Page 2 - TABLE OF CONTENTS; ELECTRODE CONDITIONING AND MAINTENANCE . . 57
TABLE OF CONTENTS WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 PRELIMINARY EXAMINATION . . . . . . . . . . . . . . . . . . 5 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . 5 FUNCTIONAL DESCRIPTION . . . . . . . . . . . . . . . . . . 6 SPECIFICATIONS . . . . ....
Page 3 - PRELIMINARY EXAMINATION; Note; GENERAL DESCRIPTION; MAIN FEATURES; WARRANTY; HI 504910 meter is warranted for two years (sen-
4 5 PRELIMINARY EXAMINATION Remove the instrument from the packing material and exam-ine it carefully to make sure that no damage has occurredduring shipping. If there is any noticeable damage, notifyyour Dealer or the nearest Hanna Customer Service Centerimmediately. Note Save all packing materials...
Page 4 - FUNCTIONAL DESCRIPTION
6 7 1. Liquid Crystal Display2. ON/OFF key, to turn the HI 504920 on and off. 3. ALT key, to activate alternate key functions 4. DISPLAY / CAL DATA key, 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) 5. TXCAL key, f...
Page 5 - SPECIFICATIONS; Automatic or manual from -30 to 130 oC; When using the
8 9 SPECIFICATIONS Range -2.00 to 16.00 pH-2000 to 2000 mV-30 to 130.0 ºC Resolution 0.01 pH1 mV0.1 ºC Accuracy ±0.02 pH (@20°C/68°F) ±2 mV±0.5 ºC Typical EMC Deviation ±0.2 pH±10 mV±0.5 ºC Temperature compensation Automatic or manual from -30 to 130 ºC Temperature probe With 3-wire or 2-wire Pt100/...
Page 6 - INSTALLATION; Power supply input; The serial interface of the; pH or ORP electrode; All connected cables should end with cable lugs.; DIMENSIONS
10 11 INSTALLATION • Remove the connectors protecting shield and wire the meteras explained below. • Power supply input (24V AC/DC): connect a 2-wire power cable (with a minimum cross area of 0.75 mmq) to theterminals #1 and #2. If using a DC supply, connect the positive wire to the termi-nal #1. • ...
Page 7 - CALIBRATION MODE
12 13 Note If the probe offset is outside the allowed limits, if the HI 504910 transmitter is configured for ORP measurement, or if some othererror occurs during calibration, the display will flash a “bAd”message. Press TXCAL to return to normal mode and restart thecalibration procedure from the beg...
Page 8 - pH CALIBRATION
14 15 The pH calibration can not be performed if the pH electrodeis broken or leaking or the reference electrode is broken ordirty and an error is active. The ORP calibration can not beperformed if the “Reference electrode broken or dirty” error isactive. The temperature probe should be connected to...
Page 10 - TEMPERATURE CALIBRATION; ORP CALIBRATION
18 19 • Once selected the second 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 forthe first point. Note In ORP calibration there is no time-out. Note Whenever a pH or ORP calibration is performed by means of HI...
Page 11 - VOLT CALIBRATION
20 21 • Connect a HI 931001 or HI 8427 simulator to the BNC socket. • Once entered the calibration mode, move through the menu with æ or key, select the Volt calibration (the pri-mary LCD shows “UOLt” message) andconfirm it by pressing the CFM key. • After confirmation the primary LCD will show the ...
Page 12 - ENTERING SETUP ITEMS; SETUP MODE; ENTERING THE PASSWORD
22 23 Note The default password is set at “0000”. ENTERING SETUP ITEMS After confirmation of the password theprimary LCD will show the name of thefirst setup group (see table) while thesecondary LCD will display the setupcode of the first item of the group. • By pressing the æ or key it is possible ...
Page 13 - • Once a value is set, press the CFM key to confirm. The
24 25 Code Valid Values Default Present for ORP GENERAL (“GEnE”) G.00 pH/ORP input “PH”, “OrP” (see note 4) “PH” yes G.01 Temperature compensation “AtC”: Automatic “AtC” no “USEr”: Manual (see note 3) G.02 Manual or probe error -30 to 130.0 ºC 25.0 no temperature (see note 3) G.10 Factory ID 0000 to...
Page 14 - Only 2400 can be used for connection to HI 504.; Notes
26 27 sured magnitude is changed back later. The following setupitems cannot vary when changing from pH to ORP or viceversa (because they are items strictly related to the instrumentand not to the measured magnitude): Factory ID, Instrument IDalias RS485 address, Calibration password, General passwo...
Page 15 - Reference electrode broken or dirty (11); MEASURE MODE; be in hold mode; ERRORS
28 29 Clean and check the electrode. • pH electrode broken or leakage (10) : The electrode glass is broken or short circuits have been caused by moistureor dirt.Check pH probe and cable; replace them if necessary. • Reference electrode broken or dirty (11) : The refer- ence electrode is soiled or br...
Page 16 - TEMPERATURE COMPENSATION
30 31 TEMPERATURE COMPENSATION If the setup item G.01 is set to “AtC” an automatic tempera-ture compensation will be performed using the temperaturevalue acquired with the Pt100/Pt1000 input.If the probe appears to be unconnected, or anyway it doesnot give a valid temperature (temperature outside th...
Page 17 - LAST CALIBRATION DATA
32 33 Note At any time pressing the DISPLAY key or (ALT+) SETUP keys the meter will return to the regular operating display. • Press the æ or key to view the time of last calibration. The second-ary display will show “HOU” toindicate “hour and minute” while theprimary LCD will show the time asHH:mm ...
Page 18 - OFFSET AND SLOPE DIRECT SELECTION
34 35 • If an offset calibration has been made, the instrument will turn to“slope” calibration (as indicated bythe “SLO” message on the second-ary display. The slope value is shownon the primary LCD and the first digitis blinking to permit modifications). • Press the æ or key to modify the value or ...
Page 19 - EVENT LOG FILE SCROLLING
36 37 EVENT LOG FILE SCROLLING The event log file is composed of maximum 100 recordedevents, which include errors, calibration events (type of cali-bration, date, time) and configuration changes.To enter the event log file scrolling, press the DISPLAY keywhile in normal measurement mode. Event scrol...
Page 20 - FAULT CONDITIONS
38 39 RS485 COMMUNICATION The digital transmission of measurements, error and statusinformation is implemented through an RS485 link.The transmission can be directed to an HI 504 or to a com- puter workstation, which can be connected locally or remotelythrough a modem connection.RS485 standard is a ...
Page 21 - CONNECTIONS
40 41 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 theinstrument, the electrode and the temperature sensor. Before connecting the meter to t...
Page 25 - NN
48 49 desA m desB m <ETX>” where m is the number of events. Each token is followed by a blank space, except the last one (“ desB m ”), directly followed by the <ETX> character.“ new_events_no ” is the number of new events and its format is the ASCII format for a number (“1”, “2”.... “99”...
Page 26 - MODEM CONNECTION
50 51 MODEM CONNECTION 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 HI504910 RS485 port. To enable the modem ...
Page 27 - SELFTEST PROCEDURES; DISPLAY TEST
52 53 SELFTEST PROCEDURES The selftest procedure can be made only entering the setupmenu and selecting one of the items of the “tESt” group (t.00- t.03). Note All the tests are made while in setup mode, where a time-out is present. If no action is performed for about 5 minutes, themode is automatica...
Page 29 - ELECTRODE CONDITIONING AND MAINTENANCE; PREPARATION; pH VALUES AT VARIOUS TEMPERATURES; TEMP
56 57 ELECTRODE CONDITIONING AND MAINTENANCE PREPARATION Remove the electrode protective cap. DO NOT BE ALARMED IF ANY SALT DEPOSITS AREPRESENT. This is normal with electrodes and they will disappear whenrinsed with water. During transport tiny bubbles of air may have formed insidethe glass bulb. Th...
Page 30 - PERIODIC MAINTENANCE
58 59 - 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 t...
Page 31 - ACCESSORIES; pH CALIBRATION SOLUTIONS
60 61 HI 7611 Stainless steel Pt1000 probe with standard 1/2’’ externalthreads on both ends for in-line and immersion installation;5 m (16.5’) cable HI 7621 Glass Pt1000 probe with external PG13.5 thread and 5 m(16.5’) cable HI 60542-0 1 set of O-rings for HI 60542 electrode holder HI 60545-0 1 set ...
Page 33 - CE DECLARATION OF CONFORMITY; pH AND ORP ELECTRODES
64 65 CE DECLARATION OF CONFORMITY Recommendations for Users Before using this product, make sure that it is entirely suitable for theenvironment in which it is used.Operation of this instrument in residential areas could cause unacceptableinterferences to radio and TV equipment.To maintain the EMC ...
Page 34 - USER NOTES
Page 35 - TECHNICAL SERVICE CONTACTS; For additional Technical Support in your local language,
68 MAN504910R3 05/05 TECHNICAL SERVICE CONTACTS Australia: Tel. (03) 9769.0666 • Fax (03) 9769.0699 China: Tel. (10) 88570068 • Fax (10) 88570060 Egypt: Tel. & Fax (02) 2758.683 Germany: Tel. (07851) 9129-0 • Fax (07851) 9129-99 Greece: Tel. (210) 823.5192 • Fax (210) 884.0210 Indonesia: Tel. (2...
