The adjoining compressor enclosure and instrument housing
were built to IP55 and IP65 respectively, and the system is capable of providing the required fresh air supply whilst removing sand and dust ranging from 1?m to 300?m particle size.
Roll data is shown in fixed pointer format--the pointer remains in a fixed location relative to the instrument housing
and the roll scale rotates with the horizon.
First, it is important that the airflow is not severely disrupted by the instrument's operation, placement or removal, since disturbance makes it easier for contaminants to attach to instrument housing
. To minimize air flow disruption in isolators and other confined areas, as well as to save space, manufacturers have developed variants of their instruments.
Bruker Optics' (Billerica, Mass.) TANGO-T FT-NIR (Fourier transform near-infrared) spectrometer, released at Pittcon 2013, is controlled primarily by a touchscreen mounted to the top of the instrument housing
, conserving bench space and diminating clutter.
The system sits in the dashboard behind the instrument housing
, projecting an image at a focal distance of 2m, so that it is seen to sit above the front of the car, in the driver's line of vision.
Another challenge is to reverse--engineer the invisible parts of the instrument housing
by combining measurement point clouds with tessellated meshes numerically generated based on interpolated CAD primitives.
With a simple upgrade in the pressure transmitters, used in the instrument housing
, the Hal-AT (HALTEST) system can fulfil this role.
Two versions are available: the Standard version has a traditional instrument housing
and provides local indication using a high-intensity bi-color LED and a relay output; Compact version has a compact stainless steel housing with a small local LED.
This allows systems to become more compact by integrating the backing pump in the instrument housing
. It also eliminates the need to deal with contaminated pump oil.
Applications therefore include horizontal covers, doors or flaps on control pedestals, enclosures or instrument housings
- or on outdoor cabinets for power, data or telecom purposes.