IN STRUC TION MANUA L Laboratory Equipment Pty Ltd email: sales@labec.com.au Ph: 02 9560 2811 • Fax: 02 9560 6131 www.labec.com.
Operation Manual for TIT-5 Automatic Potential Titrator PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION 3, Hagavish st. Israel 58817 Tel: 972 3 5595252, Fax: 972 3 5594529 mrc@mrclab.com MRC.VER.01-4.
ADVICE: Read this instruction in detail before operating the meter. The meter should be re-tested by metrological department when it is used over one year. And the meter can't be used until it is up to standard. The warranty of quality for all electrode is one year. The electrode should be changed in time after warranty no matter whether it is used, since the performance of it will be influenced.
CONTENT I. General II.Main Specifications and Performance III. Construction of the meter IV. Operation 1. Installation of the meter 2. Functions of the meter 3. Mode of titration 4. Switching on the meter 5. Feeding solution 6. Cleaning 7. Titration 7.1 Pre-titration 7.2 Preset end point titration 7.3 Mode titration 7.4 Blank titration 7.5 Manual titration 8. Settlement of titration data 8.1 Present data settlement 8.1.1 Store titration data 8.1.2 Mode of production 8.1.3 Concentration of sample 8.1.
I. GENERAL Model TIT-5 Automatic Potential Titrator is a high precision laboratory analyzer, which is mainly used in chemical analysis of college, scientific research departments, petroleum chemical industry, pharmacy, medicine inspection and metallurgy.
. Repeatability of titration analysis: 0.2% 7. Electronic unit repeatability: ≤0.2mV 8. Electronic unit stability: ±0.3mV ±1 bit/3h 9. Normal operating conditions: ambient temperature: (5.0~35.0) ℃ relative humidity: ≤80% power supply: (220±22)V, frequency: (50±1)Hz; Without disturbing by electron magnetic field except terrestrial magnetic field. 10. Outside dimensions (mm): 360×300×300 (l×w×h) 11. Weight (kg): about 10. III. CONSTRUCTION 1. Front panel of the meter Diag.
2.Rear panel of the meter a. Rear panel of control unit b. Rear panel of volume unit Diag.2 Diag.3 (18) titration socket (19) measuring socket (21) titration socket/RS232 (22) stirrer socket (24) fuse socket (25) power socket (20) printing socket (23) indicating light (26) switch c. Rear panel of potential measuring unit Diag.
3.Fittings of the meter (33)Control unit →volume titration unit special connecting line. Diag.5 (34) Control unit potential measuring unit special connecting line Diag.6 (35) Computer → TIT-5 automatic titrator special connecting line Diag.
(36) TP-40 printer special connecting line Diag.8 (37) E-201-C-9 pH combination electrode (38) Electrode sleeve (39) Q9 short circuit plug Diag.9 (40) T-818-B-6 temperature sensor Diag.
(41) Universal power line Diag.11 (42) Top sealing cap (43) Small nut (44) Protecting cover (45) Top sealing ring (46) Burette (47) Piston (48) Bottom sealing ring (49) Bottom sealing cap (50) Big nut (51) Piston pole (52) Spring washer (3 pieces) (53) Screw M3×8 (3 pieces) Diag.
IV. OPERATION 1. Installation and Connection 1.1 Installation of the meter Diag.13 a. Put volume titration unit(3) and control unit on table, put stirrer on potential measuring unit(16) according to mentioned Diag13 and insert electrode pole(10); install beaker supporter (12) and beaker(13) respectively, put stirring drop(14) into beaker(13), then tighten stirrer(15) and beaker(13) with screws(25). Diag14 b.
diagram14, then according to diagram 14, firstly take off 3 pieces of screws (M3×8) (53), 3 pieces of spring washers (52), then take off bottom sealing cap (49), bottom sealing cap (48), burette (46) and piston (47) respectively, clean the burette with distilled water repeatedly, then absorb water drops on the burette (46) with distilled paper.
Diag.16 d. Insert T-818-B-6 temperature sensor (40), take off sleeve (38) on E-201-C-9 combination electrode (37), then insert E-201-C-9 combination electrode (37), put feeding tube (2) into the bottom of solution bottle (1) all according to diagram 16. Diag.17 e. While the meter is doing titration, if you need to change solution, the beaker should be taken apart and assembled.
1.2 Connection of the meter Diag.18 Rear panel of volume titration unit Diag.19 Diag.19 Rear panel of potential measurement unit Diag.20 Rear panel of control unit a. Use control unit → volume titration unit special connecting line(33) to connect ‘titration socket’ (18) under control unit and ‘Titration Socket/RS232’ (21) under volume titration unit. b. Insert the joint of Stirrer (15) in the socket of ‘Stirrer’ under volume titration unit.
d. If the meter links up with computer, use computer → TIT-5 Automatic potential Titrator special connection line (35) to connect hole style socket with RS232 socket on computer. Separately connect the needle style socket to ‘Titration Socket/RS232’ (21) under volume titration unit and ‘Measuring socket/Rs232’ (32) under potential measuring unit. e. Insert T-818-B-6 temperature sensor (40) joint into ‘Temperature Sensor socket’ (28) under pH/mV measuring unit.
4. Switch on the Meter Use can connect TIT-5 volume titration panel, mV/pH measuring panel and control panel together to form the automatic potential titrator, following call meter in short. After mentioned panels connecting properly, switch on the meter, it can be used now. When meter is switched on, it starts self-checking and then displays ‘TIT-5’ automatic potential titrator’. After a while, the meter starts to check connected titration panel and measuring panel.
The meter shows menu on the top of screen which including ‘View’ (if there is titration data or stored data), ‘Titrate’, ‘Mode’, ‘Set’, ‘Calibrate’ etc In the middle shows measuring result such as current potential value (or PH value) and temperature value. On the right side is the press button in common use including ‘Titrate’, ‘Clean’, ‘Feed’ and at the bottom, it displays the status of titration panel, stirrer chart, electrode slope chart and system time.
At this time user can press ‘Exit’ to continue feeding or press ‘Enter’ to terminate feeding, meter returns to starting status automatically. 6. Cleaning In starting status, press ‘Clean’ button, meter displays as follows: View Titrate Mode Set Calibrate Cleaning Number of cleaning times Titrate 05 Clean Start cleaning Feed Titration panel READY Diag.26 Set number of cleaning times in titration panel User can set cleaning times at mostly 10 times.
corresponding titration, shown as follows: View Titrate Mode Set Calibrate Titration Pre-titration Preset end point titration Mode titration Blank titration Manual titration Titrate Enter Clean Exit Feed Titration mode READY Diag.28 Titration mode selection 7.1 Pre-titration mode Pre-titration mode is one of the main titration modes, many mode titration generate from pre-titration mode. Meter can find titration end automatically through pre-titration then generate special titration mode.
7.1.1 mV/pH Titration Parameter mV/pH titration parameter is used to indicate the titration is mV titration or pH titration. When user select mV titration, the current titration is mV titration, all displayed parameter are according to mV and vice versa. 7.1.
jump, middle end point jump and small end point jump. Middle end point jump can satisfy general titration demand, it's unnecessary for the users to know the concrete end point jump value or to make the concrete set, if by any chance the meter can't satisfy the titration demand, please reset corresponding end point jump value, therefore, generally speaking, that'll do if users select end point as large, middle and small.
nnnnn End Pre-titration>Titration panel READY 00:04:18 Diag.30 Display in titration When titration started, the meter will display as following diag.30 On the bottom of left corner is current potential (or pH) value and current volume of titration. On the bottom of right corner is end point area that displays the end point figure and end point value. On the bottom is the name of current titration, status of titration panel and actual titration time.
Ending volume for your setting adding is over! End titration? Enter End Exit Pre-titration>Titration panel PAUSE 00:04:18 Diag.31 Display for titration of end volume NOTE: If the meter finds that 5 pcs end points have been found, it will stop titration directly no matter whether the titration has other end points or not.
including potential, volume and differential, etc. On the bottom of right corner is end point area that displays number of end point and corresponding end point value. From here user is allowed to store titration curve, print titration result, print titration data, print titration curve, view titration parameter and time, set or cancel end point. If titration has end point, user is also allowed to generate special panel and calculate the concentration value of sample.
7.2.1 mV/Ph Parameter mV/pH titration parameter is used to indicate current titration is mV or pH titration. When user selects mV titration, current titration is mV titration and all display are according to mV. Vice versa. 7.2.2 End Point Number Parameter End point number parameter indicates the total number in current preset end point titration. Maximum is 5. 7.2.
7.2.6 Pre-control Value Switch and Value Parameter Pre-control value parameter is set for controlling titration time, it will influence the titration speed and analysis time of preset end point titration directly. Generally it is no need for user to set it but only need to tacit admit the system setting.
In Diag.34, on left side is current stored assemble mode figure and current mode symbol, on the right is relative parameter corresponding to the mode under cursor. Including Name of Mode, mV or pH Titration, Number of End Point, Mode Storing Time, Sample Volume, Titrant Concentration, End Point Value corresponding to Each End Point, Time Delay and End Point Switch (Detailed instruction and amendment of Mode Parameter are in chapter ‘View Mode’). On the top of Diag.34 is pressing button area.
7.3.9 Titrant Concentration Parameter When mode is generated, the parameter is usually set to BLANK and user should input this parameter when calculating concentration value (see 8.1.3 ‘Sample Concentration). 7.4 Blank Titration Mode This mode is suitable for the titration that demands less titrant (below 1ml). In this mode, every time the meter adds 0.02 ml of volume (users can amend this parameter), users can also set preadded volume parameter so as to make titration speed higher.
7.4.4 End Point Jump Value Parameter The same as End Point Jump Value Parameter in Pre-Titration Mode. 7.4.5 Pre-adding Volume Parameter The same as Pre-adding Volume Parameter in Pre-Titration Mode. 7.4.6 Each Adding Volume Parameter Blank titration mode is to add pre-adding volume first. When first adding finished, add the same volume each time in sequence. The adding volume every time is the adding volume after pre-adding volume. 7.4.
7.5.3 Next Adding Volume Parameter Next adding volume parameter is next adding volume after adding volume this time, this volume can be reset after anyone adding. 7.5.4 End Volume Parameter. The same as End Volume Parameter in Pre-Titration When all the above setting finished, press ‘Start Titration’ button to enter into Manual Titration. After pre-adding volume, the meter will wait for user’s next operation.
In starting status, press ‘View’ button in menu, select viewing method you need, press ‘Enter’ button to view relative titration data. Displayed as follows View Titration Mode Set Calibrate View View current data View stored data Titration Enter Clean Exit Feed TitrationDiag.38 panel READY + K Display when select viewing method 10/21 8.
In which: ‘﹤’ is moving left, ‘﹥’ is moving right, ‘1﹤’ is moving leftmost, ‘﹥1’ is moving rightmost. User could also move the indicating line to a certain position directly by pressing the position in curve display area. In which: ‘﹤﹤’ is reduce button, the graph will be reduced by pressing this button, ‘﹥﹥’ is enlarge button, the graph will be enlarged by pressing this button (get the indicating line as central). The real curve is potential-volume curve.
8.1.2 Mode of Generation After pre-titration, if necessary, user could generate titration mode. There are two ways: One is in viewing status, press ‘Mode’ button in menu, select ‘Mode of Generation’ and press ‘Enter’. The second is in starting status, when meter has not made next titration, press ‘Mode’ button, select ‘Mode of Generation’ and then press ‘Enter’ button. Meter will display ‘Titration Data Generating Mode?’ press ‘Enter’ to arrange mode of generation.
For the title of mode, user is allowed to key-in some necessary description so that user can remember the name of the mode in next input and amendment. User could key-in 20 figures mostly. One the top of the screen is title column. In the square down the title column is word symbol chart. There is a curser in the chart to indicate the position of input symbol. Press ‘﹤’ or ‘﹥’ to move curser or press title frame directly, meter will calculate automatically and move curser to relative position.
If user doesn’t input concentration of titrant and sample volume (Concentration of titrant and sample volume are all ‘BLAND’), then Concentration of Sample in ‘Concentration’ column will display as ‘BLANK’, otherwise meter will automatically calculate concentration value of sample according to the sample volume in current end point. Display as diag.43. From here, user could reset sample volume, concentration value of titrant.
Note: Before printing, user must set the type of printer, parameter of communication baud ratio and connect printer correctly. (see ‘Set Print’ chapter) 8.1.5.1 Print Titration Result Meter will print out the name of current titration, titration time, titration parameter and titration result. 8.1.5.2 Print Titration Data Meter will print out all titration data 8.1.5.3 Print Titration Curve Meter will print out titration curve according to titration curve graph. 8.1.
Print About Diag. 46 Display for Viewing Stored Data The same as the ‘Print’ function in viewing current titration data, user is allowed to select ‘Print Titration Result’, ‘Print Titration Data’ or ‘Print Titration Curve’, press ‘Print’ button in menu and select needed operation and print them out. The same as the ‘About’ function in viewing current titration data, user is allowed to view titration name, titration time, burette, burette coefficient and electrode slope of current titration. 9.
9.1 Generation of Mode When titration finished, if necessary, user could generate titration mode, please see chapter 8.1.2 Generation of Mode for details. 9.2 Viewing Mode User could view and amend relative parameter by viewing the mode generated by himself or the system mode provided by meter. In starting status, press ‘View’ in menu, select ‘Viewing Mode’ and press ‘Enter’ to view the mode. Displayed as follows: Save as Delete Titrate Calibrate Mode HC1 → Select Mode 01/02 01 Stir NaOH (0.
9.2.1 The Mode’s Save As For the research or some other purpose, the mode can be copied and generate another mode. In viewing mode, press ‘Save As’ button, the meter displays ‘Save As Current Mode’? Displayed as following Diag.49, press ‘Enter’ button, amend or key-in new name of the mode, meter will automatically copy current mode. Save as Delete Titrate Stir Calibrate Select Mode 01/02 03 Mode HC1 → NaOH (0.
9.2.3 Mode Titration User could select suitable mode according to your own need, press ‘Titration’ button, the meter will display ‘Start Mode Titration?’ press ‘Enter’ button to start mode titration Save as Delete Titrate Stir Select Mode 01/02 07 Calibrate Mode HC1 → NaOH (0.1) Ph titration Number of end point: 1 2003/06/15 00:00:00 HC1 ---﹥ Start Mode Titration? NaOH(0.1) 08 K2Cr207 ---﹥ Fe2+(0.1) Enter First end point Exit End point: PgUp PgDn sample volume 10.0mL 7.
When setting finished, meter will return to starting status. See following Diag.52 for setting of each parameter. View Titrate Mode Set Calibrate Set Stirring Speed System Time Printer Burette Titrate Enter Clean Exit Feed Titration Panel READY + K 10/21 Diag.52 Set Parameter of the meter 10.1 Set Speed of Stirring In starting status, press ‘Set’ button in menu, select ‘Stirring Speed’ and press ‘Enter’ button to set the stirring speed of stirrer.
10.2 Set System Time In starting status, press ‘Set’ button in menu, select ‘System Time’ and press ‘Enter’ to set date, time of the meter. View Titrate Mode Set Calibrate Set System Time 2003/10/29 09:22:58 Titrate 2003 10 29 09 22 58 Clean Feed Titration Panel READY + K 10/21 Diag. 54 Display of System Time In Diag.
10.3 Set Printer RS-232 interface is taken as output of the meter. Therefore, user must purchase serial printer to print titration result, titration data, titration curve etc. It is allowed to select ‘Model TP-16, TP-24 or TP-40 serial printers (to print respectively 16 alphabets, 24 alphabets, 40 alphabets each line). Since the width of printers is different, the printing form of the printers is obviously different. We suggest Model TP-40 serial printer be available.
Set burette or set burette coefficient is simple, user just need to select ‘10ml burette’ or ’20ml burette. After selecting burette, select burette coefficient, user only needs to key-in the burette coefficient marked on burette. When setting finished, press ‘Enter’ to return to starting status. 11. Electrode Calibration Before pH titration begins, electrode slope can be calibrated.
c. When pH value stable, press ‘Enter’ Button, the meter displays percentage slope. Now one-point calibration has finished. Displayed as follows: View Titrate Mode Set Calibrate Calibration/one-point calibration CaCalibration librate electrode slope finished! Electrode slope: 100.0% Enter Titrate Enter Exit Clean Feed Titration Panel READY + K 10/21 Diag.
View Titrate Mode Set Calibrate Calibration/Two-point calibration 9.18 pH 25.0 ℃ Titrate Clean Enter Exit Feed Titration Panel READY + K 10/21 Diag.62 Two-point Calibration in starting status b. When displayed pH value stable, press ‘Enter’ button, meter displays ‘Calibration finished!’ and calibrated electrode slope value, this means two-point calibration finished. Now calibration also finished. Press ‘Enter’ button to quit from calibration panel.
mV manual titration when titrate the parameter by manual, if the burette is 10ml, set pre-added volume to "10ml"; if the burette is 20 ml, set pre-added volume to "20 ml" (ensures that end volume is larger than pre-added volume), refer to diag.64 Manual Titration/Parameter setting Jump Value Set mV/pH Titration MV Titration pH Titration Pre-adding volume: 10mL First end point Jump value: Large Middle Value : Next adding: 0.2mL Ending volume: Resume Set Stir Small 100 40mL Start Titration Diag.
VI. THE COMPLETE SETS OF THE METER 1. 2. 3. 4. 5. Model T I T-5 Automatic Potentiometer Model TIT-5 Automatic Potentiometer volume titration and measuring unit Model T-818-B-6 Temperature Sensor Model E-201-C-9 pH Combination Electrode Accessories, see Packing List 1 set 1 1 1 1 VII.APPENDIX 1. pH standard buffer solution A (pH 4.00, 25℃) Weigh 10.12g of KHC 8 H 4 O 4 that has been dried under 110℃~130℃ for 2~3 hours, dissolve it in 1L of de-ion water. 2. pH standard buffer solution B (pH 6.
Pre- titration has found false end point Mode titration is not right a. find false end point b. can't find end point Setup of pretitration parameter is not suitable a. pre- titration has found false end point b. mode is selected by mistake Preset end point titration is not right a. when over two end points, after parameter is set, titration can't be made b. when titrating, display "pre-controlled point setup is not right" Stirrer doesn't work a. parameter is set by mistake b.
