Satel COBALT Manual

COBALT
COBALT Plus
COBALT Pro
DIGITAL DUAL TECHNOLOGY MOTION DETECTOR
The COBALT / COBALT Plus / COBALT Pro detector allows detection of motion in the
protected area. This manual applies to the detector with electronics version Q (or newer).

1. Features

 Passive infrared (PIR) sensor and microwave sensor.
 Dual [COBALT, COBALT Plus] or quad [COBALT Pro] element pyrosensor.
 Adjustable detection sensitivity of microwave sensor.
 Selectable detection sensitivity of passive infrared sensor.
 Digital motion detection algorithm.
 Digital temperature compensation.
 Selectable operation modes: basic or counting.
 Microwave based anti-mask feature [COBALT Plus / COBALT Pro].
 Built-in EOL resistors (Double EOL).
 Bi-color LED to indicate motion detection / alarm status.
 Supply voltage control.
 Tamper protection against cover removal.

2. Description

Operation modes

Basic – the detector indicates an alarm if both sensors detect motion within a time period
shorter than 10 seconds.
Counting – the detector indicates an alarm if:
 both sensors detect motion within a time period shorter than 10 seconds,
 within 30 minutes' period, the microwave sensor detects motion 16 times, but PIR
sensor does not detect any motion.

Anti-mask feature

Detection by the microwave sensor of an object moving at a distance of 10-20 centimeters
from the detector is interpreted as an attempt to mask the detector and results in activation of
anti-masking relay for two seconds. Objects permeable to microwaves, but isolating the
infrared radiation are not detected by the anti-mask feature.

Supply voltage control

In the event of the voltage drop below 9 V (± 5%) for more than 2 seconds, the detector will
signal a trouble. The trouble is indicated by the activation of alarm relay and the steady red
light of LED indicator. The trouble signaling will continue as long as the trouble persists.
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cobalt_en 07/15