DE3635
1
K-940MCW
Pet-Immune PowerCode Wireless PIR Detector
Installation Instructions
1. INTRODUCTION
The K-940MCW is a pet-immune, fully supervised ultra low-
current wireless PIR that incorporates a PowerCode transmitter.
Both transmitter and detector circuits are powered by an on-
board, long life 3.6 V Lithium battery.
As a pet immune motion detector, the K-940MCW utilizes TSI™
(Target Specific Imaging) technology that ensures immunity to
pets weighing up to 18 kg (40 lb).
As a supervised wireless detector, the K-940MCW has a 24-bit ID
code, randomly selected in the factory from over 16 million
possible combinations. This code is therefore unique and virtually
impossible to reproduce. Compatible PowerCode receivers, like
P, are designed to "learn" specific IDs and respond
only to them.
Following detection of a human intruder, the K-940MCW
triggers the on-board transmitter which transmits its specific
PowerCode ID followed by an
alarm signal and status
designators for
tampering and battery condition. Alarm and
other data are thus forwarded to the alarm control panel or to a
head-end computer, depending on the type of system in which
the detector is used.
Since messages transmitted by the K-940
MCW might collide with messages transmitted
by other PowerCode transmitters, an anti-
collision transmission sequence is used.
A periodic supervision message, distinguished by
a specific marker, is transmitted automatically
once in 60 min. (USA) or 15 min. (Europe)
or
according to the local standards. The receiver
is thus informed that the particular detector is
taking an active part in the wireless network.
After triggering the transmitter, the K-
940MCW inhibits itself to save battery power.
The detector rearms itself auto- matically
(reverts to the ready state) 2 minutes after
the last movement has been detected. An
LED/ WALK-TEST jumper is used to override
the 2-minute rearm timer during walk testing.
A programmable pulse counter is included for
maximum immunity against false alarms.
Figure 1
.
General View
2. SPECIFICATIONS
OPTICAL
Max. Coverage Range:
9 x 9 m
(30 x 30 ft) / 90°
Pet Immunity (not verified by
UL):
Immune to animals weighing
up to 18 kg (40 lb)
Vertical Adjustment:
3-position
adjustment scale: 1.8 m (6 ft),
2.1 m (7 ft) and 2.4 m (8 ft).
ELECTRICAL
Battery Type:
3.6 Volt lithium
thionyl chloride (LiSOCl
2
) battery,
size 1/2AA, Cat. No. 0-9913-0.
Nominal Battery Capacity:
1 Ah
Standby Current:
0.015 mA.
Figure 2.
Coverage Pattern
Transmit Current:
12 mA (including LED).
Battery Life Expectancy:
3 years (for typical use)
LED:
Lights for 2 seconds upon transmission and upon motion
detection in the walk test mode.
Detector:
Dual-element low-noise pyroelectric sensor.
Pulse Counter:
Programmable to 1, 3 or 5 pulses.
Rearm Timer:
2 minutes after the last alarm; timer disabled in the
walk test mode.
WIRELESS
Frequencies (MHz):
315, 433.92, 868.95, 869.2625 according to
local requirements
(UL approval for 315 MHz only).
Note:
The K-940MCW is compatible with the UL-listed model
PowerMax control unit.
Transmission Sequence:
3 data bursts at variable intervals within
3 seconds.
ID:
24-bit factory-selected code, >16 million possible combinations.
Total Message Length:
36 bits
Battery Supervision:
Automatic reporting of low-battery status
with each alarm and with periodic autotest.
Tamper Alert:
Reported at 3-minute intervals.
ENVIRONMENTAL
Operating Temperature:
-10
°
to 49
°
C (14
°
to 120
°
F).
Note:
For C-UL listed applications, the operating temperature
range 0 to 49
°
C and 93%relative humidity, non-condensing.
Storage Temperature:
-20
°
to 60
°
C (-4
°
F to 140
°
F).
RFI Protection:
> 20 V/m up to 1000 MHz.
PHYSICAL
Dimensions (H x W x D):
104 x 60 x 32 mm (4.1 x 2.4 x 1.3 in.)
Weight:
71 g (2.5 oz);
Color:
White.
Compliance with Standards:
Meets FCC Part 15, MPT1349,
Directive 1999/5/EC and EN 50131-1 Grade 1 Class II.
OPTIONAL MOUNTING ACCESSORIES
BR-1:
Swivel bracket for wall mounting;
BR-2:
BR-1 + corner adapter;
BR-3:
BR-1 + ceiling adapter.
PATENTS
: U.S. Patent No.: 6,211,522
3. INSTALLATION
Note:
For C-UL listed applications, the unit shall be installed in
accordance with Part 1 of the Canadian Electrical Code.
Since this is a PowerCode type transmitter, it is recommended to
power it up and let the target receiver “learn” the transmitter’s ID
before actual installation.
3.1 Battery Insertion
(see Figure 3)
A.
Insert the battery into the battery clip - observe polarity.
B.
Press the tamper switch lever once and release it. This will
perform the reset necessary for smooth power up.
C.
Put the cover on and watch the LED. It will flash once in 2
seconds for at least 15 seconds until the sensor stabilizes.