Thank you for choosing Apera 9500 Premium Series Benchtop pH/Conductivity Meter. Before using this product, please read this manual carefully. 9500 Series Benchtop Meter is an outstanding combination of advanced electronic technology, sen- sor technology and intuitive software design, made for laboratory pH and conductivity measurement in scientific research and quality control, fully meeting GLP (Good Laboratory Practice) standards.
2. Technical Specifications 2.1 Technical Parameters Range -2.000 to 20.000 pH Resolution 0.1/0.01 /0.001pH Accuracy ±0.002 pH ±1 digit Temp. Compensation Range 0 to 100°C (auto. or manual) PH9500 Calibration Points 1 to 5 points PC9500 Buffer Series Options USA, NIST, CH, and User-defined Range ±2000.0mV Resolution...
2.2 Other Technical Parameters Data Storage PH9500/EC9500: 1000 sets; PC9500: 2000 sets Others Power Supply DC9V/600mA Dimensions and Weight Meter: (360×235×100) mm / 1.7kg 3. Meter Introduction 3.1 Main Interface Diagram-1 is the complete pH measurement interface. Diagram-1 ① ⑪ Measurement Mode Measurement Unit ②...
3.2 Measurement Interfaces pH Measurement Interface applicable models: PH9500/PC9500 ① — pH measurement mode ② — pH measurement ③ — mV value of pH electrode ④ — completed pH calibration(s) ⑤ — Temperature measurement ⑥ — Stable reading ⑦ — Date and time mV (ORP) Measurement Interface applicable models: PH9500/PC9500 ①...
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Salinity Measurement Interface applicable models: EC9500/PC9500 ① — Salinity measurement mode ② — Salinity measurement ③ — Salinity type (see section 7.8) ④ — Temperature measurement ⑤ — Stable reading ⑥ — Date and time Resistivity Measurement Interface applicable models: EC9500/PC9500 ①...
3.3 Keypad Diagram-2 3.3.1 Keypad Operation Short press — Press key and hold for 1 second Long press — Press key and hold for more than 2 seconds Table -1 Keypad operations and functions Keypad Operation Functions Short press Power on/off Press to switch among different measurement modes: Ը...
Ը In measurement mode: press to enter parameter set-up main menu; Ը In calibration mode: press to perform calibration; Ը In main menu: press to enter submenu; Short Press Ը In submenu: press to enter parameter set-up; Ը In parameter set-up mode: press to confirm parameter; Ը...
3.4 Meter Sockets Diagram-4 Table - 2 Meter Sockets Information Socket Type Information ① Connect pH, ORP, or Ion electrode ② Ф2 power supply Connect magnetic stirrer ③ Connect temperature sensor (for pH) ④ Connect printer ⑤ Connect PC ⑥ Ф4 banana Connect reference electrode ⑦...
3.5 Reading Mode 3.5.1 Stable Reading Mode When reading is stable, shows up. If you don’t see the smiley face or it’s flashing, it means the reading is not fully stabilized and it’s not the right timing to record or calibrate. 3.5.2 Auto.
3.6 Meter Installment 3.6.1 Connect the Test-Bench Before installment After installment Test-Bench Meter Stirrer cable Connecting board Diagram-5 3.6.2 Install the Flexible Electrode Holder Align the hole and bar, then press down firmly as shown in Diagram-6. Diagram-6 3.6.3 Connect the Electrodes 3.6.4 Open the Refilling Hole Connect the electrodes to Before measuring or calibrating, open the blue...
3.7 Magnetic Stirrer Operation 3.7.1 Technical Specifications Speed Range 0 to 2300 RPM (no load) Working area diameter Ф100mm Max. stirring volume 1000mL 3.7.2 Operation a) Insert the stirrer cable to the corresponding sockets in meter and stirrer. b) Short press to power on stirrer, will show up on the top of the display.
4.3 Parameter Settings 4.3.1 Main Menu and Sub-menu pH sub-menu Main Menu Conductivity/TDS sub-menu Data management Sub-menu Settings Sub-menu Diagram-9 - 16 -...
4.3.2 Operation For detailed operation, please follow the instruction at the bottom of screen. 4.3.3 Parameter Settings Content Main Serial Parameter Setting content Default Info menu number USA/NIST/CH/User- Refer to section pH buffer standard defined 5.1.1 Resolution 0.001/0.01/0.1 0.01 Refer to section Calibration info View/Print Check...
There is a confidential envelope comes with the meter that has a set of “super password”. Please make sure to properly save it. In case you forget your password, you can use this super password to unlock it. If you lose the super password, please contact Apera Instruments to retrieve it. 4.5 Virtual Keyboard Ը...
5. pH Measurement 5.1 About pH Calibration 5.1.1 Standard pH Calibration Buffer Solutions The meter has 3 series of standard pH buffers: USA, NIST, and CH; plus User-defined buffers. Users can make the selection in parameter setting 1.1 (buffer solution standard). The 3 standard series are as shown in Table-3.
5.1.3 Calibration Frequency The frequency that you need to calibrate your meter depends on the tested samples, condition of electrodes, and the requirement of the accuracy. For High-Accuracy measurement (≤ ±0.02pH), the meter should be calibrated before test every time; For general-accuracy measurements (≥±0.1pH), once calibrated, the meter can be used for about a week or longer.
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Table-5 pH Meter 3-point Calibration 1. Long press to enter calibration mode. Rinse off the electrode with distilled or deionized water. Shake-dry or dry with filter paper or Kimwipe. Then insert the electrode into 7.00 pH buffer. Press to continue. 2.
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5. When pH 4.00 is calibrated, the 4.00 icon will show up at the bottom left corner. The meter will automatically enter the next point of calibration. Rinse off the electrode with distilled or deionized water. Shake-dry or dry with filter paper or Kimwipe. Then insert the electrode into 10.01 pH buffer.
5.3 User-defined Calibration (take 2.00 pH and 7.30 pH as an example) Table-5 pH Meter 3-point Calibration 1. In parameter setting 1.1, select User, press to confirm. Then press to go back to measurement mode. 2. Long press to enter calibration mode.
6. After 7.30 pH is calibrated, the meter will display calibration record for a few seconds and go back to measurement mode. The calibration icons of 2.00 and 7.30 will show up at the bottom left. Note that in User-defined calibration, the icons are in black. Notes a) The meter can perform 1 to 2 points of User-defined calibration.
Table-7 pH Self-Diagnosis Information Message Detailed information How to fix 1. Check if pH buffer is correct (1st point must be 7.00 or 6.86). 2. Check if pH buffer is in good quality (fresh and clean). Incorrect pH buffer, exceeding the Buffer error meter’s recognizable range.
5.6 About pH Measurement 5.6.1 pH Stability Criterion pH stability criterion refers to the time it takes for pH readings to stabilize, which is related to the ion concentration (iconic strength) of test samples. Generally, the higher the ion concentration, the faster the readings get stabilized.
● Min-Max alarm If the reading is lower than the minimum value or higher than the maximum value, reading alarm goes off. For example, if minimum value is set to 6.50 pH, and maximum value is set to 7.60 pH, when measurement is lower than 6.50 pH or higher than 7.60 pH, shows up, and the buzzer makes a beep.
5.7.3 Cleaning The meter is only as accurate as the electrode is clean. Always thoroughly rinse off the electrode before and after each measurement with distilled water or deionized water in a container or with a wash bottle. To remove excessive water, just shake them off or blot dry with Kimwipe or lint-free cloth. Never rub the glass membrane of the electrode.
7. Conductivity Measurement 7.1 Conductivity Electrode Information 7.1.1 Default Electrode The instrument is equipped with 2401T-F conductivity electrode, the cell constant K=1.0, and the built-in temperature sensor enables automatic temperature compensation. The BNC plug of the electrode is connected to the Cond socket; the RCA plug is connected to the Temp socket. After the conductivity electrode is immersed in the solution, it should be stirred for a few times and then placed still to eliminate the bubble interference, so that the reading will be fast and stable.
7.2.2 Calibration Frequency a) The meter has been calibrated before leaving factory and can be used directly by the user. b) It is recommended to calibrate once a month under normal circumstances. c) If the accuracy requirement is high or the measured temperature is significantly different to the reference temperature (25 °C), it is recommended to calibrate once a week.
7.2.6 Temperature Compensation Coefficient The temperature compensation coefficient of the factory setting is 2.00%/°C, but the conductivity temperature compensation coefficients of different kinds and different concentration solutions are different. Users can refer to Table-11 and the data obtained from experiments. Set the setting in 2.6 (temperature compensation coefficient).
7.3 How to Perform Conductivity Calibration (Take 1413μS/cm as an example) 1. Long press to enter calibration mode. Rinse off the electrode with distilled or deionized water. Shake-dry or dry with filter paper. Press to continue. 2. Insert the electrode to 1413μS/cm solution. Stir gently and let it stand still.
7.4 User-defined Calibration (Take 10μS/cm as an example) 1. In parameter 2.2, select “user”, press to confirm. Then press to return to measurement mode. 2. Long press to enter calibration mode. Rinse off the electrode with distilled or deionized water. Shake-dry or dry with filter paper.
7.5 Self-Diagnosis The meter has a self-diagnosis function for conductivity. When the electrode is not working proper- ly, calibration solutions are incorrect, or operation is incorrect, relevant information will pop up at the bottom of the display as shown in Diagram-19. At the same time, the buzzer will make two beeps. For detailed information of self-diagnosis, refer to Table-12.
7.6 Sample Measurement Rinse the conductivity electrode with distilled or deionized water. Shake-dry or dry with filter paper. Insert it to sample solution, stir a few seconds and let it stand. Record the reading when shows up and stays on screen. Diagram-20 is the flowchart for conductivity calibration and measurement. Insert the electrode to 84 μS solution, 1-pt Long press...
7.8 Salinity Types The salinity types are linear salinity, NaCl salinity and saltwater salinity. The linear salinity is cal- culated according to the measured conductivity value (0.5 conversion factor). The NaCl salinity and saltwater salinity are programmed based on their pre-determined salinity curves. The salinity type can be set in parameter setting 2.8 and the meter is factory set to “linear”...
8. Data Processing Modes (Save, Recall, Print, Delete) 8.1 Data Processing Flowchart The data storage has three modes: “memory”, “printer” and “computer”, as well as “manual” and “auto. timing” data logging modes. Diagram-22 is a flowchart explaining various storage and data logging modes.
8.2 Log Data in Meter 8.2.1 Setup Select Memory in parameter setting 3.1. displays on top of the screen. All data will be stored in the meter. 8.2.2 Data Storage The PH9500 and EC9500 models has a storage capacity of 1000 sets, and the PC9500 can store 2000 sets.
(b) Auto. timing data logger Select “Timer” in parameter setting 3.2 and set the data logging interval time (by every X seconds or minutes), for example, 10 seconds, press to start auto. data logger, flashes, the first set of measurement data is stored and shows up, then every 10 seconds one set of data will be stored and the storage number will be automatically increased.
8.3.3 Printer Information (a) Complete Format Selecting “Complete” in parameter setting 3.3 to use the complete printing format. The printing information includes device information, calibration information, and measurement data. The device information refers to the instrument model number, serial number, electrode ID, company name, and operator ID;...
8.4 Data Logging via PC 8.4.1 Install Software a) This instrument uses the PC-Link 9500 communication software, and the communication port is USB. Copy the PC-Link 9500 program files to the computer from the flash drive, connect the USB communication cable to the PC socket of the meter and the computer’s USB port. The software will be automatically open.
8.4.3 Operation Keys of PC-Link Refresh — When the meter and the computer are not connected, press the button to connect again. Download — Upload the data in the meter’s memory to the computer. SyncTime — Sync the time and date of PC to the meter. Clear —...
10. Accessories Model Name Information Printer×1, power adapter×1, data cable×1, printer TH192G Pin-type mini printer ribbon×2, printing paper×2 TH5740 Printing paper 14 rolls per box CRC-09 Printer ribbon 5 pieces per box For general water solutions. Built-in temp. sensor, ATC LabSen 213 pH/temp.
We warrant this instrument to be free from defects in material and workmanship and agree to repair or replace free of charge, at option of APERA INSTRUMENTS, LLC, any malfunctioned or damaged product attributable to responsibility of APERA INSTRUMENTS, LLC for a period of THREE YEARS (SIX MONTHS for the probe) from the delivery.
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