Problem Causesand Solutions
Temperaturereadout is not the
actualtemperature of the well
Withthe unit stable, slowly rotate the unit. If no change occurs, the unit
mayneed to be calibrated. Contact Hart Scientific Customer Service. If the
displaychanges more than twice the normal display deviation, another unit
inthe area could be emitting RF energy. Move the unit to a different loca-
tionand rotate the unit again. If the temperature is correct in this new area
ordeviates differently than the first area, RF energy is present in the room.
Ifyou have to perform the test in the effected area, use the comparison test
toeliminate any possible errors.
13.2 Comments
13.2.1 EMC Directive
Hart Scientific’sequipment has been tested to meet the European Electromag-
netic Compatibility Directive(EMC Directive, 89/336/EEC). Selection of Light
Industrialof Heavy Industrial compliance has been based on the intended use
of the instrument.Units designed for use in a calibration laboratory have been
testedto Light Industrial Standards. Units designed to be used in the “field”
havebeen tested to both Light Industrial and Heavy Industrial Standards. The
Declarationof Conformity for your instrument lists the specific standards to
which theunit was tested.
13.2.2 Low Voltage Directive (Safety)
In order to complywith the European Low Voltage Directive (73/23/EEC),
Hart Scientificequipment has been designed to meet the IEC 1010-1 (EN
61010-1) and theIEC 1010-2-010 (EN 61010-2-010) standards.
60 HartScientific
13Troubleshooting