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Environmental Requirements and Specifications

The device must be housed in a dry, clean, well-ventilated, and temperature-controlled environment.

Follow these environmental guidelines:

  • The site must be as dust-free as possible, because dust can clog air intake vents and filters, reducing the efficiency of the device cooling system.

  • Maintain ambient airflow for normal operation of the device. If the airflow is blocked or restricted, or if the intake air is too warm, the device might overheat, leading to the device temperature monitor shutting down the device to protect the hardware components.

Table 1 provides the required environmental conditions for normal operation of the device.

Table 1: CTP151 Device Environmental Tolerances




No performance degradation up to 2000 meters at 96° F (40° C)

Relative humidity

Normal operation ensured in relative humidity range of 5% through 90%, noncondensing

Operating Temperature

32° F through 104° F (0° C through 40° C)

Storage Temperature

–40° F through 158° F (–40° C through 70° C)


Complies with Zone 4 earthquake requirements as per GR-63, Issue 4