Humidity, Mechanical vibration, Mounting position – HEIDENHAIN TNC 306 Technical Manual User Manual
Page 23: 3 humidity, 4 mechanical vibration, 5 mounting position

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TNC 416/TNC 406/TNC 306
Installation
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2.3 Humidity
Permissible humidity:
< 75% in continuous operation,
< 95% for not more than 30 days p.a. (randomly distributed).
In tropical areas it is recommended that the TNC remain permanently switched on to prevent
condensation on the circuit boards.
2.4 Mechanical vibration
Permissible vibration:
< 5 m/s
2
; 0-500 Hz
2.5 Mounting position
Note the following fundamental points on mounting:
– Mechanical accessibility
– Permissible environmental conditions
– Electrical noise immunity
– The electrical regulations which are in force in your country
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