The ambient air temperature is not higher than +40°C and not lower than -5° C, and its average temperature is not higher than +35°C within 24h.

△Atmospheric conditions: the air is clean, the relative humidity does not exceed 50% at a maximum temperature of +40°C, higher relative humidity is allowed at lower temperatures, e.g. 90% at +20°C, but temperature variations should be taken into account, and condensation may occur occasionally.

△The altitude does not exceed 2000m above sea level.

△The unit is adapted to transportation and storage processes at the following temperatures: between the ranges of -25°C and +5.5° Celsius. For a short period of time (not exceeding 24h ) up to +70° C. The device should not suffer any irrecoverable damage at these extreme temperatures and should work normally under the above conditions.

△If the above conditions can not be met, it should be solved by consultation between the user and the manufacturer.

△When this device is used in offshore oil drilling platforms and nuclear power plants, a separate technical agreement should be signed.