MTS Landmark Site Prep Guide - Manual (Page 11)

Landmark Test System Site Prep Guide Facility Preparation 11
Acoustics
Some types of fatigue testing can produce noise which is undesirable or
potentially damaging to hearing. Acoustical treatment of walls and ceiling might
be necessary to prevent harm to personnel. If disk drives are included in the
system, acoustical materials should not be of the type that generates or harbors
dust. The Series 505 SilentFlo™ Hydraulic Power Units are designed for
relatively quiet operation; no special acoustical considerations are necessary.
However, the use of hearing protection is recommended for personnel involved
in long-term testing in a noisy testing environment.
Temperature
The operating temperature range of the electronics console is 64°F to 86°F (18°C
to 30°C). This includes most temperature sensitive equipment, such as disk
drives which are dependent on cooler air to maintain proper height of read/write
heads. Although the load cell or force transducer is temperature compensated, it
is recommended that room air heating and cooling outlets be directed so that they
uniformly distribute air throughout the room. This is primarily due to the
potential changes in specimen characteristics or test data associated with changes
in temperature.
Heat Dissipation
For comfortable working conditions and proper operation of the equipment, the
heat dissipation of the hydraulic power equipment, electronics console, and other
equipment must be considered in providing adequate heating or air conditioning
to the laboratory area.
The HPU is normally located in a room separate from the test system to reduce
heat loading and acoustical noise near operating personnel. For specific
requirements, see
“Model 505.07/.11 Specifications” on page 18 and “Model
505.20/.30 Specifications” on page 20. A 40°C (104°F) maximum environment
is recommended for the HPU. Care must be taken to ensure that it is not placed in
a location subject to freezing when water cooling is used. Reservoir heaters and
oil-to-air coolers are available; consult your MTS representative.
Heat dissipation for the console and other electronic units can be estimated by
summing the losses going to heat in the room {approximately 6000 Btu/hr (1500
kcal/hr) for a single 15 amp power panel or 8000 Btu/hr (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. The specified
equipment environment should be reduced by 0.55°F per 1000 feet (1.0°C per
1000 meters) above sea level. Most equipment can be operated at altitudes up to
8000 feet (2400 meters). Refer to equipment product specifications for any
altitude restrictions.