Instructions

a) Use the menu function DATA RECORD - DATA PRINT to begin
sending recorded data uning text format. See Section 7.3.1.3, Data
Print.
b) The thermo-hygrometer should immediately begin sending the data. If
no readings have been stored, the thermo-hygrometer will not respond
to these commands.
4. If the terminal program was set to capture the incoming data to a file,
wait until no more data is being received, then stop capturing.
11.3 CE Comments
11.3.1 EMC Directive
Hart Scientific’s equipment has been tested to meet the European Electromag-
netic Compatibility Directive (EMC Directive, 89/336/EEC). The Declaration
of Conformity for your instrument lists the specific standards to which the unit
was tested.
The instrument was designed specifically as a test and measuring device.
Compliance to the EMC directive is through IEC 61326-1 Electrical equipment
for measurement, control and laboratory use - EMC requirements (1998).
As noted in the IEC 61326-1, the instrument can have varying configurations.
The instrument was tested in a typical configuration with shielded, grounded
probe and RS-232 cables. Emissions may, in non-typical applications, exceed
the levels required by the standard. It is not practical to test all configurations,
as the manufacturer has no control over the probes the user may connect to the
instrument.
11.3.1.1 Immunity Testing
The instrument was tested to the requirements for industrial locations.
This allows the instrument to be used in all types of locations from the labora
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tory to the factory floor. Criterion B was used for Radiated RF (IEC 61000-4-3)
and Conducted RF (IEC 61000-4-6). Therefore, the operation of the instrument
may be affected by excessive electromagnetic interference and the instrument
may not perform within the normal specification limits in such an environment.
Criterion C was used for Electrostatic Discharge
(ESD, IEC 61000-4-2) and Electric Fast Transit (EFT, Burst, IEC 61000-4-4).
If the instrument is subjected to EFT conditions at 2kV, the instrument may re
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quire the user to cycle the power to return to normal operation.
1620A “DewK” Thermo-hygrometer
User’s Guide
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