Casio E-CON Betriebsanweisung PDF herunterladen (Seite 23)

CLABUser’sGuide|23



sensorsbeleftto soakinacidsofbetween1‐3Mconcentrationforlonger

than48hours.TheexceptionstothisareHydrochlo ricacidHCLandSulphuric

acidH

.Themaximumexposuretimefortheseacidsare:



Acid Maximum

Exposure Time

1 M HCL

2 M HCL

3 M HCL

20 minutes

10 minutes

5 minutes

1 M H

2 M H

3 M H

48 hours

20 minutes

10 minutes



2.Suggestedexperiments

TheTemperaturesensorcanbeusedinmanyexperimentslike:

 Monitoringindoorandoutdoortemperatures.

 Monitoringfreezingandboilingwater.

 Monitoringendothermicandexothermicreactions.

 Specificheatexperiments.

 Insulationinvestigations.

 Solarenergystudies.

3.Technicaldata



Temperaturerange

‐40C..140C

Measuringelement

20kNTCThermistor; non‐linear

Calibration

(Steinhart‐Hartequation)



Coefficients

T=[K

+K

*ln(R)+K

*(ln(R))

]

‐1



WhereTthetemperatureinC,and

Rthemeasuredresistancein

=1.02119E‐03;K

=2.22468E‐04;K

=1.33342E‐07

Maximumtemperaturethatsensor

cantoleratewithoutdamage



150C

Accuracy

2Cat‐40C

0.6at30C

1.8Cat140C

Responsetime

(timefor90%changeinreading)

10seconds(inwaterwithstirring)

270seconds(instillair)

80seconds(inmovingair)

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