Summary of Contents for EUTECH INSTRUMENTS CON 700 - REV 3
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Instruction Manual CON 700 Conductivity/ºC/ºF Bench Meter Technology Made Easy ... Part of Thermo Fisher Scientific 68X541702 Rev. 3 Nov 2010...
INTRODUCTION Thank you for purchasing our Con 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 CON 700 measures conductivity or TDS, and temperature (ºC or ºF) simultaneously.
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— Conductivity with Temperature or TDS with Temperature.
ELECTRODE INFORMATION The CON700 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.
The factory default is automatic conductivity calibration. See Section 6.10 to change this setting. There is no automatic calibration value available for conductivity range 1. TABLE 1 Automatic Calibration Values Range Conductivity Normalization Temperature Range 25 ºC 20 ºC 0.00 – 20.00 μS None None 20.1 –...
The factory default is Single-Point Calibration. See Section 6.11 to change this setting. 4.3 General Calibration Tips For best results, periodic calibration with known accurate standards is recommended. A maximum of one calibration point per range can be performed. If multiple calibration points are used in the same range, the most recent one will replace the previous one.
4.5 Manual Conductivity & TDS Calibration Procedure Press as needed to select conductivity (μS or mS) or TDS (ppm or ppt) calibration. Dip the electrode into the calibration standard and press Provide stirring for best results. The primary display will show the current reading, while the secondary display will be the factory default value.
Dip the probe into the sample beyond the upper steel band (utilize the fill line on the outside of the probe guard for reference). Allow time for the reading to stabilize. Note the reading on the display. The clear yellow protective probe guard must be attached during measurement.
2) To recall data from memory, press . The location of the most recent stored data is displayed first. Press to select the location of the desired data, then press to accept. 3) Press to return to the stored data location. Press to return to measurement mode.
Press to choose READY “On”, READY “OFF”, or Auto HOLd. Press to confirm. 6.5 P3.2 ºC ºF (Celcius Or Fahrenheit) Press Press to select ºC or ºF. Press to confirm. 6.6 P3.3 AtC (Automatic Temperature Compensation) Press Press to select “Yes” or “No”. Press to confirm.
See Section 8 – Calculating Temperature Coefficients. Press Press to select the desired value (0.00 to 10.0). Press to confirm. 6.9 P3.6 t.nr (Normalization Temperature in ºC) When Automatic Temperature Compensation is used, measurements are adjusted by the temperature coefficient to the normalization temperature.
6.12 P3.9 CELL (Nominal Cell Constant) The CON 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.
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 •...
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.
REPLACEMENTS AND ACCESSORIES Part number Ordering Code Item Description Eutech Instruments Oakton Instruments CON 700 Benchtop with electrode and ECCON70043S 35411-00 integral stand,100/240 VAC Replacement electrode, k = 1.0 CONSEN9501D 35608-74 Epoxy/platinum electrode, k = 0.1 93X546101 35608-72 Glass/platinum electrode, k = 1.0 35608-76 Epoxy/platinum electrode, k = 10.0...
TROUBLESHOOTING GUIDE PROBLEM CAUSE SOLUTION No display Main power not switched a) Switch on the power supply. on. AC Adapter socket not b) Re-insert AC Adapter. inserted properly. “Ur” (Under Measured value is out Check electrode is connected. range) of range. Clean or replace electrode.
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.
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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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