Environmental Express OAKTON PH250 Instruction Manual
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Environmental Express OAKTON PH250 Instruction Manual

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  • Page 1 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
  • Page 2 Preface This manual describes the operation of the following instrument. Brand: OAKTON Series name: Water Quality Meter Model: PH250, PH260 Model description: pH/ORP Meter Be sure to read this manual before using the product to ensure proper and safe operation of the product.
  • Page 3 Regulations Regulations EU regulations Conformable standards This equipment conforms to the following standards: EMC: EN61326-1 Class B, Basic electromagnetic environment RoHS: EN50581 9. Monitoring and control instruments Warning: This product is not intended for use in industrial environments. In an industrial environment, electromagnetic environmental effects may cause the incorrect performance of the product in which case the user may be required to take adequate measures.
  • Page 4 Regulations Authorised representative in EU FCC rules FCC Compliance Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
  • Page 5 For Your Safety For Your Safety Hazard classification and warning symbols Warning messages are described in the following manner. Read the messages and follow the instructions carefully. Hazard classification This indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. This is to be limited to the most extreme situations.
  • Page 6 For Your Safety Safety precautions This section provides precautions for using the product safely and correctly and to prevent injury and damage. The terms of DANGER, WARNING, and CAUTION indicate the degree of immanency and hazardous situation. Read the precautions carefully as it contains important safety messages.
  • Page 7 For Your Safety Battery Keep batteries out of reach of children. If someone accidentally swallows a battery, consult a doctor immediately. If alkaline fluid from a battery gets into the eyes, do not rub the eyes, rinse with clean water immediately and then consult a doctor. Contact with alkaline fluid could cause blindness.
  • Page 8 Product Handling Information Product Handling Information Operational precautions (instrument) Only use the product including accessories for their intended purpose. Do not drop or physically impact the instrument. The instrument is made of solvent-resistant materials but that does not mean it is resistant to all chemicals.
  • Page 9 Product Handling Information Environmental conditions for use and storage Temperature: 0 °C to 45 °C Humidity: under 80% relative humidity and free from condensation Avoid the following conditions: Strong vibration Direct sunlight Corrosive gas environment Locations close to an air-conditioner Direct wind Transportation When transporting the instrument, repackage it in the original package box.

  • Page 10: Table Of Contents

    Contents Product Overview ............. 1 Package Content ............1 Key Features .............. 2 Product components ..........3 Basic operations ............... 7 Mode and measurement ..........9 Calibration ............... 11 pH Calibration ............11 ORP/mV Calibration ..........13 Temperature Calibration ......... 15 Data ..................

  • Page 11: Product Overview

    Product overview Product Overview This section describes the package content, key features and product components of OAKTON PH200 series Handheld meters. Package Content After opening the carry case, remove the meter and check for damage on the instrument and confirm that the standard accessories all exist. If damage or defects are found on the product, contact your dealer.

  • Page 12: Key Features

    Product overview Key Features IP67 water ingress, dust-proof, shock-resistant, anti-slip meter housing. Large monochrome LCD (50 x 50 mm) with white LED back lighting. Built-in electrode holder (up to 2 electrodes). Foldable meter stand. Simple user interface and single parameter display. 500 (for PH250) / 1000 (for PH260) data memory.

  • Page 13: Product Components

    Product overview Product components Name Function Monochrome LCD Displays the measured value Operation keys Used for instrument operation Electrode connector Connect to the BNC connector of the electrode Temperature connector (T) Connect to the temperature sensor of the electrode Battery cover Open/close to insert/remove batteries Electrode holder Hold the electrode to carry with the instrument...
  • Page 14 Product overview Display Name Function Displays the current operation mode (Setup, Calibration, Status Icon Measurement and Data mode) Parameters Displays the measured parameters like pH and RmV Stability indicator shows value is stable for documentation in Auto Stable and Auto Hold modes Appears when the measured value display is stable and fixed in auto-hold mode Temperature display...
  • Page 15 Product overview Battery level display 100% battery life 50% battery life 20% battery life Batteries are weak and need replacement. Refer BATT LOW (page 38) to solve this Electrode sensitivity level Electrode sensitivity above 95%(excellent) Electrode sensitivity between 85% to 95% (very good) Electrode sensitivity between 80% to 85%(good).
  • Page 16 Product overview Keypad operation Keypad Name Function Switches from the measurement mode to the calibration mode. CAL key Starts calibration in the calibration mode. Switches the operation mode to the measurement mode. MEAS key Releases the fixed measurement value mode in the auto hold mode and begins a new measurement.

  • Page 17: Basic Operations

    Basic operations Basic operations This section describes function and basic operation method of each part of OAKTON PH200 series Handheld meters. Turning on the instrument Inserting the batteries This instrument is operated by batteries. You can use AA alkaline batteries or AA Ni- MH chargeable batteries.
  • Page 18 Basic operations Connecting an electrode To perform calibration/ measurement, it is necessary to use the appropriate electrode for measurement parameter. Recommended electrodes for various sample are listed in our product catalog. Use the following procedure to correctly connect the electrode to the instrument: 1.

  • Page 19: Mode And Measurement

    Basic operations Mode and measurement Changing the operation mode You can change the operation mode to four available modes depending on the purpose of use. The status icon indicates the current mode. Icon Name Function Setup mode Perform various setup functions. Calibration mode Performs calibration.
  • Page 20 Basic operations Changing the measurement parameter This instrument measures multiple parameters. For measurement, an electrode corresponding to the measurement parameter is required. In the measurement mode, the measurement parameter can be changed by pressing the key. GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...

  • Page 21: Calibration

    pH calibration Calibration This section describes the basic calibration method using OAKTON PH200 series Handheld meters and pH electrode. pH Calibration Calibration is necessary for accurate pH measurement. To perform pH calibration, follow the procedure detailed below: Prerequisites Clean the pH electrode with DI (deionized) water and wipe it with tissue paper. Switch on the pH meter and plug in the pH electrode.
  • Page 22 pH calibration Calibration 5. After placing the pH electrode in the buffer solution, press the key. 6. The selected buffer standard appears on the meter screen and meter starts checking various calibration values with a blinking on screen. 7. Wait for the to stabilize (stable calibration reading).

  • Page 23: Orp/Mv Calibration

    ORP calibration ORP/mV Calibration Calibration is necessary for accurate ORP measurement. To perform ORP calibration, follow the procedure detailed below: Prerequisites Clean the ORP electrode with DI (deionized) water and wipe it with tissue paper. Switch on the pH meter and plug in the ORP electrode. Prepare buffer solution required for calibration.
  • Page 24 ORP calibration Calibration 11. After placing the electrode in the solution, press the key to switch to mV mode. 12. Press the key. 13. Meter starts reading mV values and the blinks until value stabilizes. 14. Wait for the to stabilize (stable calibration reading). 15.

  • Page 25: Temperature Calibration

    Temperature calibration Temperature Calibration Temperature calibration is required to accurately match pH electrode to the meter. Check the temperature reading and if it is acceptable, no temperature calibration is required. If you need to calibrate, please follow the procedure detailed below: Prerequisites Clean the pH electrode with DI (deionized) water and wipe it with tissue paper.
  • Page 26 Temperature calibration Calibration 18. After placing the electrode in the solution, press the key. 19. Press the key to switch to temperature calibration mode. Meter displays measured temperature value. 20. Use the keys to adjust the temperature to the required value. 21.

  • Page 27: Data

    Data capture and storage Data This section describes the basic method of data storing and transferring using OAKTON PH200 series Handheld meters. Data capture and storage In OAKTON 200 series Handheld meters, data measured by the instrument can be stored in the internal memory.

  • Page 28: Data Transfer

    Data capture and storage Data transfer Transfer data to PC Connect the instrument to a PC using the phono plug to USB cable to transfer saved data to the PC (for OAKTON PH260 only). Connect the phono jack at the instrument side to the communication port on the PC.

  • Page 29: Setup

    pH set up Setup This section describes all the setup functions available in OAKTON PH200 series Handheld meters. P1 pH setup Using P1 pH setup function of the meter, you can: Select buffer standard Set calibration alarm Erase calibration data To set the pH functions using OAKTON PH200 series Handheld meters, follow the procedure detailed below: Prerequisites...
  • Page 30 pH set up P 1.1 Buffer selection 26. Press the key, P1 PH screen appears. 27. Press the ENT key, P1.1 BUFF screen appears. 28. Press the ENT key, by default BUFF USA appears. 29. Use the keys to change the buffer standard to BUFF NIST or BUFF DIN. 30.
  • Page 31 pH set up P 1.2 Calibration alarm setup 1. Press the key, P1 PH screen appears. 2. Press the ENT key, P1.1 BUFF screen appears. 3. Press the key, P1.2 C.ALr screen appears. 4. Press the ENT key, by default DAYS ---- appears. 5.
  • Page 32 pH set up P 1.3 Erase calibration data 1. Press the key, P1 PH screen appears. 2. Press the ENT key, P1.1 BUFF screen appears. 3. Press the key, P1.2 C.ALr screen appears. 4. Press the key, P1.3 C.CLr appears. 5.

  • Page 33: P2 Data Setup

    Data set up P2 Data setup Using P2 Data setup function of the meter, you can: Set data log interval Print data log Erase data log To set the data functions using OAKTON PH200 series Handheld meters, follow the procedure detailed below: Prerequisites Switch on the pH meter.
  • Page 34 Data set up P 2.1 Data log interval setup 8. Press the key, P1 PH screen appears. 9. Press the key, P2 DATA screen appears. 10. Press the ENT key, P2.1 LOG screen appears. 11. Press the ENT key, previously set log interval appears. 12.
  • Page 35 Data set up setup P 2.2 Print data 1. Press the key, P1 PH screen appears. 2. Press the key, P2 DATA screen appears. 3. Press the ENT key, P2.1 LOG screen appears. 4. Press the key, P2.2 PrNT screen appears. 5.
  • Page 36 Data set up P 2.3 Erase data 1. Press the key, P1 PH screen appears. 2. Press key, P2 DATA screen appears. 3. Press the ENT key, P2.1 LOG screen appears. 4. Press the key, P2.2 PRNT screen appears. 5. Press the key, P2.3 D.CLR screen appears.

  • Page 37: P3 General Setup

    General set up P3 General setup Using P3 General setup function of the meter, you can: Select stability mode of the meter Set auto shut-off time Select temperature measurement Reset the meter To set the general functions using OAKTON PH200 series Handheld meters, follow the procedure detailed below: Prerequisites Switch on the pH meter.
  • Page 38 General set up P 3.1 Auto Stable, Auto Hold and Real Time mode setup Auto Stable (AS) mode - the meter shows live readings annunciator blinks until the reading is stable. Auto Hold (AH) mode - the meter locks the stable reading; annunciator blinks until reading is stable and then lights up.
  • Page 39 General set up P 3.2 Auto shut-off time setup 1. Press the key, P1 PH screen appears. 2. Press the key, P2 DATA screen appears. 3. Press the key, P3 GEN screen appears. 4. Press the ENT key, P3.1 STBL screen appears. 5.
  • Page 40 General set up P 3.3 Temperature unit setup 1. Press the key, P1 PH screen appears. 2. Press the key, P2 DATA screen appears. 3. Press the key, P3 GEN screen appears. 4. Press the key, P3.1 STBL screen appears. 5.
  • Page 41 General set up P 3.4 Reset meter (factory default) 1. Press the key, P1 PH screen appears. 2. Press the key, P2 DATA screen appears. 3. Press the key, P3 GEN screen appears. 4. Press the ENT key, P3.1 STBL screen appears. 5.

  • Page 42: P4 Clk Setup

    Clock set up P4 CLK setup Real-time clock functionality is available only for OAKTON 200 series Handheld meters. Using P4 Clock setup function of the meter, you can set: Date Time To set the clock function using OAKTON PH200 series Handheld meters, follow the procedure detailed below: Prerequisites Switch on the pH meter.
  • Page 43 Clock set up P 4.1 Date setup 11. Press the key, P1 PH screen appears. 12. Press the key, P2 DATA screen appears. 13. Press the key, P3 GEN screen appears. 14. Press the key, P4 CLK screen appears. 15. Press the ENT key, P4.1 DATE screen appears.
  • Page 44 Clock set up P 4.2 Time setup 1. Press the key to switch to the setup mode, P1 PH screen appears. 2. Press the key, P2 DATA screen appears. 3. Press the key, P3 GEN screen appears. 4. Press the key, P4 CLK screen appears.

  • Page 45: Maintenance And Storage

    Maintenance and storage Maintenance and storage This section describes maintenance of OAKTON PH200 series Handheld meters, pH and ORP electrodes used with the meter. Maintenance contract Please contact your dealer for the product maintenance contract. Maintenance and storage of the instrument How to clean the instrument If the instrument is dirty, wipe it gently with a soft dry cloth.

  • Page 46: Maintenance And Storage Of Ph And Orp Electrodes

    Maintenance and storage Maintenance and storage of pH and ORP electrodes This section describes an overview of the procedures for maintenance and storage of pH electrode. How to clean the electrodes When the tip of an electrode (responsive membrane and liquid junction) becomes dirty, the response time may slow or an error may occur in the measurement results.
  • Page 47 Maintenance and storage Daily storage of the electrodes If the electrode becomes dry, the response will be slow. Store in a moist atmosphere. Follow the steps below to properly store the electrode: 12. Wash the electrode well with pure water (or deionized water) to remove sample completely, and close the internal solution filler port.

  • Page 48: Error Messages And Trouble Shooting

    Error messages and trouble shooting Error messages and trouble shooting Error message This section describes the causes of typical errors and the actions to be taken to resolve respective errors. If ERR is displayed while you are using the instrument, check the error, its cause and action to be taken in the error list below: Meter display ERR description...
  • Page 49 Error messages and trouble shooting Trouble shooting his section describes causes and actions to take for problems that customers frequently ask. The indicated value fluctuates < Problem with the electrode > Cause How to solve problem The electrode is dirty. Clean the electrode.
  • Page 50 Error messages and trouble shooting The response is slow Cause How to solve problem The electrode is dirty. Clean the electrode. The electrode is broken. Replace the electrode. It is important to select an electrode that is appropriate for the sample. Consult your dealer. To The response of electrode is affected confirm an electrode that is appropriate for the by the sample solution.
  • Page 51 Error messages and trouble shooting How to check for instrument defect Short the metal part of the outer tube to the center pin of the electrode connector of the corresponding channel of the instrument. If Ur or Or appears in this condition, consult your dealer. Repeatability of the measured value is poor.

  • Page 52: Appendix

    Technical note Appendix Appendix 1 This section describes technical information and option for OAKTON PH200 series Handheld meters. pH calibration can be performed according to several buffer standards. The most common standard is the US buffer standard. The default setup for the OAKTON PH200 series Handheld meters is US buffer standard.
  • Page 53 Technical note < NIST > Temp. (°C) pH 1.68 pH 4.01 pH 6.86 pH 9.18 pH 12.46 1.67 4.00 6.98 9.46 1.67 4.00 6.95 9.39 13.25 1.67 4.00 6.92 9.33 13.03 1.67 4.00 6.90 9.27 1.68 4.00 6.88 9.22 12.64 1.68 4.01 6.86...
  • Page 54 Printout summary Appendix 2 Printer format - Measurement Meter Model : OAKTON PH260 Serial Number : 123456789 SW Revision : 1.00 Date : 20 Aug 2018 Time : 10:10:28 Mode : pH : 7.00 pH : 0.0 mV Temperature : 25.0 C (MAN) Electrode Status : Excellent User Name...
  • Page 55 Printout summary Relative mV Meter Model : OAKTON PH260 Serial Number : 123456789 SW Revision : 1.00 Date : 20 Aug 2018 Time : 10:10:28 Mode : R. mV R. mV : 3.0 mV Offset : -3.0 mV Temperature : 25.0 C (MAN) User Name Signature Printer format - Data log...
  • Page 56 Printout summary Printer format - Calibration Meter Model : OAKTON PH260 Serial Number : 123456789 SW Revision : 1.00 Date : 20 Aug 2018 Time : 10:10:28 Calibration data Cal Date : 20 Jun 2018 Cal Time : 10:10:10 Cal Points : 4.01, 7.00, 10.01 Offset : 0.0 mV...
  • Page 57 Specifications Appendix 3 PH250 PH260 Model pH/ORP/Temp (°C/°F) pH Range -2.00 to 16.00 pH Resolution 0.01 pH Accuracy ±0.01 pH Calibration Points USA & NIST (Up to 5), DIN (Up to 6) pH Buffer Groups USA, NIST, DIN ORP Range ±2000 mV Resolution 0.1 mV (<...
  • Page 58 Specifications Approx. 260 g (with batteries) / Weight 216 g (without batteries) GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
  • Page 59 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...

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