1. Specifications 1.1 General Specifications Circuit Custom microprocessor LSI Display LCD size : 58 mm x 34 mm Measurement pH / Oxidation Reduction Potential (ORP) Conductivity/Total Dissolved Solids (TDS) Dissolved Oxygen (DO) Temperature Sampling Time of Data Logger 1 second to 8 hours 59 minutes and 59 seconds Data-Hold Freeze the display reading.
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pH Calibration 11 to 3 point calibration using pH 7 / pH 4 / pH 10 buffer solutions Three point calibration ensures best linearity and accuracy. Measurement Range Resolution Accuracy* 0 bis 14 pH 0,01 pH ± (0,02 pH + 2 digits) - 1.999 bis 1.999 1 mV ±...
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C. TDS (Total Dissolved Solids) Range Measurement Resolution Accuracy 200 ppm 0 bis 132 ppm 0,1 ppm ± (2 % F.S. + 1 Stelle) 2.000 ppm 132 bis 1.320 ppm 1 ppm 20.000 ppm 1.320 bis 13.200 ppm 10 ppm 200.000 ppm 13.200 bis 132.000 ppm 100 ppm...
DC IN RS232 RESET A-17 A-18 A-19 A-20 A-17 DC 9V Power Adapter Input Socket A-18 RS-232 Output Terminal A-19 System Reset Button A-20 LCD Brightness Adjust Attention: Please do not put more than one electrode only into the water sample when using an instrument that works with various electrodes.
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Display layout 10.00 Measurement Value pH or mV 25.0 °C Manual Temp. Temp. value Temp unit Manual Temp. or Auto Temp. Fig. B 3.1 pH measurement (with manual temperature setting) 1) Attach the pH Electrode by installing the “Probe Plug“ (Fig. B-1) into the “pH Socket/BNC Socket“...
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3.2 pH measurement (with ATC , automatic Temperature Compensation) 1) All the procedures are the same as for 3.1 “pH measurement (manual temper- ature setting)“, except for attachment of a temperature probe by inserting the plug of the temperature probe into the “Temp. Socket“ (Page 4, Fig. A-13), and immersing the sensing head of the temperature probe into the measure- ment solution.
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Required Equipment for Calibration 1) pH Electrode. 2) pH buffer solutions. Calibration Procedure 1) Attach the pH Electrode by installing the “Probe Plug“ (Page 6, Fig. B-1) into the “pH Socket/BNC Socket“ (Page 4, Fig. A-16). 2) Power on the meter, set the mode to pH measurement, and the bottom right display will show “PH“...
8) The described procedure can be performed for the following calibration points: pH7 calibration pH4 calibration pH10 calibration • Calibration should always start with pH7, followed by pH4 and / or pH10 calibration. • Rinse the electrode with distilled water before each calibration point. •...
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Measurement Value Display layout 19.00 200.0 µS 24.2 °C Auto Range Temp. value Temp unit Range Auto or Manual scale range Fig. C 4.1 µS, mS measurement 1) Attach the Conductivity Probe by installing the “Probe Plug“ (Fig. C-1) into the “CD Socket“...
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Manual range operation The meter default is set to auto range mode. Under auto range measurement, the bottom right display will show the “Auto Range“ indicator. If manual range mode is required, the procedures are as follows: 1) Press the “Range” button continuously for at least two seconds until the bottom right display shows the “Manual Range“...
2) Install the “Probe Plug“ (Page 14 Fig. C-1 ) into the “CD Socket“ (Page 4, Fig. A-14). 3) Power on the meter, and set the mode to conductivity measurement (µS, mS ). 4) Hold the probe body (Page 10, Fig. C-2) and completely immerse “Sensing Head“...
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Display layout Measurement Value 20.9 24.2 °C Temp. value Temp unit Temp. unit or mg/L 5.1 Dissolved Oxygen measurement Fig. D 1) Attach the Oxygen Probe by installing the “Probe Plug“ (Fig. D-1) into the “DO Socket“ (Page 4, Fig. A-15). 2) Power on the meter by pressing the “Power”...
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5) • Remove the protective cover from the probe head and immerse the probe to a depth of at least 10 cm in the measured liquid in order for the auto matic temperature compensation to take effect. • Thermal equilibrium must occur between the probe & the measurement sample, which usually takes to a few minutes if the Temp.
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4) Press the “REC” button and “HOLD” button at the same time. The display will show the following screen, as an example. Now release. 20.9 O2 CAL. ESC:N ENTER: Y 23.5 °C 5) Press the “Enter” button twice. This will save the calibration data and finish the calibration procedure.
Probe Electrolyte Probe head including Fig. E Diaphragm set 1) Unscrew the “Probe Head“ (Page 16, Fig E-3). 2) Pour out the old Electrolyte from the container in the “Probe head“. 3) Fill the container with new Electrolyte. 4) Screw the probe head (Fig E-3) back onto the E-1 Probe body probe body.
6.3 Data Logger The data logger function can save 16,000 readings with time and date. (Real time data logger with built-in-clock (hour-min-sec., year-month-date)). Der Ablauf für die Datenerfassung ist wie folgt: The data logger procedure is as follows: a) Pushing the “Logger” button once will show the sampling time value on the bottom left display then disappeared.
2) To select “Advanced Setting Function”, press and hold the SET button, then press again to successively show the following: 7.1 Memory Space 7.2 Clear Memory 7.3 Date/Time Set 7.4 Sample Time 7.5 Auto Power Off 7.6 Temp. Unit The following functions appear only if the corresponding measurement function is selected (pH, CD, DO) 7.7 M.
• After Date/Time adjustment, push the “Enter” button, then press the “ESC” button to save the clock data into the memory, and return to the normal display. 7.4 Sample Time Setting • Use “ ” Up, “ ” Down and “Enter” (->) to select the Sample Time (hour-min-sec).
• After setting the desired value, press “Enter“, then press “ESC” to save the data and return to the normal display. • Temp. Compensation Factor is typically set to 2.0% per C degree. 7.9 CD (µS, mS), TDS (ppm) Default Setting •...
7.12 Escape from the SETTING function Press “ESC” once to quit and return to the normal measurement display or press “Enter”! 8. Data Output From The Meter To send data out from the meter, exit the “Hold function“ and the “Record function“...
3) Once the desired Memory Block no. has been selected, push the “Send” button once, and the data in the Memory Block will transmit. During data output, the bottom right display will show “Sending Data!“. When data output is completed, the bottom right display will show “Transmit mode“ again.
13. IMPORTANT INFORMATION FOR pH ELECTRODES General information: Non-refillable gel electrodes are wear parts. The service life and the measurement accuracy depend significantly on application, storage and maintenance. Improper storage as well as special samples with e.g. aggressive chemicals, high contamina- tion potential and high temperatures can reduce the service life to few months or even weeks.
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