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Pyxis SP-710 Operation Manual

Water multimeter
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SP-710 Water Multimeter
Operation Manual
Jan. 23, 2019
Rev. A
US Patent: 9612221
Pyxis Lab, Inc.
1729 Majestic Dr. Suite 5
Lafayette, CO 80026 USA
www.pyxis-lab.com
© 2017 Pyxis Lab, Inc.
Pyxis Lab Proprietary and Confidential

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Summary of Contents for Pyxis SP-710

  • Page 1 SP-710 Water Multimeter Operation Manual Jan. 23, 2019 Rev. A US Patent: 9612221 Pyxis Lab, Inc. 1729 Majestic Dr. Suite 5 Lafayette, CO 80026 USA www.pyxis-lab.com © 2017 Pyxis Lab, Inc. Pyxis Lab Proprietary and Confidential...
  • Page 2 Module Warranty Term The Pyxis warranty term for the pH/ORP module is six (6) months ex-works. This is a consumable module to SP-710 and SP-710B and will require scheduled replacements. Pyxis Lab recommends replacement of this module on a basis of every 9-12 months for preventative maintenance.

  • Page 3: Table Of Contents

    Dual Function Seal for the pH/ORP Cell ..................7 Using the Pyxis SP-710 ........................8 Battery Installation ........................8 Turning the SP-710 ON and OFF ....................9 Turn on the pH/ORP Module Power ..................... 9 Using the SP-710 Control Keys ....................10 Multiple Parameter Measurement ....................
  • Page 4 Bluetooth Pairing Your pH/ORP Module to SP-710 ..............27 10 Bluetooth Connection of SP-710 to Devices ................27 11 Calibrate ST-500 with SP-710 ....................28 12 REGULATORY APPROVAL ......................30 13 Appendix. Cleaning Kit ......................31 Pyxis SP-710 Multimeter Operation Manual...

  • Page 5: Introducing The Pyxis Sp-710 Multimeter

    1 Introducing the Pyxis SP-710 Multimeter The Pyxis SP-710 is a handheld multimeter that measures five key parameters. It is a cuvette-less device. Less than 5 ml water sample is needed to fill the two sample cells for the measurement.

  • Page 6: Specifications

    Verify that all items listed on the packing slip are included. If any items are missing or damaged, please contact Pyxis Customer Service at service@pyxis-lab.com. During shipping and storage after production, a sponge wetted with the KCl based pH storage solution is placed in the pH/ORP cell.

  • Page 7: Optional Accessories

    1.5 Optional Accessories The following optional accessories can be ordered from Pyxis Customer Service, order@pyxis-lab.com or Pyxis EStore at www.pyxis-lab.com/shop Accessory Item number Replacement pH/ORP Module - Bluetooth 50315 Carrying Case for SP-710 MA-700 100 ppb PTSA + 1000 S/cm (KCl) combined standard...

  • Page 8: Using The Pyxis Sp-710

    2 Using the Pyxis SP-710 2.1 Battery Installation The main module of the SP-710 is powered by four AA alkaline batteries. Typical battery life is 10,000 measurements, or 10 months. When the battery capacity is critically low, the SP-710 displays a LOW BATTERY warning for five seconds, and then automatically turns off.

  • Page 9: Turning The Sp-710 On And Off

    2.2 Turning the SP-710 ON and OFF To turn on the SP-710: Press the OK key momentarily and release. To turn off the SP-710: Press and hold the OK key for three seconds. Release the OK key when the LCD display turns off.

  • Page 10: Using The Sp-710 Control Keys

    2.4 Using the SP-710 Control Keys The SP-710 has three control keys, as shown in Figure 3. The left ( < ), right ( > ), and OK keys are used to launch actions indicated on the LCD screen directly above the keys. Note that the LCD screen is not a touch-enabled device;...

  • Page 11: Ph And Orp Measurement

    SP-710 had been equilibrated (stored). The values will be displayed in white with a blue background if a stable value is reached (Figure 3). For a sample with conductivity in the range of 100 to 6000 S/cm, the measured value should be stabilized in the range of 98–102 to 5940–6060 S/cm, respectively.

  • Page 12: Temperature Measurement

    TMB reagent dissolves and reacts with free chlorine in the sample to form a yellow solution. The SP-710 measures the absorbance value of the resulted yellow solution to determine the free chlorine concentration. NOTE - Pyxis Lab is finalizing development of a Total Chlorine pipette (TMB method).
  • Page 13 RECORD FINAL VALUE as ppm FREE CHLORINE. Figure 8. Colorimetric screen for chlorine measurement Figure 9. Zero on sample before reagent step Figure 10. Withdraw sample to the reagent pipette and TMB Free Chlorine Pipette (Part #31053 -100/pack) Pyxis SP-710 Multimeter Operation Manual...

  • Page 14: Conductivity Temperature Compensation

    The temperature-compensated conductivity value is a would-be value at the reference temperature C, while the pH value displayed by the SP-710 is the true pH value at the sample temperature. Pyxis SP-710 Multimeter...

  • Page 15: Orp Measurement Principle

    If the ORP value of the standard is referenced to the standard hydrogen electrode (SHE), the ORP value reported by the SP-710 is SHE-based, i.e., in the unit of Eh. If the ORP value of the standard is referenced to the Ag/AgCl (3M KCl) electrode, the ORP value reported by the SP-710 is referenced to the same, commonly noted as (Ag/AgCl, 3M KCl).

  • Page 16: Ptsa Standalone Calibration (2 Point With Zero)

    Note: In an emergency, “non-PTSA” water, such as city water, can be used. 2. Power the SP-710 on by pressing the OK key. Allow 5-10 seconds for meter to stabilize. 3. A screen like Figure 11 appears. The unit is actively reading and displaying both PTSA and Conductivity.
  • Page 17 Cond (conductivity) calibration. Press OK to start the calibration procedure. The default conductivity calibration screen is the Combined Calibration (Figure 13). This will calibrate both Conductivity (at 1000 µS) and PTSA (at 100 ppb) when using the Pyxis PTSA- 1010C combined standard.

  • Page 18: Standard Conductivity Calibration (500, 1000, 2500, Or 5000 Μs)

    3. Press Calib (the > key) to launch the calibration selection screen (Figure 11). Press Calib again to select Cond (conductivity) calibration. Press OK to start the calibration procedure. A screen like Figure 16 appears. This is the default combined Calibration mode, which requires the Pyxis combined standard.

  • Page 19: User-Defined Conductivity Calibration Procedure

    3. Press Calib to launch the calibration selection screen (Figure 11). Press Calib again to select Cond (conductivity) calibration. Press OK to start the calibration procedure. A screen like Figure 16 appears. This is the default combined Calibration mode, which requires the Pyxis combined standard.

  • Page 20: Ph And Orp Calibrations

    Figure 24 Figure 25 5 pH and ORP Calibrations The commonly used pH 4.00, 7.00, and 10.00 buffer standards can be used to calibrate the SP-710 pH measurement. Unlike the pH calibration, ORP calibration procedure and the calibration standards are not standardized by the industry or government institutions.

  • Page 21: Ph Electrode Calibration

    5.1 pH Electrode Calibration The SP-710 software is designed to provide a flexible calibration procedure. You can start with the one-point pH 7 calibration and progressively add a second point and a third point calibration with the pH 4 buffer and the pH 10 buffer. This allows you to choose a procedure based on the need of measurement accuracy and the target pH range.

  • Page 22: Orp Calibration

    Press + or – to select an ORP value to match your ORP standard. Press Calib to complete the calibration. Figure 29 The ORP scale of the SP-710 depends on the ORP scale of the calibration standard. For example, if the value of 220 mV for the common Zobell’s standard at 25 C is entered in the above calibration, the ORP value reported by the SP-710 after calibration is referenced to the Ag/AgCl(3M KCl) scale.

  • Page 23: Chlorine Calibration

    4. Click Timer, the SP-710 will start the 2-minute timer. 5. The SP-710 will continuously display the free chlorine concentration, please click Stop to stop measurement if the real-time readings remains steady or wait for the 2-minute timer to time out.

  • Page 24: Chlorine Slope Calibration

    4. Click Timer, on the SP-710 to start the 2-minute timer. 5. The SP-710 will continuously display the free chlorine concentration, please click Stop to stop the measurement if the real-time reading remains steady or wait for 2-minute timer to complete.

  • Page 25: Device Maintenance

    • Do not expose the SP-710 to an extreme high or low temperature condition such as leaving the meter inside an unattended automobile. The pH electrode can survive a few short period...

  • Page 26: Replacing The Ph/Orp Module (Part #50313)

    9 Replacing the pH/ORP module (Part #50313) 9.1 Module Replacement The pH/ORP module in the SP-710 can be replaced when the original module reaches the end of its working life. Pyxis offers a 6-month warranty on the pH/ORP module. Pyxis recommends replacing the module at a frequency of every 9-12 months as a best practice.

  • Page 27: Bluetooth Pairing Your Ph/Orp Module To Sp-710

    10 Bluetooth Connection of SP-710 to Devices The Pyxis SP-710 can be connected to a smart phone or a computer via the built-in Bluetooth Low Energy Connection (BTLE). The uPyxis© app for smartphone is available for free download to both Apple and Samsung devices per QR codes below.

  • Page 28: Calibrate St-500 With Sp-710

    11 Calibrate ST-500 with SP-710 The SP-710 can be used to verify the result of inline Pyxis ST-500 and other probes by measuring the sample water taken from the inline probe sample line. The SP-710 can then be used to calibrate the inline probes over the Bluetooth connection.
  • Page 29 ST-500 to approach the calibrated reading, and the three verifying readings may not be exactly the same as the value measured by the SP-710 (as demonstrated in Figure 44). Press Read again to take more readings from the ST-500 if necessary.

  • Page 30: Regulatory Approval

    12 REGULATORY APPROVAL United States The SP-710 sensor has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.

  • Page 31: Appendix. Cleaning Kit

    13 Appendix. Cleaning Kit Pyxis SP-710 Multimeter Operation Manual...

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