Hanse VTC Series, Installation, Operation And Maintenance Instructions

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Chamber Safety Features
Door Interlock Switches:
One door on each side is provided with a sensor, which will interrupt heat, cool,
vibration, and optional humidity operation when the doors are open. These sensors are
located near the top of each of the chamber doors. Operation of the vibration system
with a door open can cause eardrum damage due to the high sound power levels
produced. Do not open doors without switching o
ff the vibration system first, and do
not operate the equipment unless all door interlocks are functioning properly.
Note:
door interlocks do not protect Access ports and plugs. They can also leak a
significant amount of sound energy when open, although typically not enough to cause
injury. Since they are provided for cables and hoses supporting product under test, it
will often be necessary to operate the equipment with one or more of these port covers
open. Packing the port with foam or other material rated for anticipated temperature
ranges will greatly reduce noise leakage.
Be absolutely certain that no one is directly in front of an open
access port before switching on the vibration system!
Interlock Safeties:
Multiple safety devices are interlocked such that heat, liquid nitrogen and vibration are
inhibited when any of the safeties are activated. Safeties items include but are not
limited to:
• Door closed limit switches
• High and Low air temperature limit controller
• Event control of heating and cooling
• Auxiliaries on motor starter
• Phase Load Monitor (PLR)
Authorization and Copyright of this document is
controlled by Hanse Environmental Inc.
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