Oakton PC 700 Instruction Manual

Oakton PC 700 Instruction Manual

Ph/mv/conductivity/ºc/ºf bench meter

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Instruction Manual
PC 700 pH/mV/Conductivity/ºC/ºF
Bench Meter
Technology Made Easy ...
Part of Thermo Fisher Scientific
68X541704 Rev. 1 Feb. 2010
GlobalTestSupply
www.
.com
Find Quality Products Online at:
sales@GlobalTestSupply.com

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Summary of Contents for Oakton PC 700

  • Page 1 Instruction Manual PC 700 pH/mV/Conductivity/ºC/ºF Bench Meter Technology Made Easy ... Part of Thermo Fisher Scientific 68X541704 Rev. 1 Feb. 2010 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. INTRODUCTION .............. 1 2. GETTING STARTED............2 Keypad Functions ..............2 LCD Annunciators ..............3 Meter Connections ..............3 3. CONDUCTIVITY ELECTRODE ........4 4. PH AND MV CALIBRATION..........4 pH Calibration ................. 4 Millivolt (mV) Offset Adjustment ..........6 5.
  • Page 3 3.3 buFF (pH Buffers & Calibration Points)—pH only ..... 13 3.3 AtC (Auto Temp Compensation)—Con & TDS only ..13 3.4 tdS (TDS factor)—Con & TDS only ........14 3.5 t.CO (Temperature Coefficient)—Con & TDS only.... 14 9.10 3.6 t.nr (Normalization Temperature in ºC)—Con & TDS only 14 9.11 3.7 ACAL (Auto Conductivity Calibration)—Con &...
  • Page 4: Introduction

    INTRODUCTION Thank you for purchasing our PC 700 series benchtop meter. This microprocessor-based meter is economical and simple to use. The design incorporates a large LCD for clear viewing, yet offers a small footprint to conserve space. The PC 700 measures pH, mV (ORP), conductivity, or TDS simultaneously with temperature (ºC or ºF).
  • Page 5: Getting Started

    GETTING STARTED 2.1 Keypad Functions Powers the meter on and off. Upon power on, the meter automatically begins in the mode that was last used. Calibration and memory values are retained even if meter is unplugged. Toggle between available measurement modes— pH/Temp, mV/Temp, Conductivity/Temp, or TDS/Temp.
  • Page 6: Lcd Annunciators

    2.2 LCD Annunciators 2.3 Meter Connections Power supply CON/ 8-pin DIN connection for 2-cell Con/TDS/Temp electrode TEMP BNC connection for pH, or ORP (Redox) electrode GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
  • Page 7: Conductivity Electrode

    CONDUCTIVITY ELECTRODE The PC 700 includes an electrode with a nominal cell constant of k = 1.0, built-in temperature sensor, and 1 meter cable. The Ultem body housing has good chemical resistant properties. The electrode design offers fast temperature response and reduces air entrapment, ensuring accurate, repeatable, and stable readings.
  • Page 8 USA buffer group 1.68, 4.01, 7.00, 10.01, 12.45 ST buffer group 1.68, 4.01, 6.86, 9.18, 12.4 See Section 9.6 to change th e buffer group 1) Press as needed to select pH. Dip the pH and ATC electrodes into pH buffer and press .
  • Page 9: Millivolt (Mv) Offset Adjustment

    Note: When an offset has been stored successfully, R.mV replac CONDUCTIVITY AND TDS CALIBRATION 5.1 Automatic or Manual Calibration The PC 700 is capable of automatic or manual calibration for conductivity, and manual calibration for TDS. In the automatic calibration mode, the meter will automatically se...
  • Page 10: Single Or Multi-Point Calibration

    If you only use calibration standards that are listed in TABLE 1, automatic calibration is recommended. If you intend to calibrate with one or more standards that are not l isted in TABLE 1, the PC 700 must be set for manual calibration i nstead.
  • Page 11: General Calibration Tips

    Rinse or immerse the probe before calibration and between samples with clean water (deionized water is ideal). The PC 700 has non-volatile memor y which will retain all calibration values, as well as meter settings and memory values upon meter shut down or unexpected power loss.
  • Page 12: Manual Conductivity & Tds Calibration Procedure

    When the READY indicator appears, press to accept. The primary reading will flash briefly before returning to measuremen mode upon successful calibration. 5.5 Manual Conductivity & TDS Calibration Procedure Press as needed to select conductivity (μS or mS) or TDS (ppm or ppt) calibration.
  • Page 13: Conductivity And Tds Measurement

    Erroneous results will occur while the probe guard is removed. 6.2 Automatic and Manual Ranging The PC 700 automatically selects the optimum range in which your readings appear. Refer to TABLE 1 for a list of the available ranges. To turn-off automatic ranging, press .
  • Page 14: Hold Function

    STORING AND RECALLING DATA The PC 700 can retain up to 100 data points into memory for later retrieval. 1) In the measurement mode, press to insert the measured value into memory.
  • Page 15: Setup Functions

    SETUP FUNCTIONS Use the setup feature to customize your instrument operation. First, select the appropriate measurement mode you wish to adjust by pressing until the desired units are displayed (i.e. pH, mV, Conductivity, or TDS). During measurement, press and hold for 5 seconds to enter SETUP mode of the parameter being measured.
  • Page 16: Conf (Configuration)

    9.3 3.0 ConF (Configuration Press to access set-up programs 3.1 thru 3.9. rdY (Ready / Stability Indicator) Press Press to choose READY “On”, READY “OFF”, or Auto HOLd. Press to confirm. 9.5 3.2 ºC ºF (Celsius or Fahr enheit) Press Press to select ºC or ºF.
  • Page 17: Tds (Tds Factor)-Con & Tds Only

    The tem erature oefficient is th e amount of change in conductivity per degree temperature (% per ºC). The PC 700 is factory set to a temperature coefficient of 2.1 % per ºC. For most applications t his will provide good results. The meter allows adjustment from 0.0 to 10.0.
  • Page 18: Acal (Auto Conductivity Calibration)-Con & Tds Only

    Press to confirm. 9.13 3.8 CELL ( Cell Constant)—Con & TDS only The PC 700 includes a probe with a nominal cell constant (k) of 1.0. Use prob es with = 0.1 and 10 (sold se parately) for improved performa ce in extreme sample ranges. Use this setup function to change the cell constant if necessary.
  • Page 19: Rst (Reset)

    9.14 4.0 rSt (Reset) Press Press to select “Yes” (Reset) or “No” (Cancel). If “Yes”, pres to select “Cal” (calibration reset only) or “FCt” (compl ete reset to factory default settings). Press to confirm. 9.15 5.0 CLr (Clear Mem ry) Press Press to select “Yes”...
  • Page 20: Calculating Tds Conversion Factor

    CALCULATING TDS CONVERSION FACTOR You can calibrate TDS using the value of the calibration standard solution at a standard temperature such as 25 ºC. To determine the conductivity- to-TDS conversion factor use the following formula: Factor = Actual TDS ÷ Actual Conductivity @ 25 ºC ...
  • Page 21: Calculating Temperature Coefficients

    CALCULATING TEMPERATURE COEFFICIENTS To determine the temperature coefficient of your sample solution use this formula: Where: tc = Temperature coefficient 25 = 25 ºC = Conductivity at Temp 1 = Conductivity at Temp 2 T1 = Temp 1 T2 = Temp 2 NOTE: A controlled temperature water bath is ideal for this procedure.
  • Page 22: Replacements And Accessories

    REPLACEMENTS AND ACCESSORIES Part number Ordering Code Item Description Eutech Oakton Instruments Instruments PC 700 with pH electrode (ECFC7252101B / 59001- ECPC70043S 70), conductivity/temp electrode (CONSEN9501D / 35413-00 01X543601 35608-74), integral stand,100/240 VAC PC 700 with integral stand, 100/240 VAC...
  • Page 23: Troubleshooting Guide

    TROUBLESHOOTING GUIDE PROBLEM CAUSE SOLUTION No display Main power not switched Switch on the power supply. on. AC Adapter socket not Re-insert AC Adapter. inserted properly. “Ur” (Under Measured value is out Check electrode is connected. range) of range. Clean or replace electrode. Electrode not connected.
  • Page 24 Calibration error. Use fresh buffer solutions. Buffer value does not Check electrode connection. match displayed value or Clean & recondition electrode. electrode is disconnected Replace electrode. or failing. Unstable pH Broken or worn electrode Replace electrode reading External ‘noises’ or Remove or switch off interfering induction (electrical ‘noise’...
  • Page 25: Specifications

    SPECIFICATIONS pH Range 0.00 to 14.00 pH Resolution 0.01 pH  0.01 pH + 1 count Accuracy Calibration Points Up to 5 points with Auto-buffer recognition USA : pH 1.68, 4.01, 7.00, 10.01,12.45 Buffer Options NIST: pH 1.68, 4.01, 6.86, 9.18 ,12.45 Slope Display Yes (with offset) ...
  • Page 26 Cell Constant 0.1, 1.0, 10.0 (selectable) TDS Factor 0.40 to 1.00 (adjustable) Automatic (4 points); Maximum 1 per range Calibration points Manual (5 points); Maximum 1 per range Auto-ranging Hold Function Memory 100 data sets Input BNC, 8-pin DIN Power AC/DC 9V, 6W Adapter (100/240 VAC, 50-60Hz) Dimensions (mm) meter only = 175 (L) x 155 (W) x 69 (H)
  • Page 27: Warranty

    If repair or adjustment is necessary and has not been the result of abuse or misuse within the designated period, please return – freight prepaid – 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 28: Return Of Items

    Eutech Instruments will not be responsible for damage resulting from careless or insufficient packing. A restocking charge will be made on all unauthorized returns. NOTE: Eutech Instruments Pte Ltd /Oakton Instruments reserve the right to make improvements in design, construction, and appearance of products without notice.

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