Delta DO 9704 manual Instrument Signals and Malfunctions, Err, Ful, Lou

Page 25

ENGLISH

their low heat conductivity.

12.The probes are not insulated from their external casing. Be very careful not to come into contact with live parts (above 48V) as this could be dangerous not only for the instrument but also for the operator, who could suffer an electric shock.

13.Avoid taking measurements in the presence of high frequency sources, microwaves or large magnetic fields, as the results would not be very reliable

14.Always clean the probes carefully after use.

15.After taking a pressure measurement, clean the probe pressure chamber accurately; do not let the fluid that comes in contact with the membrane leave any deposits or scale, with time these could cause errors in measurement.

16.Avoid inserting sharp points or nails in the pressure chamber; a sudden blow could accidentally break the membrane.

17.To secure the probes use a suitably sized spanner and, if necessary, sealing gaskets.

18.Great care must be taken when installing probes in pressurised containers or in pipes. Take care when choosing the full scale range of the probes. Apart from cau- sing irreparable damage to the probe, an error could cause quite serious physical harm to the operator and to objects in the vicinity. There should always be a stop key upstream from the probe. Ensure that there are no abnormal and sudden variations in the fluid under pressure.

19.The instrument is resistant to water but it is not watertight and should not therefore be immer- sed in water. If it should fall into the water, take it out immediately and check that no water has infiltrated. The instrument must be handled in such a way that water cannot get in through the connector side.

INSTRUMENT SIGNALS AND MALFUNCTIONS

Err	On the upper display indicates:
	* Error in reading the signal present at input A or B or A-B;
	* Error when, with A-B, the probes inserted do not have the same full scale value and
	are not of the same type.
FUL	Memory full.
LOU	When switching on this indicates that the instrument has switched off because the bat-
	tery voltage was too low when it was in storage or serial output status. Change the bat-
	tery even if there are no low battery signals.

89

Image 25

Contents Instructions Manual Page Pressure and Temperature DATA-LOGGER English Introduction Numbers Keyboard KEYSimbols LIT Besides Function DescriptionNumbers RELTom of the display Simbols LIT Besides Function Numbers DescriptionSerial Output Press the Prog key to move on to step P1 P0+300 Baud 600 BaudP1+ = data dump Storage P1+Hours minutes Seconds This parameter is used for the fol- lowing two functionsFunction P4+ = set year P3+P5+ = set month P6+ = set day P7+ = set hours P8+ = set minutes Self cut-out P9+To stop storage, press the Enter key P10+P10 Complete printing Reduced printingP11 P11+Data Call + Start-StopWhen this operative Operating modeKEY Simbols LIT Besides Ches itself off againSimbols LIT Besides Function Numbers Description Enter If the battery symbol does not flaMore than 30,000 acquisitions Restart itAfter having taken note Probe Connection HOW to MeasureVarious operations Method of Using the Instrument and Warnings Temperature MeasurementErr Instrument Signals and MalfunctionsFUL LOULOW Battery Warning and Battery Replacement Serial Interface RS 232C Storage of the InstrumentParity None Bit Stop bit Protocol Xon/Xoff Command Type ReplyType of terminal Dumping data from the memoryMemory clear Printer Diagram doExample of a Report Printed by the Instrument English Software connection with Windows Hardware connectionOK to confirm the setting one click Mark local Echo one click 100 101 102 Switch on the measuring instrument103 OK to confirm Cancel in the next window104 Parity None105 106 107 108 109 Select END from the pull-down sub-menu one click To end receiving data from an instrumentTo quit running the Hyper Terminal 110Vdc=465.5 Calibrating the Instrument doFlow Rate Measurements Connection of Probes to the Pressure Gauge Data Logger do Probe connection diagram Instrument do113 100 105 110 115 SEL RTurbine probe for measuring flow rate Between 4Gauge Classification of Pressure MeasurementsConversion Factors and Tables Psi = kPa Psi = Pa= 3,386 x 103 Pa = 2,491 x 102 Pa118 Connector DIN 45326 8-pole Instrument Technical DataWeight / dimensions 320 gr. / 215x73x38 mm Minimum, Mean, Relative, A-B differential120 121 Order Codes Guarantee Serial line Examples of USE of the KeyboardDisplay blocked 124125 Pressing Data Call repeatedly givesInstrument programming Sets day Sets yearSets hour 127Normal operating Enables self cut-out +Date and time Data printing is reduced 128Activation or disactivation of the Record function Activation or disactivation of the serial outputFunction Serial output active130 Activation and disactivation of the storage function131 Index132 EN61000-4-2, EN61010-1 level Safety