.. _Environmental Specifications:

Environmental Specifications
----------------------------

Appliance environmental specifications are listed in the following tables.

.. tabularcolumns:: |>{\TL}\X{2}{3}%
                    |>{\TL}\X{1}{3}|

.. table::
   :class: longtable

   +--------------------------------------------------+----------------------------------+
   | Store temperature                                | -40 |deg| C to 85 |deg| C        |
   |                                                  | (-40 |deg| F to 185 |deg| F)     |
   +--------------------------------------------------+----------------------------------+
   | Store temperature gradient                       | 20 |deg| C (68 |deg| F) per hour |
   +--------------------------------------------------+----------------------------------+
   | Operating temperature                            | 10 |deg| C to 35 |deg| C         |
   |                                                  | (50 |deg| F to -95 |deg| F)      |
   +--------------------------------------------------+----------------------------------+
   | Operating temperature gradient                   | 20 |deg| C (68 |deg| F) per hour |
   +--------------------------------------------------+----------------------------------+
   | Relative humidity percentage range for storage   | 10% ~ 95% (non-condensing)       |
   +--------------------------------------------------+----------------------------------+
   | Relative humidity percentage range for operating | 10% ~ 85% (non-condensing)       |
   +--------------------------------------------------+----------------------------------+
   | Vibration for storage                            | 1.87 Grms (10-500 Hz)            |
   +--------------------------------------------------+----------------------------------+
   | Vibration for operating                          | 0.26 Grms (5-350 Hz)             |
   +--------------------------------------------------+----------------------------------+
   | Shock for storage                                | 65G for 2ms                      |
   +--------------------------------------------------+----------------------------------+
   | Shock for operating                              | 5G                               |
   +--------------------------------------------------+----------------------------------+
   | Altitude for storage                             | 12,000m (39,370 ft)              |
   +--------------------------------------------------+----------------------------------+
   | Altitude for operating                           | 3,048m (10,000 ft)               |
   +--------------------------------------------------+----------------------------------+

Air Quality Requirements
~~~~~~~~~~~~~~~~~~~~~~~~

The air must be free of:

- corrosive dust and/or corrosive contaminants
- conductive dust or conductive particles (such as zinc whiskers)

Airborne residual dust must have a deliquescent point\* less than 60% relative humidity. (\*The relative humidity at which crystalline materials begin adsorbing large quantities of water from the atmosphere.)

Gaseous corrosion level in terms of (in Angstrom) as per ISA:

- Copper reactivity rate must be less than 300 |ang| /month, class G1(ANSI/ISA71.04-1985).
- Silver reactivity rate must be less than 200 |ang| /month (AHSRAE TC9.9).