Vaisala HMP260 SERIES Manuel de service

HMP260 SERIESTRANSMITTERSOperating ManualHMP260-U017en-1.55 January 1996 Vaisala 1996

HMP260 SERIESOperating Manual HMP260-U017en-1.54 1997-11-253. INSTALLATION3.1. Selecting the place of installationThe transmitters should be installed

HMP260 SERIESHMP260-U017en-1.5 Appendix 3: RS 485/422 serial port module5 SPECIFICATIONSConnections Berg socketson the main board screw terminals 0.5

HMP260 SERIESHMP260-U017en-1.5 Appendix 4: Digital current loop moduleINSTALLING AND USING THE DIGITAL CURRENT LOOP MODULEINSTALLING AND USING THE DIG

HMP260 SERIESAppendix 4: Digital current loop module HMP260-U017en-1.51 INSTALLATIONSwitch the transmitter off.Resistors R2, R3 and R4 between connect

HMP260 SERIESHMP260-U017en-1.5 Appendix 4: Digital current loop module2 OPERATIONThe HMP260 transmitters can either be given an address or operated wi

HMP260 SERIESAppendix 4: Digital current loop module HMP260-U017en-1.5The digital current loop module has separate lines for transmitting and receivin

HMP260 SERIESHMP260-U017en-1.5 Appendix 4: Digital current loop module3 NETWORK CONFIGURATIONSingle loop operationBidirectional data on one pair and g

HMP260 SERIESAppendix 4: Digital current loop module HMP260-U017en-1.5• Set the transmitter in POLL mode:>smode pollSerial mode : POLLNOTE 1The S

HMP260 SERIESHMP260-U017en-1.5 Appendix 4: Digital current loop moduleDual loop wiring• Set the address of the transmitter, it can be any number betwe

HMP260 SERIESAppendix 4: Digital current loop module HMP260-U017en-1.54 CHECKING THE SERIAL PORT NETWORK OPERATIONNormally measurement readings are as

HMP260 SERIESHMP260-U017en-1.5 Appendix 4: Digital current loop modulePOLL modeIf a transmitter has been set to POLL mode, it will respond only to com

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 53.2. MountingHMP263/264/265(EEx ia) IICSAFE AREA HAZARDOUS AREA EEx ia IIC T3/T4HMP263 s

HMP260 SERIESAppendix 4: Digital current loop module HMP260-U017en-1.55 SPECIFICATIONSGalvanic isolation 1500 VAC/DC max. (1 min)Loop supply voltage 4

HMP260 SERIESHMP260-U017en-1.5 Appendix 5: Error messagesERROR MESSAGESThe HMP260 transmitters go through a self-diagnostics procedure when the power

HMP260 SERIESAppendix 5: Error messages HMP260-U017en-1.5Errors during operationThere are two types of errors that may occur during the operation of t

HMP260 SERIESHMP260-U017en-1.5 Appendix 5: Error messagesThe LEDs indicate these errors as follows:¡¡¤¤ no frequency at all¡¡¤¡ a frequency missing fr

HMP260 SERIESHMP260-U017en-1.5 Appendix 6: Calculation formulas1 CALCULATIONThe HMP260 series transmitters measure relative humidity and temperature.

HMP260 SERIESAppendix 6: Calculation formulas HMP260-U017en-1.52 CORRECTIONS AT HIGH PRESSUREThe saturation pressure of water vapour calculated with e

BLUGRNYELBLKHMP 265 In automation system galvanically isolated inputsare recommended for current signalsMain board HMP230To control systemSupply volta

HMP263, HMP264 AND HMP265INSTALLATIONToolQtypcsDrawnReviewApprDesignReplacesScaleidTitleArchnoSerial Sheetdoc noCooperator`sDwg noRevLtr QtyChange Rea

HMP260 SERIESHMP260-U017en-1.5 Appendix 9: ApprovalsAPPROVALS AND SPECIFICATIONS OF THE PROTECTION UNITThe transmitter conforms to the European Standa

HMP260 SERIESOperating Manual HMP260-U017en-1.56 1997-11-25The transmitters should be mounted with the sensor head horizontally; thisway, any water co

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 7NOTEWhen using the support bar the lead-through piece andthe space between the duct wall an

HMP260 SERIESOperating Manual HMP260-U017en-1.58 1997-11-253. Insert the body of the sensor head into the fitting body and screw thenut manually to th

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 9Fig. 3.4 Some examples on the installation of the HMP264 sensor head(boring)threaded sleeve

HMP260 SERIESOperating Manual HMP260-U017en-1.510 1997-11-253.2.3. HMP265 transmitterto be sealedto be insulatedSAFE AREAHAZARDOUS AREAFig. 3.5 Instal

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 11a plugged holefor an Exi-approvedreference meterHAZARDOUS AREASAFE AREAFig. 3.7 Mounting t

HMP260 SERIESOperating Manual HMP260-U017en-1.512 1997-11-25• push back the braid and press it between the two brass disks toachieve a full 360° groun

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 13NOTEWhen the cable is grounded as above, the metallic partsof the sensor head, the shield

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HMP260 SERIESOperating Manual HMP260-U017en-1.514 1997-11-25VmA+-CURRENT/VOLTAGEOUTPUTSEXTERNALPOWER SUPPCH1+CH1-CH2+CH2-24 V +OPENED COVER OF THE HM

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 154. COMMISSIONINGWhen the HMP260 transmitters leave the factory, their measurement rangesan

HMP260 SERIESOperating Manual HMP260-U017en-1.516 1997-11-25CH2 CURRENT OUTPUTCH1 0 ... 1 VOLTAGE OUTPUTCH1CH2CH2CH1X15CURRENT OUTPUTS0 ... 20 / 4 ...

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 17Fig. 4.3 Spare jumpers4.3 Connecting the RS 232C serial busFig. 4.4 Serial bus connections

HMP260 SERIESOperating Manual HMP260-U017en-1.518 1997-11-25Fig. 4.5 Connection of cablesWhen the serial bus has been connected between the PC and the

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 19The RS 232C screw terminal cannot be used if an RS 485/422 serial moduleor a digital curre

HMP260 SERIESOperating Manual HMP260-U017en-1.520 1997-11-25jumper must be removed before the transmitter is reset. If the jumper is inplace when powe

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 215. COMMANDSAs the HMP260 transmitters are microprocessor based devices, theirconfiguration

HMP260 SERIESOperating Manual HMP260-U017en-1.522 1997-11-255.2 LED commandsNOTEIf the transmitter has a display/keypad cover, the LEDcommands cannot

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 235.3 Display/keypad commands5.3.1 Display modeIn the display mode the transmitters output m

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 iContents1. PRODUCT DESCRIPTION ...

HMP260 SERIESOperating Manual HMP260-U017en-1.524 1997-11-25numbers is ended with selecting a blank ' ' and pressing ENT. The last charac-te

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 25NOTEThe analogue output jumpers must be set to right places(see Fig. 4.2).5.3.4.2 Selectin

HMP260 SERIESOperating Manual HMP260-U017en-1.526 1997-11-255.3.5 Output via the serial bus5.3.5.1 Turning the serial interface echo ON/OFF• Select M

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 27Selecting stop bits:Full duplex/half duplex:The processor does not allow the following com

HMP260 SERIESOperating Manual HMP260-U017en-1.528 1997-11-255.3.5.4 Selecting the output units• Select Unit in the main menu:• Use the arrow keys to s

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 295.3.6.1 Setting the serial interface operation mode• Select Mode in the main menu; the fol

HMP260 SERIESOperating Manual HMP260-U017en-1.530 1997-11-25• Select More in the main menu, select More in the More menu andselect Mtim in the second

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 315.3.7.3 Setting the date• Select More in the main menu; select Date in the More menu:• If

HMP260 SERIESOperating Manual HMP260-U017en-1.532 1997-11-255.4 Serial commandsMore detailed descriptions of the serial commands can be found in Appen

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 335.4.1.2 Selecting and scaling the analogue output quantitiesDisconnect the security lock j

HMP260 SERIESOperating Manual HMP260-U017en-1.5ii 1997-11-255.4. Serial commands ...

HMP260 SERIESOperating Manual HMP260-U017en-1.534 1997-11-255.4.2 Output via the serial bus5.4.2.1 Starting the measurement outputR <cr>Starts o

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 355.4.2.4 Setting the output interval for the RUN modeINTV xxx yyy <cr>xxx = output

HMP260 SERIESOperating Manual HMP260-U017en-1.536 1997-11-255.4.2.6 Selecting the output unitsUNIT x <cr>x = m(etric units)n(on-metric units)me

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 37In POLL mode: measurements output only with command SEND. When inPOLL mode, the output sta

HMP260 SERIESOperating Manual HMP260-U017en-1.538 1997-11-256. CALIBRATIONThe HMP260 transmitters have been fully calibrated at the factory and theres

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 39NOTEIf the sensor has been changed, the calibration has to bedone according to the instruc

HMP260 SERIESOperating Manual HMP260-U017en-1.540 1997-11-256.1.1.3 Using LED commandsDisconnect the security lock jumper!• Make sure that the sensors

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 41• If you want to see how the sensor stabilizes to the humidity in thecalibrator, enter c &

HMP260 SERIESOperating Manual HMP260-U017en-1.542 1997-11-25• Wait for 10 minutes.• Connect an ammeter/voltmeter to the analogue outputs (connectorX2)

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 43• Press any key and enter the second point value and press <cr>.RH : xx.x Ref2 ?

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 iii8. TECHNICAL DATA...

HMP260 SERIESOperating Manual HMP260-U017en-1.544 1997-11-25• Check that the reading corresponds within the desired accuracy to thereading in the cali

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 456.2.1 One point offset correction6.2.1.1 Using serial commandsDisconnect the security lock

HMP260 SERIESOperating Manual HMP260-U017en-1.546 1997-11-256.2.1.3 Using LED commandsDisconnect the security lock jumper!• Leave the reference instru

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 47• The stabilization of the sensor can be monitored by entering c <cr>instead of the

HMP260 SERIESOperating Manual HMP260-U017en-1.548 1997-11-256.3 Calibration of analogue outputsThe analogue outputs have been calibrated at the factor

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 49• Connect the meter to the output of channel 2 and enter the measuredlower end current/vol

HMP260 SERIESOperating Manual HMP260-U017en-1.550 1997-11-257. MAINTENANCE7.1 Reference measurementsReference measurements are necessary for the verif

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 51When errors have occurred, the transmitter outputs the error code (see Appen-dix 3 for all

HMP260 SERIESOperating Manual HMP260-U017en-1.552 1997-11-25CH1+CH1-TEST POINTSCH1+CH1-mARLX2Fig. 7.4 Circuit diagram of the analogue output current t

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 538. TECHNICAL DATASpecifications of the protection unit, see Appendix 9.8.1 Relative humidi

HMP260 SERIESOperating Manual HMP260-U017en-1.5iv 1997-11-25This page intentionally left blank.

HMP260 SERIESOperating Manual HMP260-U017en-1.554 1997-11-25Accuracies of the calculated quantities depend on the accuracies of the meas-ured quantiti

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 55Accuracy of wet bulb temperature (°C)Relative humidityTemp. 102030405060708090100-40 0.20

HMP260 SERIESOperating Manual HMP260-U017en-1.556 1997-11-25Connections screw terminals, 0.5 mm2 wires (AWG20), stranded wires recommendedOperating vo

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 57Ø 13.5Ø 13.5cable length 2000,5000, 10 000 or 15 000 m2970Fig. 8.1 HMP263 sensor head dime

HMP260 SERIESOperating Manual HMP260-U017en-1.558 1997-11-258.8 Electromagnetic compatibilityThe emission and immunity tests have been performed accor

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 599. OPTIONSMounting flanges for HMP265 aluminiumstainless steel for harsh conditionsInstall

HMP260 SERIESHMP260-U017en-1.5 Appendix 1: Serial commandsSERIAL COMMANDS1 ANALOGUE OUTPUT COMMANDS ...

HMP260 SERIESAppendix 1: Serial commands HMP260-U017en-1.5

HMP260 SERIESHMP260-U017en-1.5 Appendix 1: Serial commands1 ANALOGUE OUTPUT COMMANDSAMODE Setting the analogue outputsDisconnect the security lock jum

HMP260 SERIESAppendix 1: Serial commands HMP260-U017en-1.5ASEL RH T <cr>Ch1 (RH) lo 0.000 %RH ? <cr>Ch1 (RH) hi 100.000 %RH ? <cr

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 11. PRODUCT DESCRIPTIONNOTEBefore installing and using the HMP260 transmitterstudy carefully

HMP260 SERIESHMP260-U017en-1.5 Appendix 1: Serial commandsThe output scales can also be given directly with the ASCL command.ASCL aaa.a bbb.b ccc.c d

HMP260 SERIESAppendix 1: Serial commands HMP260-U017en-1.52 CALIBRATION COMMANDSCRH Relative humidity calibrationDisconnect the security lock jumper!C

HMP260 SERIESHMP260-U017en-1.5 Appendix 1: Serial commandsFCRH Relative humidity calibration after sensor changeDisconnect the security lock jumper!FC

HMP260 SERIESAppendix 1: Serial commands HMP260-U017en-1.5In one-point offset correction, the Ref2 prompt is acknowledged with <cr>:CT <cr>

HMP260 SERIESHMP260-U017en-1.5 Appendix 1: Serial commandsLI Entering linear correction coefficientsDisconnect the security lock jumper!LI <cr>

HMP260 SERIESAppendix 1: Serial commands HMP260-U017en-1.53 OUTPUT VIA THE SERIAL BUSR Starting the measurement outputR <cr>Starts output of mea

HMP260 SERIESHMP260-U017en-1.5 Appendix 1: Serial commandsThe output mode can be changed with command FORM.DSEND Outputting readings of all connected

HMP260 SERIESAppendix 1: Serial commands HMP260-U017en-1.5ECHO Turning the serial interface echo ON/OFFECHO xxx <cr>xxx = ON or OFFWhen the ech

HMP260 SERIESHMP260-U017en-1.5 Appendix 1: Serial commandsFORM Setting the output formatFORM <cr>"xxx...xxx"? zzz...zzz <cr>xx

HMP260 SERIESAppendix 1: Serial commands HMP260-U017en-1.5An example of a format suitable for use in Microsoft Excel spreadsheets:FORM <cr>"

HMP260 SERIESOperating Manual HMP260-U017en-1.52 1997-11-25OptionsCalculation variables dewpoint temperature, mixing ratio, absolute hu-midity, wet bu

HMP260 SERIESHMP260-U017en-1.5 Appendix 1: Serial commandsFDATE Adding date to outputFDATE xxx <cr>xxx = ON or OFFWhen FDATE is activated, the

HMP260 SERIESAppendix 1: Serial commands HMP260-U017en-1.5The settings can be changed one parameter at a time or all parameters at once:SERI O H <c

HMP260 SERIESHMP260-U017en-1.5 Appendix 1: Serial commandsADDR Setting the transmitter addressADDR aa <cr>aa = address (0...99)The address is u

HMP260 SERIESAppendix 1: Serial commands HMP260-U017en-1.5OPEN aa <cr>SMODE xxxx<cr>aa = address of the transmitterxxxx = STOP, RUN or P

HMP260 SERIESHMP260-U017en-1.5 Appendix 1: Serial commands4 OTHERSITEST Testing the analogue outputsITEST <cr>orITEST a b <cr>a = current

HMP260 SERIESAppendix 1: Serial commands HMP260-U017en-1.5MTIM <cr>Mtim : 4 ? 5 <cr>orMTIM 5 <cr>Mtim : 5PRES Setting the pressure

HMP260 SERIESHMP260-U017en-1.5 Appendix 1: Serial commandsor pressure is set to zero using XPRES. After this the pressure stored using commandPRES is

HMP260 SERIESAppendix 1: Serial commands HMP260-U017en-1.5VERS Name and version of the programmeVERS <cr>For example:VERS <cr>HMPS 260 / x

HMP260 SERIESHMP260-U017en-1.5 Appendix 2: Safety summarySAFETY SUMMARYIn this summary the following symbols are used:WARNINGA WARNING denotes a hazar

HMP260 SERIESAppendix 2: Safety summary HMP260-U017en-1.5CAUTIONOnly fuses with the required current rating and of thespecified type may be used. Do n

HMP260 SERIESHMP260-U017en-1.5 Operating Manual1997-11-25 32. TO BE NOTED WHEN MEASURING HUMIDITYIn the measurement of humidity and especially in cali

HMP260 SERIESHMP260-U017en-1.5 Appendix 3: RS 485/422 serial port moduleINSTALLING AND USING THE RS 485/422 SERIAL PORT MODULE1 INSTALLATION...

HMP260 SERIESAppendix 3: RS 485/422 serial port module HMP260-U017en-1.51 INSTALLATIONSwitch the transmitter off.Resistors R2, R3 and R4 between conne

HMP260 SERIESHMP260-U017en-1.5 Appendix 3: RS 485/422 serial port module2 OPERATIONThe HMP260 transmitters can either be given an address or operated

HMP260 SERIESAppendix 3: RS 485/422 serial port module HMP260-U017en-1.5The RS 485/422 module has separate lines for transmitting and receiving, butth

HMP260 SERIESHMP260-U017en-1.5 Appendix 3: RS 485/422 serial port module3 NETWORK CONFIGURATIONSingle loop operationBidirectional data on one pair is

HMP260 SERIESAppendix 3: RS 485/422 serial port module HMP260-U017en-1.5• Set the address of the transmitter; it can be any number between 1and 99. In

HMP260 SERIESHMP260-U017en-1.5 Appendix 3: RS 485/422 serial port module• Open the transmitter cover.• Pull out the RS 485/422 serial port module, if

HMP260 SERIESAppendix 3: RS 485/422 serial port module HMP260-U017en-1.5NOTE 2The transmitter outputs no prompt (>) after the SMODEPOLL command and

HMP260 SERIESHMP260-U017en-1.5 Appendix 3: RS 485/422 serial port module4 CHECKING THE SERIAL PORT NETWORK OPERATIONNormally measurement readings are

HMP260 SERIESAppendix 3: RS 485/422 serial port module HMP260-U017en-1.5POLL modeIf a transmitter has been set to POLL mode, it will respond only to c