Vaisala HMP230 Manuel d'utilisateur Page 1

HMP230 Series TransmittersUSER'S GUIDEM210225en-BMay 2002

HMP230 SERIESUser's Guide M210225en-B43. INSTALLATION3.1. Selecting the place of installationChoose a place which gives a true picture of the e

HMP230 SERIESAppendix 1: Serial commands M210225en-B94ADDR Setting the transmitter addressADDR aa <cr>aa = address (0...99)The address is used

HMP230 SERIESM210225en-B Appendix 1: Serial commands953.1 Operation modesSMODE Setting the serial interfaceSMODE xxxx<cr>xxxx = STOP, RUN or PO

HMP230 SERIESAppendix 1: Serial commands M210225en-B96When more than one transmitter is connected to the same serial bus, the POLLmode makes it possib

HMP230 SERIESM210225en-B Appendix 1: Serial commands974. OTHERSITEST Testing the analogue outputsITEST <cr>orITEST a b <cr>a = current/vo

HMP230 SERIESAppendix 1: Serial commands M210225en-B98FILT Setting the averaging timeDisconnect the security lock jumper!FILT nnnn <cr>nnnn = av

HMP230 SERIESM210225en-B Appendix 1: Serial commands99When the command is given, the transmitter first gives the currently usedpressure; after this a

HMP230 SERIESAppendix 1: Serial commands M210225en-B100DATE Setting the dateDATE <cr>For example, to enter a new date:>DATE <cr>Current

HMP230 SERIESM210225en-B Appendix 1: Serial commands101TIME Setting the timeTIME <cr>For example, to enter a new time:>TIME <cr>Current

HMP230 SERIESAppendix 1: Serial commands M210225en-B102?? Outputting the transmitter settings also in POLL mode?? <cr>Command ?? outputs the sam

HMP230 seriesM210225en-B Appendix 2: Installing the power supply module103INSTALLING THE POWER SUPPLY MODULEThe mains power connection may be connecte

HMP230 SERIESM210225en-B User's Guide53.2. Mounting3.2.1. Mounting the HMP231The best position for mounting the HMP231 is with the probe head p

HMP230 seriesAppendix 2: Installing the power supply module M210225en-B104Peel the correct power supply voltage from the sticker enclosed in the power

HMP230 seriesM210225en-B Appendix 2: Installing the power supply module105TECHNICAL SPECIFICATIONSOperating voltage 115 VAC (93...127 V)230 VAC (187..

HMP230 SERIESAppendix 3: RS 485/422 serial port module M210225en-A106INSTALLING AND USING THE RS 485/422 SERIAL PORT MODULE1. INSTALLATION ...

HMP230 SERIESM210225en-A Appendix 3: RS 485/422 serial port module1071. INSTALLATIONSwitch the transmitter off.Resistors R2, R3 and R4 between connect

HMP230 SERIESAppendix 3: RS 485/422 serial port module M210225en-A1082. OPERATIONThe HMP230 transmitters can either be given an address or operated wi

HMP230 SERIESM210225en-A Appendix 3: RS 485/422 serial port module109The RS 485/422 module has separate lines for transmitting and receiving, butthey

HMP230 SERIESAppendix 3: RS 485/422 serial port module M210225en-A1103. NETWORK CONFIGURATIONSingle loop operationBi-directional data on one pair is o

HMP230 SERIESM210225en-A Appendix 3: RS 485/422 serial port module111•Set the address of the transmitter; it can be any number between 1and 99. In thi

HMP230 SERIESAppendix 3: RS 485/422 serial port module M210225en-A112Dual loop operationThe following procedure must be repeated with all transmitters

HMP230 SERIESM210225en-A Appendix 3: RS 485/422 serial port module113NOTE 1The SMODE command must be given last.NOTE 2The transmitter outputs no promp

HMP230 SERIESUser's Guide M210225en-B6NOTEDuring installation the sensor head must not be unsol-dered from and again resoldered to the main print

HMP230 SERIESAppendix 3: RS 485/422 serial port module M210225en-A1144. CHECKING THE SERIAL PORT NETWORK OPERATIONNormally measurement readings are as

HMP230 SERIESM210225en-A Appendix 3: RS 485/422 serial port module115POLL modeIf a transmitter has been set to POLL mode, it will respond only to comm

HMP230 SERIESAppendix 3: RS 485/422 serial port module M210225en-A1165. SPECIFICATIONSConnections Berg socketson the main board screw terminals 0.5 mm

HMP230 SERIESM210225en-B Appendix 4: Digital current loop module117INSTALLING AND USING THE DIGITAL CURRENT LOOP MODULE1. INSTALLATION...

HMP230 SERIESAppendix 4: Digital current loop module M210225en-B1181. INSTALLATIONSwitch the transmitter off.Resistors R2, R3 and R4 between connector

HMP230 SERIESM210225en-B Appendix 4: Digital current loop module1192. OPERATIONThe HMP230 transmitters can either be given an address or operated with

HMP230 SERIESAppendix 4: Digital current loop module M210225en-B120The digital current loop module has separate lines for transmitting and receiv-ing.

HMP230 SERIESM210225en-B Appendix 4: Digital current loop module1213. NETWORK CONFIGURATIONSingle loop operationBi-directional data on one pair and ga

HMP230 SERIESAppendix 4: Digital current loop module M210225en-B122•Set the transmitter in POLL mode:>smode pollSerial mode : POLLNOTE 1The SMODE c

HMP230 SERIESM210225en-B Appendix 4: Digital current loop module123Dual loop wiring• Set the address of the transmitter, it can be any number between

HMP230 SERIESM210225en-B User's Guide7The sensor head can also be installed vertically.Figure 4 Vertical installation of the HMP233 sensor head3.

HMP230 SERIESAppendix 4: Digital current loop module M210225en-B1244. CHECKING THE SERIAL PORT NETWORK OPERATIONNormally measurement readings are aske

HMP230 SERIESM210225en-B Appendix 4: Digital current loop module125POLL modeIf a transmitter has been set to POLL mode, it will respond only to comman

HMP230 SERIESAppendix 4: Digital current loop module M210225en-B1265. SPECIFICATIONSGalvanic isolation 1500 VAC/DC max. (1 min)Loop supply voltage 40

HMP230 SERIESM210225en-B Appendix 5: Error messages127ERROR MESSAGES1. ERROR TYPES ...

HMP230 SERIESAppendix 5: Error messages M210225en-B1281. ERROR TYPESThe HMP230 transmitters go through a self-diagnostics procedure when thepower is s

HMP230 SERIESM210225en-B Appendix 5: Error messages129E21 PRB EEPROM ackn. error- no connection to the EEPROM including calibration information can be

HMP230 SERIESAppendix 5: Error messages M210225en-B1301.2 Errors during operationTwo types of errors are possible during operation of the transmitters

HMP230 SERIESM210225en-B Appendix 5: Error messages131E44 f (Rk2 ) out of range- the temperature measurement cannot be completed. Check the temperat

HMP230 SERIESAppendix 5: Error messages M210225en-B132The second error type indicates erroneous y-values (used in internal calcula-tions):Display: Ser

HMP230 SERIESM210225en-B Appendix 6: Calculation formulas133CALCULATION FORMULASThe HMP230 series transmitters measure relative humidity and temperatu

HMP230 SERIESUser's Guide M210225en-B8tightening conesealing washerfitting bodynut4. Mark both the fitting body and the nut hex. A pen

HMP230 SERIESAppendix 6: Calculation formulas M210225en-B134The vapour pressure (in Pascals) is calculated using equation:å−=Θ+Θ=314lnlniiiwsbbP(6)whe

HMP230 SERIESM210225en-B Appendix 7: Alarm output unit135ALARM OUTPUT UNITThe alarm output unit consists of two alarm relays and two opto-isolatedoutp

HMP230 SERIESAppendix 7: Alarm output unit M210225en-B136 -+-+-+signal cable gland X3X16ribbon cable M3 screws (4 pcs) for mountin

HMP230 SERIESM210225en-B Appendix 7: Alarm output unit137Setting and activating the outputs with menu commands• Select MORE in the main menu and then

HMP230 SERIESAppendix 7: Alarm output unit M210225en-B138The currently valid settings of the alarm output unit can be checked withcommand ALARM:>al

HMP230 SERIESM210225en-B Appendix 7: Alarm output unit139with commands ALARM 1 ON and ALARM 2 ON:>alarm 1 ONCh1 Td HI ON -20.00 5.00 'CCh2 T H

HMP230 SERIESAppendix 8: Connectors M210225en-B140CONNECTORS1.1 Connector options ...

HMP230 SERIESM210225en-B Appendix 8: Connectors1411.1 Connector optionsThe HMP230 series transmitters can be ordered with various connectorconfigurati

HMP230 SERIESAppendix 8: Connectors M210225en-B1421.3 Serial connectionsAlso an RS232C serial bus can be connected to the connector; in this case, the

HMP230 SERIESM210225en-B Appendix 8: Connectors1431.4 Instructions for connecting and mounting the counter piecesThe counter piece has to be grounded

HMP230 SERIESM210225en-B User's Guide9(boring)threaded sleeve M22x1.5/Ø40 x15sheet metalnut DIN 80705-M22x1.5 (AISI 316)Sealing by Metal sealing

HMP230 SERIESAppendix 9: Re-gaining M210225en-B144RE-GAINING1. GENERAL...

HMP230 SERIESM210225en-B Appendix 9: Re-gaining1451. GENERALIn some applications the sensor gain may decrease gradually due to aninterference caused b

HMP230 SERIESAppendix 9: Re-gaining M210225en-B1462. TO BE NOTED IN RE-GAININGRe-gaining cannot be started automatically or manually unless thesecurit

HMP230 SERIESM210225en-B Appendix 9: Re-gaining147suitable in an ambient with a gas flow rate of 2 m/s or more around the sensorhead. Furthermore, if

HMP230 SERIESAppendix 9: Re-gaining M210225en-B1484. DISPLAY/KEYPAD COMMANDSPress the CL key to enter the command mode. Select More from the firstmenu

HMP230 SERIESM210225en-B Appendix 9: Re-gaining149Use arrow keys to change the status of the automatic re-gaining and pressENT.Acknowledge the current

HMP230 SERIESAppendix 9: Re-gaining M210225en-B1505. SERIAL COMMANDSREG Re-gaining settingsREG <cr>REG nnn <cr>nnn = ON or OFFCommand REG

HMP230 SERIESM210225en-B Appendix 9: Re-gaining151CRI Changing re-gaining parametersDisconnect the security lock jumper!CRI <cr>With command CRI

HMP230 SERIESAppendix 9: Re-gaining M210225en-B152Example: activating status display>fst onForm. status : ON>rN 0 RH= 20.8 %RH T= 25.6 'C N

HMP230 SERIESM210225en-B Appendix 9: Re-gaining153Example:>regenRegeneration started, press any key to abort>rS 162 RH= 20.0 %RH T= 26.5 'C

HMP230 SERIESUser's Guide M210225en-B103.2.5. HMP235 transmitterto be sealed to be insulated Figure 6 Installing a transmitter in a process

HMP230 SERIESAppendix 9: Re-gaining M210225en-B1546. TECHNICAL DATAPower consumption during re-gaining(without alarm output unit) 170 mA maximum (24 V

HMP230 TransmitterAppendix 10155PRESSURE UNIT CONVERSION CHARTMultiplication factorsNOTE: conversions from mmHg and inHg are defined at 0°C and for mm

APPENDIX 11WIRING DIAGRAMDigital cur-rent loopIn automation system the galvanically isolated inputsare recommended for current signalsMain board HMP23

VAI S ALA _________________________________________________________________________ WarrantyVaisala hereby represents and warrants all Products manufa

HMP230 SERIESM210225en-B User's Guide11Figure 8 Mounting the sensor head on a duct or channel.When the sensor head is installed in a duct or chan

HMP230 SERIESUser's Guide M210225en-B12Figure 10. HMP237 cable installation.3.2.7. HMP238 transmitterThe atmospheric pressure has an effect on m

HMP230 SERIESM210225en-B User's Guide13PROBE UP PROBE PUSHEDDOWN cable length 2, 5 or 10 m ø5.517831ø13.5adjustment range12

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HMP230 SERIESUser's Guide M210225en-B14The fitting body can be installed e.g. on standard pipe fittings (G 1/2 ISO228/1) or on a thread in the pr

HMP230 SERIESM210225en-B User's Guide15 process pipe welded sleeve (G1/2)Non leaking screw(screw A)closing valve (ball valve)s

HMP230 SERIESUser's Guide M210225en-B163.2.7.2. Installing the probe through the ball valve assemblyThe best way to install the sensor head is t

HMP230 SERIESM210225en-B User's Guide17See Figure 16 through Figure 18 for detailed description of installationthrough the ball valve assembl

HMP230 SERIESUser's Guide M210225en-B18• STEP 2: open the ball valve assemblyR1/2 ISO 7/1 120mmø5.561(40)148 mmmanual presstoolprobe pipefit

HMP230 SERIESM210225en-B User's Guide19• STEP 3: push the probe head through the ball valve assembly into theprocess. If the pressure is high, u

HMP230 SERIESUser's Guide M210225en-B20Figure 19 Installing the sensor head for by-pass measurements.When pushing the probe head through the ball

HMP230 SERIESM210225en-B User's Guide21• slip the brass disk that has the bigger hole in it over the braid so thatit rests against the cable insu

HMP230 SERIESUser's Guide M210225en-B22NOTEWhen the cable is grounded as above, the metallic partsof the sensor head, the shield of its cable, th

HMP230 SERIESM210225en-B User's Guide23Power supply 24 VDC24 VAC (see page 23)with power supply module 115/230 VACOutput signals 0...20 mA, 4...2

HMP230 SERIESM210225en-B User's GuideiContents1. PRODUCT DESCRIPTION...

HMP230 SERIESUser's Guide M210225en-B244. COMMISSIONINGWhen HMP230 transmitters leave the factory, their measurement ranges andoutput signals ha

HMP230 SERIESM210225en-B User's Guide25OPENED COVER OF THE HMP 230X15CHANGE OF SETTINGSDISABLEDFigure 22 Location of the security lock jumperWhen

HMP230 SERIESUser's Guide M210225en-B26CH2 CURRENT OUTPUT CH1 0 ... 1 VOLTAGE OUTPUT OPENED COVER OF THE HMP230

HMP230 SERIESM210225en-B User's Guide27OPENED COVER OF THE HMP230 X55spare jumpersFigure 24 Spare jumpers4.4. Connecting the RS 232C

HMP230 SERIESUser's Guide M210225en-B28253372372TXGNDRXTXGNDRXTXGNDRXHMP 230D9SD25SD25PPCTXDRXDTXDTXDRXDRXD467856820TERMINALFigure 26 Connection

HMP230 SERIESM210225en-B User's Guide29In calibrating or changing the settings of the transmitter it can be more con-venient to use the connector

HMP230 SERIESUser's Guide M210225en-B30When the jumper is inserted the serial line factory settings become valid, butonly temporarily. The transm

HMP230 SERIESM210225en-B User's Guide315. CONNECTION TO PCConnect a serial connection cable to the appropriate connectors on your PCand in the H

HMP230 SERIESUser's Guide M210225en-B32Giving the communication parameters in Windows 3.1Giving parameters in Windows 95 and Windows NTWINDOWS 95

HMP230 SERIESM210225en-B User's Guide33Selecting the parameters in Windows 95 and NT

HMP230 SERIESUser's Guide M210225en-Bii6.3.7.2. Setting the pressure for pressure compenstion of the HUMICAP sensorand for mixing ratio, wet bul

HMP230 SERIESUser's Guide M210225en-B346. COMMANDSThe HMP230 transmitters use microprocessors; therefore their configurationcan be set according

HMP230 SERIESM210225en-B User's Guide356.2. LED commandsNOTEIf the transmitter has a display/keypad cover, the LEDcommands cannot be used.LED co

HMP230 SERIESUser's Guide M210225en-B366.3. Display/keypad commands6.3.1. Display modeIn the display mode the transmitters output measurements

HMP230 SERIESM210225en-B User's Guide376.3.4. Analogue output commands6.3.4.1. Selecting the output (mA/V)Disconnect the security lock jumper!•

HMP230 SERIESUser's Guide M210225en-B386.3.4.2. Selecting and scaling the analogue output quantitiesDisconnect the security lock jumper!• Select

HMP230 SERIESM210225en-B User's Guide396.3.5. Output via the serial bus6.3.5.1. Turning the serial interface echo ON/OFF• Select More in the ma

HMP230 SERIESUser's Guide M210225en-B40Selecting stop bits:Full duplex/half duplex:The processor does not allow the following combinations:• no p

HMP230 SERIESM210225en-B User's Guide416.3.5.4. Selecting the output units• Select Unit in the main menu:• Use the arrow keys to select the righ

HMP230 SERIESUser's Guide M210225en-B42the connection returns the transmitter to POLL state. In POLL state thetransmitter outputs measurement onl

HMP230 SERIESM210225en-B User's Guide436.3.7. Others6.3.7.1. Setting the averaging timeDisconnect the security lock jumper!With command FILT th

HMP230 SERIESM210225en-B User's Guideiii8.4. Temperature channel adjustment with Pt 100 simulators... 678.4.1. Ad

HMP230 SERIESUser's Guide M210225en-B44• Select More in the main menu:• Select Pres:• Pressing ENT returns the program to the main menu without c

HMP230 SERIESM210225en-B User's Guide45• If the time needs to be changed, press CL.− first the hours (14) start flashing; use the arrow keys to c

HMP230 SERIESUser's Guide M210225en-B466.4. Serial commandsMore detailed descriptions of the serial commands can be found in Appendix1. Here onl

HMP230 SERIESM210225en-B User's Guide476.4.1.2. Selecting and scaling the analogue output quantitiesDisconnect the security lock jumper!ASEL xx

HMP230 SERIESUser's Guide M210225en-B486.4.2. Output via the serial bus6.4.2.1. Starting the measurement outputR <cr>Starts output of mea

HMP230 SERIESM210225en-B User's Guide496.4.2.4. Setting the output interval for the RUN modeINTV xxx yyy <cr>xxx = output interval (0...

HMP230 SERIESUser's Guide M210225en-B506.4.2.6. Selecting the output unitsUNIT x <cr>x = m(etric units)n(on-metric units)quantity metric

HMP230 SERIESM210225en-B User's Guide516.4.2.9. Setting the calculation modeDisconnect the security lock jumper!FROST ON/OFF <cr>This comm

HMP230 SERIESUser's Guide M210225en-B52Example:>SMODE STOP <cr> setting STOP stateSerial mode : STOP6.4.3.2. OPEN & CLOSEOPEN nn &

HMP230 SERIESM210225en-B User's Guide537. CALIBRATIONThe HMP230 transmitters have been fully calibrated at the factory and thereshould be no imm

HMP230 SERIESUser's Guide M210225en-BivThis page intentionally left blank.

HMP230 SERIESUser's Guide M210225en-B547.1.1. One point calibration procedureThe HMI38 humidity data processor or the HMI41 indicator can be use

HMP230 SERIESM210225en-B User's Guide557.1.1.2. With display/keypad commands• Make sure that the sensors of the transmitter and the reference in

HMP230 SERIESUser's Guide M210225en-B567.1.2.1. With serial commands• Leave the calibrator and the transmitter for at least 4 hours in thesame s

HMP230 SERIESM210225en-B User's Guide57• Insert the sensor head into a measurement hole of the NaCl chamber.• Wait at least 30 minutes.• If neces

HMP230 SERIESUser's Guide M210225en-B58• Give command FCRH <cr>, enter the first point value and press <cr>:>FCRH <cr>RH :

HMP230 SERIESM210225en-B User's Guide59• Wait at least 30 minutes.• Connect an ammeter/voltmeter to the analogue outputs (connectorX2). Give comm

HMP230 SERIESUser's Guide M210225en-B607.2. Temperature calibrationThe temperature channel has been calibrated at the factory and since it is ve

HMP230 SERIESM210225en-B User's Guide61• If you want to see how the sensor stabilizes to the referencetemperature, enter c <cr> instead of

HMP230 SERIESUser's Guide M210225en-B627.2.2. Two point temperature calibration7.2.2.1. With serial commands• Leave the reference instrument an

HMP230 SERIESM210225en-B User's Guide63• Check that the reading corresponds with the reading of the referenceinstrument. If not, adjust the secon

HMP230 SERIESM210225en-B User's Guide11. PRODUCT DESCRIPTIONThe HMP230 series transmitters are microprocessor based instruments for themeasureme

HMP230 SERIESUser's Guide M210225en-B64>ACAL <cr>Ch1 U1 ( V ) ? 2.233 <cr>Ch1 U2 ( V ) ? 8.25 <cr>Ch2 U1 ( V ) ? 2.218 &l

HMP230 SERIESM210225en-B User's Guide65• the LED on the left flashes; set the low end of channel 1 with the ar-row keys and press ENT• the second

HMP230 SERIESUser's Guide M210225en-B668. MAINTENANCE8.1. Reference measurementsReference measurements are needed to verify whether the transmi

HMP230 SERIESM210225en-B User's Guide67When errors have occurred, the transmitter outputs the error code (see Appen-dix 5 for all error messages)

HMP230 SERIESUser's Guide M210225en-B68Set the Pt 100 simulator at the highest temperature to be calibrated and pressany key. Enter the second po

HMP230 SERIESM210225en-B User's Guide698.5. Measurement of output currents using test pointsIf a current output has been connected e.g. to a pro

HMP230 SERIESUser's Guide M210225en-B708.6. Adjusting the contrast of the displayThe contrast of the display can be adjusted using the trimmer &

HMP230 SERIESM210225en-B User's Guide719. TECHNICAL DATA9.1. Relative humidityMeasuring range 0...100 %RHAccuracy (including nonlinearity and r

HMP230 SERIESUser's Guide M210225en-B72Typical ranges - HMP233/234/235/237/238dewpoint temperature -40...+100 °Cmixing ratio 0...500 g/kg dry air

HMP230 SERIESM210225en-B User's Guide73Accuracy of wet bulb temperature (°C)Relative humidityTemp. 10 20 30 40 50 60 70 80 90 100-40 0.20 0.20 0.

HMP230 SERIESUser's Guide M210225en-B2OptionsCalculation vari-ablesdewpoint temperature, mixing ratio, absolute hu-midity, wet bulb temperature,

HMP230 SERIESUser's Guide M210225en-B749.6. ElectronicsUser interface 3 keys and 4 LEDs inside the housing or local display keypadDisplay 2 x 16

HMP230 SERIESM210225en-B User's Guide759.7. MechanicsHousing material G-AlSi12 (DIN 1725)Housing classification IP 65 (NEMA 4)Bushing for 7...10

HMP230 SERIESUser's Guide M210225en-B76Figure 34 HMP233 sensor head dimensionsFitting body hex=27Nut hex=32cable length 2000,5000 or 10000 mm1701

HMP230 SERIESM210225en-B User's Guide779.8. Electromagnetic compatibilityHMP230 series transmitters fulfill the standard EN 61326-1:1997 +Am1:19

HMP230 SERIESUser's Guide M210225en-B7810. SPARE PARTS AND OPTIONSOrder code DescriptionHMP235FS Mounting flange for HMP235, stainless steelHMP2

HMP230 SERIESM210225en-B User's Guide7911. FACTORY CALIBRATION AND REPAIR SERVICEVaisala SSD Service CentresVaisala SSD Service, Vanha Nurmijärv

HMP230 SERIESAppendix 1: Serial commands M210225en-B80SERIAL COMMANDS1. ANALOGUE OUTPUT COMMANDS ...

HMP230 SERIESM210225en-B Appendix 1: Serial commands811. ANALOGUE OUTPUT COMMANDSAMODE Setting the analogue outputsDisconnect the security lock jumper

HMP230 SERIESAppendix 1: Serial commands M210225en-B82ASEL Scaling the analogue outputsDisconnect the security lock jumper!ASEL xxx yyy <cr>xx

HMP230 SERIESM210225en-B Appendix 1: Serial commands83ASCL Scaling the analogue outputsDisconnect the security lock jumper!ASCL <cr>Scales the

HMP230 SERIESM210225en-B User's Guide32. TO BE NOTED WHEN MEASURING HUMIDITYIn the measurement of humidity and especially in calibration it is e

HMP230 SERIESAppendix 1: Serial commands M210225en-B842. CALIBRATION COMMANDSCRH Relative humidity calibrationDisconnect the security lock jumper!CRH

HMP230 SERIESM210225en-B Appendix 1: Serial commands85The command can also be divided into two commands, so the computer can beused for other purposes

HMP230 SERIESAppendix 1: Serial commands M210225en-B86ACAL Calibrating the analogue outputsDisconnect the security lock jumper!ACAL <cr>Calibra

HMP230 SERIESM210225en-B Appendix 1: Serial commands87NOTEThe temperature unit in offset correction is always de-grees Centigrade, even if the transmi

HMP230 SERIESAppendix 1: Serial commands M210225en-B88SEND Outputting a reading onceSEND <cr> in STOP stateorSEND aa <cr> in POLL state

HMP230 SERIESM210225en-B Appendix 1: Serial commands89If there are no error messages, only a prompt is displayed:>ERRS <cr>>If errors have

HMP230 SERIESAppendix 1: Serial commands M210225en-B90FORM Setting the output formatFORM <cr>"xxx...xxx"? zzz...zzz <cr>xxx...

HMP230 SERIESM210225en-B Appendix 1: Serial commands91The output is then:47.4<tab> 22.4 <tab> 10.6 <tab> 9.4 <tab> 8.0 <tab

HMP230 SERIESAppendix 1: Serial commands M210225en-B92FDATE Adding date to outputFDATE xxx <cr>xxx = ON or OFFWhen FDATE is activated, the curr

HMP230 SERIESM210225en-B Appendix 1: Serial commands93The processor does not allow the following combinations:• no parity, 7 data bits, 1 stop bit: if