Pyxis SP-700 Operation Manual
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Pyxis SP-700 Operation Manual

Water multimeter
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SP-700 Water Multimeter
Operation Manual
March 10, 2018
Rev. C
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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  • Page 1 SP-700 Water Multimeter Operation Manual March 10, 2018 Rev. C 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 The information contained in this manual may be confidential and proprietary and is the property of Pyxis Lab, Inc. Information disclosed herein shall not be used to manufacture, construct, or otherwise reproduce the goods described. Information disclosed herein shall not be disclosed to others or made public in any manner without the express written consent of Pyxis Lab, Inc.

  • Page 3: Table Of Contents

    Table of Contents Introducing the Pyxis SP-700 Multimeter ..................4 Features of the Pyxis SP-700 Multimeter ..................4 Specifications ..........................5 Unpacking the Pyxis SP-700 Multimeter ..................5 Standard accessories ........................5 Optional accessories ........................6 Dual function light shield ......................6 Using the Pyxis SP-700 ........................7...

  • Page 4: Introducing The Pyxis Sp-700 Multimeter

    Free Chlorine – TMB Method (Separate Instructions Document Available from Pyxis) The SP-700 is a cuvette-less device and has two sample cells. Less than 5 ml water sample is needed to fill the cells for measurement of the five parameters.

  • Page 5: Specifications

    Remove the instrument and accessories from the shipping container and inspect each item for any damage that may have occurred during shipping. 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.

  • Page 6: Optional Accessories

    Introducing the Pyxis SP-700 Multimeter 1.5 Optional accessories The following optional accessories can be ordered from Pyxis Customer Service, service@pyxis-lab.com: Accessory Item number Carrying case for SP-700 MA-700 100 ppb PTSA + 1000 S/cm (KCl) combined MA-1010C standard 220 mV ORP calibration standard...

  • Page 7: Using The Pyxis Sp-700

    2 Using the Pyxis SP-700 2.1 Battery installation The SP-700 is powered by four AA alkaline batteries. Typical battery life after replacing a new battery set is 10,000 measurements, or 10 months. When the battery capacity is critically low, the SP-700 displays a LOW BATTERY warning for five seconds, and then automatically turns off.

  • Page 8: Using The Sp-700 Control Keys

    2.2 Using the SP-700 control keys The SP-700 has three control keys, as shown in Figure 3. The left ( < ), right ( > ), and OK keys are used to launch an action indicated on the LCD screen directly above the keys. Note that the LCD screen is not a touch-enabled device;...

  • Page 9: Turning The Sp-700 On And Off

    2.3 Turning the SP-700 on and off To turn on the SP-700: Press the OK control key momentarily and release. To turn off the SP-700: Press and hold the OK key for three seconds. Release the OK key when the LCD display turns off.

  • Page 10: Conductivity Temperature Compensation

    Ag/AgCl reference electrode. Potassium chloride (KCl) electrolyte filling gel is sealed in the Ag/AgCl electrode. The amount of reference electrolyte in the SP-700 is significantly larger than that used in a common laboratory pH electrode. This reduces the chance of the filling solution being diluted or contaminated and increases the electrode life.

  • Page 11: Orp Measurement

    If the ORP value of the standard is referenced to the standard hydrogen electrode (SHE), the ORP value reported by the SP-700 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-700 is referenced to the same, commonly noted as mV (Ag/AgCl, 3M KCl).

  • Page 12: 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-700 on by pressing the OK key. Allow 5-10 seconds for meter to stabilize. 3. A screen like Figure 4 appears. The unit is actively reading and displaying both PTSA and Conductivity.
  • Page 13 Calibrating the SP-700 Figure 5 5. Press the key labeled Zero (the < control key) to set the zero point. 6. After successful zero set, a checkmark symbol appears next to Click Zero Button to confirm success. The screen also updates to show the Slope steps, as in Figure 6. The Cycle command replaces the Zero command on the black bar, and the possible PTSA selection is displayed in red.
  • Page 14 Calibrating the SP-700 8. If the 100 ppb PTSA default is not the desired PTSA for calibration, press the key labeled Cycle (the < control key) to cycle among the PTSA standards 100-200-300 ppb. The value in red updates as the setting is changed. Ensure that the value selected matches the standard actually present.

  • Page 15: Conductivity Calibration

    Figure 8 4.2 Conductivity Calibration 4.2.1 Combined calibration procedure The combined 100 ppb PTSA and 1000 µS calibration requires the Pyxis PTSA-1010C PTSA/Combined standard. This procedure calibrates both PTSA and conductivity with the single standard PTSA-1010C. 1. Rinse sample cell with Combined Standard and close the light shield.
  • Page 16 Calibrating the SP-700 3. Press the key labeled C-Cal (the > key). The default conductivity calibration screen appears (Figure 10), the Combined Calibration. This will calibrate both Conductivity (at 1000 µS) and PTSA (at 100 ppb) when using the appropriate Combined Standard.

  • Page 17: Standard Conductivity Calibration (500, 1000, 2500, Or 5000 Μs)

    Calibrating the SP-700 Figure 12 6. After successful calibration, press and hold the Calib key for three seconds to return to the basic read screen (Figure 9). 4.2.2 Standard conductivity calibration (500, 1000, 2500, or 5000 µS) Example based on 1000 µS: 1.
  • Page 18 Calibrating the SP-700 Figure 13 5. Press the key labeled C-Cal (the < key). A screen similar to Figure 14 appears. This is the default Conductivity Calibration mode, which is a Combined Calibration (see section 4.2.1 ). Figure 14 6. Use the > key to cycle to the desired calibration, for example, 1000 µS. The Standard Conductivity selections are 500, 1000, 2500, and 5000 µS.
  • Page 19 Calibrating the SP-700 Figure 15 7. Press the key labeled Calib (the OK key) to confirm the specific Conductivity calibration desired. The screen updates as shown in Figure 16. Figure 16 8. To start the calibration, press the OK key.

  • Page 20: User-Defined Conductivity Calibration Procedure

    Calibrating the SP-700 Figure 17 10. After successful calibration, press and hold the key labeled Calib (the OK control key) for three seconds, to return to the basic read (measurement) screen. Return to Read mode is not automatic, except through a power-off cycle.
  • Page 21 Calibrating the SP-700 5. A screen like Figure 19 appears. The normal default Conductivity Calibration mode is the Combined Calibration but is easily changed to the other Calibration modes as desired. Figure 19 6. Use the < or > keys to cycle to the User Defined calibration. With each press various elements of the display update, such as the calibration title, the type (“Target”), and the...
  • Page 22 Calibrating the SP-700 Once the value is as desired, press Set (the OK control key) to confirm the numeric value to be used. Ensure that the selected value matches the standard being calibrated with. The black bar updates as in Figure 21 (it now shows Calib rather then Set). Press Calib (the OK control key).

  • Page 23: Ph And Orp Calibrations

    We recommend that you use Zobell’s ORP standards to calibrate the SP-700 and pay attention to the reference electrode on which the ORP value is referenced. The reference information must be specified by the standard supplier.

  • Page 24: Second-Point Calibration

    When the one-point pH 7 calibration is complete, press the Exit key to exit, or continue to the pH 4 or pH 10 calibration. If a second buffer is added into the cell, the SP-700 automatically determines the buffer pH and displays the determined buffer pH value for confirmation.

  • Page 25: Third-Point Calibration

    Press the Calib key to complete the third-point calibration. A checkmark after Click pH-10 is displayed if the calibration succeeds. Otherwise a warning message is displayed. Press Exit to finish the final calibration process. Figure 27 Pyxis SP-700 Multimeter Operation Manual...

  • Page 26: Orp Calibration

    Press + or – to select an ORP value to match your ORP standard. Press Calib to complete the calibration. Figure 28 The ORP scale of the SP-700 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-700 after calibration is referenced to the Ag/AgCl(3M KCl) scale.

  • Page 27: Device Information And Diagnosis

    Press the key labeled Diagnosis to switch to the Diagnosis screen where raw measurement data are displayed (Figure 30). (The information has no use for normal operation.) Provide an image of both the device information screen and the diagnosis screen when you contact Pyxis ) for troubleshooting your device.

  • Page 28: Device Maintenance & Cleaning

    Device maintenance & cleaning 7 Device maintenance & cleaning The working life of the SP-700 is greatly increased if you follow these maintenance best practices: • Rinse the meter with tap water or DI water after measurement, and remove residual water using a paper towel.
  • Page 29 Device maintenance & cleaning Pyxis SP-700 Multimeter Operation Manual...

  • Page 30: Replacing The Ph And Orp Module (Hardware Before Sn: 170000)

    Replacing the pH and ORP module (Hardware before SN: 170000) 8 Replacing the pH and ORP module (Hardware before SN: 170000) The pH/ORP module in the SP-700 can be replaced when the original module reaches the end of its working life.

  • Page 31: Replacing The Ph And Orp Module (Hardware After Sn: 170000)

    Replacing the pH and ORP module (Hardware after SN: 170000) 9 Replacing the pH and ORP module (Hardware after SN: 170000) The pH/ORP module in the SP-700 can be replaced when the original module reaches the end of its working life.
  • Page 32 Replacing the pH and ORP module (Hardware after SN: 170000) Removing the hex screws Pushing the pH/ORG module forward Inserting the new module into the side aluminum rails Pyxis SP-700 Multimeter Operation Manual...

  • Page 33: Bluetooth Connection

    Bluetooth connection 10 Bluetooth connection The Pyxis SP-700 can be connected to a smart phone or a computer via the built-in Bluetooth Low Energy Connection (BTLE). A laptop with Pyxis Nebula software can use the Bluetooth adapter included with the SP-700 as a standard accessory to connect to the SP-700 for parameter configuration, firmware upgrade, and other tasks.

  • Page 34: Calibrate St-500 With Sp-700

    11 Calibrate ST-500 with SP-700 The SP-700 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-700 can then be used to calibrate the inline probes over the Bluetooth connection.
  • Page 35 Figure 34 Figure 35 Use the SP-700 meter to measure the sample water by pressing the Read key. The PTSA value is displayed on the screen below the ST-500 readings, as shown in Figure 35. Press Calib to send the calibration instruction to the ST-500 via Bluetooth connection.

  • Page 36: Regulatory Approval

    8. REGULATORY APPROVAL United States The SP-700 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.

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