Fluke 1504 10.1 CE Comments

•Stem conduction error.The problem may be that the actual temperature

of the sensor is not what you expect. This is often the result of stem con-

duction where heat flowing through the stem of the probe to ambient af-

fects the temperature of the probe. It is very important that immersion

probes be inserted to an adequately depth into the material being mea-

sured. Measuring temperature using a surface sensor can be especially

difficult as the sensor is directly exposed to ambient.

ErrorMessage at Power Up

The 1504 reportsan error during the power up self-test.

On powerup the 1504 performs a self-test of several of its key components. A

failureof a component will cause an error message to be displayed such as “Err

4”. The possibleerror messages and their meanings are as follows:

Err 1Static RAM failure.

Err 2Nonvolatile RAM failure.

Err 3Internal data structure error.

Err 4ADC initialization failure.

Err 5ADC operation error.

Generally,each of these conditions require a qualified factory technician to re-

place a faultycomponent. Contact the factory for assistance. One possible ex-

ception mightbe if a large static discharge nearby disturbs the circuits. Cycling

the poweroff and back on again may allow the 1504 to resume normal opera-

tion.Another might be if the AC source voltage is incorrect, e.g. using 115 V

when the 1504 isconfigured for 230 V. Check the source voltage and the

1504’sconfiguration and make sure they agree.

10.1 CE Comments

Hart Scientifics’equipment 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.

1504 Thermometer Readout

User’s Guide