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Hanna Instruments Hannah Instruments digital transmitter HI 504910 User's Manual

1. MVR AER commands 30 ms 19200 or 9600 bit s 40 ms 4800 bit s 60 ms 1200 bit s for the complete answer from STX to ETX 2 answer to other commands 2s for the first character of the answer The minimum delay between the last received and the first sent character is 15 ms to allow the master to set itself into receiving mode Here are descriptions of the answers format for setup item request see above The NNMDR request produces the following answer NN lt STX gt FP5049 1 OW ABCD lt ETX gt where WV is the firmware version e g 10 for 1 0 and ABCD is a special code used by HI 92500 The NNPHR NNMVR NNTMR requests produce the fol lowing answer NN lt STX gt lt ASCII string for a float gt N lt ETX gt The answer to the NNSTS command is NN lt STX gt C C C C lt ETX gt where C C are the ASCII representation of byte B described below e g B OxF3 0 F C 3 C C are the ASCII representation of byte B described below e g B Ox1D 0 C 1 C D The meaning of B and B is B bitO green LED 1 ON 0 OFF B bit 1 2 red LED bit O and bit 1 O LED is OFF bit2 1 and bit 1 O LED is fixed ON bit 2 1 and bit 1 1 LED blinks B bit3 freeforfuture use and set to 0 B bit4 freeforfuture use and set to 0 B bit5 gt free forfuture use and set to 0 B bit freeforfuture use and set to 0 B bit7 freeforfuture
2. Available with GP sensor type only H Sensor type pH electrodes 1 LT 10 to 80 C 23 to 156 F 0 to 12 pH 2 GP General Purpose 3 HT 0 to 100 C 32 to 212 F 0 to 14 pH 4 HF Fluoride resistant Sensor type ORP electrodes 1 Platinum 2 Gold wire direct connection BNC Pt100 temp sensor wire direct Pt100 temp sensor BNC Pt1000 temp sensor wire direct Pt1000 temp sensor BNC connector amplified BNC Pt100 sensor amplified Cable length 05 10 15 m for not amplified electrodes 15 25 50 75 m for amplified electrodes Fluoride resistant glass sensor F lt 2g L temperature lt 60 C pH gt 2 Not for ORP electrodes 64 CE DECLARATION OF CONFORMITY instruments CE DECLARATION OF CONFORMITY We Hanna Instruments Italia Srl via E Fermi 10 35030 Sarmeola di Rubano PD ITALY herewith certify that the Digital Transmitter HI 504910 has been tested and found to be in compliance with EMC Directive 89 336 EEC and Low Voltage Directive 73 23 EEC according to the following applicable normatives EN 50082 1 Electromagnetic Compatibility Generic Immunity Standard IEC 61000 4 2 Electrostatic Discharge IEC 61000 4 3 RF Radiated IEC 61000 4 4 Fast Transient EN 50081 1 Electromagnetic Compatibility Generic Emission Standard E
3. DISPLAY CAL DATA If the meter has never been calibrated oran EEPROM reset has occurred no calibration data is shown when CAL DATA is pressed The no CAL mes sage will blink for a few seconds then the meter skips back to the previous mode If the meter is configured to measure pH once entered the last calibration data the following messages could scroll twice on the primary LCD before showing the calibration date Old probe Dead probe Otherwise the last calibration date will appear on the primary LCD displayed as DD MM formot while the second ary display will show the last two digit of the year Pressing the 0 key the meter will cycle through the following steps in reverse order i e beginning from last buffer Note At any time pressing the DISPLAY key or ALT SETUP keys the meter will return to the regular operating display e Press the 0 or D key to view the time of last calibration The second ary display will show HOU to indicate hour and minute while the primary LCD will show the time as HH mm format Press the 0 or 1 key again to view the offset in mV at the time of last calibration The secondary display will show OFF to indicate offset Press the 0 or 1 key again to view the slope in mV pH at the time of last calibration The secondary dis play will show SLO to indicate slope Press the 0 or 1 key again to view the first memorized buffer at the time of
4. ENTERING SETUP ITEMS After confirmation of the password the primary LCD will show the name of the first setup group see table while the secondary LCD will display the setup code of the first item of the group e By pressing the 1 key itis possible to cycle through the setup groups the secondary LCD will always show the code of the first item of the group gt YCALT Once a group is selected it is pos sible to choose an item manually Pressing the 0 key the first digit of the setup code will start blinking Now it is possible to change its value by pressing the 0 or O key e Pressing the 0 key again the first digit will be fixed while the second digit starts blinking and its value can be changed as described above By pressing the key again all the digits will be fixed f CFM key is pressed the selected item is confirmed the secondary LCD will show the setup item code while the primary LCD will display the current item value If a fixed set of values is available for the selected item use the 1 orl key to switch between them Otherwise if a numeric value has to be entered for the item use the key to change the value of the blink ing digit and the key to cycle through the number s digits 23 Code Valid Values Default Present Va for ORP ME GENERAL GEnE 6 00 pH ORP input see no
5. buffer values is possible by entering the desired calibration value This is the actual pH value at the current calibration temperature e Enter the pH calibration mode no matter if the standard or NIST buffer set is selected then press ALT SETUP while the second ary LCD is displaying the first buffer value pH 7 01 or pH 6 86 The pH calibration value will switch to 7 00 the first digit starts blinking and it is possible to change its value simply using the 0 or D key Once selected the first digit value press the key the first digit will be fixed and the second one will start blinking Pressing of the 0 key repeatedly will result on circularly moving on the secondary LCD When the desired calibration value is reached must be within 0 00 to 16 00 pH press the CFM key to confirm and the calibration will proceed as described above If the selected value is outside boundaries the confirma tion is not accepted and the first digit keeps blinking waiting for confirmation of a valid value 17 Note Note ORP CALIBRATION If ALT SETUP are pressed instead of CFM the calibration value selection is aborted and the meter reverts back to a two point calibration Whenever a pH or ORP calibration is performed by means of HI 504920 the HI 504920 date and time are automati cally set in HI 504910 Check that the code 90 has been entered in Setup mode To perform ORP calibration it is necessary to connect an H
6. 701 918 1001 For instance if the buffer temperature is 25 C the display should show pH 4 01 7 01 or 10 01 at pH 4 7 or 10 buffers respectively At 20 C the display should show pH 4 00 7 03 or 10 06 The meter reading at 50 C will then be 4 06 6 98 or 9 82 ELECTRODE CONDITIONING AND MAINTENANCE PREPARATION TEST MEASUREMENT STORAGE Note Remove the electrode protective cap DO NOT BE ALARMED IF ANY SALT DEPOSITS ARE PRESENT This is normal with electrodes and they will disappear when rinsed with water During transport tiny bubbles of air may have formed inside the glass bulb The electrode cannot function properly under these conditions These bubbles can be removed by shaking down the electrode as you would do with a glass thermom eter If the bulb and or junction are dry soak the electrode in HI 70300 Storage Solution for at least one hour If the electrode does not respond to pH changes the battery may be run down and should be replaced Rinse the electrode tip with distilled water Immerse the tip bottom 4 cm 17 in the sample and stir gently for approximately 30 seconds For a faster response and to avoid cross contamination of the samples rinse the electrode tip with the solution to be tested before taking your measurements To minimize clogging and assure a quick response time the glass bulb and the junction should be kept moi
7. DATA are pressed before CFM calibration is aborted without changing the previous calibra tion data Note Note e If an offset calibration has been made the instrument will turn to slope calibration as indicated by the SLO message on the second ary display The slope value is shown on the primary LCD and the first digit is blinking to permit modifications Press the key to modify the value or 0 key to move to the next digit Once selected the desired value press CFM to confirm After confirmation the instrument will turn back to normal mode If the slope is invalid the WRONG indicator will blink on the LCD Press DISPLAY or ALT CAL DATA to exit calibration The slope will be set to the default value 57 5 mV pH Atter direct selection of offset and slope calibration data can be viewed by pressing ALT CAL DATA while in normal mode but no pH buffer values will be displayed during the data scrolling on the LCD Note Whenever a pH or ORP calibration is performed by means of HI 504920 the HI 504920 date and time are automati cally set in HI 504910 35 EVENT LOG FILE SCROLLING 36 The event log file is composed of maximum 100 recorded events which include errors calibration events type of cali bration date time and configuration changes To enter the event log file scrolling press the DISPLAY key while in normal measurement mode Event scrolling does not a
8. DC connect a 2 wire power cable with a minimum cross area of 0 75 to the terminals 1 and 2 If using a DC supply connect the positive wire to the termi nal 1 RS485 serial interface for communicating with HI 504 controller or PC modem GSM module connect a twisted shielded cable to terminals 3 B and 4 A The serial interface of the HI 504910 Digital Transmitter is optoisolated Do not connect the serial cable shield to the transmitter 100 1000 terminals use these contacts to connect the Pt100 Pt1000 temperature sensor for automatic tem perature compensation of pH measurement In the case of shielded wire con o nect the shield to pin 5 CT In the case of a 2 wire sensor con nect PtlOO Pt1000 to pins 7 28 28 5678 and 8 and short pins 6 and 7 with a jumper wire If the Pt100 Pt1000 has more than 2 wires connect the two wires of one end to pins 6 and 7 pin 6 is an auxiliary input to compensate for the cable resistance and one wire from the other end to pin 8 Leave the fourth wire unconnected if present The instrument automatically recognizes the sensor type Pt100 or Pt 000 DIMENSIONS 181 mm 7 1 pH or ORP electrode connect the shield of the electrode coaxial cable electrode reference to the terminal 10 and the electrode coaxial s s Lj cable core to terminal 11 9 10 11 To benefit from the dif
9. HI 7004M or HI 70041 pH 4 01 Buffer Solution 230 or 500 ml bottle threads on both ends for in line and immersion installation HI 7006M or HI 70061 pH 6 86 Buffer Solution 230 or 500 ml bottle 5 m 16 57 cable HI 7007M or HI 70071 pH 7 01 Buffer Solution 230 or 500 ml bottle HI 7621 Class 1000 probe with external PG13 5 thread and 5 m HI 7009M or HI 7009L pH 9 18 Buffer Solution 230 or 500 ml bottle I S able HI 7010M orHI 7010L pH 10 01 Buffer Solution 230 or 500 ml bottle 1 set of O rings for HI 60542 electrode holder ORP SOLUTIONS HI 60545 0 1 set of O rings for HI 60545 electrode holder HI 7020M or HI 7020L Test Solution 200 275 mV 230 or 500 ml bottle HI 60501 0 1 set of O rings for HI 60501 electrode holder HI 7091M or HI 7091L Pretreatment Reducing Solution 230 or 500 ml bottle HI 605011 PVC mounting flange for HI 60501 electrode holder HI 7092M or HI 70921 Pretreatment Oxidizing Solution 230 or 500 ml bottle HI 8427 pH ORP Electrode Simulator ELECTRODE STORAGE SOLUTIONS HI 931001 pH ORP Electrode Simulator with LCD Display HI 70300M or HI 70300L Storage Solution 230 or 500 ml bottle HI 931002 4 20 mA Simulator HI 7082 3 5M KCI Electrolyte 4x50 ml HI 8614 pH Transmitter HI 8614L pH Transmitter with LCD ELECTRODE CLEANING SOLUTIONS HI 8615 ORP Transmitter HI 7061M or HI 7061L General Cleaning Solution 230 or 500 ml bottle HI 8615L ORP Transmitter with LCD HI 7073M orHI 70731 Protein Cleaning Solution 230 or 500 m
10. PC through the HI 92500 application software 37 FAULT CONDITIONS 38 The below fault conditions may be detected by the software EEPROM data error serial communication internal bus failure dead loop EEPROM data error can be detected through EEPROM test procedure at start up or when explicitly requested using setup menu or during normal operational mode if a checksum control fails When an EEPROM error is detected during normal mode a fault alarm is generated To close an error an EEPROM test see Selftest procedures section or reset is required As soon as an EEPROM error is detected the scrolling mes sage EEPROM reset needed Press up button to reset stored data or right button to ignore will appear on the primary LCD Ifthe O key is pressed the instrument restarts operation but the device will be in Hold mode in any case i e no mea surement will be acquired Ifthe key is pressed all the data stored in the EEPROM are erased and the default values loaded After that the device must be completely recalibrated An internal bus error is detected when internal transmission is not acknowledged or a bus fault occurs for more than a certain number of unsuccessful transmission attempts due for example to a damage occurred to one of the ICs con nected to the internal bus After that the controller displays a sliding message Serial bus error If the error is due to impossible communication all the
11. at tech hannainst com This instrument is in compliance with the directives The HI 504910 meter is warranted for two years sen sors electrodes and probes for six months against defects in workmanship and materials when used for their intended pur pose and maintained according to instructions This warranty is limited to repair or replacement free of charge Damage due to accidents misuse tampering or lack of pre scribed maintenance are not covered If service is required contact the dealer trom whom you pur chased the instrument If under warranty report the model number date of purchase serial number and the nature of the failure If the repair is not covered by the warranty you will be notified of the charges incurred If the instrument is to be returned to Hanna Instruments first obtain a Returned Goods Authorization number from the Customer Service de partment and then send it with shipping costs prepaid When shipping any instrument make sure it is properly packaged for complete protection 2003 Hanna Instruments All rights are reserved Reproduction in whole or in part is prohibited without the written consent of the copyright owner Hanna Instruments reserves the right to modify the design construction and appearance of its products without advance notice PRELIMINARY EXAMINATION Note Remove the instrument from the packing material and exam ine it carefully to make sure th
12. in strument tasks are stopped the red LED blinks and the Serial bus error slides forever repair can not be postponed A software watchdog is provided in order to detect dead loop conditions or other causes that make the software stuck If it happens a software reset is generated after a time out of 1 second RS485 COMMUNICATION SPECIFICATIONS The digital transmission of measurements error and status information is implemented through an RS485 link The transmission can be directed to an HI 504 orto a com puter workstation which can be connected locally or remotely through a modem connection RS485 standard is a digital transmission method that allows long lines connections Its current loop system makes this standard suitable for data transmission in noisy environments Data transmission from the instrument to the PC is possible with the HI 92500 Windows compatible application software of fered by Hanna Instruments and an RS232 to RS485 adapter with Send Data Control connected to the serial port of your PC The user friendly HI 92500 offers a variety of features such as logging selected variables or plotting the recorded data It also has an on line help feature to support you throughout the op eration The readings logged into the HI 504910 internal memory can be downloaded through HI 92500 HI 92500 makes it possible for you to use the powerful means of the most diffused spreadsheet programs Simply run your favorite
13. instrument has to be set as pH meter The meter can be calibrated through a one point or two point calibration Initial Preparation Two point calibration The pH calibration can not be pertormed if the pH electrode is broken or leaking or the reference electrode is broken or dirty and an error is active The ORP calibration can not be performed if the Reference electrode broken or dirty error is active The temperature probe should be connected to the instrument Pour small quantities of pH 7 01 HI 7007 and pH 4 01 HI 7004 or pH 10 01 HI 7010 solutions into individual beakers If possible use plastic beakers to minimize any EMC interference For accurate calibration use different beakers for each buffer solution the first one for rinsing the electrode and the second one for calibration By doing this contamination between buffers is minimized Enter the calibration mode select the pH calibration by moving through the menu with the 0 and 0 keys then press the CFM key Choose the pH buffer set between the two available ones the standard set 4 01 7 01 10 01 and the NIST set 4 01 6 86 9 18 standard set confirm the Std for the NIST set confirm the niSt use the 0 and O keys for select between the two options The default buffer set is the one used for last calibration even if the procedure was not completed Once confirmed the set of buffer val ues the primary LCD s
14. interval which corresponds to the Instrument ID configured through the setup item G 11 If the instrument does not recognize the address within the command string then it discards all the following bytes SV To avoid erroneous readings in Open Line conditions pull up and pull down resis tors should be connected as shown Fail Sate Open Line protection method 4 The Fail Safe resistors are connected only to one unit in the line and their value depends on the application and char acteristic impedance of the connection cable RS485 PROTOCOL If using HI 504 the fail safe resistors are already connected on it so they are necessary only if the HI 504910 transmitter is connected to a PC The interface signals are optoisolated from the ground of the instrument the electrode and the temperature sensor Before connecting the meter to the computer consult the com puter manual The instrument can only work as a slave component In other words it can work as a remote terminal equipment answering to the commands only This section is useful when connecting the HI 504910 trans mitter to a computer workstation or PLC and an user software is used instead of HI 92500 Commands are composed of four parts addresses com mand identifier parameter end of command Some of the commands are used when the master is request ing information from the controller other when the master wants to set a parameter in the instru
15. last calibration The secondary display will show BUF 1 to indicate first buffer Press the 0 1 key again to view the second memorized buffer if present at the time of last calibra tion The secondary display will show BUF2 to indicate second buffer Press the 0 or D key again to re turn to the first CAL DATA display date at the time of last calibration 33 OFFSET AND SLOPE DIRECT SELECTION 34 Note It is possible to edit directly the values of the offset and the slope to calibrate the instrument for pH Press ALT CAL DATA entering the last calibration data scrolling and then press ALT SETUP A password entry is required If a wrong password is con firmed the instrument reverts back to the normal mode Otherwise if correct password is con firmed the LCD will appear as follows the secondary LCD shows OFF to indicate offset while the primary one shows offset default value The first digit on the primary LCD is blinking and it is possible to change it by pressing 0 or 1 key Pressing the 0 key will move to the second digit while the first one will be fixed Pressing repeatedly the key will move cyclically through the digits of the primary LCD Once selected the desired value press CFM to confirm the calibration offset If the offset is invalid the WRONG indicator will blink on the display If DISPLAY or ALT CAL
16. match keys HI 504920 HI 504910 DISPLAY DISPLAY CAL DATA CAL DATA SETUP SETUP ALT CAL D The two LCD s have the same appearance the only differ ence is the LOG tag blinking on the HI 504920 display to indicate that the meter is operating in terminal mode SPECIFICATIONS Range 2 00 to 16 00 pH 2000 to 2000 mV 30 to 130 0 C Resolution 0 01 pH 1 mV 01 Accuracy 0 02 pH 20 C 68 F 2 mV 05 Typical EMC Deviation 0 2 pH 10 mV 05 Temperature compensation Automatic or manual from 30 to 130 C Temperature probe With 3 wire or 2 wire Pt100 Pt1000 sensor with automatic recognition and damage test Installation Category II Power Supply 24V AC DC 20 Power Consumption SVA Over Current Protection 400 mA 250V FAST FUSE Infrared optical interface towards HI 504920 RS232 baud rate fixed to 2400 Data logging 6000 pH C or ORP samples Environment 0 to 50 C max 85 RH non condensing Enclosure Fiberglass NEMA case 4X type Dimensions 216 x 165 108 mm 8 5 x 6 5 x 4 25 excluding mounting feet Weight 15 kg 3 3 1b INSTALLATION Note Note Remove the connectors protecting shield and wire the meter as explained below 5 8 s 8 22 5 25 88 55 a cc gt 29592909099 1 2 3 4 5 6 7 8 0 11 Power supply input 24V AC
17. section An automatic disconnection takes place if no character is received in the RS485 network in 3 4 minutes When confirming the CELL option for setup item POO if the LCD shows a blinking WRONG verity if the SIM card is correctly inserted the PIN number is correct the signal coverage is good SELFTEST PROCEDURES DISPLAY TEST Note The selftest procedure can be made only entering the setup menu and selecting one of the items of the tESt group t 00 4 03 All the tests are made while in setup mode where a time out is present If no action is performed for about 5 minutes the mode is automatically exited and the instruments returns to previous mode The display selftest procedure consists of lighting up all the display segments together To start the procedure select setup item 1 00 and an OFF blink ing message will appear on the primary LCD Press the 1 key once and the message will switch to a blink ing Press CFM key to confirm or the orf key again to return to the previous status If confirmation is given when the OFF message is blinking no action is performed and it will move to the next setup item t 02 The display test is announced by a scrolling Display test message a Mm li All the segments light up for a few seconds and then switch off before exi
18. start_time is for errors date and time at which the error was generated for setup events date and time of a setup item change for calibration events date and time of a calibration The meaning of end date and end time is for errors end date and time if the erroris not active anymore for setup events no meaning for calibration events no meaning The tokens format is described here below event code errors ERNN e g for Setp 1 alarm event code setup SCNN e g 501 for current month event code calibration CALE always the string CALE start date ddmmyy 010798 for July 1 1998 start_time hhmm e g 1735 for 5 35 pm end_date active errors just the letter N end date not active err ddmmyy 020798 for July 2 1998 end time active errors N just the letter N end time not active err hhmm e g 0920 for 9 20 am desA errors just the letter N desA setup PPPC C C C setup item format prev value desA calibration XXPHX XOrPX XX CX UOLIX desB errors just the letter N desB setup P P C C C C setup item format new value desB calibration just the letter N desB cleaning just the letter N See above in this section for the description of setup item format P P C C CC Events are logged in the event log file in chronological order i e record number 1 refers to th
19. 0 in Setup mode If the HI 504920 meter is not handy the keyboard and LCD inside the transmitter case can be used for configur ing calibrating and monitoring HI 504910 ff 9 IS instruments 6 0 Liquid Crystal ON OFF key ALT key DISPLAY CAL DATA key TXCAL key D SETUP key D CAL key CALT key CFM key CAL DATA Display 504920 REMOTE USER INTERFACE pH METER ONTOFF 56 ALT ASETUP DISPLAY VCALT CFM HI 504910 Digital Transmitter EGAL 1 6 00 06 power RS485 temperature pH or ORP supply probe electrode to turn the HI 504920 on and off to activate alternate key functions to enter exit the event scrolling mode to view pH buffer or C while calibrating pH and to view last calibra tion data with ALT for quick single point pH calibration to move up or enter exit the Setup mode with ALT to move right or enter exit the calibration mode with ALT to move down no alternate function for HI 504910 to confirm values The device can be restarted at any time by pressing CFM ALT and 1 SETUP together CFM first Note Throughout this manual every reference to keyboard or LCD refers to HI 504920 keyboard and LCD When using the HI 504910 internal keyboard and LCD refer to the below table to
20. 109999 0000 yes READING OFFSETS OFFS FOO pH or ORP actual value measured value 1 00 pH or measured yes seenote 7 200 mV to measured value value 1 00 pH or 200 mV pH or ORP reading offset 1 00 to 1 00 pH 0 00 pH yes adjustment 200 to 200 mV 0 mV Temperature actual value measured value 10 0 Cto meas value forATConly see note 8 measured value 100 C seenote 7 Temperature reading offset 10 010 10 0 C 00 m adjustment for ATC only see note 8 TEST tESt 100 Displaytest OFF To skip without testing OFF yes 102 EEPROM test G0 To start the display test 103 LEDstest 1 The calibration password allows only calibrations while the general password allows everything including calibration Obviously the general password and the calibration password cannot be viewed among other items when the SETUP key is pressed without entering the right general password The in strument is sold with a 0000 general password 2 When a wrong setup value is confirmed the instrument does not skip to the next setup item but remains in the cur rent item displaying a blinking WRONG indicator till the parameter value is changed by the user the same thing hap pens also for the setup code selection 3 See the Temperature compensation subsection for more details on how the Automatic temperature compensation and Manual temperat
21. 8 9940 Fax 603 5638 9829 Singapore Tel 6296 7118 Fax 6291 6906 South Africa Tel 011 615 6076 Fax 011 615 8582 Taiwan Tel 886 2 2739 3014 Fax 886 2 2739 2983 Thailand Tel 66 2619 0708 Fax 66 2619 0061 United Kingdom Tel 01525 850 855 Fax 01525 853 668 USA Tel 401 765 7500 Fax 401 765 7575 For additional Technical Support in your local language see www hannainst com MAN504910R3 05 05 68
22. 85 port To enable the modem connection with HI504902 first set item POO to PC then set item O 31 to On and finally set item O 32 with the dialing code of the country where the instrument is installed for example 049 for Germany or 001 for United States The HI504902 modem module must be connected to 504910 RS485 port not necessary to telephone line and switched on while the previous configuration is carried out If the country code is shorter than characters fill the code with zeros in front for example the country code 49 must be entered as 049 or the country code 1 must be entered as 001 The modem present in the HI504902 module is Telecom certified for working in all the following countries Argentina Australia Austria Belgium Brazil Canada Chile China Cyprus Czech Republic Denmark Finland France Germany Greece Hong Kong Hungary Iceland India In donesia Ireland Israel Italy Japan Korea Liechtenstein Luxembourg Malaysia Mexico Netherlands New Zealand Norway Philippines Poland Portugal Russia Singapore Slovak Republic South Africa Spain Sweden Switzerland Taiwan Turkey United Kingdom United States If your country is not present in the list please contact your Dealer The modem connection both with HI504900 and HI504902 allows the user to ask the controller from a re mote position about its status measurements and to change some paramete
23. I 931001 or HI 8427 simulator to the BNC socket The meter has to be set as ORP controller Atwo point calibration has to be performed the first point value is O mV and the second one can be chosen between 350 mV and 1900 mV Enter the calibration mode select the ORP calibration use the 0 and keys to move through setup menu and press the CFM key Set the HI 931001 or HI 8427 simulator to O mV The primary LCD will display the cur rent mV measure and the secondary LCD will show the first calibration point 0 mV When the reading becomes stable if the ORP value is close to the calibration point the CFM indicator starts blinking otherwise the WRONG indica tor blinks and the CAL is fixed on In the first case press CFM to confirm calibration The meter will proceed showing the scrolling message Press CFM again to confirm the current buffer or right to es cape to prevent from confirming the calibration point inadvertently Pressing again CFM the secondary LCD will display the second calibration point In the second case blinking WRONG the meter will re main in the WRONG state until the reading becomes unstable orthe calibration mode is exited by pressing the CAL key For the second calibration point it is possible to choose between 350 mV and 1900 mV Pressing the 0 key the value on the secondary LCD will switch between the two possibilities Note Note Once selected the se
24. N 55022 Radiated Class B EN61010 1 Safety requirements for electrical equipment for measurement control and laboratory use Date of Issue 18 12 2002 LON A Marsilio Technical Director On behalf of Hanna Instruments S r l Recommendations for Users Before using this product make sure that it is entirely suitable for the environment in which it is used Operation of this instrument in residential areas could cause unacceptable interferences to radio and TV equipment To maintain the EMC performance of equipment the recommended cables noted in the users manual must be used Any variation introduced by the user to the supplied equipment may degrade the instruments EMC performance To avoid electrical shock do not use this instrument when voltage at the measurement surface exceed 24VAC or 60VDC To avoid damage or burns do not perform any measurement in microwave ovens External cables to be connected to the instrument should be terminated with cable lugs 65 USER NOTES 66 TECHNICAL SERVICE CONTACTS Australia Tel 03 9769 0666 Fax 03 9769 0699 China Tel 10 88570068 Fax 10 88570060 Egypt Tel amp Fax 02 2758 683 Germany Tel 07851 9129 0 Fax 07851 9129 99 Greece Tel 210 823 5192 Fax 210 884 0210 Indonesia Tel 21 4584 2941 Fax 21 4584 2942 Japan Tel 03 3258 9565 Fax 03 3258 9567 Korea Tel 02 2278 5147 Fax 02 2264 1729 Malaysia Tel 603 563
25. PANN Digital Transmitter Instruction Manual TABLE OF CONTENTS WARRANTY cin d beber ned duds 4 PRELIMINARY EXAMINATION 5 GENERAL DESCRIPTION 5 FUNCTIONAL DESCRIPTION 6 SPECIFICATION eee bbe e ee eae ee 9 INSTALLATION ii ase aaa a rikici Sosa hes 10 CALIBRATION MODE kka 12 i sce ne eae Sree noone eens 22 MEASURE MODE dc mee ee Pe iid 28 ERRORS 4 RERO SESS aes 28 pH ORP PROBE 30 TEMPERATURE COMPENSATION 31 LAST CALIBRATION 32 OFFSET AND SLOPE DIRECT SELECTION 34 EVENT LOG FILE SCROLLING 36 FAULT CONDITIONS OEE Bee 38 RS485 COMMUNICATION 39 MODEM CONNECTION 50 SELFTEST PROCEDURES 263 2 0 39 ette ee edes 53 pH VALUES AT VARIOUS TEMPERATURES 56 ELECTRODE CONDITIONING AND MAINTENANCE 57 ACCESSORIES 245 5 dex xao so ae do eats 60 CE DECLARATION OF CONFORMITY 65 USERINOTES RR Re Ree E Y ded 66 WARRANTY Dear Customer Thank you for choosing a Hanna Product Please read this instruction manual carefully before using the instrument It will provide you with the necessary information for correct use of the instrument as well as a precise idea of its versatility If you need additional technical information do not hesitate to e mail us
26. ally close the error he has to go in setup menu item G 01 change the value to AtC automatic compensation without giving confirmation then change again to USEr and finally give confirmation by pressing the CFM key If the setup item G 01 is set to USEr a manual temperature compensation will be performed no matter whether the tem perature probe is connected to the Pt100 Pt1 000 input or not The start value for temperature when entered the manual mode is the one stored at G 02 Manual or probe error temperature If the user wants to change the temperature value while in manual mode he has to press the 0 or 1 key Pressing once the 0 key it will add 0 1 C to the actual temperature value while pressing the D key it will subtract 0 1 C During these operations both the temperature value displayed and setup item G 02 are updated the last one is updated with a maximum delay of 10s 31 LAST CALIBRATION DATA 32 If the instrument is set as pH meter the following data about the last calibration are stored in the EEPROM Date time offset in mV slope in mV pH uptotwo buffers If the instrument is set as ORP meter the data stored in the EEPROM are the following Date time first calibration point second calibration point While displaying these data the HI 504910 continues to acquire and transmit measurements To enter the last calibration data mode press ALT CAL DATA x
27. and set to O B bit 2 free for future use and set to 0 B bit 3 tree for future use and set to O B bit 4 free for future use and set to O B bit 5 free for future use and set to O B bit 6 free for future use and set to O B bit 7 free for future use and set to O Each bit is equal to 1 if the correspondent error is ON and equal to O if the correspondent error is OFF When a NAK or CAN char is sent the whole instrument reception buffer is cleared When the meter is receiving and answering to commands other than MVR TMR AER STS the pri mary LCD of HI 504920 in HI 504910 terminal mode or the primary LCD of HI 504910 displays 485 49 MODEM CONNECTION 50 Note Note Note Note A momodem connection can be established between HI504910 and a remote computer over a telephone line It is possible to make two different type of remote connection Over the GSM network connecting the HI504900 cel lular module to HI5049 10 RS485 port To enable the modem connection with HI504900 first it is necessary to configure the cellular phone set item with the PIN code of the SIM card in the 11504900 module and then set item POO to CELL To complete the configuration set item O 31 Modem calls answer enable to On A SIM card able to receive data calls must be used Over astandard analog telephone line connecting the HI504902 modem module to HI504910 RS4
28. at no damage has occurred during shipping If there is any noticeable damage notify your Dealer or the nearest Hanna Customer Service Center immediately Save all packing materials until you are sure that the instru ment functions correctly Any damaged or defective items must be returned in their original packing materials together with the supplied accessories GENERAL DESCRIPTION MAIN FEATURES HI 504910 acquires and transmits in a digital format to wards HI 504 controller or a computer workstation pH ORP and C measurements The digital link allows to send additional information espe cially regarding the pH ORP and temperature probes pH ORP probe check 00 orPt1000 sensor with automatic recognition and dam age test Setup procedure to configure general and measurement related parameters There are two separate sets of configuration param eters one for pH and one for ORP thus no loss of setting occurs when changing from pH to ORP and vice versa e Calibration usual pH calibration at 2 points or quick single point pH calibration through HI 504920 reference pH meter Old probe check dead probe check last calibration data inter nally recorded calibration date and time pH offset pH slope number of calibration points and correspondent pH values Manual temperature compensation available automati cally selected when a temperature input error occurs Possibility of a remote connect
29. ation mode is quitted For the second buffer value it is possible to choose be tween pH 4 01 and pH 10 01 or pH 4 01 and pH 9 18 if the NIST set has been selected Use the 0 or O key to switch between the two possibilities Once selected the buffer the procedure is the same as for the first calibration point A time out of 2 5 minutes is present for the pH electrode response time During calibration if the pH reading is not stable atter 2 5 minutes the device displays twice the scroll ing message time out then shows WRONG and it is not possible to complete calibration At the end of calibration with the meter set as pH control ler the instrument checks if the offset is between 30 and 30 mV and the slope between 53 5 and 62 mV pH If the values are not within these ranges the message OLd ProbE scrolls twice across the LCD The electrode is still working but it is necessary to perform a cleaning proce dure see Electrode conditioning and maintenance and In line Cleaning sections or replace it If the offset is outside the 60 to 60 mV range the dEAd ProbE message will scroll across the LCD and the corre sponding error is activated The electrode has to be replaced as soon as possible because there is no reliability on the measured pH values One point calibration with manual selection of the calibration value A one point calibration at a value different from the standard
30. cond calibration point set the HI 931001 350 mV or HI 8427 350 or 1900 mV simula tor to the same value and the calibration proceeds as for the first point In ORP calibration there is no time out Whenevera pH or ORP calibration is performed by means of HI 504920 the HI 504920 date and time are automati cally set in HI 504910 TEMPERATURE CALIBRATION Note Check that the code 90 has been entered in Setup mode Prepare a beaker containing crushed ice and water at 32 F and another one with hot water at 25 C 77 F or 50 C 122 F Use a Checktemp or another calibrated thermometer with a resolution asa reference thermometer Immerse the temperature probe in the bea ker with ice and water as near to the Checktemp as possible The instrument can support Pt100 or Pt1000 temperature sensor and calibration can be performed with anyone of these two probes After entering the calibration mode move through the menu using the 0 key to choose the temperature and the correct kind of used probe the primary LCD shows C and the secondary LCD gives indication about the kind of probe 100 indicates a Pt100 probe while 1000 stands for a Pt1000 probe Press the CFM key to confirm selection The calibration has to be performed over two points the first point has to be and the second one can be cho sen between 25 C and 50 C Once contirmed the type o
31. e CAL key SETUP MODE The Setup Mode allows the user to set all needed character istics of the meter Press ALT SETUP and enter the password when the device is in idle or control mode 2 If the correct password is not entered the user can only view the setup parameters except for passwords without modify ing them and the device continues to acquire and transmit measurements To each setup parameter or setup item is assigned a three characters one letter followed by two digits setup code which is entered and displayed on the secondary LCD The first character identifies the group of setup items while the two digits identify the particular item within that group The setup codes can be selected after password is entered and CFM key is pressed When CFM is pressed the current setup item is saved on EEPROM and the following item is displayed The possible transitions in setup mode are the following ENTERING THE PASSWORD 22 Press ALT SETUP to enter the setup mode The primary LCD will display 0000 while the secondary LCD shows PAS The first digit of the primary LCD will blink Enter the first digit of the pass word by using the 1 orD key lt Then move to the next digit with D and enter a digit as described above Continue for the last two digits When the whole password has been inserted press CFM to confirm it PD CAL Note The default password is set at 0000
32. e must be used After a reset of the instrument the answer to NNEVN lt CR gt is the same as NNEVF CR all events are new A modified record due to the closing of an error is not trans mitted by NNEVN lt CR gt so again the NNEVF lt CR gt com mand is needed A small subset of the event log file with information about the active errors can be downloaded through the NNAER lt gt command The answer is where are the ASCII representation of byte described below e g OxF3 0 F C 3 C C are the ASCII representation of byte B described below e g B Ox1D C 2 1 C D CC are the ASCII RR M of byte B below 6 g EN The meaning of B D B is 77 273 B bit O tree for future use and set to B bit 1 free for future use and set to 0 B bit 2 tree for future use and set to 3 Life check error B bit 4 pH electrode broken or leakage B bit 5 Reference electrode broken or leakage B bit 6 Old pH probe B bit 7 Dead pH probe Note Note B bit O No calibration B bit 1 Temperature probe broken B bit 2 free for future use and set to B bit 3 free for future use and set to B bit 4 Power reset B bit 5 EEPROM corruption B bit 6 Watchdog reset B bit 7 free for future use and set to 0 B bit O free for future use and set to O B bit 1 free for future use
33. e oldest event When the event log file is full the oldest event is replaced with the oncoming one In order to speed up the updating of a remote monitor for the events the NNEVF lt CR gt command is supported by NNEVN lt CR gt the new event request command which is answered with the list of events occurred since the last recep tion of a NNEVF lt CR gt or NNEVN lt CR gt command Here is the format for answer to NNEVN lt CR gt NN lt STX gt O0 lt ETX gt if there is no new event otherwise NN STX7new events no event code start date start time end date end time desA desB event code start date start time end date end time desA desB event code start date start time end date end time 47 48 Note Note desA desB_ lt ETX gt where m is the number of events Each token is followed by a blank space except the last one desB directly followed by the lt ETX gt character new events no is the number of new events and its format is the ASCII format for a number 15 02 7997 100 When a NNEVF lt CR gt or NNEVN CR command is received by the instrument the new events list is reset and a following NNEVN CR command will be answered with NN lt STX gt O lt ETX gt if no event took place in the meantime Thus if the answer to NNEVN lt CR gt com mand is not received correctly to update a remote monitor for events the NNEVF CR command for the whole event log fil
34. elect the frequency of the mains power supply in your country This value is used to filter mains power supply noise when pertorming the pH ORP probe check 12 When the instrument is powered RTC is checked to see if an RTC reset occurred since last software initialization if one even took place If this is the case the RTC is initialized with the default date and time 01 01 2000 00 00 An EEPROM reset does not affect the RTC settings 13 Only 2400 can be used for connection to HI 504 14 The modem present in the HI 504902 module is cer tified by Telecom to work in the following countries Argen tina Australia Austria Belgium Brazil Canada Chile China Cyprus Czech Republic Denmark Finland France Germany Greece Hong Kong Hungary Iceland India Indonesia Ireland Israel Italy Japan Korea Liechtenstein Luxembourg Malaysia Mexico Netherlands New Zeland Norway Philippines Poland Portugal Russia Singapore Slovak Republic South Africa Spain Sweden Switzerland Taiwan Turkey United Kingdom United States If your country is not present in the list please contact your Hanna dealer If the country code is shorter than characters fill the code with zeros in front 27 MEASURE MODE ERRORS Note Note The measure mode is the normal mode for the instrument During measure mode pH and temperature or ORP mea surements are acquired and sent to HI 504 or to a PC with HI 92500 or anothe
35. en channels ADJUSTER DIA 165 mm o __ N MOUNTING HI 605011 PVC PIPE Ho 2 Adjustable immersion ih Max length 69 cm Min length 10 cm ELECTRODE O RINGS DIA 50 mm Specifications HI 60542 HI 60545 HI 60501 Electrode Holder Material O Ring Material Min amp Max Temperature Min Immersion Length Max Immersion Length Max Pressure PVC PVC PVC NBR NBR NBR 10 C 14 F amp 60 C 144 F 10 cm 3 97 69 cm 27 1 8 BAR 116 PSI 60256 or 3 BAR 43 5 PSI 6 63 pH AND ORP ELECTRODES Hanna Instruments produces a wide range of pH and ORP electrodes specitically de signed for needs of industrial uses For a complete list of available electrodes visit our web site at www hannainst com or contact your dealer The below table lists all the Combination Flat tip PVDF body polymer filled electrodes with Matching Pin operating pressure up to 6 bar 87 psi HI a 1 Electrode type 1006 1016 1026 2004 2014 2024 pH electrodes with Teflon junction pH electrodes with ceramic junction pH electrodes with open junction ORP electrodes with Teflon junction ORP electrodes with ceramic junction ORP electrodes with open junction
36. f calibration the primary LCD will display the current temperature measure and the second ary LCD will show the first calibration point O C VOLT CALIBRATION 20 When the reading becomes stable if the temperature value is close to the calibration point the CFM tag starts blink ing otherwise the WRONG indicator will flash In the first case press the CFM key to confirm calibration The meter will proceed showing the scrolling message Press CFM again to confirm the current buffer or right to es cape to prevent from confirming the calibration point inadvertently Pressing again the CFM key the sec ondary LCD will display the second calibration point In the case the measured temperature is not close to the calibration value the meter remains in the WRONG status until the reading becomes unstable or the calibration mode is exited by pressing the CAL key When pertorming the second calibration point it is pos sible to choose between two values 25 C and 50 C Pressing the O0 orf key the value on the secondary LCD will switch between the two possibilities Once selected the value immerse the temperature probe in the second beaker as near as possible to the Checktemp and the calibration procedure will be the same as for the first point Check that the code 90 has been entered in Setup mode The instrument is factory calibrated however the user may also pertorm the Volt calibration which is a pr
37. ferential symmetrical input connect the proper electrode wire or a cable with a potential match ing pin grounding bar to the relevant terminal 9 If the matching pin is not available short pins 9 and 10 100 mm 3 9 min required 10 mm 0 4 JA Note All connected cables should end with cable lugs Note After wiring always reat tach the protecting shield Front view Top view 102 mm 4 0 V 1 EP NIE e o 18 5 E N N o 92 v J 4 473 165 mm 6 5 N 200 mm 7 9 d 5 N Bottom view E g 83 mm 3 3 108 mm 4 3 CALIBRATION MODE The calibration mode allows to calibrate the pH ORP and temperature inputs The instrument is factory calibrated for all these parameters Periodical calibration of the instrument is recommended in particular when greatest accuracy is required and at least bi yearly The electrode can be calibrated over only one point but when possible it is always good practice to perform a 2 point calibration QUICK SINGLE POINT pH CALIBRATION through HI 504920 Note A quick single point pH calibration at the pH value of the solution monitored by HI 504910 transmitter can be per formed HI 504920 serves as a reference pH meter Unlike the usual calibration with buffers this quick
38. ffect acquisition and transmission of measurements which continue normally If there is no event in the event log file nothing happens when the DISPLAY key is pressed Otherwise the primary display will show the code of the last logged event while the secondary LCD will show the num ber index of the event For each event the following is reported in any case error code displayed Er followed by the error number or setup item code displayed S followed by the setup item code or CALE indication event index the oldest event has index O the latest event has the higher index shown on the secondary LCD In addition the following information can be visualized e forerrors start date start fime and if error is not on anymore end date end time for configuration changes date of change time of change previous value new value for calibrations date of calibration time of calibration e calibrated unit pH C Uolt Once entered the log event scrolling press thell or 1 key to move through the events If the event is an error still active the error code on the pri mary LCD will blink otherwise it will be fixed To have a look at the additional information of a selected event press the D key it will cycle through the additional information To exit the log event scrolling press the DISPLAY key The logged event information can be downloaded to a
39. g it Evaluate your electrode performance based on the following Noise Readings fluctuate up and down could be due to clogged or dirty junction referto the Cleaning Procedure above Dry Membrane Junction soak in Storage Solution HI 70300 for at least 1 hour Check to make sure the installation is such as to create a well forthe electrode bulb to constantly remain moist Drifting soak the electrode tip in warm Hanna Solution HI 7082 forone hour and rinse tip with distilled water lowSlope referto the cleaning procedure above e No Slope Check the electrode for cracks in glass stem or bulb replace the electrode if cracks are found Note Make sure cable and connections are not damaged nor lying in a pool of water or solution Slow Response Excessive Drift soak the tip in Hanna Solu tion HI 7061 for 30 minutes rinse thoroughly in distilled water and then follow the Cleaning Procedure above For ORP Electrodes polish the metal tip with a lightly abra sive paper paying attention not to scratch the surtace and wash thoroughly with water With industrial applications it is always recommended to keep at least one spare electrode handy When anomalies are not resolved with a simple maintenance change the elec trode and recalibrate the instrument to see if the problem is alleviated 59 ACCESSORIES pH CALIBRATION SOLUTIONS HI 7611 Stainless steel Pt1000 probe with standard 1 2 external
40. gure completely the instrument Watchdog reset 92 The device was restarted due to a watchdog reset or a manual reset done through the key board 29 pH ORP PROBE CHECK 30 Note Note The pH electrode and the reference electrode for both pH and ORP can be automatically monitored through HI 504910 Setup items involved are 1 13 pH electrode impedance test enable 14 reference electrode impedance test enable and 1 15 maximum reference electrode impedance A pH electrode broken or leakage error error code 10 is generated whenever the pH electrode impedance is less than 1 MO This error can be due to breakage of the electrode glass or short circuits caused by moisture or dirt A reference electrode broken or dirty or not immersed error error code 11 is generated whenever the reference elec trode impedance is greater than the value set in item 1 15 maximum reference electrode impedance range is 0 5 to 100 0 default is 50 0 This error can be due to soiling of the reference electrode It can occur also when the reference electrode or the matching pin are not immersed in the solution The pH electrode test is performed when the following condi fions are satisfied the test has been enabled through the setup item I 13 the device is in one of the following modes measure last calibration data scrolling event log file scrolling the device is configured to measure pH If an am
41. he Life check time setup item 1 11 Clean and check the electrode pH electrode broken or leakage 10 The electrode glass is broken or short circuits have been caused by moisture or dirt Check pH probe and cable replace them if necessary Reference electrode broken or dirty 11 The refer ence electrode is soiled or broken Also the reference elec trode or the matching pin could not have been immersed in the solution Clean the electrode and replace it when necessary Old pH probe 12 The pH probe is old offset outside of 30 mV or slope outside the range 53 5 to 62 mV pH The electrode is still working but it is recommended to clean or replace it Dead pH probe 13 Offset is outside of 60 mV or slope outside the range 40 to 70 mV pH Readings are not reliable Try to clean the probe if the error persists after cleaning replace the probe immediately No calibration 14 The device has lost its calibration due to an EEPROM reset Calibrate again all the magnitudes Temperature probe broken 20 Check the tempera ture probe wires and connections Replace the probe if necessary Cellular error 50 This is an error related to the HI 504900 GSM module Check the power supply for HI 504900 Verity that the signal coverage is good Power reset 90 The device was restarted due to a power failure EEPROM corruption 91 The EEPROM data is dam aged Reset the EEPROM then recalibrate and reconfi
42. hours 4 4 hours name and it will be possible to change the group by press ing the 0 or 1 key 12 Minimum pH probeslope 45 to 75 mV pH 45 mV pH m Note At any time for exiting the setup mode press ALT SETUP If bru n m ur i no modification has been confirmed no setup item is test enable see note 10 Dod changed 14 Referenceelectrodeimpedance OFF disabled On yes Nos uu de if 4 dira test enable On enabled ote ile in the setup mode it no activity is pertormed tor about 5 minutes after entering the setup mode the mode is auto Tp Max ref impedance 0 5 to 100 0 500kO T matically exited and the instrument returns to the previous 17 Mainsfrequency see note 11 50 or 60 Hz 50 Hz 5 mode REAL TIME CLOCK rtC The following table lists the setup codes along with the descrip 100 Curent day 01 103 seenote 9 from RIC see note 12 ye tion of the specific setup items their valid values and whether the Current month 01 to 12 see note 9 from RTC see note 12 yes item is present for ORP mode 100 Current year 2000 to 2099 see note 9 from RIC see note 12 100 Current fime 00 00 to 23 59 see note 9 RTC see note 12 25 26 Notes Code Valid Values Default Present for ORP CELLULAR MODEM PC CONNECTION PHOn POO RS485 connectiontype PC PCormodemconnedion PC Vs seenote 9 CELL cellularmodule connection PIN number see note 9 0000
43. hows the measured pH value while the second ary LCD displays the first required buffer value Remove the protective cap from the pH electrode and im merse it into the buffer solution e g pH 7 01 together with the Potential Matching Pin and the temperature probe then stir gently 15 Note Note Note The electrode should be submerged ap proximately 4 cm 1 in the solu tion The temperature probe has to be located as close as possible to the pH m electrode When it is not possible to immerse the Potential Matching Pin together with the pH electrode in the solution disable the differential input by setting setup item 1 04 to OFF When the reading becomes stable the probe indicator will stop flash ing after about 30 seconds and if the pH value is close to the selected buffer the CFM indicator will start blinking otherwise the WRONG indicator the pot and the BUF tags will start blinking Press the CFM key to confirm calibration The meter will show the scrolling message Press CFM again to confirm the current buffer or right to escape to prevent from con firming the calibration point inadvertently Pressing again CFM the secondary LCD will display the second expected buffer value In the second case pH value not close to the buffer the meter will remain in the same state until the reading be comes unstable or the calibr
44. indicated with a N letter 2 Instrument configured for ORP If mV is not calibrated NN lt STX gt 0 lt ETX gt If calibration has been performed NN lt STX gt 1 date time NNN bufl buf2 N lt ETX gt The items in italic are separated by blank spaces and have the following formats 020498 for April 2 1998 1 623 for4 23 pm bufl ASCII string fora float example O buf2 ASCII string fora float example 1 900 None of the items above can be missing when the Instrument is configured to measure and control ORP as it always has to be calibrated on two points The event log file is requested through the NNEVF lt CR gt command The maximum length of the event log file is 100 records Here is the format for the answer date time hhmm Ifthere is no generated error or event the answer has the format NN lt STX gt 0 lt ETX gt otherwise NN lt STX gt events_no event code start date start_time end date end time desA desB event code start date start time end date end time desA desB event code start date start time end date end time desA 0658 lt ETX gt where m is the number of events Each token is followed by a blank space except the last one desB directly followed by the lt ETX gt character events no is the number of events and its format is the ASCII format for a number 1 2 99 100 The meaning of start date and
45. ion to a computer worksta tion through an external modem GSM module Data logging 6000 samples pH C or ORP downloadable through RS485 and HI 92500 application software FUNCTIONAL DESCRIPTION Inside view Front view ffr o IN Bora HI 504910 Digital Transmitter PROTECTING SHIELD REMOVE TO ACCESS CONNECTORS REATTACH AFTER WIRING 2 NS 0 6 asa 7 905 8 Infrared optical interface for HI504920 Cable glands for 24 VDC power supply for HI504 or computer workstation connection for pH or ORP electrode amp temperature probe inputs Cable gland for Matching Pin connection Power supply input 24 AC DC RS485 connections to HI504 PC modem GSM module Connections for Pt100 Pt1000 temperature sensor Connection for Potential Matching Pin Connection for electrode reference Connection for pH or ORP electrode input Protecting shield remove to access connectors reattach after wiring Green status LED Red status LED 15 ON SO N o Keyboard and LCD for HI 504910 are normally provided by HI 504920 To do this HI 504920 has to be put into terminal mode by selecting code 9
46. l bottle HI 7074M or HI 70741 Inorganic Cleaning Solution 230 or 500 ml bottle HI 92500 Windows Compatible Application Software HI 7077M or HI 7077L amp Fat Cleaning Solution 230 or 500 ml bottle OTHER ACCESSORIES HI 504900 Hanna GSM module HI 504902 Hanna RS485 modem HI 504920 Remote user interface pH meter ChecktempC Stick Thermometer range 50 to 150 C ChecktempF Stick Thermometer range 58 to 302 F HI 7610 Stainless steel Pt 00 probe with standard 1 2 external threads on both ends for in line and immersion installation 5 m 16 5 cable HI 7620 Glass Pt100 probe with external PG13 5 thread and 5 m 16 5 cable 60 61 pH AND ORP ELECTRODE HOLDERS HI 60542 ELECTRODE O RING ELECTRODE HOLDER HI 60545 Bypass loop electrode holder CAP ELECTRODE ASSEMBLY i O RINGS 3 4 PROCESS ELECTRODE lt gt ELECTRODE HOLDER BODY 62 In line electrode holder for direct pipe installation 88 mm 10 mm 30mm 12mm 3 4 NPT 2 NPT DIA 76 mm 415 mm T O 3 4 NPT w 92 mm 185 190 mm 140 5 mm 3 4 NPT DIA 50 mm HI 60501 Immersion electrode holder for tanks vessels baths and op
47. loaded a complete cali bration of the instrument is needed Once performed the selected action the instrument will remain in the setup menu and move to the next setup item 1 03 LEDs TEST To enter the LEDs test procedure select the setup item 3 and an OFF blinking message will appear on the LCD e Press the 0 or key once and the message will switch to a blinking GO e Press CFM key to confirm or the 0 or 1 key again to return to the previous status If confirmation is given when the OFF message is blink ing no action is performed and it will move to the first setup item of the group t 00 Once confirmed the test all the LEDs if anyone was ac tive are switched off and the message LEDs test Press CFM to escape will scroll on the primary LCD during all the test Some keys are used to toggle LEDs ON and OFF the DISPLAY key toggles the green LED the ALT CAL DATA keys toggle the red LED To exit the test press the CFM key and the previous configu ration of the LEDs is reestablished The instrument will remain in the setup menu and move to the first setup item of the group t 00 55 pH VALUES AT VARIOUS TEMPERATURES 56 Temperature has a significant effect on pH The calibration buffer solutions are effected by temperature changes to a lesser degree than normal solutions For manual temperature calibration please refer to the fol lowing chart pHVALUES 401 686
48. mat used for setup item setting is used also for setup item getting i e when a NNGETCNN lt CR gt command is received from the PC the reply NN lt STX gt P P C C C C lt ETX gt is sent back To perform a NNSETCNN command the general pass word has to be sent in advance through the NNPWD command See above forthe password effectiveness time out Some special setup items can not be set through RS485 com mands In particular it is not possible to access any setup item that pertorms a test on the instrument and it is not pos sible to configure the baud rate setup item O 30 43 44 The NNSET and NNGET commands when used for password items baud rate FOO and F 10 items are answered with NN CAN As soon as the instrument realizes that a command has been received it sends one of the following answers NN ACK char 0x06 if the instrument recognizes the set command and performs the requested task 2 NN STX char 0x02 DATA ETX char 0x03 if the re ceived command is a request of data 3 NN NAK char 0x15 if the instrument does recog nize the command or if the command syntax is wrong 4 NN CAN char 0x18 if the instrument can not answer to the request because the given general password is wrong etc The NN in the front of the answer is the Instrument ID 00 to 99 The time out for the above answers is 1 answer to STS
49. ment memory RAM or EEPROM The end of commands corresponds to the CR char The master software must send the command string with a moximum delay of 20 ms between each character The program on the master must not allow setting commands other than keyboard commands if the general password has not been entered After the general password recognition through the PWD command a 1 minute time out is let before the instrument locks again i e if the PC program waits for more than 1 minute between two subsequent setting commands the second one is not fulfilled and the PWD command must be issued again 42 Following is the complete list of commands available Command Parameter Remarks NNMDR not available Requests firmware code always available NNSTS not available Requests instrument status LEDs configuration change flag etc NNPHR not available Requests last pH reading instrument configured for pH NNMVR not available Requests last mV reading always available NNTMR not available Requests temperature reading always available NNCAR not available Requests all last calibration data always available NNGET CNN Requests setup item C NN NNPWD CC Sends the general password always available NNSET CNNP P C C C C Sets setup item C NN with parameter P P C C C C 12534 not available in setup mode NNEVF not available Reques
50. nk alternatively To return to normal mode press ALT and TXCAL f a communication error between the portable meter and the transmit ter occurs the primary LCD shows the rSEr message check the in terface cable and connections If the LCD shows verify that the HI 504910 transmit ter be configured for pH not for ORP measurement Whenever a pH or ORP calibration is performed by means of HI 504920 the HI 504920 date and time are automati cally set in HI 504910 USING HI 504920 AS TERMINAL FOR HI 504910 Note Note Note pH CALIBRATION Select code 90 in Setup mode and press CFM to confirm The HI 504920 enters the Terminal mode and the LOG tag blinks on the LCD In this situation it is not necessary to connect the electrode to the HI 504920 portable meter which is working as key board and LCD for the HI 504910 transmitter 22 To enter the calibration mode press lt ALT CAL Enter the correct password and press the CFM key If a wrong password is entered the instrument returns to the previous mode If the meter is set to measure ORP setup item G 00 the pH calibration pH reading offset adjustment and pH offset and slope are not available If the meter is configured for pH no ORP calibration can be selected Any calibration procedure can be aborted at any time by pressing ALT CAL and the instrument returns to the previ ous mode To perform any pH calibration procedure the
51. ocedure avail able for the instrument configured as pH meter only During pH measurements the instrument reads a mV value trom the electrode and then converts it into a pH value Connect a HI 931001 or HI 8427 simulator to the BNC socket Once entered the calibration mode move through the menu with O or D key select the Volt calibration the pri mary LCD shows UOL message and confirm it by pressing the CFM key After confirmation the primary LCD will show the actual mV value and the sec ondary LCD will display the first calibration point The calibration is performed over two points O mV and 350 mV Set the HI 931001 or HI 8427 simulator to O mV When the reading becomes stable if the measured value is close to the calibration point the CFM tag starts blink ing otherwise the WRONG indicator will flash In the first case press the CFM key to confirm calibration The meter will proceed showing the scrolling message Press CFM to confirm the current buffer or right to escape to prevent from confirming the calibration point inadvertently Pressing again CFM the secondary LCD will display the second calibration point Set the HI 931001 or HI 8427 simulator to 350 mV and follow the same procedure as for the first point If the measured value is not close to the calibration value the meter will remain in the WRONG status until the read ing becomes unstable or the calibration mode is exited by pressing th
52. plified electrode is used the pH electrode test must be disabled by the user through the setup item 1 13 The reference electrode test is performed when the following conditions are satisfied the test has been enabled through the setup item 1 14 the device is in one of the following modes measure last calibration data scrolling event log file scrolling When testing or calibrating the instrument through a pH ORP simulator like HI 931001 or HI 8427 tempo rarily set the item 1 13 to OFF and short the Match ing pin and the Reference pin terminals TEMPERATURE COMPENSATION If the setup item G 01 is set to AtC an automatic tempera ture compensation will be performed using the temperature value acquired with the Pt100 Pt1 000 input If the probe appears to be unconnected or anyway it does not give a valid temperature temperature outside the 30 to 130 C range the instrument will generate a broken tem perature probe error In this case the temperature will be automatically set to the setup item G 02 Manual or probe error temperature and the setup item G 01 will be auto matically set to USEr see below After that the 00 Pt1000 input continues to be monitored to track the Pt100 Pt1000 error closing The setup item G 01 is automatically changed back to AtC when the 00 Pt1 000 error is closed During error condition if the user decides to start working in manual mode and so manu
53. proce dure is carried out without having to interrupt normal measurement For better accuracy from time to time it is recommended to perform a 2 point calibration procedure which allows to ad just not only the offset but also the slope of the pH probe Connect the HI 504920 meter to HI 504910 through the infrared interface cable Immerse the pH electrode of the HI 504920 meter into the solution measured by HI 504910 as close as possible to the pH probe of HI 504910 Wait a few seconds for stabi lization When the HI 504920 meter displays the pH measurement press TXCAL HI 504920 must be out of the HI 504910 terminal mode The LCD will display for a couple of seconds to indicate that the calibra tion of the HI 504910 transmitter is in progress Ifthe calibration is completed correctly the LCD will flash the Good message for a few seconds Also the red LED flashes once Note Note Note Note Note Ifthe probe offset is outside the allowed limits ifthe HI 504910 transmitter is configured for ORP measurement or if some other error occurs during calibration the display will flash a bAd message Press TXCAL to return to normal mode and restart the calibration procedure from the beginning The primary LCD will then display the pH reading of the HI 504910 trans mitter while the secondary LCD will show the HI 504920 reading Both pH tags blink alternatively The t
54. r software implementing the communi cation protocol described in this manual see the RS485 communication section In a normal situation during measure mode the green LED is ON and the red LED is OFF LEDs are located inside the instrument case When the Setup mode or the Calibration mode are entered through the HI 504920 or through the HI 504910 inter nal keyboard both the green and the red LEDs are ON The red LED ON warns the user that the HI 504910 is not measuring and transmitting measurements In this situation an HI 504 connected to HI 504910 will be in hold mode In case of an error occurs in HI 504910 the green LED turns OFF and the red LED flashes When measurements are in overflow the internal LCD of the HI 504910 or that of HI 504920 in terminal mode will show the blinking upper or lower boundary value 28 When an error occurs the green LED turns OFF and an alarm indication is given by the flashing red LED Below are listed all the errors with the correspondent error code The error code is reported in the event log file which can be examined by means of the DISPLAY key while in normal mea sure mode see the Event log file scrolling section This is necessary for identifying which error is active and makes the red LED flash Life check error 03 The pH reading did not vary more than 0 10 pH for pH or the mV reading did not vary more than 10 mV within the time selected through t
55. rs GSM module or Modem RS485 Network HI 504910 HI 504910 HI 504910 0 31 0 31 Off 0 31 Off P 00 CELL P 00 PC P 00 PC if using HI 504900 P 00 PC if using HI 504902 Many devices can be monitored through a remote modem connection simply connecting all the devices and the mo dem or cellular module to the same RS485 network Only one device has to be configured through O 31 to an swer to modem calls That device will be the one controlling the modem or the cellular module To avoid conflicts the following must never be done putmorethan one modem or cellular module in the same RS485 network set O 31 to On in more than one device in the same RS485 network set POO to CELL in more than one device in the same RS485 network set 0 31 to On in one device and to CELL in another one within the same RS485 network puta PC monitor within the RS485 network Provided the above any Hanna instrument with RS485 port can be attached to the network and monitored remotely 52 Note When making a call after the data connection is established the NNPWD command where NN is the address of the device controlling the modem i e the one with O 31 set to On must be issued by the remote computer within 15 seconds When the data connection is up the RS485 protocol for a remote connection is all the same as for a local network see the previous
56. spreadsheet program and open the file downloaded by HI 92500 It is then possible to elaborate the data with your software e g graphics statistical analysis To install HI 92500 you need a 3 5 drive and few minutes to follow the instructions conveniently printed on the disk s label Contact your Hanna Dealer to request a copy The RS485 standard is implemented in HI 5049 10 with the following characteristics Data rate up to 19200 bps manually selected Communication Bidirectional Halt Duplex Line length up to 1 2 km typ with 24AWG cable Loads up to 32 typ Internal termination none N Only 2400 bps can be used for connection to HI 504 Windows registered Trademark of Microsoft Co 39 CONNECTIONS 40 The connections for the 2 pin RS485 terminal provided are as follows AL BA SPSS Le t R The instrument has no internal line termination To terminate the line an external resistor egual to the characteristic line impedance typically 1202 must be added at both ends of the line RS485 line 1200 1200 1 1 Unit 1 Unit n The RS485 can connect up to 31 Digital Transmitters on the same physical network All the units are slave devices and are monitored and controlled by a single master station typi cally an industrial PLC or PC Each unit is identitied by its RS485 address included in the 00 to 99
57. st and not allowed to dry out This can be achieved by installing the electrode in such a way that it is constantly in a well filled with the sample stream or tank When not in use replace the solution in the protective cap with a few drops of HI 70300 Storage Solution or in its absence HI 7082 KCI 3 5M Solution Follow the Preparation Procedure above before taking mea surements NEVER STORE THE ELECTRODE IN DISTILLED OR DEION IZED WATER 57 PERIODIC MAINTENANCE Inspect the electrode and the cable The cable used for the connection to the controller must be intact and there must be no points of broken insulation on the cable or cracks on the electrode stem or bulb Connectors must be perfectly clean and dry If any scratches or cracks are present replace the electrode Rinse off any salt deposits with water CLEANING PROCEDURE IMPORTANT TROUBLESHOOTING 58 General Soak in Hanna HI 7061 General Cleaning Solution for approximately hour Removal of films dirt or deposits on the membrane junction Protein Soak in Hanna HI 7073 Protein Cleaning So lution for 15 minutes Inorganic Soak in Hanna HI 7074 Inorganic Cleaning Solution for 15 minutes Oil grease Rinse with Hanna 7077 Oil and Fat Clean ing Solution After performing any of the cleaning procedures rinse the electrode thoroughly with distilled water and soak the elec trode in HI 70300 Storage Solution for at least 1 hour before reinstallin
58. te 4 yes 6 01 Temperature compensation Automatic NC m USE Manual see note 3 C 6 02 Manual or probe error 3010130 0 25 0 m temperature see note 3 6 10 Factory ID 0000 to 9999 see note 9 0000 Once a value is set press the CFM key to confirm The T 4 instrument will turn to the next item and the new item s Instrument ID 001099 see note 9 00 yes value will be displayed on the primary LCD alas RS485 address If a wrong value is confirmed the 6 98 Calibration password 0000 to 9999 see notes 1 9 0000 yes WRONG indicator starts blinking 6 99 General password 0000 to 9999 see notes 1 9 0000 yes the new value is not accepted and OUTPUT OutP the instrument will not switch to the 0 L ns nacidtemontil eccerect veluscwill 0 30 Baud rate see notes 9 13 1200 2400 4800 9600 19200 2400 yes be contirmed 0 31 Modem calls answer enable disabled OF yes Instead of selecting the item manually it is possible to cycle seenote 9 On enabled through all the items of a selected group by pressing re 0 32 Modem country code Dialing code of a county where 000 yes peatedly CFM key The procedure to modify the item s value see note 14 the modem of HI504902 is certified is the same described above INPUT InPU If the last item of the group is reached by pressing the Mikan Okada o CFM key again the primary display will show the group Ao i see note 5 1 1 hour 2 2
59. ting the display test pro cedure and moving to the next setup item 1 02 53 EEPROM SELFTEST 54 The EEPROM selftest procedure involves verifying the stored EEPROM checksum To enter the EEPROM test procedure select the setup item 1 02 and an OFF blinking message will appear on the LCD Press the 0 key once and the message will switch to a blinking GO Press CFM key to confirm or the 0 or 1 key again to return to the previous status If confirmation is given when the OFF message is blink ing no action is performed and it will move to the next setup item 1 03 After confirmation the selftest procedure begins with the tESt message blinking for a few sec onds During this time the instrument pertorms the EEPROM check and if the checksum is correct the Stored data good message will scroll on the primary display 1 1 Atter that the meter will remain in setup menu and move to the next setup item If the checksum fails a fault alarm is generated and the following message appears on the LCD Stored data error Press UP button to reset stored data or RIGHT button to ignore lf the key is pressed the instrument restarts operation but the device will be in Hold mode in any case i e no acquisition of measurements Ifthe D key is pressed all the data stored in the EEPROM are erased and the default values
60. ts event log file always available NNEVN not available Requests new events always available NNAER not available Requests active errors always available NNKDS nul Same as LCD key NNKCD null Same as CAL DATA key NNKUP nul Same as 1 key NNKRG nul Same 05 key NNKST nul Same as SETUP key NNKCL nul Same as CAL key NNKDW nul Same as key NNKCF nul Same as CFM key ie C C C C are ASCII chars corresponding to the setup item content P P are two additional bytes used for sign and half digit as follows gt 0 P lt 0 0 if most significant digit is not used P 1 if most significant digit is used When an item is shorter than 4 digits the C characters are filled with blanks Following are examples for setup item format item 1 12 minimum pH probe slope parameter value 56 2 mV format 056200 where 9 indicates a blank item F 11 temperature reading offset adjustment param eter value 0 3 C format 00003 item G 01 temperature compensation parameter value AIC format O ATC For all items with a fixed set of choices blank spaces on the left of the value displayed are replaced with as many characters are needed to reach the maximum string length which is for example 3 for item 1 11 Blanks must be put on the tail for all items in order to have always a total length of 6 characters see the setup table The same parameter for
61. ure compensation work 4 Whenever the pH ORP selection item is changed from pH into ORP or vice versa all of the calibration and setup data regarding pH when changing to ORP or ORP when chang ing to pH are kept They are automatically restored if the mea sured magnitude is changed back later The following setup items cannot vary when changing from pH to ORP or vice versa because they are items strictly related to the instrument and not to the measured magnitude Factory ID Instrument ID alias RS485 address Calibration password General password Baud rate Modem calls answer enable and Mains frequency 5 A life check error is generated if the pH reading does not vary for more than 0 10 pH within the time selected through the life check time item for pH or mV reading for more than 10 mV within the same time for ORP 6 When the instrument is configured for ORP measure ments some of the above items or item values are not any more available to the user 7 measured value is the reading value with a null read ing offset adjustment 8 If the device is set for MTC item G 01 to USEr then items and F 11 cannot be modified nor seen When item G 01 is changed from AtC into USEr item E11 is auto matically zeroed 9 These items do not vary when the pH ORP input selec tion G 00 is changed 10 This item must be set to OFF when an amplified electrode is in use 11 S
62. use and setto 0 B bitO free for future use and set to 0 B bit 1 2 setup mode bit 2 0 and bit 1 O notin setup mode bit 2 1 and bit 1 O setup mode view only bit2 1 and bit 1 1 setup mode unlocked B bit3 calibration mode with device unlocked 1 yes O no bit4 setup updated setto 1 after a device power up or a device reset or a change in setup made through the instrument keyboard reset to O after receiving a GET command B 585 calibration made set to 1 aftera device power up orwhatever complete calibration reset to O after receiving a CAR command B hold mode 1 ON 0 OFF B bit7 freeforfuture use and set to The NNCAR request produces the following answer 1 Instrument configured for pH If pH is not calibrated NN lt STX gt 0 lt ETX gt If calibration has been performed NN lt STX gt 1 date time offset slope slope2 buf2 N lt ETX gt The items in italic are separated by blank spaces and have the following formats 020498 for April 2 1998 time hhmm 1623 for4 23 pm offset ASCII string fora float example 0 2 slope ASCII string fora float example 62 5 slope2 ASCII string fora float example 60 4 date 45 46 bufl ASCII string fora float example 7 01 buf2 ASCII string fora float example 4 01 When some of the above items is missing for example buf3 when a 2 point calibration is performed it is
63. wo values may differ a little if the measured solution is not stable For an accurate calibration perform the single point procedure only when readings are stable To exit the calibration mode press TXCAL It is advisable to perform the entire calibration procedure keeping the HI 504920 meter and the HI 504910 trans mitter connected through the infrared optical interface t can happen that HI 504910 is positioned in a difficult to reach place while the pH probe of HI 504920 is im mersed in the solution the two instruments will be not con nected and when the primary LCD shows the blinking CAL message the secondary display will show a count down starting trom 120 seconds In this situation the pH probe can be taken out of the solution while the interface cable has to be connected to the HI 5049 10 transmitter before the countdown reaches zero Calibration then con tinues and at the end of the procedure the pH tag of the secondary LCD will not blink If the infrared cable is not connected before the end of the countdown the LCD shows the tiMEout message and the calibration is not completed It is possible to check the HI 504910 pH reading against the HI 504920 pH reading at any time without calibrating the HI 504910 transmitter Press ALT TXCAL The primary display will C showthe HI 504910 pH N JN reading while the sec ondary LCD displays Note HI 504920 pH reading Both pH tags bli

Hanna Instruments Hannah Instruments digital transmitter HI 504910 User's Manual

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