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Summary of Contents for Oakton PC 300
- Page 1 Instruction Manual PC 300 Waterproof Hand-held pH/Conductivity/TDS/Temperature Meter 35631-00 Technology Made Easy ... 68X248908 Rev3 01/04 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com...
- Page 2 It is written to cover as many anticipated applications of the Waterproof PC 300 hand-held meter as possible. If there are doubts in the use of the PC 300, please do not hesitate to contact the nearest Eutech Instruments/ Oakton Instruments Authorized Distributor.
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Page 3: Table Of Contents
TABLE OF CONTENTS INTRODUCTION DISPLAY AND KEYPAD FUNCTIONS Display Keypad PREPARATION Inserting the Batteries Probe Information CALIBRATION Important Information on Meter Calibration Preparing the Meter for Calibration pH Calibration Conductivity Calibration TDS Calibration Calibration with Conductivity Standard and TDS factor Temperature Calibration MEASUREMENT Taking pH Measurements... -
Page 4: Introduction
Your meter includes a conductivity electrode (cell constant K = 1.0) with built-in temperature sensor (Order Code: EC-CONSEN91W/ 35608-50), pH electrode (EC-FE72522-01B/ 35641-51) and batteries. Please read this manual thoroughly before operating your meter. Figure 1: PC 300 meter... -
Page 5: Display And Keypad Functions
Instruction Manual PC 300 DISPLAY AND KEYPAD FUNCTIONS Display The LCD has a primary and secondary display. • The primary display shows the measured pH, conductivity or TDS. • The secondary display shows the measured temperature. The display also shows error messages, keypad functions and program functions. -
Page 6: Keypad
Instruction Manual PC 300 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. -
Page 7: Preparation
Instruction Manual PC 300 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. -
Page 8: Probe Information
Instruction Manual PC 300 Probe Information Your meter includes two probes: • pH electrode with BNC connector. • conductivity/temperature probe with a notched 6-pin connector The temperature sensing element built into the conductivity probe will also compensate for pH readings as long as both probes are in your solution at the same time. - Page 9 Instruction Manual PC 300 To connect the conductivity/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.
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Page 10: Calibration
Instruction Manual PC 300 CALIBRATION Important Information on Meter Calibration When you re-calibrate your meter, old calibration points are replaced on a “point-by-point” basis in pH, and on a “range-by-range” basis in conductivity. For example: • pH: if you previously calibrated your meter at pH 4.01, 7.00, and 10.01, and you re-calibrate at pH 7.00, the meter retains the old calibration data at pH... -
Page 11: Preparing The Meter For Calibration
Instruction Manual PC 300 Preparing the Meter for Calibration Before starting calibration, make sure you are in the correct measurement mode. When you switch on the meter, the meter starts up in the measurement mode you shut it off in. For example, if you shut the meter off in pH measurement mode, the meter will come back into pH measurement mode when you switch the meter on. - Page 12 Instruction Manual PC 300 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 Instruction Manual PC 300 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.
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Page 14: Conductivity Calibration
PC 300 Conductivity Calibration The PC 300 meter has five measuring ranges. You can calibrate one point in each of the measuring ranges (up to five points). If you are measuring values in more than one range, make sure to calibrate each of the ranges you are measuring. All new calibration data will over-ride existing stored calibration data for each measuring range you calibrate. - Page 15 Instruction Manual PC 300 Do not reuse calibration solutions after calibration. Contaminants in the solution can affect the calibration, and eventually the accuracy of the measurements. Use fresh calibration solution each time you calibrate your meter. All new calibration data will over-ride existing stored calibration data for each measuring range calibrated.
- Page 16 ± 40% from default setting. If your measured value differs by more than ± 40%, clean or replace probe as needed. Eutech Instruments/ Oakton Instruments offers a wide selection of high-quality calibration standards. See section on Accessories for more information.
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Page 17: Tds Calibration
Instruction Manual PC 300 TDS Calibration 4.5.1 Calibrating for TDS directly The factory default setting for TDS conversion factor is 0.5. If your solution has a different TDS factor, you can improve calibration accuracy by setting the TDS factor prior to calibration. See P7.4 for directions. -
Page 18: Calibration With Conductivity Standard And Tds Factor
The TDS conversion factor is the number used by the meter to convert from conductivity to TDS. Instead of calibrating for TDS directly (described above), you can calibrate the PC 300 meter calibrating to conductivity standards (as described above) and then entering the appropriate TDS conversion factor into the meter. -
Page 19: Temperature Calibration
Instruction Manual PC 300 Temperature Calibration The conductivity electrode (EC-CONSEN91W/ 35608-50) supplied with the meter has a built-in temperature sensor. In addition you can also use a separate temperature sensing element supplied Eutech Instruments such temperature probe (EC-PHWPTEMP-01W/ 35618-05), or the “3-in-1”... - Page 20 Instruction Manual PC 300 Scroll with the keys to set the correct temperature value (i.e. the temperature of the temperature bath). You can adjust the reading increments of 0.1 °C. Once you have selected the correct temperature press the ENTER key. The meter automatically returns to pH measurement mode.
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Page 21: Measurement
Instruction Manual PC 300 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: •... - Page 22 Instruction Manual PC 300 5.1.2 Manual Temperature Compensation (pH) IMPORTANT: For manual compensation, you must disconnect the temperature probe (see section 3.2: Probe Information). Switch the meter on. Press the MODE key to select pH mode. Press the CAL/MEAS key to enter pH calibration mode.
- Page 23 Instruction Manual PC 300 5.1.3 Taking Measurements (pH) Be sure to remove the electrode soaker bottle or protective rubber cap on the electrode before measurement. To take readings: Rinse the pH electrode with de-ionized or distilled water before use to remove any impurities Figure 14 - Measurement mode adhering to the probe body.
- Page 24 Instruction Manual PC 300 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 Section 7.4.
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Page 25: Taking Conductivity Or Tds Measurement
Instruction Manual PC 300 Taking Conductivity or TDS Measurement 5.2.1 Automatic Temperature Compensation For automatic temperature compensation (ATC) simply plug the conductivity probe into the meter (see page 6 for directions). The ATC indicator will light on the LCD. NOTE: If the ATC indicator does not light, manual temperature compensation may be selected in the meter’s SETUP mode. - Page 26 Instruction Manual PC 300 5) Press the keys to select the Automatic Temperature Compensation feature on (ATC on) or off (ATC off). See Figure 18. 6) Press the ENTER key to confirm selection and to return subgroup menu. Press CAL/MEAS key to return to measurement mode.
- Page 27 Instruction Manual PC 300 5.2.3 Setting a manual temperature compensation value To use manual temperature compensation, you need to enter the temperature value of your process into the meter. This is the value at which reading will manually temperature compensates. You can select any temperature between 0 and 100 °C (32 to 212 °F). Default value is 25 °C (77 °F).
- Page 28 Instruction Manual PC 300 5.2.4 Taking Measurements (Conductivity or TDS) To take readings: Rinse the probe with de-ionized or distilled water before use to remove any impurities adhering to the probe body. Shake or air dry. To avoid contamination or dilution of your sample, rinse probe with a small volume of your sample liquid.
- Page 29 Instruction Manual PC 300 5.2.5 Using Auto and Manual Ranging Function (for conductivity & TDS) Auto-ranging Your meter automatically selects the range in which your readings appear. For example: If you dip the conductivity probe into a standard solution, say, 12.88 mS.
- Page 30 Instruction Manual PC 300 Manual-ranging The manual ranging function lets you select the specific range you want to work in. Refer to Section 4.4 for the table of range. To select the desired measuring range, press the RANGE key while in Measurement mode. The first range will appear on the display and the “MEAS”...
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Page 31: Hold Function
Instruction Manual PC 300 HOLD FUNCTION This feature lets you freeze the display for a delayed observation. HOLD can be used any time in MEAS mode. To hold a measurement, press the HOLD key while in measurement mode. “HOLD” will appear on the display. -
Page 32: Advanced Setup Functions
Instruction Manual PC 300 ADVANCED SETUP FUNCTIONS The advanced setup mode lets you customized your meter’s preferences and defaults. This Waterproof handheld meter features different sub-groups that organize setup parameters. The sub-groups are: For pH For Conductivity & TDS P 1.0 View calibration data (CAL) P 5.0... - Page 33 Instruction Manual PC 300 Figure 25 - Overall view of SETUP programs for pH (on left) and conductivity/TDS (on right)
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Page 34: Advanced Setup Mode Overview
Instruction Manual PC 300 Advanced SETUP Mode Overview In either pH or Conductivity measurement mode, press the SETUP key to enter Set up mode. Press the keys to scroll through sub groups. Press ENTER key to enter a particular parameter. - Page 35 Instruction Manual PC 300 SETUP in Conductivity Measurement Mode P5.0: View previous calibration data First range calibration point (0.00 – 19.99 µS) P5.1 Second range calibration point (0.0 – 199.9 µS) P5.2 Third range calibration point (0 – 1999 µS) P5.3...
- Page 36 Instruction Manual PC 300 SETUP in TDS Measurement Mode P5.0: View previous calibration data P5.1 First range calibration point (0.00 – 9.99 ppm) P5.2 Second range calibration point (0.0 – 99.9 ppm) P5.3 Third range calibration point (0 – 999 ppm) P5.4...
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Page 37: P1.0: Viewing Previous Ph Calibration Data
Instruction Manual PC 300 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 38: P2.0: Viewing Ph Electrode Data
Instruction Manual PC 300 P2.0: Viewing pH electrode data Program 2 has two “view only” options that let you check the electrode parameters for diagnostic purposes. It lets you view: • P2.1 = Electrode offset • P2.2 = Electrode slope... -
Page 39: P3.0: Ph Measurement Configuration
Instruction Manual PC 300 P3.0: pH Measurement configuration This subgroup program allows to customize the meter to SETUP your specific needs. You can program the meter to: c o f Select READY indicator ON or OFF p 3 . 0... - Page 40 Instruction Manual PC 300 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”...
- Page 41 Instruction Manual PC 300 You can also change the Ready indicator and auto endpoint function in Program P7.1 (available from conductivity or TDS mode). Any changes you make to the Ready indicator/auto endpoint function in pH mode will also change in conductivity mode.
- Page 42 Instruction Manual PC 300 P3.4 Selecting °C or °F This meter lets you select between °C and °F units for temperature readings. SETUP From measurement mode Press the MODE key to select pH measurement mode. p 3 . 4 °C Press SETUP key to enter Set Up mode.
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Page 43: P4.0: Resetting To Factory Default Settings (Ph)
Instruction Manual PC 300 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: •... -
Page 44: P5.0: Viewing Previous Conductivity Calibration Data
Instruction Manual PC 300 P5.0: Viewing Previous Conductivity Calibration data This mode lets you recall previous calibration data, which helps you know when to re-calibrate your meter. This is a “view only” mode. This function applies for conductivity & TDS mode. -
Page 45: P6.0: Viewing Conductivity Probe Data
Instruction Manual PC 300 P6.0: Viewing Conductivity Probe Data Program 6 has five “view only” options that let you check the probe’s parameters for diagnostic purposes. These options show you the effective cell constant for each range. The cell constant is adjusted according to your calibration. -
Page 46: P7.0: Conductivity Or Tds Measurement Configuration
Instruction Manual PC 300 P7.0: Conductivity or TDS Measurement Configuration P7.1: 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. - Page 47 Instruction Manual PC 300 P7.2 Selecting °C or °F You can select between °C and °F units for temperature readings. Meter default is °C. From measurement mode Press the MODE key to select conductivity measurement mode. Press SETUP key to enter Set Up mode.
- Page 48 Instruction Manual PC 300 P7.3 Selecting Automatic or Manual Temperature Compensation This feature lets select between Automatic Temperature Compensation (ATC) Manual Temperature Compensation. Meter default is ATC. From measurement mode Press the MODE key to select conductivity measurement mode. Press SETUP key to enter Set Up mode.
- Page 49 Instruction Manual PC 300 P7.4 Setting the TDS factor The concentration of salts dissolved in solution increases the conductivity of that solution. This relationship varies from salt to salt and is roughly linear over a given range for a given salt.
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Page 50: P8.0 Temperature
Instruction Manual PC 300 P8.0 Temperature P8.1 Selecting the temperature coefficient The temperature coefficient is the amount of change in conductivity per degree of temperature; it is expressed in percent per °C. Entering the exact temperature coefficient of your solution lets you accurately compensate temperature for almost any solution *. - Page 51 Instruction Manual PC 300 P8.2 Adjusting the normalization temperature Your meter will normalize conductivity measurements to a standard temperature that you can select. You can adjust the normalization temperature from 15 to 30 °C (59 to 86 °F). Meter default is 25 °C (77 °F).
- Page 52 Instruction Manual PC 300 7.9.1 P9.0: Resetting to factory default settings (conductivity) Program 9.0 lets you reset all parameters to factory default settings. This clears all calibration data and any other conductivity setup functions you might have changed. From measurement mode Press the MODE key to select conductivity measurement mode.
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Page 53: Probe Care And Maintenance
Instruction Manual PC 300 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 54 Instruction Manual PC 300 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.
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Page 55: Conductivity Electrode
Instruction Manual PC 300 Conductivity Electrode Keep the conductivity probe clean. Rinse the probe twice, and gently swirl it while you take readings. For best accuracy, soak a dry probe for at least 5 to 10 minutes or longer before calibration. Rinse the probe with de-ionized water before storing. -
Page 56: Trouble Shooting Guide
Instruction Manual PC 300 TROUBLE SHOOTING GUIDE Problem Cause Solution Press ‘ON’ key but a) Batteries not in place a) Check that batteries are in no display place and making good contact. b) Batteries not in correct polarity b) Re-insert batteries with correct (+ and –... -
Page 57: Error Messages
Instruction Manual PC 300 10 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... -
Page 58: Specifications
Instruction Manual PC 300 11 SPECIFICATIONS Mode Temperature Conductivity Range 0 to 19.99 µS 0 to 9.99 ppm 0 to 99.9 ppm 0 to 199.9 µS 0 to 1999 µS 0 to 999 ppm -10.0 to 110.0 °C 0 to 19.99 mS 0 to 9.99 ppt... -
Page 59: Accessories
EC-CONSEN91W 35608-50 constant = 1.0, 12x110 mm, 1m cable length “3-in-1” pH / Temperature combination electrode EC-FE73528-01W 35808-71 with 1-m cable for waterproof PC 300 Temperature probe for Waterproof PC 300 EC-PHWPTEM-01W 35618-05 Carrying Kit with empty bottles EC-WPDRY-KIT 35632-98... - Page 60 Instruction Manual PC 300 Calibration Solutions Item Eutech Instruments Oakton Instruments Ordering Code No. Ordering Code No. pH 4.01 buffer solution, 480 ml bottle (1 pint) EC-BU-4BT 00654-00 pH 7.00 buffer solution, 480 ml bottle (1 pint) EC-BU-7BT 00654-04 pH 10.01 buffer solution, 480 ml bottle (1 pint)
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Page 61: Addendum 1: Conductivity To Tds Conversion Factors
Instruction Manual PC 300 13 ADDENDUM 1: CONDUCTIVITY TO TDS CONVERSION FACTORS Factor – the conductivity to ppm TDS conversion factor. Multiply conductivity by this factor to get ppm TDS for the type of TDS reading needed. 442 – a formulation that most closely represents the conductivity to ppm relationship, on average, for naturally occurring fresh water. -
Page 62: Addendum 2: Calculating Tds Conversion Factors
Instruction Manual PC 300 14 ADDENDUM 2: CALCULATING TDS CONVERSION FACTORS You can calibrate your meter using TDS calibration standard solutions. The calibration standard only needs to give the TDS value at a standard temperature such as 25 °C. To determine the conductivity-to-TDS conversion factor use the following formula: Factor = Actual TDS ÷... -
Page 63: Addendum 3: Calculating Temperature Coefficients
Instruction Manual PC 300 15 ADDENDUM 3: CALCULATING TEMPERATURE COEFFICIENTS To determine the temperature coefficient of your sample solution use this formula: Where: tc = Temperature coefficient 25 = 25 °C = Conductivity at Temp 1 = Conductivity at Temp 2... - Page 64 Instruction Manual PC 300 Press the key until the lower display reads P8.0. Press the ENTER key twice. The lower display reads tCO and the upper display shows the temperature coefficient value (should be 0, as per step 1 above).
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Page 65: Addendum 4: Meter Factory Default Settings
Instruction Manual PC 300 16 ADDENDUM 4: 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: •... -
Page 66: Addendum 5: Selecting Usa Or Nist Buffer Set In P3.3
Instruction Manual PC 300 17 ADDENDUM 5: SELECTING USA OR NIST BUFFER SET IN P3.3 As mentioned in Section 7.4: P3.3, program P3.3 lets SETUP select between USA and NIST buffer sets: u s a USA: pH 1.68, 4.01, 7.00, 10.01, 12.45 p 3 . -
Page 67: Warranty
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/ Oakton Instruments will determine if the product problem is due to deviations or customer misuse. -
Page 68: Return Of Items
A restocking charge will be made on all unauthorized returns. NOTE: Eutech Instruments Pte Ltd/ Oakton Instruments reserves the right to make improvements in design, construction, and appearance of products without notice. - Page 69 For more information on Eutech Instruments/ Oakton Instruments’ products, contact your nearest distributor or visit our website listed below: 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com...