ETS-Lindgren L.P. reserves the right to make changes to any product described
herein in order to improve function, design, or for any other reason. Nothing
contained herein shall constitute ETS-Lindgren L.P. assuming any liability
whatsoever arising out of the application or use of any product or circuit
described herein. ETS-Lindgren L.P. does not convey any license under its
patent rights or the rights of others.
See the ETS-Lindgren Product Information Bulletin for safety,
regulatory, and other product marking information.
provide tips for better use of the product.
Caution: Denotes a hazard. Failure to follow
instructions could result in minor personal injury
and/or property damage. Included text gives proper
procedures.
Warning: Denotes a hazard. Failure to follow
instructions could result in SEVERE personal injury
and/or property damage. Included text gives proper
procedures.
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Introduction
The HI-4433 series comprises a family of battery-operated broadband radio
frequency (RF) isotropic field probes designed for use in making RF exposure
measurements in the vicinity of broadcast facilities and industrial RF sources.
These probes use optical isolation to minimize field perturbation during
measurements. Each probe in this series has characteristics that optimize its
performance for a particular application. Model number differentiates individual
probes for example HI-4433-XXX, where XXX defines the specific probe.
Each HI-4433 series probe assembly consists of a spherical casing containing
the sensor mounted on one end of a shaft. The other end of the shaft is attached
to an extrusion that houses the electronics. The sensor and electronics housing
operate, and are calibrated, as a unit. Since the appearance and layout of the
electronics housing are the same for all probes in this series, both the probe
assembly and the housing are coded with identical serial numbers to prevent
mismatch.
HI-4433 series probes measure the field strength in each of three axes. They
perform a vector addition calculation on the readings and send the result to the
readout via a fiber optic cable. Data from each axis can be viewed individually, or
can be combined. The measurement capability and frequency response of
HI-4433 series probes depend upon which model is selected. In addition, both
magnetic and electric field probes are available.
Introduction | 9
ETS-Lindgren Product Information Bulletin
See the ETS-Lindgren Product Information Bulletin included with your shipment
for the following:
• Warranty information
• Safety, regulatory, and other product marking information
• Steps to receive your shipment
• Steps to return a component for service
• ETS-Lindgren calibration service
• ETS-Lindgren contact information
10 | Introduction
Maintenance
Before performing any maintenance, follow
the safety information in the ETS-Lindgren
Product Information Bulletin included with
your shipment.
WARRANT Y
Maintenance of the HI-4433 Broadband
Isotropic Field Probe is limited to external
components such as cables or connectors.
To prevent electrical shock, do not remove
cover.
Warranty may be void if the housing is
opened.
If you have any questions concerning
maintenance, contact ETS-Lindgren
Customer Service.
Maintenance Recommendations
Maintenance of the HI-4433 probe is limited to external components such as
cables or connectors.
Annual Calibration
The HI-4433 probe assembly (sensor and electronics housing) requires an
annual calibration check to verify that they are performing within specifications.
See the Product Information Bulletin included with your shipment for information
on ETS-Lindgren calibration services.
Maintenance | 11
Replacement and Optional Parts
Following are the part numbers for ordering replacement or optional parts for the
HI-4433 Broadband Isotropic Field Probe.