- 6 - 
MASK CONDITION (DT8360ACM-SN only) 
Normal Anti-Mask Condition 
The sensor uses Active Infrared (AIR) technology to detect 
masking. The sensor signals a mask condition when a 
variety of materials and reflective objects are placed within 
50mm (2 inches) in front of the sensor.  To avoid false 
mask alarms, follow the mounting guidelines shown in 
Step 1. 
Clearing an Anti-Mask Condition 
When most masking materials or objects are removed, the 
anti-mask condition will be cleared after several seconds. 
When the cause of the anti-mask condition is any type of 
spray or paint coating applied to the window, the window 
must be replaced before the anti-mask condition can be 
cleared. After replacing the window, perform a walk-test on 
the sensor.  
TROUBLESHOOTING 
 
Mask
1
 
2
3
*TROUBLE CONDITIONS: 
1.  Mask condition: Sensor IR window is blocked or 
masked. 
2.  Low Voltage: The sensor is disabled. Note: If voltage 
drops below 5V, both Alarm and Trouble relays open. 
3.  Self-Test Failure conditions: 
•  Microwave supervision failure:  The sensor is 
operating in PIR mode only. 
•  PIR self-test failure: The sensor is disabled. 
•  Temperature compensation failure: The 
temperature compensation is disabled. 
Depending on the Trouble condition, take the following 
corrective actions: 
•  Verify the sensor is not blocked or masked. 
•  Verify the power supply is sufficient (at least 9V at the 
sensor). 
•  Cycle power to the sensor. 
•  Walk test the sensor. 
If the Trouble condition does not clear, replace the sensor. 
SPECIFICATIONS 
Range: Ø 21m max. 
Mounting Height: 2.4m – 8m 
IP Rating: IP30 
Power: 9.0 - 15 VDC; 6 mA standby (V-Plex@ version),  
20 mA max., 12 VDC; 
AC Ripple: 3 V peak-to-peak at nominal 12 VDC 
Tampers: Cover & Wall; (NC with cover installed) Form A; 
30 mA, 25 VDC; Magnetic field 
Microwave Frequencies Range: 10.5 – 10.55GHz 
RFI Immunity: 20V/m, 80MHz-1GHz 
PIR White Light Immunity: 6,500 Lux typical 
Fluorescent light filter: 50 Hz / 60 Hz 
Operating Temperature: -10℃ - 55℃ 
Relative Humidity: 5 to 95%; non-condensing 
Temperature Compensation: Advanced Dual Slope 
Dimensions: 14.8 cm x 16.2 cm x 4.7 cm 
Notes 
•  Install the devices and system in the isolated and 
dedicated network system with physical security. 
•  Ensure only the authorized technician may access 
and operate the device. 
•  Ensure to have regular system maintenance and 
check the device functionalities work normally. 
•  Access 
https://www.honeywell.com/contact-
us/vulnerability-reporting to report any vulnerability.