FHF FernTel IP Z2 UL 매뉴얼 - 페이지 8
{카테고리_이름} FHF FernTel IP Z2 UL에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. FHF FernTel IP Z2 UL 16 페이지. Explosion proof ul certified voip telephone
페이지 인쇄The required general purpose has to be respected. The device must be
•
mounted on a closed rear panel in vertical mode or used as a desktop unit.
A magnetic field with disturbing frequencies can adjust a disturbance of the
•
acoustic quality. Pay attention to an acceptable installing place.
For opening the device must be free of power.
•
In opened state of the telephone dust must not attain into the device.
•
For the impermeability of the housing necessary gasket respectively the
•
protective cover at the upper part must not be damaged during mounting or
dismounting.
After repairing of the device for use in dust environment, the repaired parts
•
have to be tested again.
The speech speed hopper of the handset consists out of a not electrical
•
conductive plastic material. It may be charging with high air speed
dangerously. A cleaning of the speech speed hopper with pressed air is not
allowed.
Changes of the product for technical improvement are possible without
•
announcement before.
The telephone has to be included into the potential equalisation either with
•
the internal earth connecting bolt of the metal plate or with the external earth
connecting bolt at the housing. The potential equalisation must exist inside
and outside of the explosion at risk area. The potential equalisation is
necessary to support the explosion protection.
Page
8
Manual
FernTel IP Z2 UL