you increase the mounting height,
you increase the range and decrease the sensitivity to smaller motions. At heights of
more than 12-14 feet, you may start to significantly reduce sensitivity. As a general rule,
each occupant should be able to clearly view the sensor.
Often the best location to install a model 6420 occupancy sensor in a closed office is off-
center (see Figure-2). Avoid placing the sensor directly in line with an open door
through which it has a clear view out, as the sensor may detect people walking by.
For open office area coverage, install multiple sensors so that there is an overlap with
each adjacent sensor's coverage area. (see Figure-3)
♦
WIRING
CAUTION:
BE SURE TO DISCONNECT POWER FROM THE CIRCUIT BREAKER
BEFORE WIRING!
NOTE:
EACH 6400 POWER PACK CAN SUPPLY POWER FOR UP TO SIX 6420
SENSORS. WHEN USING MORE THAN SIX SENSORS, MULTIPLE POWER PACKS ARE
REQUIRED.
Standard Wiring (Low Voltage Connections):
+24VDC (RED) from power pack to "+24VDC" terminal on sensor.
Common (BLACK) from power pack to "Common" terminal on sensor.
Control (BLUE) from power pack to "Control Out" terminal on sensor.
NOTE:
TO ADD A MANUAL MOMENTARY SWITCH, CONNECT ONE SIDE OF THE
SWITCH TO THE "COMMON" TERMINAL ON THE SENSOR AND CONNECT THE OTHER
SIDE OF THE SWITCH TO THE "MANUAL ON" TERMINAL ON THE SENSOR.
♦
INSTALLATION
CAUTION:
INSTALLATION BY A LICENSED ELECTRICIAN IS RECOMMENDED.
INSTALLATION AND USE OF THIS EQUIPMENT SHOULD BE IN ACCORDANCE WITH
PROVISIONS OF THE U.S. NATIONAL ELECTRICAL CODE, APPLICABLE LOCAL CODES,
AND PERTINENT INDUSTRY STANDARDS.
CAUTION:
USE THIS DEVICE WITH COPPER WIRE ONLY.
CAUTION:
IMPROPER WIRING CAN CAUSE DAMAGE TO THE POWER PACK,
LIGHTING SYSTEM, OCCUPANCY SENSOR(S), AND OTHER CONTROL DEVICES.
NOTE:
MOST APPLICATIONS REQUIRE UL LISTED, 18-22 AWG, 3-CONDUCTOR,
CLASS 2 CABLE FOR LOW-VOLTAGE WIRING.
WARNING: TO AVOID FIRE, SHOCK, OR DEATH, TURN OFF POWER
AT CIRCUIT BREAKER OR FUSE AND TEST THAT POWER IS OFF
BEFORE WIRING SENSORS OR POWERPACKS!
1) Verify power has been turned off at the circuit breaker.
2) Refer to the WIRING & PLACEMENT GUIDELINES sections for planning
and laying out the low-voltage wiring, power pack(s), and sensor(s).
3) Pull the low-voltage wires from the power pack into the octogonal junction
box through the conduit knockout (See Figure-5).
4) Connect the low-voltage wires to the appropriate wires on the sensor.
Model 6420
360º Passive Infrared Low-Voltage Occupancy Sensor
INSTRUCTIONS
Figure-2
Figure-1
Figure-3
Figure-4
Figure-5
BX1265A, 03/07/14
