User manual VISONIC DUO 240 INSTALLER GUIDE

[. . . ] DUO 240 Ceiling-Mount Dual Technology Intrusion Detector 1. INTRODUCTION DUO 240 is a microcomputer-controlled, ceiling-mounted dualtechnology intrusion detector. Its operation is based on two physical phenomena - the infrared (IR) radiation emitted by the human body and the Doppler frequency shift caused by a person moving in a microwave (MW) field. The IR and MW technologies, when combined in a single detector, complement each other to assure the most reliable detection and immunity to false alarms. [. . . ] Interpreting the States of the LEDs GREEN Off On Flashes Off Flashes RED Off Off Off On Flashes Significance No detection MW walk-test detection PIR walk-test detection Alarm: MW + PIR detection Trouble is being detected by the self test circuitry, or Initial warm-up routine (stops 60 seconds after power up). Table 2. Mode Selector Switch Functions Switch SW-1 SW-2 SW-3 SW-4 State OFF ON OFF ON OFF ON OFF ON Function One motion event trips the PIR Two motion events trip the PIR Alarm walk test is disabled* Alarm walk test is enabled MW/PIR walk test is disabled* MW/PIR walk test is enabled Output relay opens upon alarm Output relay opens upon alarm and when trouble is detected. Default ON ON ON OFF 4. 2 Mode Selector The DIP switch mode selector is mounted on the unit's PC board (Fig. It controls four functions as demonstrated in Fig. 5 and as detailed in Table 2. * Setting SW-2 and SW-3 to OFF does not disable the trouble indication (flash/flash). INITIAL ADJUSTMENT 5. 1 Setting the Motion Event Counter If you wish to set the PIR detector for maximum false alarm immunity, shift DIP switch No. In this position, two consecutive motion events are required to trip the PIR detector. For faster catch performance, shift SW-1 to OFF. In this position, only one motion event is required to trip the PIR detector. 5. 3 MW Walk Test A. Verify that the MW range control is set to MIN and that DIP switch SW-3 is set to ON (the green walk-test LED is enabled). Start by moving into the coverage area at the far edge. The green LED should light steadily for up to 5 seconds each time your motion is detected. If your motion was not detected at the far edge of the coverage area, advance the MW RANGE control slightly toward MAX and try again until your motion is detected reliably at the far edge. The MW detection range must not exceed the far edge of the desired coverage area. Walk across the coverage area at various ranges and verify that your motion is consistently detected. Note: If PIR trips interfere with your test, disable the PIR by inserting a small piece of cardboard in front of the sensor. 5. 2 PIR Walk Test A. Rotate the MW RANGE control all the way toward MIN. Verify that DIP switch SW-3 is set to ON (the green walk-test LED is enabled). Mount the front cover in place: line up the ridge on the cover with the cavity in one of the two projections on the base circumference (Fig 6). Fit the cover over the base, and rotate the cover clockwise until it stops. Walk into the detector's field of view at the expected far edge of the coverage area. The green LED should flash for up to 5 seconds each time your motion is Figure 6. If PIR detection is not obtained at the far edge of the coverage area, verify that the infrared radiation is not blocked or diverted by intervening objects such as large lampshades, air conditioning ducts etc. [. . . ] To exercise this Warranty the Product must be returned to the Manufacturer freight prepaid and insured. All freight and insurance costs are the responsibility of the Purchaser and are not included in this Warranty. This warranty shall not be modified, varied or extended, and the Manufacturer does not authorize any person to act on its behalf in the modification, variation or extension of this warranty. This warranty shall apply to the Product only. [. . . ]