Altitude, Relative humidity, Leveling system components – MTS Criterion Series 40 User Manual
Page 15
Altitude
MTS Criterion
®
Series 40 Site Preparation Guide
Site Preparation
15
Heat dissipation for the load frame, the PC cabinet/desk, and other electronic
units can be estimated by summing the losses going to heat in the
room(approximately 6000 BTU [1500 kcal/hr] for a single 15 amp power panel
or 8000 BTU [2000 kcal/hr] for a single 20 amp power panel)and the gains from
personnel and other heat inputs such as furnaces. To this figure, you should add
20% additional heat gain for future changes in test requirements.
Altitude
Systems operated at high altitudes can have heat dissipation problems because of
the lower density of the air. This type of problem might require the use of an air
conditioned environment or cooling fans to reduce the heat load. Equipment can
be operated at altitudes up to 2000 meters (6562 ft). For any altitude restrictions,
see
Relative Humidity
The recommended relative humidity for the test room is within the range of 5%
to 85% (non-condensing). The risk of static discharge, which easily damages
logic components and causes loss of data in memory devices, is increased by low
humidity. Excessive humidity can result in electrical leakage currents or
component failure.
Leveling System Components
C42 and C43 frames are leveled by adjusting the four feet as necessary. An open-
ended wrench and spirit or bubble level must be used.
C44 and C45 frames are leveled by adjusting the four feet as necessary. A 14mm
socket wrench, M8 (C44) or M10 (C45) inner-hex wrench, and spirit or bubble
level must be used.
The FSE should have a spirit level available. Use the spirit level to measure and
adjust the horizontal level of the crosshead in two dimentions from side-to-side
and front-to-back. This is very important for calibration, as a non-level condition
can cause load channel errors. A load frame out of level can also cause noise,
vibration, and premature wear of drive system.