Huawei EMU - Infrared Sensor Exterior; Infrared Sensor Working Principle; Infrared Sensor Specifications

Item Specification
Working temperature
-10
o
C [14
o
F] to +55
o
C [131
o
F]
Working humidity
≤ 95% (40
o
C [104
o
F] ± 2
o
C [35.6
o
F], no
condensing)
Output type Dry contact point
3.3 Infrared Sensor
This describes the infrared sensor. The model of the configured infrared sensor is MC-760T.
Exterior of the Infrared Sensor
Figure 3-3 shows the exterior of the MC-760T infrared sensor.
Figure 3-3 Exterior of the MC-760T infrared sensor
NOTE
The cable provided along with the MC-760T infrared sensor is 10 m [32.81 ft] long.
Working Principle of the Infrared Sensor
The MC-760T infrared sensor is based on the pyroelectric effect and performs dual monitoring
(microwave and infrared).
The sensitivity of the infrared sensor can be adjusted through its DIP switches. For details, refer
to the instructions of the infrared sensor. The infrared sensor enters the monitoring state three
minutes after it is powered on. It generates an alarm whenever someone moves in the equipment
room.
Technical Specifications of the Infrared Sensor
Table 3-4 lists the technical specifications of the MC-760T infrared sensor.
3 Introduction to the Sensors
EMU
User Guide
3-4 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 13 (2009-12-30)