ETS-Lindgren 5411 GTEM! Test Cell - Manual (Page 47)

Ortho-Axis Positioner – Pneumatic (Optional)
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7.0 Ortho-Axis Positioner – Pneumatic (Optional)
The Ortho-Axis Manipulators for the Model 5405,
Model 5407, and Model 5411 are air-driven devices
used to assist in positioning the Equipment Under
Test (EUT) during EMC measurements.
The manipulator is designed to automate the
positioning of EUT inside the Gigahertz Transverse
Electromagnetic (GTEM!™) Cell. A custom serial
interface is used to control the movement of the
manipulator.
Position the manipulator in the GTEM! as far back as possible, making sure to
clear the absorbers and any floor penetration panels. The mounting platforms for
the different models can support the following loa
ds:
5405: Can support up to 4.5 kg
5407: Can support up to 4.5 kg
5411: Can support up to 20 kg
The EUT should always be positioned centrally and supported securely using the
provided straps before the positioner is operated.
To prevent injury: Make sure that the manipulator cannot be
operated remotely while inside the chamber or mounting the
EUT to the platform.
Operation
A control unit containing pneumatic control relays is to be mounted to the exterior
of the GTEM!. Four pneumatic control lines connect the control unit to the
manipulator through four separate feed-through fittings on the side wall of
the GTEM!.
Inline flow control valves mounted on the air cylinders of the manipulator regulate
the speed of the manipulator movement. The valves can be adjusted to increase
or decrease the airflow. The unit is to be connected to a customer-supplied air
source. This air source will need to deliver a minimum of 1 CFM at 60 psi (30 psi
for the Model 5405). It is important to have clean, dry air. We recommend the use
of a 40-micron filter in close proximity to the installation.