Chart Environmental Chambers | System Installation |
System Installation
❏Location
The location of the chamber should be chosen with a few items in mind:
•The left side of the chamber has an access port, which allows passing power and data acquisition wires into the chamber and connecting to the device under test.
•The top side of the chamber has the control box. For safety and service reasons, this side must be kept clear at least three feet from the control box door.
•The front of the chamber contains the door. Enough room should be left so the door can swing fully open for ease of loading test items in and out of the chamber.
•The rear of the chamber contains the blower motor assembly. Space should be left to allow a service technician to access this assembly. Also note that the blower assembly has an extended shaft that protrudes through the chamber wall and connects to the blower wheel. Should the blower assembly ever need to be removed from the chamber, the blower will need to be able to slide back far enough to get the shaft back out of the chamber wall.
•The chamber weighs approximately 200 pounds, if it is going to be placed on a surface, be sure the surface can support the weight safely.
❏Electrical Power
The electrical power needs to be connected from above and into the back of the control box. A large hole is provided in the back of the control console for the entrance of the power wires. The power specs are given in the Specs section of this manual. It is extremely important to run a properly sized ground wire. It is often beneficial to provide a ground wire that is actually larger than conventional standards. Doing so may aid in reducing any electrical noise problems. When running power there should be at least one to two feet of flexible conduit before the chamber connection to leave room for expansion and contraction of the floor as well as allow for slight variances in chamber placement. If the chamber uses the cord/plug supplied by Chart, that will make connecting power much simpler. If the customer does not wish to use the cord/plug assembly, it is possible to run wires directly into the control box and terminate at the same points as the cord/plug assembly did.
All power needed to operate the chamber is generated/supplied from the main control box. Only one main power supply is needed to operate the chamber. The power of the control box does not have any provisions for powering any devices under test.
After the installation is complete, it is important to check the rotational direction of the blower. If the fans are not rotating in the proper direction, the heaters will not get sufficient air flow and cause premature
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