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Summary of Contents for EUTECH INSTRUMENTS 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 2 Sep. 2010...
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Page 3: 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 4 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 & TDS only .. 15 9.12 3.8 SPC (Single Point Calibration)—Con &...
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Page 5: Introduction
1. 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 6: Getting Started
2. 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 7: 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... -
Page 8: Conductivity Electrode
3. 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 9 The follo ng calibration stand s are automatically recogniz 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 .
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Page 10: Millivolt (Mv) Offset Adjustment
Note: When an offset has been stored successfully, R.mV replaces 5. 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 select one of (4) conductivity calibration standard values depending on the range and normalization temperature being used (TABLE 1). -
Page 11: 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 listed in TABLE 1, the PC 700 must be set for manual calibration instead. -
Page 12: 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 memory which will retain all calibration values, as well as meter settings and memory values upon meter shut down or unexpected power loss. -
Page 13: Manual Conductivity & Tds Calibration Procedure
When the READY indicator appears, press to accept. The primary reading will flash briefly before returning to measurement 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 14: 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 15: Hold Function
8. 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 16: Setup Functions
9. 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 17: Conf (Configuration)
9.3 3.0 ConF (Configuration) Press to access set-up programs 3.1 thru 3.9. 9.4 3.1 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 Fahrenheit) Press Press to select ºC or ºF. -
Page 18: Tds (Tds Factor)-Con & Tds Only
9.9 3.5 t.CO (Temperature Coefficient)—Con & TDS only The temperature coefficient is the 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 this will provide good results. -
Page 19: Acal (Auto Conductivity Calibration)-Con & Tds Only
9.13 3.8 CELL (Nominal Cell Constant)—Con & TDS only The PC 700 includes a probe with a nominal cell constant (k) of 1.0. Use probes with k = 0.1 and 10 (sold separately) for improved performance in extreme sample ranges. Use this setup function to change the cell constant if necessary. -
Page 20: Rst (Reset)
9.14 4.0 rSt (Reset) Press Press to select “Yes” (Reset) or “No” (Cancel). If “Yes”, press to select “Cal” (calibration reset only) or “FCt” (complete reset to factory default settings). Press to confirm. 9.15 5.0 CLr (Clear Memory) Press Press to select “Yes”... -
Page 21: Calculating Tds Conversion Factor
10. 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 22: Calculating Temperature Coefficients
11. 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 23: Replacements And Accessories
12. 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 24: Troubleshooting Guide
13. TROUBLESHOOTING GUIDE PROBLEM CAUSE SOLUTION No display Main power not switched on. Switch on the power supply. AC Adapter socket not inserted Re-insert AC Adapter. properly. “Ur” (Under Measured value is out Check electrode is connected. range) of range. Clean or replace electrode. - Page 25 PROBLEM CAUSE SOLUTION Calibration error. Use fresh buffer solutions. Buffer value does not match Check electrode connection. displayed value or electrode is Clean & recondition electrode. disconnected or failing. Replace electrode. Unstable pH Broken or worn electrode Replace electrode reading External ‘noises’...
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Page 26: Specifications
14. SPECIFICATIONS pH Range -2.00 to 16.00 pH Resolution 0.01 pH ± 0.01 pH 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 27 Normalization 15.0 to 30.0 ºC (adjustable) 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...
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Page 28: 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 29: Return Of Items
For your protection, items must be carefully packed to prevent damage in shipment and insured against possible damage or loss. Eutech Instruments will not be responsible for damage resulting from careless or insufficient packing. A restocking charge will be made on all unauthorized returns. - Page 30 NOTES...
- Page 32 For more information on our products, please contact our channel partner or visit our websites listed below: Oakton Instruments Eutech Instruments Pte Ltd 625 E Bunker Court Blk 55, Ayer Rajah Crescent, Vernon Hills, IL 60061 #04-16/24 Singapore 139949 Tel: (1) 888-462-5866...
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