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PIRAMID Indoor MW Series Specification Sheet
 
PIRAMID Indoor MW Series Installation Guide
  G E N E R A L

Models SDI-76MW and SDI-77MW are indoor microwave intrusion sensors designed for applications where the very
highest level of security is required. As in all PROTECH intrusion sensors, Models SDI-76MW and SDI-77MW utilize
PROTECH’s proprietary “Stereo Doppler” Microwave technology.

STEREO DOPPLER TECHNOLOGY
In 1980, a technological breakthrough in microwave signal processing termed “Stereo Doppler” was developed. This
technology became the basis for PROTECH’s high security military sensor designs. Unlike conventional microwave
sensors, PROTECH sensors can actually determine the exact distance in inches (centimeters) that a target must move to
create a valid alarm signal. In addition, sensors equipped with Stereo Doppler technology can ignore vibration and
randomly moving objects (swinging signs, overhead doors, moving displays, etc.) as potential sources of nuisance alarms.
The benefit is a higher level of security without the nuisance alarms. Models SDI-76MW and SDI-77MW are typically
used in military and government installations.

  F E A T U R E S

Stereo Doppler Microwave Sensor:
Two receiving channels rather than one and the ability to eliminate vibration and periodically moving objects as sources of false alarms.
Microprocessor Controlled:
Proprietary integrated circuit design provides enhanced digital signal processing for both microwave and passive infrared technologies.
Digital Range Control:
Ten-position digital switch adjusts how far the sensor detects (to its maximum range).
Digital Sensitivity Control:
Ten-position digital switch adjusts the amount of movement required to initiate an alarm condition.
Stereo Doppler Supervision:
A component failure will cause the sensor to lock-in alarm.
Master LED:
Displayed on the face of the unit indicating the alarm relay status.
All Solid State Relay:
User selectable form C relay output.
Metal Housing:
Rugged and durable and offers maximum protection against RFI and EMI interference.
Swivel Mounting:
180° Horizontal Adjustment   90° Vertical Adjustment
Fluorescent Filter Module (Optional):
FF-2 Fluorescent Filter is a plug-in printed circuit board module that can be field installed on the sensor in applications where nearby fluorescent lighting is affecting sensor performance. The FF-2 Fluorescent Filter is highly recommended in appli-cations where fluorescent lighting will be left on during the protected hours and the lighting fixtures are located in the sensors field of view (within 20 ft.).
HS Auxiliary PC Board:
Optional factory installed satellite printed circuit board that provides anti-masking and remote self-test features.

  S P E C I F I C A T I O N S
Input Voltage:
8.5 to 20 VDC
Current Consumption:
150 mA@12 VDC (LED’s off)
RF Power Density: 120 uW/cm2 max. at the face of the unit
Operating Temperature:
-40F to 155 F (-40C to 70C)
Operating Humidity: 0 to 100% Relative Humidity
Relay Contact Rating: 0.1A, 50V
Housing Dimensions: 61/2” L x 51/4” W x 3 3/8” H
16.5cm L x 13.3cm W x 8.5cm H
Microwave Frequency: Factory adjusted to one of the
following frequencies:
10,525 MHz USA
10,587 MHz International
9,900 MHz International
9,470 MHz International
Note: Additional frequencies available to satisfy various international requirements.