CONDUCTIVITY/ TDS METER + PH meter Model : DCT2001
TABLE OF CONTENTS 1. FEATURES............................................................... 1 2. SPECIFICATIONS..................................................... 2 2-1 General Specifications.........................................2 2-2. Conductivity/TDS/Temp. specifications................3 a. Conductivity..................................................... 3 b. TDS ( Total Dissolved Dolids )........................... 4 c. Temperature....................................................
1. FEATURES * Conductivity/TDS ( Total Dissolved Solids ) Meter + PH Meter, multi functions & intelligent features. * Conductivity includs 2 ranges : 2 mS, 20 mS. TDS has 2 ranges : 2,000 PPM, 20,000 PPM. Temperature measurement range from 0 - 60 蚓 / 32 - 140蚌. * Conductivity/TDS meter build in automatic temperature compensation circuit, adjustable between 0 to 5.0% per 蚓. * Conductivity/TDS meter uses carbon rod electrode with long life using separated pobe is convenient for remote measurement.
2. SPECIFICATIONS 2-1 General specifications Circuit Display Measurement Memory Recall Data hold Memory Recall Power off Data Output Overload indication Operating Temperature Operating Humidity Sampling Time Power Supply Microprocessor LSI circuit. 51 mm x 32 mm, dual function LCD display, 15 mm ( 0.6" ) digit size. * Conductivity * TDS ( Total Dissolved Solids ) * Temperature ( use the CD/TDS probe ) * PH * mV Records maximum and minimum readings with recall.
Main meter : Size 195 x 68 x 30 mm ( 7.6 x 2.6 x 1.2 inch ). Conductivity/TDS probe : Round, 22 mm Dia. x 120 mm length. Conductivity/TDS probe...............1 PC. Operation manual....................... 1 PC. Carrying case, CA-06................... 1 PC. PH electrode............. PE-03, PE-11, PE-01 ATC probe for PH meter.......... YK-200PATC ORP electrode.........................ORP-04 RS232 cable, UPCB-02............ UPCB-02 Application Software............
B. TDS ( Total Dissolved Dolids ) Range 2,000 PPM 20,000 PPM Measurement 132 to 1,320 PPM 1,320 to 13,200 PPM Resolution Accuracy 1 PPM 10 PPM ( 3 % F.S. + 1 d ) * F.S. - Full scale * Temperature Compensation : Automatic from 0 to 60 蚓 ( 32 - 140 蚌 ), with temperature compensation factor variable between 0 to 5.0% per C. * PPM - parts per million * @ 23 5蚓 C. Temperature Function Measuring Range Resolution Accuracy 蚓 0 蚓 to 60 蚓 0.1 蚓 0.8 蚓 蚌 32 蚌 to 140 蚌 0.1 蚌 1.
3. FRONT PANEL DESCRIPTION Fig.
Fig. 1 3-1 Display 3-2 Power Button 3-3 REC. Button 3-4 Hold Button A Button ( 蚓,蚌 Button ) 3-5 up Button 3-6 B Button ( Range Button ) PH/mV Button/left Button 3-7 C Button ( CD/TDS Button ) CAL Button/down Button 3-8 D Button ( TEMP.
4. MEASURING PROCEDURE 4-1 Conductivity measurement 1) Plug the " Conductivity/TDS Probe plug " ( 3-18, Fig.1) into the " Conductivity/TDS Socket " ( 3-12, Fig. 1 ) Make sure that the probe lock switch ( 3-11, Fig. 1 ) should slide to the lock position ( ). 2) Power on the instrument by pushing the " Power Button " ( 3-2, Fig.1 ) 3) Push the " CD/TDS " Button ( C Button ) ( 3-7, Fig. 1 ), and select the function to the conductivity measurement. The display will show the unit of " mS ".
b. Use the " up Button ( A Button ) " ( 3-5, Fig. 1 ), " left Button ( B Button ) " ( 3-6, Fig. 1 ) " down Button ( C Button ) " ( 3-7, Fig. 1 ) to select the desired value of Temperature Compensation factor. c. Once the desired value is reached, push the " Temp. C Button ( D Button ) " ( 3-8, Fig. 1 ) to set the new value. 5) Select the applicable range, by using the " Range Button ( B Button ) " ( 3-6, Fig. 1 ).
4-3 Calibration procedures of Conductivity meter The meter has been calibrated during manufacture. However, it may be necessary to re-calibrate periodically. Particularly when the instrument is used for a long period or when the conductivity electrode is changed. To re-calibrate the instrument, follow the procedures shown below : Range 1 ( 2 mS range ) calibration 1) Prepare a " 1.413 mS Calibration Solution ". 2) Immerse the head of " Conductivity Probe " ( 3-17, Fig.
Range 2 ( 20 mS range ) calibration 1) Prepare a " 12.88 mS Calibration Solution ". 2) Immerse the head of " Conductivity Probe " ( 3-17, Fig. 1 ) into the 12.88 mS solution up to the immersion level. 3) Select the range to the " 20 mS " position. 4) Set the temperature coefficient factor value to " 2.0% per 蚓" 5) At the same time push the following buttons together : a. REC.( MAX./MIN. ) Button ( 3-3, Fig. 1 ) b. HOLD Button ( 3-4, Fig. 1 ) The upper display will show the flashing text of " CAL ".
4-4 PH meter * Make sure that the probe lock switch ( 3-11, Fig. 1 ) had switched to the lock position ( ). * Make sure that the " Conductivity/TDS Plug " ( 3-18, Fig. 1 ) had taken away from the meter. a. PH Measurement Whenever the calibration procedures are recommended to be done before PH measurement. 1) Connect the PH ELECTRODE to the " PH BNC Input Socket " ( 3-10, Fig. 1 ). 2) Power on the instrument by pressing the " Power Button " ( 3-2, Fig. 1 ). 3) Press the " PH/mV Button " ( 3-6, Fig.
b. mV Measurement The instrument built in mV ( millivolt ) measurement function, which enable you to make ion-selective, ORP (oxidation-reduction potential), and other precise mV measurements. Press the " PH/mV Button " ( 3-6, Fig. 1 ) to select the mV function with a " mV " symbol on the display. c. Temp. Measurement 1) Plug the " Optional ATC Temp. Probe, YK-200PATC " into the " Probe Input Socket " ( 3-12, Fig. 1 ). 2) * If you intend to measure " 蚓 ", then press the " 蚓/ 蚌 Button " ( 3-5, Fig.
2) Press the " PH/mV Button " ( 3-6, Fig. 1 ) to select the PH function with a " PH " symbol on the display * Press the " TEMP. C Button " ( 3-8, Fig. 1 ) first, The upper display will show the measured PH values. the lower display will show the manual temperature compensation value. * Use the " Left Button " ( 3-6, Fig. 1 ), " Up Button " ( 3-5, Fig. 1 ) and the " Down Button " ( 3-7, Fig. 1 ) to adjust the manual temperature compensation value. e.
f. Two Points Calibration PH 7 calibration Connect the PH ELECTRODE with the " BNC socket " ( 3-10, Fig. 1 ) and immerse the electrode in the PH7 buffer solution ( optional ). Press the " CAL Button " ( 3-7, Fig. 1 ) then the upper display shows texts of " CAL " and the lower display shows the default calibration value. * The texts " CAL " will flash for around 5 seconds. After that, the meter calibrates itself automatically.
4-5 Other functions ( Hold, Memory ) Data Hold Press the " Hold Button " ( 3-4, Fig. 1 ) will hold the measured value & the LCD will indicate a " HOLD " symbol on the display during the measuring. * Press the " Hold Button " again to exit the data hold function. Data Record ( Max., Min. reading ) * The data record function records the maximum and minimum readings. Press the " REC. Button " ( 3-3, Fig. 1 ) to start the Data Record function and there will be a " REC " symbol on the display.
5. AUTO POWER OFF DISABLE The instrument has " Auto Power Off " function in order to prolong battery life. The meter will shut off automatically if none of the buttons are pressed in approx. 10 min. To disable this function, Select the memory record function during the measurement by pressing the " REC. Button " ( 3-3, Fig. 1 ). 6. RS232 PC SERIAL INTERFACE The instrument features RS232 output via 3.5 mm Terminal ( 3-13, Fig. 1 ).
The 16 digits data stream will be displayed in the following format : D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Each digit indicates the following status : D0 D1 & D8 D9 D10 D11 & D12 D13 D14 D15 End Word Display reading, D1 = LSD, D8 = MSD For example : If the display reading is 1234, then D8 to D1 is : 00001234 Decimal Point(DP), position from right to the left 0 = No DP, 1= 1 DP, 2 = 2 DP, 3 = 3 DP Polarity 0 = Positive 1 = Negative Annunciator for Display 蚓 = 01 蚌 = 02 PH = 05 mV = 18
7. BATTERY REPLACEMENT 1) When the left corner of LCD display show " ", it is necessary to replace the battery. However, in-spec. measurement may still be made for several hours after low battery indicator appears. 2) Slide the " Battery Cover " (3-14, Fig. 1) away from the instrument and remove the battery. 3) Replace with 9V battery ( Alkaline or Heavy duty type ) and reinstate the cover. 4) Make sure the battery cover is secured after changing the battery. 8.
PH ELECTRODE Model : PE-03 PH ELECTRODE Model : PE-11 PH ELECTRODE Model : PE-01 SPEAR TIP PH ELECTRODE Model : PE-04HD General purpose, laboratory & field usage. 12 mm dia. x 130 mm. Epoxy body, 1 - 13 pH. General purpose, laboratory & field usage. 9.5 mm dia. x 120 mm. Epoxy body, 1 - 13 pH. (0 - 14 pH typical) Professional, laboratory & field usage. 9.5 mm dia. x 120 mm. Epoxy body, 0 - 14 pH.
