GENERAL DESCRIPTION
GENERAL DESCRIPTION
The GEM-PIR is an advanced PIR sensor designed for use
with Napco’s GEM-Series wireless receivers. The unit is
powered by two 3-volt Type DL123A lithium batteries (sup-
plied) for long service life. When battery voltage drops below
normal, a low-battery report will be sent to the receiver.
Coding switches are not used in the GEM-PIR. Each
transmitter has a unique factory-programmed
RF ID
code
(printed on the unit) that distinguishes itself to the receiver.
(Note:
Note: See control-panel instructions for entering this six-
digit hexadecimal code and checksum digit into the panel;
be sure to enter all numbers and/or letters, including lead-
ing zeros, if any.)
SPECIFICATIONS
SPECIFICATIONS
PIR Coverage (l x w):
PIR Coverage (l x w): 50’ x 50’ (15.2m x 15.2m) at 20°C
(68°F), typical.
Operating Temperature:
Operating Temperature: 0° to + 50°C (32° to 122°F)
Mounting:
Mounting: Wall or corner, 10’ (3m) max.
Dimensions:
Dimensions: 4.5’’ x 2.5’’ x 1.7’’ (11.4cm x 6.4cm x
4.3cm) (HxWxD)
Shipping Weight:
Shipping Weight: 6.4oz (181gm)
STANDARD LENS
STANDARD LENS
FEATURES
FEATURES
•
Signal Selective Processing
for reliable operation
•
Unique circuit design protects against false alarms due
to radio-frequency interference
•
Vertical and horizontal aiming capabilities
•
Dual-element sensor
•
Lens Bank of optional accessory lenses
•
Large lens area assures high sensitivity
•
Small size with ample wiring space
•
Corner mountable
•
Built-in Tamper microswitch
REPLACING THE LENS
REPLACING THE LENS
The lens is ‘‘sandwiched’’ between the front case and a
Lens Support insert, which also serves to hold the LED
jewel in place. To install one of the accessory lenses,
proceed as follows.
1. To open the case, insert a small screwdriver in the slot
at the bottom and push up slightly. Remove the front cover.
2. Push up on the lower edge of
the Lens Support until it is clear of
its retainers, then pull out the sup-
port from the bottom. Be careful
not to dislodge the LED jewel.
Note:
Note: If the LED jewel pops out,
reinsert it with the small index key
positioned at the top.
3. Slide out the lens and install
the replacement.
4. Replace the Lens Support:
Slip the Lens Support under the top guides with its two tabs
straddling the LED jewel, then push in at the bottom until
the Lens Support snaps into place.
INSTALLATION
INSTALLATION
An assortment of ‘‘push-thru’’ holes is provided in the rear
case for wall or corner mounting. Install the two lithium
batteries as shown in the illustration below.
Loosen the Height Lock Screw and set the board’s height
scale to the mounted height of the unit. Retighten the screw.
To reduce range if necessary, set height scale at a higher
number than actual mounting height of unit. Do not point
the unit at sources of heat, such as radiators, space heat-
ers, etc.
Note:
Note: In UL burglary installations, the burglary output
must be programmed for all protective devices.
WALK TESTING
WALK TESTING
The LED will light in the Walk-Test Mode only. Allow at least
3 minutes for the unit to settle. Press the Walk-Test Button to
access the Walk-Test Mode for 5 minutes.
Walk out to the maximum range and walk across the field
of coverage. The LED will light whenever motion is de-
tected. Check for environmental disturbances with all dis-
ruptive devices (heaters, air conditioners) on and no human
activity within the coverage area. Adjust beams laterally by
removing the Lens Support (see
REPLACING THE LENS
)
and sliding the lens slightly left or right. To block a problem
zone, apply a piece of lens foil (supplied) to the
inside
segment of the lens representing that zone.
SETTING THE OPERATING MODE
SETTING THE OPERATING MODE
The GEM-PIR comes set for operation in the Signal Se-
lective Processing (SSP) Mode. To change to the fixed
2-pulse bipolar mode for use with the Long-Range Lens*
(
LENS840
), Barrier Lens* (
LENS818
) or other lens with a
limited number of beams, remove the Response-Mode
Jumper, J1.
Standard Lens coverage pattern for 6’ mounting height.
Standard Lens coverage pattern for 6’ mounting height.
GEM-PIR, front cover removed.
GEM-PIR, front cover removed.
Removing Lens Support.
Removing Lens Support.
Napco
Napco
GEM-PIR
GEM-PIR
Wireless PIR Transmitter
Wireless PIR Transmitter
© NAPCO 1996
WI749C 12/96
