HP21 indicator v. 1: User Guide
Contents
1. gt Devices and Groups gt Search for USB Masters e After finding the HP21 with HW4 expand the device tree to see the HP21 functions Select Probe Adjustment e For further instructions see HW4 manual E M HW4v3 A2 001 O 2009 2010 Rotronic AG E M HP21 V1_21 Rotronic AG E M HP21 V1 _ 21 Bassersdorf Switzerland Document code Unit Page 110f 14 HygroPalm HP21 hand held indicator Instruction Manual User Guide Document Type Document title 5 4 Replacing the battery To replace the battery turn the latching button counter clockwise and pull out the battery holder 5 5 Cleaning or replacing the dust filter Depending on the application the dust filter may require cleaning from time to time Cleaning should be done without removing the filter from the probe Clean the filter with a fine brush If this is not sufficient the filter should be replaced To do this unscrew the filter from the probe Before putting on a new dust filter check the alignment of both sensors with the probe The wires that connect the sensors to the probe are very thin and bend easily If this happens correct the alignment by holding the sensor very gently with a pair of small flat nosed pliers 6 Firmware updates Firmware updates will be available on the ROTRONIC website for downloading Firmware files are given a name that shows both to which device the file applies and the version number of the firmware All firmware files have the extension2. ENTER key to change which parameters are shown on the display o Relative humidity and temperature o Dew frost point and temperature when calculated parameter is enabled 4 5 Changing the temperature unit The temperature unit of the HP21 C or F can be changed from the keypad Menu gt Settings gt Unit Press the MENU key to show the internal menu on the display With the menu item Settings highlighted press the ENTER key With the menu item Unit highlighted press the ENTER key Use the UP or DOWN key to change the temperature unit as desired Press the MENU key twice to exit the menu and return the HP21 to normal operation 2009 2010 Rotronic AG E M HP21 V1_21 E M HP21 V1_21 ias Bassersdorf Switzerland Document code Unit Page 9of 14 HygroPalm HP21 hand held indicator Instruction Manual User Guide Document Type Document title The optional HW4 software can also be used to change the unit system 4 6 Low battery indicator When the battery is down to about 20 of its initial charge Low Battery appears at the bottom of the display 4 7 Practical advice for measuring humidity The most common source of error when measuring relative humidity is a difference between the temperature of the probe and the temperature of the environment At a humidity condition of 50 RH a temperature difference of 1 C 1 8 F typically results in an error of 3 RH on relative humidity When using the HP21 hand held
3. M HP21 V1_21 E M HP21 V1_21 iia Bassersdorf Switzerland Document code Unit Page 4of 14 HygroPalm HP21 hand held indicator Instruction Manual User Guide Document Type Document title 2 5 Service connector The service connector is a UART digital interface Universal Asynchronous Receiver Transmitter with a mini USB type connector This allows connecting the HP21 either to a PC running the ROTRONIC HW4 software or to a probe input of another instrument that is compatible with the HygroClip 2 HC2 probes In both cases a service cable is required See Maintenance for the location of the service connector and for the type of service cable to be used e Connecting the HP21 to a PC is used to configure the HP21 gain access to the HP21 functions such as humidity and temperature adjustment read data from the HP21 on the PC and update the AirChip 3000 firmware e Connecting the HP21 to another instrument is useful only when the other instrument has its own display and keypad and has a more powerful internal menu than the HP21 example HP23 hand held calibrator This allows showing the data measured by the HP21 on the other instrument display and also allows using the other instrument internal menu to do for example a humidity and temperature adjustment of the HP21 3 User configurable settings and functions The HP21 can be used just as any conventional humidity and temperature indicator and most users will never need to u
4. indicator it is good practice to monitor the display for temperature Stability The probe should be given sufficient time to equilibrate with the environment to be measured The larger the initial temperature difference between the probe and the environment to be measured the more time temperature equilibration requires This time can be shortened and errors avoided by using the probe configuration that fits best for your application In extreme situations condensation may occur on the sensors when the probe is colder than the environment As long as the humidity temperature limits of the humidity sensor are not exceeded condensation does not alter the calibration of the sensor However the sensor has to dry out before it can provide a valid measurement Non moving air is an excellent insulator When there is no air movement surprising differences in temperature and humidity can noted over short distances Air movement at the probe generally results in measurements that are both faster and more accurate 5 Maintenance 5 1 Service cable e Cable AC3006 converts UART service connector to USB and is used to connect the HP21 to a USB port of a PC running the ROTRONIC HW4 software Prior to using this cable the ROTRONIC USB driver must be installed on the PC Both the driver and the installation instructions document E M HW4v3 Main are located on the HW4 CD e Asan alternative cable AC2001 is used to connect the HP21 to a probe input of
5. possible from the keypad and requires using either a PC with the HW4 software installed or the HP23 hand held calibrator e When the parameter to be adjusted is stable press the MENU key to show the internal menu on the display Use the DOWN key to select either H Adjust or T Adjust and press the ENTER key Make sure that the text line beginning with RefValue is highlighted and press the ENTER key Use the UP or DOWN key to change the reference value as desired Use the DOWN key to highlight the Adjust text line and press the ENTER key The HP21 confirms the adjustment with the message Adjust OK Press the MENU key twice to exit the menu and return the HP21 to normal operation Notes o The calibration point is automatically deleted from the probe memory after an adjustment o Instructions for using the ROTRONIC calibration devices and humidity standards are provided in document E M CalBasics o Because the HP21 has no real time clock the date of the adjustment is not written to the HP21 If retaining the adjustment date is important use the HW4 software to adjust the HP21 b Procedure for adjusting the HP21 with the ROTRONIC HW4 software e Use cable AC3006 to connect the service connector of the HP21 to the USB port of a PC with the ROTRONIC HW4 software installed Note that the ROTRONIC USB driver must be installed on the PC as explained in the HW4 manual E M HW4v3 Main e Start HW4 on the PC and search for the HP21 HW4 Main Menu Bar
6. the HP23 hand held calibrator For service purposes the HP23 offers essentially the same functionality as the HW4 software 5 2 Location of the service connector mini USB type WARNING the service connector is a UART interface with a mini USB connector type Do not connect the service connector directly to the USB port of a PC or hub The service connector UART interface can be accessed without opening the enclosure after removing the protective red round cover O 2009 2010 Rotronic AG E M HP21 V1_21 E M HP21 V1_21 eee Bassersdorf Switzerland Document code Unit Page 10o0f 14 HygroPalm HP21 hand held indicator Instruction Manual User Guide Document Type Document title 5 3 Periodic calibration check Both the Pt 100 RTD temperature sensor and associated electronics are very stable and should not require any calibration after the initial factory adjustment Long term stability of the ROTRONIC Hygromer humidity sensor is typically better than 1 RH per year For maximum accuracy calibration of the HP21 should be verified every 6 to 12 months Applications where the HP21 is exposed to significant pollution may require more frequent verifications a Procedure for adjusting the HP21 from the keypad The keypad of the HP21 allows a 1 point adjustment of temperature or humidity against a reference A 1 point adjustment has the effect of adding the same offset to all measured values A multi point adjustment is not
7. E M HP21 V1_21 ias Bassersdorf Switzerland Document code Unit HygroPalm HP21 hand held indicator Instruction Manual User Guide Document Type HygroPalm HP21 Hand Held Indicator User Guide Tel 44 0 191 490 1547 THORNE Fax 44 0 191 477 5371 DERRICK UK vebsievnnuneouracnecosk www thorneanderrick co uk O 2009 2010 Rotronic AG E M HP21 V1_21 E M HP21 V1_21 ts Bassersdorf Switzerland Document code Unit Page 2of 14 HygroPalm HP21 hand held indicator Instruction Manual User Guide Document Type Document title Table of contents 1 OV EE VICW wise scee ce A A A a 3 2 General descripto iesea dae etcucensadaycencadaacexsadectebsatesdexsedeuscbenieedeveadestakiinedensdces 3 2 1 POWerSU PM a ee ed e en sateen Le a ed eal o 0 OS 3 2 2 Measure a parameters seriinin a dicos rico desta anales 3 2 3 Calculated parameters incansable nie pill rinitis 3 2 4 Sensor protection US Me e de do ale On Aa O a 3 2 5 SE V IGS COME oiuis 4 3 User configurable settings and FUNCTIONS oocccccnnnnncnccnnnnnoncnnnancnnnnnnnnnonnnnnnnnrrnnnannnrrnnnnnnrrrnnnnnrrrnnannnnnnas 4 3 1 FUNCUONOVCIVISW orilla dicte 4 3 2 Factory detallista ads aa 6 4 e isos seis etn paxsccctece ses a aa e a Aa E 7 4 1 A o REN A Uraeccnmta letehwnetadensnsuseel ts 7 4 2 A SOIC Meat Nets or ARE Core OO ee TO ene ace en eee Ce re eee eee ne ee 7 4 3 A A A 8 4 4 Changing the parameters shown on the display ccccooocccnnccconncnnco
8. HEX Procedure for updating the firmware e Use cable AC3006 to connect the service connector of the HP21 to the USB port of a PC with the ROTRONIC HW4 software installed Note that the ROTRONIC USB driver must be installed on the PC as explained in the HW4 manual E M HW4v3 Main e Copy the firmware update file from the ROTRONIC website to the PC e Start HW4 software on the PC and search for the HP21 HW4 Main Menu Bar gt Devices and Groups gt Search for USB Masters e After finding the HP21 expand the device tree to see the HP21 functions Select Device Manager In the Device Manager menu bar select Tools gt Firmware Update For instructions see document E M HW4v3 F2 004 O 2009 2010 Rotronic AG E M HP21 V1_21 E M HP21 V1_21 iia Bassersdorf Switzerland Document code Unit HygroPalm HP21 hand held indicator Instruction Manual User Guide Document Type Document title Page 120f14 7 Technical data 7 1 Specifications Device type Humidity temperature hand held indicator with integral probe Battery type 9 V alkaline Low battery indication Typical 10 sec 63 of a 35 to 80 RH step change 1m sec air flow at sensor Typical 4 sec 63 of a step change 1m sec air flow at sensor Psychrometric calculations Dew or frost point user configurable setting 100 i Start up time 1 9s typical Data refresh rate 1 7s typical Interface type UART Universal Asynchronous Receiver Tra
9. Rotronic AG E M HP21 V1_21 E M HP21 V1_21 ias Bassersdorf Switzerland Document code Unit HygroPalm HP21 hand held indicator Instruction Manual User Guide Document Type Page 8of14 Document title 4 3 Internal menu Note Unauthorized access to the menu can be prevented by disabling the display menu setting use the HW4 software gt Device Manager gt Display Main Menu Menu tems Selections information Notes E a Temperature dew or frost point Tack tight Key Press On Of Display backlight mode Device Information Ci Version Firmware version TF seriat Nbr Seriatnumber A Ares as ses address SSCS type oe pe PSS name Devicename User define TF sensorTest Humidity sensor status Off Good SQ Tuned Bad HumidtyAdust S crass point acustment only offset Temperature adut C Reame Temperature reference value 401 Cotes frais point adjustment only offset Notes o Record both the recording mode start stop and the log interval cannot be changed from the menu and are as configured with the ROTRONIC HW4 software o SensorTest Off means that the humidity sensor has not been tested due to the configuration settings of the test For a description of the automatic humidity sensor test and drift compensation SQ tuning see documents E T AC3000 DF V1 and E M HW4v3 F2 004 4 4 Changing the parameters shown on the display When the menu is not active press the
10. ated 1 Overview The HP21 is a highly accurate hand held indicator that displays relative humidity temperature and the dew or frost point The HP21 is perfect for spot checking HVAC installations manufacturing and storage areas and generally for all ambient air measurement within the temperature range of 10 to 60 C 14 to 140 F The HP21 operates with a regular 9V alkaline battery Based on the ROTRONIC AirChip 3000 digital technology the HP21 offers the following user functions User configurable settings Calculation of the dew or frost point Humidity temperature calibration and adjustment Simulator mode Automatic humidity sensor test and drift compensation Sensor failure mode Data recording The ability for the user to easily update the AirChip 3000 firmware means that the HP21 can be kept up to date regarding any future functionality improvement 2 General description 2 1 Power supply The HP21 operates with a regular 9V alkaline battery 2 2 Measured parameters The HP21 measures relative humidity with a ROTRONIC Hygromer IN1 capacitive sensor and temperature with a Pt100 RTD 2 3 Calculated parameters Using the ROTRONIC HW4 software the HP21 can be configured by the user to calculate either the dew point or the frost point 2 4 Sensor protection dust filter The HP21 is supplied with a Polyethylene filter to protect the sensors against dust particles and high air velocity 2009 2010 Rotronic AG E
11. ctions regarding the configuration of the HP21 and access to its functions are provided in the following manuals E M HW4v3 Main E M HW4v3 F2 004 E M HW4v3 DR 001 E M HW4v3 A2 001 E M AC3000 CP o The factory default setting for dew frost point calculation is frost point below freezing O 2009 2010 Rotronic AG E M HP21 V1_21 E M HP21 V1_21 ie Bassersdorf Switzerland Document code Unit HygroPalm HP21 hand held indicator Instruction Manual User Guide Document Type Page 7of 14 Document title 4 Operation 4 1 Display The LC display of the HP21 has a backlight which can be set to be on all the time or whenever a key is pressed The backlight can also be disabled The upper line corresponds to relative humidity or dew frost point and the bottom line corresponds to temperature The display can be configured to show a trend indicator on each line A increasing value V decreasing value In the event of an alarm the display shows the symbol to the right of the value For instructions see the following HW4 manual E M HW4v3 F2 004 4 2 Keypad ON OFF Turns the instrument on or off MENU Press this key to activate the Be internal menu Press this key again to exit the menu AN es Be UP DOWN When the menu is active use these keys to navigate the menu make a selection or change a value ENTER When the menu is active press this key to confirm a selection 2009 2010
12. ers from a true data logging function in the sense that the AirChip 3000 does not time stamp the data This data recording function can be used to investigate events such as a sensor malfunction as well as to retrieve data that would otherwise be lost o Start or stop data recording up to 2000 value pairs RH and temperature Starting a recording session erases all previously recorded data The recording mode and log interval can be specified When the device is powered off the recording session is paused but not ended As long as the recording session has not been ended the device automatically resumes recording data when powered up again The recorded data can be downloaded to a PC with the HW4 software time stamped and viewed MEASUREMENT LOOP VALIDATION AirChip 3000 Functions gt Simulator mode Used to make the HP21 generate fixed values for the humidity temperature and calculated parameter Can be configured enabled or disabled DEVICE SAFEGUARDS AirChip 3000 Functions Description gt Device write protection Used to protect the HP21 with a password to prevent unauthorized digital access by a digital user Can be configured enabled or disabled gt Internal menu access from keypad Used to prevent accidental changes to the HP21 settings and temperature humidity adjustment by disabling the MENU key on the keypad Can be enabled or disabled 2009 2010 Rotronic AG E M HP21 V1_21 E M HP21 V1_21 iia Bassersdorf Swi
13. nonnnnnnononcnnnnononcnnnnnnonnnnnnonannnnncnnnns 8 4 5 Changing the temperature UNil ooonnnnccccnncnncccconcnnnccnnncnnnnonnnnnnnnnnnncnnnnonnnnnnnnonnnrnnnnrnnnnnnnnrnnnnnnnnrnannnnnnnnnss 8 4 6 LOW battery Indica Orta illinois 9 4 7 Practical advice for measuring humidity ccccooonccnncccnonnnncnononnoncnnnnncnnnononnnnnonnnnnnnnnonnnnrnnnonnnnrnnnnnannnnnnss 9 5 A A e a a e a aE 9 5 1 DEVICE a II O ed 9 5 2 Location of the service connector mini USB typ6 oooccnncccconccnncccnncnnnnonononononnnnnnnnnononnnnnnononnnnnonnnnennnnss 9 53 Periodic calibrato A a a a a 10 5 4 Replacing the Dates badsceccasgaeee2ed ecunsetd bsisinadeveouaseideelnatoaeadeaee 11 55 Cleaning or replacing the dust Ml o 11 6 Firmware Updates ii A A A a aaa 11 7 TECNICA AA A aca 12 7 1 o aa aa acca sseate hie dedconaseedienase basaandecde dana neonates 12 7 2 Dew DOIN ACCUACY car a att 13 8 IAC COSSONIOS a AA A 14 9 SUPportiRg documents ii da east Seeds 14 10 DOCUMENT east 14 O 2009 2010 Rotronic AG E M HP21 V1_21 E M HP21 V1_21 ts Bassersdorf Switzerland Document code Unit Page 30f14 HygroPalm HP21 hand held indicator Instruction Manual User Guide Document Type Document title Applicability This manual is valid for the HP21 with firmware version 1 x where 1 x can be 1 0 1 1 etc Changes to the last digit of the version number reflect minor firmware changes that do not affect the manner in which the instrument should be oper
14. nsmitter Maximum service cable length 5 m 16 4 ft 3 270 x 70 x 30 mm 10 63 x 2 76 x 1 17 O 2009 2010 Rotronic AG E M HP21 V1_21 E M HP21 V1_21 ias Bassersdorf Switzerland Document code Unit HygroPalm HP21 hand held indicator Instruction Manual User Guide Document Type Page 130f14 Document title Conformitywithstendards HP CE EMC immunit EMC Directive 2004 108 EG EN 61000 6 1 2001 EN 61000 6 2 2005 y EN 61000 6 3 2005 EN 61000 6 4 2001 A11 Solder type Lead free RoHS directive FDA GAMP directives compatible Environmental limits CA Storage and transit 20 70 C 0 100 RH non condensing ieee Same as electronics 7 2 Dew point accuracy The HP21 can be configured to calculate either the dew point or frost point based on the measurement of relative humidity and temperature The accuracy of this conversion varies depending on the humidity and temperature conditions as shown in the graph below DPIFP Accucary ee Te pe A SEE A NEEE E TEE A E A E Sensor limit_ p EA eeen en nle a A i m a a a e DP FP C 50 40 30 20 10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 Temperature C Example at a temperature of 20 C a dew point value of 37 C is measured with an accuracy of 1 0 C or better O 2009 2010 Rotronic AG E M HP21 V1_21 E M HP21 V1_21 da Bassersdorf Switzerland Document code Unit HygroPalm HP21 hand held indicator In
15. se the HP21 configurable settings and functions Making use of the HP21 configurable settings and functions is entirely up to the user and the appropriate settings depend on the user application We have provided below a short description of the HP21 functions and also indicated the factory default settings 3 1 Function overview MEASUREMENT ACCURACY AND RELIABILITY AirChip 3000 Functions gt Humidity temperature adjustment 1 point or multi point humidity calibration or adjustment 1 point or 2 point temperature calibration or adjustment Generate a time stamp for calibrations and adjustments Retain and view last adjustment date and adjustment values Generate calibration and adjustment protocols gt Automatic humidity sensor test Tests the humidity sensor for drift caused by contaminants and and optional drift compensation can be used to automatically apply a correction The test is automatically carried out at regular intervals of time Can be configured enabled or disabled The humidity sensor status can be verified either with the HW4 software or with the instrument display and is shown as Good SQ tuned corrected for drift or Bad defective 2009 2010 Rotronic AG E M HP21 V1_21 Rotronic AG E M HP21 V1 _ 21 Bassersdorf Switzerland Document code Unit HygroPalm HP21 hand held indicator Instruction Manual User Guide Document Type Page 5of 14 Document title gt Data recording The data recording function diff
16. struction Manual User Guide Document Type Page 140f14 Document title 8 Accessories For accessories and parts such as the HW4 configuration software service cables calibration accessories and spare dust filters please see document E M HC2 accessories 9 Supporting documents Note All document file names have an extension corresponding to the document release number This extension is not shown in the above table 10 Document releases Doc Release Date Notes o Apr 3 2009 Original release Jun 20 2010 Updated document to HW4 software v 3 Tel 44 0 191 490 1547 THORNE amp Fax 44 0 191 477 5371 DERRICK UK webste wwwneattracngcuk www thorneanderrick co uk 2009 2010 Rotronic AG E M HP21 V1_21
17. tzerland Document code Unit HygroPalm HP21 hand held indicator Instruction Manual User Guide Document Type Page 6of14 Document title 3 2 Factory default settings Notes o Configuration of the HP21 by the user and access to its functions requires a PC with the ROTRONIC HW4 software version 2 1 1 or higher installed Service cable AC3006 is used to connect the HP21 service connector to a USB port of the PC o Settings and functions that can also be either partially or fully accessed from the keypad are marked with the letter K see also Operation gt Internal Menu Unitsystem K Meris except USA English Psychrometo cacuia on Dem fte Display resolution eoma SSCSC S S S Display backlight K onkeyeess SCSC S lt S S S Displayed parameters K RH and temperature S Trend indicator display Enwi Communication protocol roas S Rsassaress o Devicename TN Functions 7 TN Humidity temperature adjustment KO Device wite protecton osma SSSC S S S S Menu access from keypad Enw Tmthumidiy output to 100 RH Enabled Outotimit value digital display alarm Disabled Data recording TK Enabled oop mode 10 min inteval Automatic humidity sensortest able Humidity sensor drt compensation Disabled Simulator mode ossa o Fora detailed description of all AirChip 3000 HP21 main functions see document E T AC3000 DF V1 o Instru
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