Endurance
®
Series
Users Manual, Rev. 2.0, Jun 2020
30
4 Environment
4.1 Ambient Temperature
The sensor is suited for a maximal operating temperature, see section 2.4 Environmental Specifications, page 24.
The operating temperature can be extended by using the air/water-cooled housing accessory, see section
11.4 Air/Water-Cooled Housing, page 78.
4.2 Atmospheric Quality
If the lens gets dirty, infrared energy will be blocked and the sensor will not measure accurately. It is good practice
to always keep the lens clean. The air purge collar accessory helps keep contaminants from building up on the
lens, see section 12.2.9 Air Purge , page 106. If you use air purging, make sure a filtered air supply with clean, dry
air at the correct air pressure is installed before proceeding with the sensor installation.
4.3 Electrical Interference
To minimize electrical or electromagnetic interference or noise, please be aware of the following:
• Mount the instrument as far away as possible from potential sources of electrical interference, such as
motorized equipment, which can produce large step load changes.
• Use shielded wire for all input and output connections.
• For additional protection, use conduit for the external connections. Solid conduit is better than flexible
conduit in high-noise environments.
• Do not run AC power in the same conduit as the sensor signal wiring.
• To avoid ground loops, make sure that only ONE POINT is earth grounded, either at the instrument or at
the power supply.
Figure 4-1: One Earth Ground at the Sensor (left) or at the Power Supply (right)
Note
The metal housing of the sensor is electrically connected to the shield of the sensor’s cable.
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