Delta DO 9704 manual Temperature Measurement, Method of Using the Instrument and Warnings

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ENGLISH

TEMPERATURE MEASUREMENT

Immersion temperature measurements are performed by introducing the probe to a minimum depth of 60 mm into the liquid in which you want to take the measurement; the sensor is housed in the end of the probe.

To take measurements in air, the probe must be pointed in a transverse direction to the air flow.

In both cases, to ensure correct measurement avoid contact of the probe with the walls of the con- tainer holding the liquid or of the duct in which the air to be measured is passing.

When taking penetration measurements the tip of the probe must be inserted at a depth of at least 60 mm; the sensor is housed in the end of the probe. When taking measurements on frozen blocks it is convenient to use a mechanical tool to make a cavity in which to insert the pointed probe.

To perform a contact measurement correctly the surface must be flat and smooth and the probe must be perpendicular to the measuring plain.

To obtain a correct measurement, the application of a little heat-conductive paste or a drop of oil (water or solvents must absolutely not be used) helps to improve the response time.

METHOD OF USING THE INSTRUMENT AND WARNINGS

1.Do not expose the probes to gases or liquids that could corrode the material of the sensor or the probe; clean the probe carefully after use.

2.Do not bend the connectors applying upward or downward force.

3.Do not bend or force the contacts when inserting the probe connector in the instrument.

4.Do not bend, deform or drop the probes as this could cause irreparable damage.

5.Always use the most suitable probe for the measurement to be taken.

6.Be careful with the range of use of the probe, measurements at limit values are possible only for short periods.

7.Do not use the temperature probes in the presence of corrosive gases or liquids; the container in which the sensor is housed is made of stainless steel AISI 316, while the container for the contact probe is of AISI 316 plus silver. Do not let the surfaces of the probe come in contact with sticky surfaces or with substances that can corrode or damage the probe. If the sensor breaks or becomes faulty it must be replaced. In this case the probe must be recalibrated.

8.Above 400°C, avoid violent blows or thermal shock to the Pt100 temperature probes as these could cause irreparable damage.

9.To obtain a reliable temperature measurement, too fast temperature variations must be avoi- ded.

10.Temperature probes for surface measurements must be held in a vertical position with respect to the surface. Apply a drop of oil or heat-conductive paste between the surface and the sensor so as to improve contact and reduce the reading time. Do not use water or solvents to do this.

11.Temperature measurements on non-metal surfaces require a great deal of time on account of

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Contents Instructions Manual Page Pressure and Temperature DATA-LOGGER English Introduction Keyboard KEY NumbersFunction Description Simbols LIT BesidesNumbers RELSimbols LIT Besides Function Numbers Description Tom of the displaySerial Output P0+ Press the Prog key to move on to step P1300 Baud 600 BaudP1+ = data dump P1+ StorageHours minutes Seconds This parameter is used for the fol- lowing two functionsFunction P3+ P4+ = set yearP5+ = set month P6+ = set day P7+ = set hours P8+ = set minutes P9+ Self cut-outP10+ To stop storage, press the Enter keyP10 Complete printing Reduced printingP11+ P11Data Call + Start-StopOperating mode When this operativeKEY Simbols LIT Besides Ches itself off againIf the battery symbol does not fla Simbols LIT Besides Function Numbers Description EnterRestart it More than 30,000 acquisitionsAfter having taken note HOW to Measure Probe ConnectionVarious operations Temperature Measurement Method of Using the Instrument and WarningsInstrument Signals and Malfunctions ErrFUL LOULOW Battery Warning and Battery Replacement Storage of the Instrument Serial Interface RS 232CCommand Type Reply Parity None Bit Stop bit Protocol Xon/XoffType of terminal Dumping data from the memoryMemory clear Diagram do PrinterExample of a Report Printed by the Instrument English Hardware connection Software connection with WindowsOK to confirm the setting one click Mark local Echo one click 100 101 Switch on the measuring instrument 102OK to confirm Cancel in the next window 103Parity None 104105 106 107 108 109 To end receiving data from an instrument Select END from the pull-down sub-menu one clickTo quit running the Hyper Terminal 110Calibrating the Instrument do Vdc=465.5Flow Rate Measurements Probe connection diagram Instrument do Connection of Probes to the Pressure Gauge Data Logger do113 SEL R 100 105 110 115Turbine probe for measuring flow rate Between 4Classification of Pressure Measurements GaugeConversion Factors and Tables Psi = Pa Psi = kPa= 3,386 x 103 Pa = 2,491 x 102 Pa118 Instrument Technical Data Connector DIN 45326 8-poleWeight / dimensions 320 gr. / 215x73x38 mm Minimum, Mean, Relative, A-B differential120 121 Order Codes Guarantee Examples of USE of the Keyboard Serial lineDisplay blocked 124Pressing Data Call repeatedly gives 125Instrument programming Sets year Sets daySets hour 127Enables self cut-out + Normal operatingDate and time Data printing is reduced 128Activation or disactivation of the serial output Activation or disactivation of the Record functionFunction Serial output activeActivation and disactivation of the storage function 130Index 131132 Safety EN61000-4-2, EN61010-1 level
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