Hanna Instruments HI 121 Instruction Manual

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[Page 1] Hanna Instruments HI 121

1 Instruction Manual pH/mV/ISE/Temperature Bench Meters with Calibration Check HI 121 & HI 123 ON OFF LOG CHANNEL CFM CAL Calibration Check HI 123 pH / mV / ISE Meter www.hannainst.com ...

[Page 2] Hanna Instruments HI 121

2 Dear Customer, Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using the instruments. This manual will provide you with the necessary information for correct use of the instruments, as well a...

[Page 3] Hanna Instruments HI 121

3 The Hanna HI 121 and HI 123 are professional bench meters with two input channels for pH, ORP (Oxidation Reduction Potential), ISE and Temperature measurements with Calibration Check. Relative mV feature is also provided on both channels. Calibrati...

[Page 4] Hanna Instruments HI 121

4 FUNCTIONAL DESCRIPTION HI 121 1) Left Keyboard 2) ON switch 3) OFF switch 4) Right Keyboard 5) Reference input socket for ISE channel 6) BNC electrode connector for ISE channel 7) Pin input socket for pH channel 8) BNC electrode connector for pH ch...

[Page 5] Hanna Instruments HI 121

5 FUNCTIONAL DESCRIPTION HI 123 1) Left Keyboard 2) ON switch 3) OFF switch 4) Right Keyboard 5) Reference input socket for ISE channel 6) BNC electrode connector for ISE channel 7) Pin input socket for pH channel 8) BNC electrode connector for pH ch...

[Page 6] Hanna Instruments HI 121

6 1 2 3 4 5 10 11 12 7 6 9 8 NUMResolutionISE RelmVmVpH AutoLOG SETGLPAutoHOLD HI 121 KEYBOARD ON THE LEFT Shortcuts to alternate functions 1) AutoHOLD key, to freeze the first stable reading on the LCD. 2) GLP key, to display Good Laboratory Pract...

[Page 7] Hanna Instruments HI 121

7 1 9 8 7 6 5 4 3 2 RCL LOG MODE CHANNEL CFMCAL Calibration Check pH / mV / ISE Meter HI 121 HI 121 MAIN KEYBOARD ON THE RIGHT 1) CAL key, to enter and exit/escape calibration mode. SET key (second function), to enter/exit SETUP mode. 2) CFM key, t...

[Page 8] Hanna Instruments HI 121

8 1 2 3 4 5 10 11 12 7 6 9 8 NUMResolutionISE RelmVmVpH AutoLOG PaperPrintAutoHOLD HI 123 KEYBOARD ON THE LEFT Shortcuts to alternate functions 1) AutoHOLD key, to freeze the first stable reading on the LCD. 2) Print key, to obtain a printout or to...

[Page 9] Hanna Instruments HI 121

9 9 8 7 6 5 4 3 2 1 LOG CHANNEL CFMCAL Calibration Check HI 123 pH / mV / ISE Meter HI 123 MAIN KEYBOARD ON THE RIGHT 1) CAL key, to enter and exit/escape calibration mode. SET key (second function), to enter/exit SETUP mode. 2) CFM key, to confirm...

[Page 10] Hanna Instruments HI 121

10 HI 121 AND HI 123 SPECIFICATIONS EGNAR – Hp00.61ot00.2 – Hp000.61ot000.2 Vm9.999± Vm0002± mpp99991ot100.0 )Fº0.842ot0.4–(Cº0.021ot0.02– NOITULOSER Hp10.0 Hp100.0 Vm1.0 Vm1 )999.9ot100.0morf(mpp100.0 )99.99ot00.01morf(mpp10.0 )9.999ot0...

[Page 11] Hanna Instruments HI 121

11 POWER CONNECTION Plug the 12 VDC adapter into the power supply socket. Notes: • These instruments use non volatile memory to retain the pH, mV, Ion, temperature calibrations and all other settings, even when unplugged. • Make sure a fuse prote...

[Page 12] Hanna Instruments HI 121

12 • The instrument automatically defaults to pH or mV measurement mode, if a HANNA P type pH or ORP electrode is detected. • If no HANNA P type electrode is detected, the instrument starts in the same range as it was at power off. pH MEASUREMENT...

[Page 13] Hanna Instruments HI 121

13 The temperature can be adjusted with the ARROW keys or the numerical keypad (from –20.0 ºC to 120.0 ºC or from –4.0 ºF to 248.0 ºF). Press NUM to change the temperature value with the numerical keys. The “2nd” tag will blink. Press CLR...

[Page 14] Hanna Instruments HI 121

14 Note: Press or from the left keypad to toggle between temperature and absolute mV reading on the secondary LCD. The Relative mV reading is equal to the difference between the absolute mV input value and relative mV offset established in the ...

[Page 15] Hanna Instruments HI 121

15 Calibrate the instrument often, especially if high accuracy is required. The instrument should be recalibrated: • Whenever the pH electrode is replaced. • At least once a week. • After testing aggressive chemicals. • If “CAL DUE” tags ...

[Page 16] Hanna Instruments HI 121

16 All new calibrations will override existing stored calibration data, in a ±0.2 pH window, at these calibration points. The slopes adjacent to the calibration points will be reevaluated. If the new calibration point has no correspondence in the ex...

[Page 17] Hanna Instruments HI 121

17 • The “ ” tag will blink on the LCD until the reading is stable. • When the reading is stable and close to the selected buffer, “CFM” tag blinks. • Press CFM to confirm calibration. • The calibrated value is then displayed on the p...

[Page 18] Hanna Instruments HI 121

18 CFM • After the third calibration point is confirmed, immerse the pH electrode and the temperature probe approximately 4 cm (1½”) into the fourth buffer solution and stir gently. The temperature probe should be close to the pH electrode. �...

[Page 19] Hanna Instruments HI 121

19 If the existing stored calibration is full (five calibration points), the instrument asks which buffer will be replaced by current buffer. Press the ARROW keys to select another buffer to be replaced. Press CFM to confirm the buffer that will be r...

[Page 20] Hanna Instruments HI 121

20 The stored calibration history to used issue error and warning messages during calibration to help ensure the highest accuracy. As electrode aging is normally a slow process, substantial changes from previous calibrations are likely due to a tempo...

[Page 21] Hanna Instruments HI 121

21 ELECTRODE CONDITION & ELECTRODE RESPONSE TIME When using an appropriate HANNA BNC electrode with pin, the instrument will assess electrode condition and response time during each calibration and will display the calibration status for the rest...

[Page 22] Hanna Instruments HI 121

22 The electrode response is evaluated only when calibration has been performed using pH 7.01 or pH 6.86, pH 4.01 and pH 10.01 or pH 9.18 buffers. When the instrument cannot evaluate the electrode response or pH 1.68/12.45 buffer was used as calibrat...

[Page 23] Hanna Instruments HI 121

23 For greatest accuracy, it is recommended to calibrate the instrument frequently. Due to electrode conditioning time, the electrode must be kept immersed a few seconds to stabilize. The user will be guided step by step during calibration with easy ...

[Page 24] Hanna Instruments HI 121

24 CFM • The calibrated value will be displayed on the primary LCD and the second expected standard solution on the secondary LCD. Note: The instrument will automatically skip the standard used for the first point. • After the first calibration...

[Page 25] Hanna Instruments HI 121

25 GLP is a set of functions that allows storage and retrival of data regarding the maintenance and status of the electrode. All data regarding pH, Rel mV and ISE calibration is stored for the user to review when necessary. CALIBRATION ALARM TIME OUT...

[Page 26] Hanna Instruments HI 121

26 • The pH calibration offset. • The pH calibration slope (the GLP slope is the average of the calibration slopes; the percentage is referred to the ideal value of 59.16 mV/pH). • The calibration buffers in calibrating order, with the correspo...

[Page 27] Hanna Instruments HI 121

27 The fourth pH calibration buffer: The fifth pH calibration buffer: Notes: • The “OLd” message displayed beside the pH value means that this buffer was not used during last calibration. Press 2nd then SET key if you want to see calibration da...

[Page 28] Hanna Instruments HI 121

28 LAST ISE CALIBRATION DATA Last ISE calibration data is stored automatically after a successful calibration. To view the ISE calibration data, press 2nd then GLP key while in ISE measurement mode. The instrument will display the date (yyyy.mm.dd) o...

[Page 29] Hanna Instruments HI 121

29 LAST RELATIVE mV CALIBRATION DATA Last Relative mV calibration data is stored automatically after a successful calibration. To view the Relative mV calibration data, press 2nd then GLP key or simply GLP from the left keyboard (HI 121) while in Rel...

[Page 30] Hanna Instruments HI 121

30 Setup mode allows viewing and modifying the following parameters: • Calibration Alarm Time Out (pH channel only) • One-point calibration behaviour (pH channel only) • Custom buffer 1 (pH channel only) • Custom buffer 2 (pH channel only) �...

[Page 31] Hanna Instruments HI 121

31 If there is another item to be set (e.g. minutes), press MODE or / from the left keyboard. The other item will start blinking. Press the ARROW keys to change the displayed value or simply use the numerical keys for all numerical parameters. Press...

[Page 32] Hanna Instruments HI 121

32 Notes: • The custom buffers can be set only with 0.001 pH resolution. If 0.01 pH resolution is selected during calibration, the displayed custom buffer value will be a rounded one. • For calibration alarm time out, custom buffers, alarm limits...

[Page 33] Hanna Instruments HI 121

33 When in normal measurement mode: • If only “AL.LO” item is set, the instrument will beep when the reading is below alarm low value. • If only “AL.HI” item is set, the instrument will beep when the reading is above alarm high value. �...

[Page 34] Hanna Instruments HI 121

34 This feature allows the user to log pH and Rel mV or ISE and Rel mV measurements, together with temperature automatically. All logged data can be transferred to a PC through the RS232 port. The maximum logging space is 1000 record locations (sampl...

[Page 35] Hanna Instruments HI 121

35 If the LOG space is full, “FULL LOC” message will be displayed on the LCD for a few seconds with “LOG” tag blinking, and then ”FrEE 0” message. The instrument returns to normal measurement mode. AutoLOGGING The setable AutoLOG modes ma...

[Page 36] Hanna Instruments HI 121

36 TEMPERATURE CALIBRATION (for technical personnel only) To stop autologging, press 2nd then AutoLOG key again, or simply AutoLOG from the left keyboard. The instrument will display for a few seconds the lot number on the primary LCD and the sample ...

[Page 37] Hanna Instruments HI 121

37 • If RCL mode was invoked while the instrument was in ISE channel: the last ppm or Rel mV memorized reading on the primary LCD and the lot number on the secondary LCD. Note: If LOG mode was invoked while the instrument was in mV/Relative mV meas...

[Page 38] Hanna Instruments HI 121

38 AutoHOLD To freeze the first stable reading on the LCD press 2nd then AutoHOLD key, or simply AutoHOLD from the left keyboard while the instrument is in measurement mode. The “Auto” ”HOLD” tags will be displayed blinking on the LCD until t...

[Page 39] Hanna Instruments HI 121

39 A complete set of information based on the measured, set or recorded data can be printed. Data can be printed on demand (for current reading in measurement mode, GLP and SETUP modes) by pressing 2nd then Print key, or simply Print from the left ke...

[Page 40] Hanna Instruments HI 121

40 • For ISE range: When in SETUP mode, the following information can be printed: • If 2nd then Print key are the first keys pressed after entering SETUP mode, a SETUP table of contents will be printed: • When exiting SETUP mode, the instrument...

[Page 41] Hanna Instruments HI 121

41 • Press CFM to print the SETUP REPORT or CAL to escape without printing. When in SETUP mode, if pressing CAL, then Print for a chosen parameter, a help printout will come out, providing the following information (e.g. AutoLOG Interval): When in ...

[Page 42] Hanna Instruments HI 121

42 • For AutoLOG mode: Note: If selecting a different printing language, all data will be printed in the selected language. START AUTOLOG Instr ID 0002 Lot L03 Date 2004/10/15 Time 18:05:01 Interval 00:30 Slope 99.7% Sample ...

[Page 43] Hanna Instruments HI 121

43 TEMPERATURE CALIBRATION (for technical personnel only) All the instruments are factory calibrated for temperature. Hanna’s temperature probes are interchangeable and no temperature calibration is needed when they are replaced. If the temperature...

[Page 44] Hanna Instruments HI 121

44 mV CALIBRATION (for technical personnel only) • Press CFM to confirm. The instrument returns to measurement mode. Note: If the reading is not close to the selected calibration point, “WRONG” tag will blink. Change the temperature probe and r...

[Page 45] Hanna Instruments HI 121

45 PC INTERFACE Data transmission from the instrument to the PC can be done with the HI 92000 Windows ® compatible software (optional). HI 92000 also offers graphing and on-line help feature. Data can be exported to the most popular spreadsheet pro...

[Page 46] Hanna Instruments HI 121

46 SET Is equivalent to pressing SET PRT Is equivalent to pressing PRINT (HI 123 only) CLR Is equivalent to pressing CLR OFF Is equivalent to pressing OFF AHD Is equivalent to pressing AutoHOLD CHR xx Change the instrument range according with the pa...

[Page 47] Hanna Instruments HI 121

47 /MLPxxx Selects lot on pH channel. /MLIxxx Selects lot on ISE channel. ?DM Downloads the selected AutoLOG. LODPxxx Requests the xxx th pH record logged data. LODIxxx Requests the xxx th ISE record logged data. LODPALL Requests all pH Log on dema...

[Page 48] Hanna Instruments HI 121

48 pH BUFFER TEMPERATURE DEPENDENCE Temperature has an effect on pH. The calibration buffer solutions are affected by temperature changes to a lesser degree than normal solutions. During calibration the instrument will automatically calibrate to the ...

[Page 49] Hanna Instruments HI 121

49 ELECTRODE CONDITIONING & MAINTENANCE PREPARATION PROCEDURE Remove the protective cap of the pH electrode. DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal with electrodes. They will disappear when rinsed with water. During transp...

[Page 50] Hanna Instruments HI 121

50 For refillable electrodes: If the filling solution (electrolyte) is more than 2½ cm (1”) below the fill hole, add HI 7082 or HI 8082 3.5M KCl Electrolyte Solution for double junction or HI 7071 or HI 8071 3.5M KCl+AgCl Electrolyte Solution for ...

[Page 51] Hanna Instruments HI 121

51 pH CLEANING PROCEDURE • General Soak in Hanna HI 7061 or HI 8061 General Cleaning Solution for approximately ½ hour. • Protein Soak in Hanna HI 7073 or HI 8073 Protein Cleaning Solution for 15 minutes. • Inorganic Soak in Hanna HI 7074 Inor...

[Page 52] Hanna Instruments HI 121

52 PRINTER MAINTENANCE (HI 123 only) HI 123 instrument uses plain paper rolls 44 mm width. To insert a new paper roll, follow the procedure below: • For an easier insertion, cut the paper edge as shown in the next figure: • Put the paper roll on...

[Page 53] Hanna Instruments HI 121

53 TROUBLESHOOTING GUIDE SMOTPMYS MELBORP NOITULOS evissecxe/esnopserwolS .tfird .edortceleHpytriD nipitedortceleehtkaoS 03rofnoitulos1607IH naelcnehtdnasetunim .edortceleeht puetautculfsgnidaeR .)esion(nwoddna .noitcnujytrid/deggolC leveletylortcel...

[Page 54] Hanna Instruments HI 121

54 SMOTPMYS MELBORP NOITULOS syalpsidretemehT edortcelEytpme .elacsesnopseR atadhguonetoN etaulaveotelbaliava .emitesnopsereht eromnoitarbilactaepeR .ylluferac retemehtputratstA DCLllasyalpsid .yltnenamrep sisyekehtfoenO .dekcolb rodraobyekehtkcehC ...

[Page 55] Hanna Instruments HI 121

55 Typical Electrode Life Ambient Temperature 1 – 3 years 90 ºC (194 ºF) Less than 4 months 120 ºC (248 ºF) Less than 1 month Alkaline Error High concentrations of sodium ions interfere with readings in alkaline solutions. The pH at which the i...

[Page 56] Hanna Instruments HI 121

56 pH BUFFER SOLUTIONS HI 5016 pH 1.68 Buffer Solution, 500 mL bottle HI 5004 pH 4.01 Buffer Solution, 500 mL bottle HI 5068 pH 6.86 Buffer Solution, 500 mL bottle HI 5007 pH 7.01 Buffer Solution, 500 mL bottle HI 5091 pH 9.18 Buffer Solution, 500 mL...

[Page 57] Hanna Instruments HI 121

57 ORP PRETREATMENT SOLUTIONS HI 7091L Reducing Pretreatment Solution, 500 mL bottle HI 7092L Oxidizing Pretreatment Solution, 500 mL bottle pH ELECTRODES All electrodes with code ending with P are supplied with BNC & pin connectors and 1 m (3.3&...

[Page 58] Hanna Instruments HI 121

58 HI 1330P Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory, vials. HI 1332P Plastic-body (Ultem ® ), double junction, refillable, combination pH electrode. Use: general purpose. ORP ELECTRODES HI 3131P ...

[Page 59] Hanna Instruments HI 121

59 RECOMMENDATIONS FOR USERS Before using these products, make sure they are entirely suitable for the environment in which they are used. Operation of these instruments in residential areas could cause unacceptable interferences to radio and TV equi...

[Page 60] Hanna Instruments HI 121

60 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 Indon...