sion. Forbest results, place the IR dongle and the IR window on the 1522 at an
angle of 0° andwithin 0.5 meters.
11.4 CE Comments

11.4.1 EMC Directive

Hart Scientific’sequipment has been tested to meet the European Electromag-
netic Compatibility Directive(EMC Directive, 89/336/EEC). The Declaration
of Conformityfor your instrumentlists the specific standards to which the unit
was tested.
The instrumentwas designed specifically as a test and measuring device. Com-
plianceto the EMC directive is through IEC 61326-1 Electrical equipment for
measurement,control and laboratory use – EMC requirements (1998).
As noted inthe IEC 61326-1, the instrument can have varying configurations.
The instrumentwas tested in a typical configuration with shielded, grounded
probe and RS-232 cables.Emissions may, in non-typical applications, exceed
the levelsrequired by the standard. It is not practical to test all configurations,
as the manufacturerhas no control over the probes the user may connect to the
instrument.
11.4.1.1 Immunity Testing
The instrumentwas tested to the requirements for industrial locations. This al-
lowsthe instrument to be used in all types of locations from the laboratory to
the factoryfloor. Criterion B was used for Radiated RF (IEC 61000-4-3) and
ConductedRF (IEC 61000-4-6). Therefore, the operation of the instrument
may be affectedby excessive electromagnetic interference and the instrument
may not perform within the normal specification limits in such an environment.
CriterionC was used for Electrostatic Discharge (ESD, IEC 61000-4-2) and
1522 Handheld Thermometer Readout
User’s Guide
60
Figure10 InfraredDongle Position