Vaisala HMP228 User Manual

HMP228Moisture and TemperatureTransmitter for OilUSER'S GUIDEM210282en-AMay 2002

HMP228Operating Manual M210282en-A42.2 MountingIn Figures 2.2.1 and 2.2.2 you can see the dimensions of the HMP228transmitter and probe:

HMP228Appendix 5: Digital current loop module M210282en-A94Dual loop wiring• Set the address of the transmitter, it can be any number between 1 and99.

HMP228M210282en-A Appendix 5: Digital current loop module954. CHECKING THE SERIAL PORT NETWORK OPERATIONNormally, measurement readings are asked when

HMP228Appendix 5: Digital current loop module M210282en-A96POLL modeIf a transmitter has been set to POLL mode, it will respond only to commandswhich

HMP228M210282en-A Appendix 5: Digital current loop module975. SPECIFICATIONSGalvanic isolation 1500 VAC/DC max. (1 min)Loop supply voltage 40 V max.Lo

HMP228Appendix 6: Error messages M210282en-A98APPENDIX 6: ERROR MESSAGESThe HMP228 transmitters go through a self-diagnostics procedure when thepower

HMP228M210282en-A Appendix 6: Error messages99Errors during operationTwo types of errors are possible during operation of the transmitters. The firstt

HMP228Appendix 6: Error messages M210282en-A100The LEDs display these error types as follows:¡¡¤¤ no frequency at all¡¡¤¡ a frequency missing from the

HMP228M210282en-A Appendix 7: Alarm output unit101ALARM OUTPUT UNITThe alarm output unit consists of two alarm relays and two opto-isolatedoutputs (se

HMP228Appendix 7: Alarm output unit M210282en-A102 -+-+-+signal cable gland X3X16ribbon cable M3 screws (4 pcs) for mounting(prefi

HMP228M210282en-A Appendix 7: Alarm output unit103- the third parameter (in this example HI ON) starts blinking. Thisparameter determines whether the

HMP228M210282en-A Operating Manual5>10.5mmfitting body hex = 24mmtapered threadR1/2 ISO 7/1ø19mm drilling sealing with:1. LOCTITE® No 54

HMP228Appendix 7: Alarm output unit M210282en-A104When giving this command, first enter the channel number i.e. the number ofthe alarm output you wish

HMP228M210282en-A Appendix 8: Connectors105APPENDIX 8: CONNECTORS1.1 Connector options...

HMP228Appendix 8: Connectors M210282en-A1061.1 Connector optionsThe HMP228 moisture transmitter can be ordered with various connectorconfigurations me

HMP228M210282en-A Appendix 8: Connectors1071.3 Serial connectionsAlso an RS232C serial bus can be connected to the connector; in this case, theconnect

HMP228Appendix 8:Connectors M210282en-A1081.4 Instructions for connecting and mounting the counter piecesThe counter piece has to be grounded as shown

APPENDIX 9

HMP228Operating Manual M210282en-A62.2.3 Installing the probe through the ball valve assemblyIt is recommended that the sensor head is installed in th

HMP228 Operating Ma

HMP228Operating Manual8• STEP 2: open the ball valve assembly R1/2 ISO 7/153.6ø5.5adjustment range 120mm148ø14(40)>ø14ø1

HMP228M210282en-A Operating Manual9• STEP 3: push the probe head through the ball valve assembly into theprocess. Note that the sensor head must be p

HMP228Operating Manual M210282en-A10when the probe is pulledout for maintenance, capthe hole with a capped nut;this way, the process canbe open althou

HMP228M210282en-A Operating Manual11Power supply 24 VDC24 VAC (see Chapter 2.3.2)with power supply module 115/230 VACOutput signals 0...20 mA4...20 mA

HMP228Operating Manual M210282en-A122.3.3 GroundingA single electrical cable with a screen and three to ten wires is recommendedfor power and analogue

HMP228M210282en-A Operating Manual13• connect the wires into the screw terminals and fasten a cable tiearound the wiresUse connectors instead of tradi

iiPUBLISHED BYVaisala Oyj Phone : (+358 9) 894 91P.O. Box 26 Fax: (+358 9) 8949 2227FIN-00421 HelsinkiFinlandVisit our Internet page

HMP228Operating Manual M210282en-A143. COMMISSIONINGWhen the HMP228 transmitter leaves the factory, its measurement ranges andoutput signals have alre

HMP228M210282en-A Operating Manual15makes it impossible to change the transmitter settings by mistake. The jumpershould be removed only for changing t

HMP228Operating Manual M210282en-A163.2 Using the RS 232C serial busRx GND TxRxGND TxNc24VSensor connectionsCurrent loop orRS485 moduleCh1Ch2

HMP228M210282en-A Operating Manual17NOTEWhen the serial bus settings are changed, the transmit-ter has to be reset before the new settings become ef-f

HMP228Operating Manual M210282en-A183.3 Using LED commandsNOTEIf the transmitter has a display/keypad cover, the LEDcommands cannot be used.LED comman

HMP228M210282en-A Operating Manual19with button s and the second line with button t; all selections are storedwith ENTER. The selected quantities appe

HMP228Operating Manual M210282en-A204. MAINTENANCE4.1 Self-diagnosticsThe HMP228 transmitter goes through a self-diagnostics procedure when thepower i

HMP228M210282en-A Operating Manual214.3 Moisture calibrationThe HMP228 transmitter has been fully calibrated at the factory so thereshould be no immed

HMP228Operating Manual M210282en-A224.3.1 Two point calibration procedureA two point calibration should be performed in stable conditions usingsaturat

HMP228M210282en-A Operating Manual234.3.1.3 Using LED commands• Leave the calibrator and the transmitter for at least 4 hours in thesame space so that

HMP228M210282en-A Operating ManualiiiContents1. PRODUCT DESCRIPTION...

HMP228Operating Manual M210282en-A24• Press any key and press <cr> when the transmitter requests the secondpoint value.RH : 75.5 Ref2 ? yy.

HMP228M210282en-A Operating Manual254.4.1 Calibration procedure after sensor changeHumidity calibration should be performed in stable conditions using

HMP228Operating Manual M210282en-A26• Select Cali in the main menu and then RH cal; select Sensorchanged. Change the first point reading with the a

HMP228M210282en-A Operating Manual274.4.5 Humidity calibration tableTemperature °C 15 20 25 30 35°F 59 68 77 86 95LiCl %RH * 11.3 11.3 11.3 11.34...20

HMP228Operating Manual M210282en-A28T : 0.90 Ref1 ? c <cr>T : 0.55 Ref1 ? c <cr>T : 0.55 Ref1 ? 0.0 <cr>Press any key when rea

HMP228M210282en-A Operating Manual29• If you want to see how the sensor stabilizes to the referencetemperature, enter c <cr> instead of the firs

HMP228Operating Manual M210282en-A30• Check that the reading corresponds with the reading of the referenceinstrument. If not, adjust the second point.

HMP228M210282en-A Operating Manual31T = D0 +R x {D1 + R x [D2 + R x (D3 + R x D4)]}whereD0 = -243.5673014D1 = 2.278542701D2 = 0.002050681D3 = -6.15025

HMP228Operating Manual M210282en-A3224VSensor connectionsCurrent loop orRS485 moduleCh1Ch2+-ncTxGNDRx--++X15Ch1Ch2Ch1Ch2Ch1Ch2Ch1Ch2Ch1Ch2Ch1Ch2Ch1Ch2

HMP228M210282en-A Operating Manual334.7.1.2 Using display/keypad commandsDisconnect the security lock jumper!• Select Mode in the main menu and Anal

HMP228Operating Manual M210282en-Aiv4.6.1.2 Using display/keypad commands...284.6.1.3 Using

HMP228Operating Manual M210282en-A344.7.2 Selecting and scaling the analogue output quantitiesDisconnect the security lock jumper!4.7.2.1 Using seria

HMP228M210282en-A Operating Manual35• If the settings need to be changed, press CL:− the quantity (aw, T) starts flashing; it can be changed with thea

HMP228Operating Manual M210282en-A3624VSensor connectionsCurrent loop orRS485 moduleCh1Ch2+-ncTxGNDRx--++X15Ch1Ch2++--X2Figure 4.8.1.1 Location of the

HMP228M210282en-A Operating Manual374.8.1.1 Using serial commandsACAL <cr>The outputs on channels 1 and 2 are measured and the measured values

HMP228Operating Manual M210282en-A384.8.1.3 Using LED commandsIf both the analogue outputs and humidity/temperature channels are calibrated,the analog

HMP228M210282en-A Operating Manual3924VSensor connectionsCurrent loop orRS485 moduleCh1Ch2+-ncTxGNDRx--++X16Figure 4.9.2 Forcing the serial port setti

HMP228Operating Manual M210282en-A405. TECHNICAL DATA5.1 Water activityMeasuring range of water activity 0...1Accuracy (including nonlinearity and rep

HMP228M210282en-A Operating Manual415.5 ElectronicsUser interface 3 keys and 4 LEDs inside the housing or local display keypadDisplay 2 x 16 character

HMP228Operating Manual M210282en-A42Bushing for 7...10 mm diameter cable (8 x 0.5 mm2 shielded cable)Sensor protection Stainless steel filter(part no.

HMP228M210282en-A Operating Manual435.7 Electromagnetic compatibilityThe emission and immunity tests have been performed according tothestandard EN613

HMP228M210282en-A Operating ManualvThis page intentionally left blank.

HMP228Operating Manual M210282en-A446. OPTIONSPower supply moduleOperating voltage 115 VAC (93...127 V)230 VAC (187...253 V)Serial interface RS485/422

HMP228 TransmittersM210282en-A Appendix 1: Serial commands45APPENDIX 1: SERIAL COMMANDS1. ANALOGUE OUTPUT COMMANDS...

HMP228 TransmittersAppendix 1: Serial commands M210282en-A46ANALOGUE OUTPUT COMMANDSAMODE Setting the analogue outputsDisconnect the security lock ju

HMP228 TransmittersM210282en-A Appendix 1: Serial commands47For example, water activity is selected to be output on channel 1 and tem-perature on chan

HMP228 TransmittersAppendix 1: Serial commands M210282en-A48The output scales can also be given directly with the ASCL command.ASCL aaa.a bbb.b ccc.

HMP228 TransmittersM210282en-A Appendix 1: Serial commands49CALIBRATION COMMANDSCRH Relative humidity calibrationDisconnect the security lock jumper!C

HMP228 TransmittersAppendix 1: Serial commands M210282en-A50The command can also be divided into two commands, so the computer can beused for other p

HMP228 TransmittersM210282en-A Appendix 1: Serial commands51ACAL Calibrating the analogue outputsDisconnect the security lock jumper!ACAL <cr>C

HMP228 TransmittersAppendix 1: Serial commands M210282en-A52NOTEThe temperature unit in offset correction is always de-grees Centigrade, even if the

HMP228 TransmittersM210282en-A Appendix 1: Serial commands53SEND Outputting a reading onceSEND <cr> in STOP stateorSEND aa <cr> in POLL

HMP228 TransmittersAppendix 1: Serial commands M210282en-A54If errors have occurred, the transmitter outputs the error code (see Appendix 5for error

HMP228 TransmittersM210282en-A Appendix 1: Serial commands55FORM Setting the output formatFORM <cr>"xxx...xxx"? zzz...zzz <cr>

HMP228 TransmittersAppendix 1: Serial commands M210282en-A56FTIME Adding time to outputFTIME xxx <cr>xxx = ON or OFFWhen FTIME is activated, t

HMP228 TransmittersM210282en-A Appendix 1: Serial commands57Activating the date output>fdate onForm. date : ON>r1995-03-10 aw= 0.206 T= 26.0

HMP228 TransmittersAppendix 1: Serial commands M210282en-A58NOTEThe serial bus settings become effective only after reset.When the half-duplex mode i

HMP228 TransmittersM210282en-A Appendix 1: Serial commands59When asking the current address, no address number is given:>ADDR <cr>Address : 2

HMP228 TransmittersAppendix 1: Serial commands M210282en-A60OPEN & CLOSEOPEN nn <cr>nn = address of the transmitter (0...99)CLOSE <cr&g

HMP228 TransmittersM210282en-A Appendix 1: Serial commands61OTHERSITEST Testing the analogue outputsITEST <cr>orITEST a b <cr>a = current

HMP228 TransmittersAppendix 1: Serial commands M210282en-A62MTIM Setting the measurement integration timeMTIM nnn <cr>nnn = number of cycles me

HMP228 TransmittersM210282en-A Appendix 1: Serial commands63XPRES Setting the pressure for mixing ratio calculations tempo-rarilyXPRES pppp.pp <cr&

HMP228M210282en-A Operating Manual11. PRODUCT DESCRIPTION1.1 General characteristicsThe HMP228 transmitter is a microprocessor based instrument for th

HMP228 TransmittersAppendix 1: Serial commands M210282en-A64TIME Setting the timeTIME <cr>For example, to enter a new time:>TIME <cr>C

HMP228 TransmittersM210282en-A Appendix 1: Serial commands65Command ?? outputs the same information as command ? but it works alsowhen the transmitter

HMP228Appendix 2: Display commands M210282en-A66APPENDIX 2: DISPLAY COMMANDS1. DISPLAY COMMANDS ...

HMP228M210282en-A Appendix 2: Display commands671. DISPLAY COMMANDSThe HMP228 transmitter uses a microprocessor; therefore its configurationcan be set

HMP228Appendix 2: Display commands M210282en-A68Selecting parity:Selecting data bits:Selecting stop bits:Full duplex/half duplex:The processor does no

HMP228M210282en-A Appendix 2: Display commands69• Pressing ENT returns the programme to the main menu.• Pressing CL deletes the old address; enter the

HMP228Appendix 2: Display commands M210282en-A701.1.2.1 Setting the serial interface operation mode• Select Mode in the main menu; the following is di

HMP228M210282en-A Appendix 2: Display commands711.1.3 Others1.1.3.1 Setting the measurement integration timeBy lengthening the measurement integration

HMP228Appendix 2: Display commands M210282en-A721.1.3.3 Setting the date• Select More in the main menu; select Date in the More menu:• If the date is

HMP228M210282en-A Appendix 3: Power supply module73APPENDIX 3: POWER SUPPLY MODULE1. INSTALLING THE POWER SUPPLY MODULE...

HMP228Operating Manual M210282en-A2ppm) is that the saturation point remains stable regardless of the oil type or theaging of oil, additives used etc.

HMP228Appendix 3: Power supply module M210282en-A742. INSTALLING THE POWER SUPPLY MODULEThe mains power connection may be connected to the power suppl

HMP228M210282en-A Appendix 3: Power supply module75Peel the correct power supply voltage from the sticker enclosed in the powersupply module package a

HMP228Appendix 3: Power supply module M210282en-A763. TECHNICAL SPECIFICATIONSOperating voltage 115 VAC (93...127 V)230 VAC (187...253 V)Connectionsin

HMP228M210282en-A Appendix 4: RS 485/422 serial port module77APPENDIX 4: INSTALLING AND USING THE RS 485/422 SERIALPORT MODULE1. INSTALLATION...

HMP228Appendix 4: RS 485/422 serial port module M210282en-A781. INSTALLATIONSwitch the transmitter off.Resistors R2, R3 and R4 between connectors X4 a

HMP228M210282en-A Appendix 4: RS 485/422 serial port module792. OPERATIONThe HMP228 transmitters can either be given an address or operated withoutan

HMP228Appendix 4: RS 485/422 serial port module M210282en-A80The RS 485/422 module has separate lines for transmitting and receiving, butthey can be c

HMP228M210282en-A Appendix 4: RS 485/422 serial port module813. NETWORK CONFIGURATIONSingle loop operationBi-directional data on one pair is one of th

HMP228Appendix 4: RS 485/422 serial port module M210282en-A82• Set the address of the transmitter; it can be any number between 1 and99. In this examp

HMP228M210282en-A Appendix 4: RS 485/422 serial port module83Dual loop operationThe following procedure must be repeated with all transmitters.• Open

HMP228M210282en-A Operating Manual32. INSTALLATION2.1 Selecting the place of installation for the probe and the transmitterSelect a place which gives

HMP228Appendix 4: RS 485/422 serial port module M210282en-A84NOTE 1The SMODE command must be given last.NOTE 2The transmitter outputs no prompt (>)

HMP228M210282en-A Appendix 4: RS 485/422 serial port module854. CHECKING THE SERIAL PORT NETWORK OPERATIONNormally measurement readings are asked when

HMP228Appendix 4: RS 485/422 serial port module M210282en-A86POLL modeIf a transmitter has been set to POLL mode, it will respond only to commandswhic

HMP228M210282en-A Appendix 4: RS 485/422 serial port module875. SPECIFICATIONSConnections Berg socketson the main board screw terminals 0.5 mm² wires,

HMP228Appendix 5: Digital current loop module M210282en-A88APPENDIX 5: INSTALLING AND USING THE DIGITAL CURRENTLOOP MODULE1. INSTALLATION ...

HMP228M210282en-A Appendix 5: Digital current loop module891. INSTALLATIONSwitch the transmitter off.Resistors R2, R3 and R4 between connectors X4 and

HMP228Appendix 5: Digital current loop module M210282en-A902. OPERATIONThe HMP228 transmitters can either be given an address or operated withoutan ad

HMP228M210282en-A Appendix 5: Digital current loop module91The digital current loop module has separate lines for transmitting and receiv-ing. Both si

HMP228Appendix 5: Digital current loop module M210282en-A923. NETWORK CONFIGURATIONSingle loop operationBi-directional data on one pair and galvanic i

HMP228M210282en-A Appendix 5: Digital current loop module93• Set the transmitter in POLL mode:>smode pollSerial mode : POLLNOTE 1The SMODE comman