Sensor Installation
46
Rev. L6 Feb 2017 Modline 5
Figure 33: Water Cooling Standard Sensor
3.9.6.2 WJA Air Cooling Requirements.
Adequate cooling air for a 105C (220F) ambient is 4 SCFM (114 liters/min). Air temperature should be
30C (86F) or lower.
When using air to cool a Sensor with the Dirty Window Detector (DWD), an APA air purge must be
part of the assembly and the installation should reflect the drawing below.
Figure 34: Air Cooling Sensors with DWD
3.9.6.3 Sensor Temperature Alarm
The Modline 5 Sensor provides Alarms when the Sensor’s internal temperature exceeds its allowed
limit. Error Code X105 signifies the outside influences have caused the internal temperature to rise
above its limit. Error Code X103 signifies outside influences have caused the detector to rise above its
limit. If these alarms are triggered, check the installation for proper flow of air or water.
Higher than rated ambient temperature can also be the cause. Other possible causes of overheating
include radiant and conductive transfer of heat. Insulation, shielding and thermal isolation may be
necessary. See Section 8 Applications Guide, page 129 for more information.
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