EUTECH INSTRUMENTS WATERPROOF CYBERSCAN PD 300 PHDISSOLVED OXYGEN METER Instruction Manual
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EUTECH INSTRUMENTS WATERPROOF CYBERSCAN PD 300 PHDISSOLVED OXYGEN METER Instruction Manual

Waterproof hand-held ph/dissolved oxygen/temperature meter
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Instruction Manual
CyberScan PD 300
Waterproof Hand-held pH/Dissolved Oxygen/Temperature Meter
68X248910
Technology Made Easy ...
05/2000 ver 1

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Summary of Contents for EUTECH INSTRUMENTS WATERPROOF CYBERSCAN PD 300 PHDISSOLVED OXYGEN METER

  • Page 1 Instruction Manual CyberScan PD 300 Waterproof Hand-held pH/Dissolved Oxygen/Temperature Meter 68X248910 Technology Made Easy ... 05/2000 ver 1...
  • Page 3 The information presented in this manual is subject to change without notice as improvements are made, and does not represent a commitment on the part of Eutech Instruments Pte Ltd. Copyright © May 2000 Eutech Instruments Pte Ltd. All rights reserved.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION DISPLAY AND KEYPAD FUNCTIONS Display Keypad PREPARATION Inserting the Batteries Probe Information CALIBRATION Preparing the meter for calibration pH Calibration Dissolved Oxygen Calibration Dissolved Oxygen Calibration in % Saturation Dissolved Oxygen Calibration in mg/l (ppm) mode Temperature Calibration MEASUREMENT Taking pH Measurements...

  • Page 5: Introduction

    INTRODUCTION Thank you for selecting Eutech Instruments waterproof portable meter. This meter is a microprocessor-based instrument that is designed to be handy capable of allowing one-hand operation. It is capable of measuring pH, Dissolved Oxygen (mg/l), % Saturation of Oxygen and Temperature.

  • Page 6: Display And Keypad Functions

    DISPLAY AND KEYPAD FUNCTIONS Display The LCD has a primary and secondary display. The primary display shows the measured pH and DO value (either in mg/l, ppm or %), depending on units of measurement selected. The secondary display shows the measured temperature in °C. The display also shows error messages, keypad functions and program functions.

  • Page 7: Keypad

    Keypad The large membrane keypad makes the instrument easy to use. Each button, when pressed, has a corresponding graphic indicator on the LCD. See Figure 1. Some buttons have several functions depending on its mode of operation. Function ON/OFF Powers on and shuts off the meter. When you switch on the meter, the meter starts up in the mode that you last switched off from.

  • Page 8: Preparation

    PREPARATION Inserting the Batteries Four AAA batteries are included with your meter. Use a Philips screwdriver to remove the two screws holding the battery cover. See Figure 3 below. Remove battery cover to expose batteries. Insert batteries. Follow the diagram inside the cover for correct polarity. Replace the battery cover into its original position using the two screws removed earlier.

  • Page 9: Probe Information

    Probe Information Your meter includes two probes: pH electrode with BNC connector. DO/temperature probe with a notched 6-pin connector The temperature sensing element built into the DO probe will also compensate for pH readings as long as both probes are in your solution at the same time. If you want to use a “3-in1”...
  • Page 10 To connect the DO/temperature probe: Line up the notch and 6 pins on the probe connector with the holes in the connector located on the top of the meter. Push down and screw the metal sleeve to lock the probe connector into place.

  • Page 11: Calibration

    4.01 or 7.00 buffer solution. Do not reuse buffer solutions after calibration. Contaminants in the solution can affect the calibration and eventually the accuracy of the measurements. See page 55 for information on our high-quality Eutech Instruments pH buffer solutions.
  • Page 12 To Calibrate pH: If necessary, press the MODE key to select pH mode. The pH indicator appears in the upper right hand corner of the display. Rinse the probe thoroughly with de-ionized water or a rinse solution. Do not wipe the probe; this causes a build-up of electrostatic charge on the glass surface.
  • Page 13 Press ENTER to confirm calibration. The meter is now calibrated to the current buffer. The lower display scrolls through the remaining buffer options. If you are performing multi-point calibration, go to step 7. If you are performing one-point calibration, go to step 9.

  • Page 14: Dissolved Oxygen Calibration

    Dissolved Oxygen Calibration Before calibrating your meter, make sure to rinse the probe well with de-ionized water. NOTE: Do not let membrane surface of the probe touch any other surface. The probe guard (the piece with holes fitted over the end of the probe) protects the membrane;...

  • Page 15: Dissolved Oxygen Calibration In % Saturation

    Dissolved Oxygen Calibration in % Saturation You can calibrate this meter quickly and easily in air. The exact calibration value depends on barometric pressure. The meter is set to a factory default of 760 mm Hg, which results in a calibration value of 100% saturation in air.

  • Page 16: Dissolved Oxygen Calibration In Mg/L (Ppm) Mode

    Dissolved Oxygen Calibration in mg/l (ppm) mode Calibrating the meter to 100% in saturation mode will also calibrate the mg/l mode at the value in mg/l corresponding to 100% saturation. This should produce acceptable results in most applications. This meter also lets you make a calibration adjustment in mg/l (ppm) mode without affecting your % saturation calibration.

  • Page 17: Temperature Calibration

    Whenever an error occurs during calibration, the ERR indicator appears in the lower left hand corner of the display. Temperature Calibration The built-in temperature sensor included in the probe is factory calibrated. Calibrate your sensor only if you suspect temperature errors that may have occurred over a long period of time or if you have a replacement probe.

  • Page 18: Measurement

    MEASUREMENT Taking pH Measurements 5.1.1 Automatic Temperature Compensation Automatic Temperature Compensation only occurs when a temperature sensing element is plugged into the meter. Temperature sensing element refers to the following probes made specifically for this meter: : The DO electrode (EC-DOHANDY) with a built- Figure 12 - ATC annunciator will light up when connected to in temperature sensor;...
  • Page 19 5.1.2 Manual Temperature Compensation (pH) IMPORTANT: For manual compensation, you must disconnect the temperature probe (see page 6). Switch the meter on. Press the MODE key to select pH mode. Press the CAL/MEAS key to enter pH calibration mode. The CAL indicator will appear above the primary display.
  • Page 20 Figure 14 - Measurement mode impurities adhering to the probe body. If the pH electrode has dehydrated, soak it for 30 minutes in Eutech Instruments electrode storage solution or 2M – 4M KCl solution (sold separately). Press ON to switch on meter.
  • Page 21 Taking measurements with READY indicator selected on If the READY indicator has been activated, the READY annunciator lights when the reading is stable*. Switch the READY indicator on or off in SETUP program P3.1. See page 29 for directions. * The READY indicator appears and the reading holds until the measured value exceeds the tolerance Then, the READY annunciator turns off.

  • Page 22: Taking Do Readings

    Taking DO readings During measurement, the probe can be: Fully immersed in the solution Partially immersed in the solution Do not allow the probe’s membrane surface to touch anything! The probe guard (the piece with holes fitted over the end of the probe) protects the membrane; you should leave this piece attached to the probe at all times.
  • Page 23 Taking measurements with READY ON indicator selected on If the READY indicator has been activated, the READY annunciator lights when the reading is stable. To switch the READY indicator on or off in the SETUP program – see Section 7.10.1 on page 41 for directions.

  • Page 24: Taking Pressure/Salinity Compensated Do Measurements

    Taking Pressure/Salinity Compensated DO measurements If necessary, you can adjust the pressure and salinity values of your measurements in the SETUP mode. The DO meter will automatically compensate for salinity and pressure based on the values entered in the SETUP functions. The meter is factory set at 760 mm Hg (101.3 Pascals) pressure adjustment and a factor of 0.0 ppt salinity adjustment.

  • Page 25: Hold Function

    HOLD FUNCTION This feature lets you freeze the dissolved oxygen and temperature readings for a delayed observation. HOLD can be used any time when in MEAS mode. To hold a measurement, press the HOLD key while in measurement mode. “HOLD” will appear on the display.

  • Page 26: Advanced Setup Functions

    ADVANCED SETUP FUNCTIONS The advanced SETUP mode lets you customize your meter’s preferences and defaults. Your Eutech Instruments waterproof meter features different sub groups that organize all set-up parameters. Each measurement parameter (pH, % saturation, & mg/l) has its own sets of customizable setup function, some of which are unique and independent while others are common for the whole meter.
  • Page 27 SETUP in pH Measurement Mode P1.0: View previous calibration data P1.1 First calibration point (pH 1.68) P1.2 Second calibration point (pH 4.01) P1.3 Third calibration point (pH 7.00) P1.4 Fourth calibration point (pH 10.01) P1.5 Fifth calibration point (pH 12.45) Instructions on page 26 P2.0: View electrode data P2.1...
  • Page 28 % Saturation Measurement Mode dPr: Dissolved Oxygen parameters Select Hg or Pa barometeric pressure units Select barometric pressure Instructions on page 33. OFS: % saturation offset adjustment Set % saturation offset adjustment Instructions on page 36. CAL: Viewing previous calibration data View previous calibration data Instructions on page 37.
  • Page 29 mg/l (ppm) Measurement Mode dPr: Dissolved Oxygen parameters Select Hg or Pa barometeric pressure units Select barometric pressure Select salinity adjustment factor Instructions on page 33. CAL: Viewing previous calibration data View previous calibration data Instructions on page 37. ELE: Viewing probe data View probe slope View mV value equivalent to 100% saturation View mV value equivalent to 0% saturation...

  • Page 30: P1.0: Viewing Previous Ph Calibration Data

    P1.0: Viewing previous pH calibration data This mode lets you recall previous pH calibration data, which helps you know when to re-calibrate your meter. This is a “view only” mode. From measurement mode: Press the MODE key to select pH measurement mode if necessary.

  • Page 31: P2.0: Viewing Ph Electrode Data

    P2.0: Viewing pH electrode data Program 2 has two “view only” options that let you check electrode parameters diagnostic purposes. It lets you view: P2.1 = Electrode offset P2.2 = Electrode slope From pH measurement mode Press the MODE key to select pH measurement mode.

  • Page 32: P3.0: Ph Measurement Configuration

    P3.0: pH Measurement configuration This subgroup program allows to customize the meter to your specific needs. You can program the meter to: Select READY indicator ON or OFF Select the number of pH calibration points Select between °C and °F units for temperature readings Figure 21 on the right shows the setup sequence for this program subgroup.
  • Page 33 P3.1: READY Indicator and auto endpoint function This program lets you select: “READY indicator on” to indicate when the reading is stable. “READY indicator off” for faster meter response. Auto endpoint function on. Select auto endpoint on to “hold” the reading when it is stable for more than 5 seconds.
  • Page 34 P3.2: Selecting number of pH calibration points Program P3.2 lets you select the number of calibration points that appear in pH calibration mode: 2, 3, 4, or 5. The meter will automatically exit calibration mode after you have calibrated to your selected number of points. From measurement mode.
  • Page 35 P3.3 Selecting C or F This meter lets you select between C and F units for temperature readings. From measurement mode Press the MODE key to select pH measurement mode. Press SETUP key to enter Set Up mode. Press the keys to scroll through subgroups until you view parameter P3.0.

  • Page 36: P4.0: Resetting To Factory Default Settings (Ph)

    P4.0: Resetting to factory default settings (pH) This program lets you reset all pH parameters to factory default settings. This clears all calibration data and any other pH setup functions you might have changed. The following settings will remain as you have set them: Temperature unit of measure (°C or °F) The temperature offset calibration value All DO calibration data and parameters...

  • Page 37: Dpr: Dissolved Oxygen Parameters

    dPr: Dissolved Oxygen Parameters This sub group is available in % saturation and mg/l (ppm) mode and lets you adjust the barometric pressure and salinity (% saturation mode only). 7.6.1 Pressure adjustment mode Barometric pressure is vital to correct dissolved oxygen measurements. You need to enter the correct barometric pressure of the area you are measuring.
  • Page 38 Figure 26: Change pressure units (mm Hg or kPa) & adjusting its values...
  • Page 39 7.6.2 Salinity Adjustment Mode NOTE: This mode appears mg/l (ppm) measurement mode only. Salinity correction mode lets you correct for the variations in oxygen solubility due to salt concentration in the sample. From measurement mode: Press the MODE key to select mg/l (ppm) mode. Press the SETUP key to enter SETUP mode.

  • Page 40: Ofs: Offset For % Saturation Measurement

    OFS: Offset for % Saturation Measurement NOTE: This sub group appears in % saturation measurement mode only. From measurement mode: Press the MODE key to select % saturation mode. Press the SETUP key to enter SETUP mode. Press keys to scroll through subgroups until you view parameter “OFS”...

  • Page 41: Cal: Previous Calibration Information

    CAL: Previous Calibration Information This sub group shows you the previous calibration data. This is a “view only” parameter. In % saturation mode: Calibration information is shown in % saturation units. From measurement mode: Press the MODE key to select the calibration data you want to view: % or mg/l (ppm).

  • Page 42: Ele: Electrode Properties

    ELE: Electrode Properties These “view only” parameters show you the electrode properties for diagnostic purposes: Probe Slope: Lets you view and gives an indication of the probe’s efficiency. The value displayed is the ratio of the theoretical value to the actual value produced by the probe.
  • Page 43 Press the ENTER key. The upper display shows the 100% saturation mV value. Press the ENTER key. The upper display shows the 0% saturation mV value. Press the ENTER key to move back to subgroup “ELE”. If you want to return to measurement mode, press CAL/MEAS.

  • Page 44: Cof: Unit Configuration

    7.10 COF: Unit Configuration Unit configuration mode lets you select the following parameters: READY indicator and auto endpoint function. mg/l or ppm units (available in mg/l or ppm mode only) Temperature in °C or °F. Figure 33: Unit configuration from % saturation measurement mode Figure 34: Unit configuration from mg/l measurement mode...
  • Page 45 7.10.1 READY Indicator and Auto Endpoint Function The first program lets you select: “READY indicator ON” to indicate when the reading is stable. “READY indicator OFF” for faster meter response. Auto Endpoint Function ON. Select auto endpoint ON to “HOLD” the reading when it is stable for more than 5 seconds.
  • Page 46 7.10.2 Selecting mg/l or ppm units NOTE: This mode appears in mg/l (ppm) measurement mode only. This mode lets you select between mg/l or ppm dissolved oxygen units. From measurement mode Press the MODE key to select mg/l (ppm) mode. Press SETUP key to enter SETUP mode.
  • Page 47 7.10.3 Selecting °C or °F Temperature Unit This meter lets you select between °C and °F units for temperature readings. From measurement mode Press SETUP key to enter SETUP mode. Press keys to scroll through subgroups until you view parameter “COF” in the upper display.

  • Page 48: Lcd: Adjusting Lcd Brightness

    7.11 LCd: Adjusting LCD Brightness NOTE: This function is only available through DO measurement mode (% saturation or mg/l) This mode lets you adjust the brightness of the backlit LCD. Selecting a dimmer back-lighting level helps conserve batteries. From measurement mode Press SETUP key to enter SETUP mode.

  • Page 49: Rst: Resetting To Factory Default Setting (Do)

    7.12 rSt: Resetting to Factory Default Setting (DO) This program lets you reset all DO (% saturation and mg/l) parameters to factory default settings. This clears all calibration data and any other DO setup functions you might have changed. The following settings will remain as you have set them: Temperature unit of measure (°C or °F) The temperature offset calibration value All pH calibration data and parameters...

  • Page 50: Probe Care And Maintenance

    PROBE CARE AND MAINTENANCE pH Electrode care Since your pH electrode is susceptible to dirt and contamination, clean it every one to three months depending on the extent and condition of use. NOTE: For specialty electrode care, consult the instruction manual included with your electrode.
  • Page 51 Reactivating the pH electrode If stored and cleaned properly, your pH electrode should be ready for immediate use. However, a dehydrated bulb may cause sluggish response. To rehydrate the bulb, immerse the electrode in a pH 4 buffer solution for 10 to 30 minutes. If this fails, the electrode requires activation.

  • Page 52: Dissolved Oxygen Principle

    2.5 cm/sec. The permeability of the membrane to oxygen varies greatly with temperature. Therefore compensation is needed for this variation. The Eutech Instruments’ DO probe comes with an in-built Temperature Compensation for the membrane variation.

  • Page 53: Probe Care

    Probe Care Under typical operating conditions, the probe should last for several years. Proper care and maintenance will help you receive the maximum probe life and ensure more accurate readings. Since any deposits on the membrane surface act as a barrier to oxygen diffusing through the membrane, the membrane must be cleaned at regular intervals to assure maximum reliability.
  • Page 54 Using the installation tool, unscrew and remove the membrane lock from the membrane cap. See Figure 42. Remove the membrane and O-ring. Discard both. Rinse the membrane cap and membrane lock in tap water. Install a new O-ring inside the membrane cap. Install a new membrane.

  • Page 55: Electrolyte Solution

    Electrolyte Solution The electrolyte solution in your probe’s cap will periodically evaporate and need to be replaced. The Eutech’s maintenance kit (Order Code EC-DOHDYKTNEW) comes ready with a bottle of replacement electrolyte solution, spare O-rings, membranes, a spare cap and a ring tool.

  • Page 56: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE Problem Cause Solution Press ‘ON’ key but no Batteries not in place Check that batteries are in place display and making good contact. Batteries not in correct polarity Re-insert batteries with correct (+ and – position). polarity. Weak batteries Replace batteries.

  • Page 57: Error Messages

    ERROR MESSAGES LCD Display Indicates Cause Solution Err annunciator Unrecognized input Wrong input in selected Release key. Select valid from keypad mode. operations depending on mode. CAL & Err Calibration error. Wrong value input at Check your input value, annunciators on / calibration.

  • Page 58: Specifications

    SPECIFICATIONS Range -2.00 to 16.00 pH Resolution 0.01 pH Relative accuracy ±0.01 pH Dissolved Oxygen Range 0.00 – 19.99 mg/l or ppm Resolution 0.01 mg/l; 0.01 ppm Relative accuracy ± 1.5% of Full Scale % Saturation of Range 0.0 – 199.9 % Oxygen Resolution 0.1 %...

  • Page 59: Accessories

    ACCESSORIES Replacement Meter and Meter accessories Ordering Code No. Item EC-PDWP300/03K Waterproof CyberScan PD 300 pH/Dissolved Oxygen meter with pH electrode (EC-FE72522-05B), DO electrode (EC-DOHANDY), electrode maintenance kit (EC-DOHDYKTNEW), calibrating solutions, and carrying case with accessories (EC-WPDRY-KIT) EC-FE72522-05B Epoxy body double-junction pH electrode with BNC and 5-m cable EC-DOHANDY Submersible Dissolved Oxygen electrode with 3-metre cable and temperature sensor...

  • Page 60: Addendum 1: Dissolved Oxygen& Meter Theory

    ADDENDUM 1: DISSOLVED OXYGEN& METER THEORY Dissolved Oxygen (DO) refers to the volume of oxygen that is contained in water. There are two main sources of DO in water: from atmosphere and photosynthesis. Waves and tumbling water mix air into the water where oxygen readily dissolves until saturation occurs. Oxygen is also produced by aquatic plants and algae as a by-product of photosynthesis.

  • Page 61: Addendum 2: Pressure Vs Altitude Table

    ADDENDUM 2: PRESSURE VS ALTITUDE TABLE Barometric pressure affects DO readings, therefore this meter lets you enter the correct barometric pressure at your altitude. If you do not have equipment that lets you measure the exact barometric pressure at your altitude, you can estimate it using the chart below. If you change the barometric pressure setting from its factory setting (760 mm Hg), the % saturation calibration value in air will automatically adjust to a value other than 100% (see “corrected % saturation value”...

  • Page 62: Addendum 4: Meter Factory Default Settings

    ADDENDUM 3: METER FACTORY DEFAULT SETTINGS Resetting the meter to factory default settings clears all calibration data and most other setup functions you might have changed. The following settings will remain as you have set them: Temperature unit of measure (°C or °F) The temperature offset calibration value.

  • Page 63: Warranty & Return Of Items

    If repair or adjustment is necessary and has not been the result of abuse or misuse within the designated period, please return – freight pre-paid – and correction will be made without charge. Eutech Instruments alone will determine if the product problem is due to deviations or customer misuse.
  • Page 64 NOTES: Date Time Recorded Value Remarks...
  • Page 65 NOTES:...
  • Page 66 For more information on Eutech Instruments products, contact your nearest Eutech Instruments distributor or visit our website listed below: Eutech Instruments Pte Ltd 55, Ayer Rajah Crescent, #04-14/24, Singapore 139949 Tel: (65) 778 6876 Fax: (65) 773 0836 Technology Made Easy ...

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