Instruction Manual EC214 EC215 - EC215R Bench Conductivity Meters http://www.hannainst.com These Instruments are in Compliance with the CE Directives Dear Customer, Thank you for choosing a Hanna Instruments Product. Please read this instruction manual carefully before using the instrument. This manual will provide you with all the necessary information for the correct use of the instrument, as well as a precise idea of its versatility in a wide range of applications. These instruments are in compliance with directives. PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any damage, notify your dealer. Each meter is supplied complete with: · Conductivity Probe (HI76300 for EC 214, HI76303 for EC 215 and EC 215R); · Instruction Manual; · 12VDC adapter (HI710005 or HI710006); · Dust cover. Note: Save all packing material until you are sure that the instrument functions correctly. All defective items must be returned in the original packing with the supplied accessories. TABLE OF CONTENTS PRELIMINARY EXAMINATION ............................................................ 3 GENERAL DESCRIPTION .................................................................... 3 FUNCTIONAL DESCRIPTION EC 214 ................................................... 4 SPECIFICATIONS EC 214 .................................................................. 5 FUNCTIONAL DESCRIPTION EC 215 ................................................... 6 SPECIFICATIONS EC 215 .................................................................. 7 OPERATIONAL GUIDE ....................................................................... 8 CALIBRATION ................................................................................ 10 CONDUCTIVITY VS. TEMPERATURE CHART ......................................... 13 DETERMINATION OF THE TEMPERATURE COEFFICIENT OF A SOLUTION (EC 215 & EC 215R) ........................... 14 PROBE MAINTENANCE ................................................................... 15 ACCESSORIES ............................................................................... 16 WARRANTY ................................................................................... 18 CE DECLARATION OF CONFORMITY .................................................. 19 GENERAL DESCRIPTION EC 214 and EC 215 are digital bench-top multirange conductivity meters designed for simplicity of use in measuring electrical conductivity in liquids. Four ranges of conductivity measurements are provided to cover every application from deionized water to brine. The calibration is made simple through the easy-to-operate front panel knob for slope adjustment. The conductivity probe does not require re-calibration when switching from one range to another. The probe is made of glass with 4 platinum rings that are corrosion resistant. It is also suitable for measuring conductivity of liquids in small sample sizes, and comes with a 1 m (3.3') cable. The temperature effect can be compensated through a knob on the front panel of EC 214. With EC 215, the 4-ring probe has a built-in temperature sensor that automatically compensates for temperature changes in the liquid tested. The temperature coefficient can be adjusted from 0 to 2.5% through a knob on the front panel. It is also available a model with recorder output feature: EC 215R. 2 3 FUNCTIONAL DESCRIPTION EC 214 Range SPECIFICATIONS EC 214 0.0 to 199.9 µS/cm 0 to 1999 µS/cm 0.00 to 19.99 mS/cm 0.0 to 199.9 mS/cm 0.1 µS/cm 1 µS/cm 0.01 mS/cm 0.1 mS/cm ±1% Full Scale (excluding probe error) ±1% Full Scale Manual single point through front knob Manual from 0 to 50 C with ß fixed at 2%/ C HI 76300 platinum 4-ring conductivity probe with 1m (3.3') cable (included) 12 VDC adapter (HI710005 or HI710006 included) 0 to 50 C (32 to 122 F); 0-95% RH non-condensing 240x182x74 mm (9.4x7.1x2.9") 1.0 Kg (2.3 lb.) Resolution Accuracy (@20°C / 68°F) Typical EMC Deviation Calibration Temperature Compensation Probe Power Supply Environment 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) Liquid Crystal Display (LCD) Conductivity calibration knob 199.9 µS key, to select the range 0.0 to 199.9µS/cm 19.99 mS key, to select the range 0.00 to 19.99 mS/cm 199.9 mS key, to select the range 0.0 to 199.9mS/cm 1999 µS key, to select the range 0 to 1999µS/cm COND/ C key, to select conductivity reading or temperature setting for manual compensation Dimensions Weight Temperature setting knob for manual compensation ON/OFF switch Power adapter socket Probe connector 4 5 FUNCTIONAL DESCRIPTION EC 215 Range SPECIFICATIONS EC 215 0.0 to 199.9 µS/cm 0 to 1999 µS/cm 0.00 to 19.99 mS/cm 0.0 to 199.9 mS/cm 0.1 µS/cm 1 µS/cm 0.01 mS/cm 0.1 mS/cm ±1% Full Scale (excluding probe error) ±1% Full Scale Manual at single point, through front knob Automatic from 0 to 50 C with adjustable from 0 to 2.5%/ C HI 76303 platinum 4-ring conductivity probe with temperature sensor and 1m (3.3') cable 0 to 5VCC not isolated analog output - 20mA max Range Output 0.0 to 199.9µS/cm 0 to 5 VCC 0 to 1999µS/cm 0 to 5 VCC 0.00 to 19.99mS/cm 0 to 5 VCC 0.0 to 199.9mS/cm 0 to 5 VCC 0.1% of maximum displayed value (EC 215R only) ±2.5 mV (EC 215R only) 12 VDC power adapter (included included) included 0 to 50 C (32 to 122 F); 0-95% RH non-condensing 240x182x74 mm (9.4x7.1x2.9") 1.0 Kg (2.3 lb.) Resolution Accuracy (@20°C / 68°F) Typical EMC Deviation Calibration Temperature Compensation Probe (included) Analog Output (EC 215R only) 1) Liquid Crystal Display (LCD) 2) Conductivity calibration knob 3) 199.9 µS key, to select the range 0.0 to 199.9µS/cm 4) 19.99 mS key, to select the range 0.00 to 19.99 mS/cm 5) 199.9 mS key, to select the range 0.0 to 199.9mS/cm 6) 1999 µS key, to select the range 0 to 1999µS/cm 7) Temperature Coefficient setting knob 8) ON/OFF switch 9) Power adapter socket 10) Probe connector 11) Analog Output (EC 215R only) Analog Output Accuracy Analog Output Resolution Power Supply Environment Dimensions Weight 6 7 OPERATIONAL GUIDE Power connection Plug the 12VDC adapter (HI710005 or HI710006) into the power supply socket (#10 on page 4; #9 on page 6). Note: make sure the main line is protected by a fuse. Probe connection Connect the conductivity probe to the socket provided (#11 on page 4; #10 on page 6). Note: Make sure that the instrument has been calibrated before taking conductivity measurements (see calibration paragraph). Note: If possible, use plastic beakers to minimize EMC interferences. Note: If the display shows "1", there is an over-range condition. Select the next higher range. · Allow a few minutes for the reading to stabilize. The LCD will display the temperature compensated conductivity reading. TAKING CONDUCTIVITY MEASUREMENTS WITH EC 215 · switch the instrument on by pressing the ON/OFF key. · Immerse the probe in the solution submerging the holes of the sleeve (0.5 cm below). Tap the probe lightly on the bottom of the beaker to remove any air bubbles trapped inside the sleeve. · Adjust the "TEMPERATURE COEFFICIENT" knob to the temperature coefficient value of the solution (see determination of the temperature coefficient of a solution paragraph). TAKING CONDUCTIVITY MEASUREMENTS WITH EC 214 · switch the instrument on by pressing the ON/OFF key. · Immerse the probe in the solution submerging the holes of the sleeve (0.5 cm below). Tap the probe lightly on the bottom of the beaker to remove any air bubbles trapped inside the sleeve. Take the temperature of the solution with a CHECKTEMP or a glass thermometer. · Press the "COND/ C" key to select temperature setting. · Adjust the "TEMPERATURE" knob to display the temperature of the solution on the LCD. · Select the appropriate conductivity range. Note: If the display shows "1", there is an over-range condition. Select the next higher range. · Allow a few minutes for the reading to stabilize. The LCD will display the temperature compensated conductivity reading. · Press the "COND/ C" key to select conductivity reading. · Select the appropriate conductivity range. 8 9 CALIBRATION The instrument should be re-calibrated at least once a month, or when the probe is changed. INITIAL PREPARATION If you are measuring in the mS ranges, calibrate the meter using HI7030 (or HI8030) conductivity solution (12.88 mS @ 25 C) or HI7034 (or HI8034) conductivity solution (80 mS @ 25 C). For the µS ranges, use HI7031 (or HI8031) conductivity solution (1413 µS @25 C) when calibrating in the range from 0 to 1999 µS or HI7033 (or HI8033) conductivity solution (84 µS @ 25 C) when calibrating in the range from 0 to 199.9 µS. Choose a solution with a conductivity value close to the solution to be measured. Rinse the probe thoroughly in distilled water. This is to minimize contamination of the calibration solution and secure higher accuracy. When possible, use plastic beakers to minimize any EMC interferences. · Press the "COND/ C" key to select conductivity reading and select the appropriate range: "199.9 µS" for HI7033/HI8033, "1999µS" for HI7031/HI8031, "19.99 mS" for HI7030/HI8030, "199.9 mS" for HI7034/HI8034. Note: If the display shows "1", there is an over-range condition. Select the next higher range. · Allow a few minutes for the reading to stabilize and adjust the "CALIBRATION" knob to read (on the LCD) the value of the buffer solution at 25 C (77 F), e.g. 12.88 mS/cm. PROCEDURE FOR EC 214: · Pour a small quantity of the conductivity solution, e.g. HI7030 or HI8030 (12.88 mS/cm @ 25 C), into a plastic beaker. · Immerse the probe in the solution submerging the holes of the sleeve (0.5 cm below). Tap the probe lightly on the bottom of the beaker to remove any air bubbles trapped inside the sleeve. Take the temperature of the solution with a CHECKTEMP or a glass thermometer. · Press the "COND/ C" key to select temperature setting. · Adjust the "TEMPERATURE" knob to display the temperature of the solution on the LCD. · All subsequent measurements will be referenced to 25 C (77 F). · To reference the measurements to 20 C (68 F), adjust the "CALIBRATION" knob to read (on the LCD) the value of the buffer solution at 20 C (68 F), e.g. 11.67 mS/cm. See conductivity vs. temperature chart. · Calibration is now complete and the instrument is ready for use. 0 703 HI PROCEDURE FOR EC 215: · Pour a small quantity of the conductivity solution, e.g. HI7030 or HI8030 (12.88 mS/cm @ 25 C), into a plastic beaker. · Immerse the probe in the solution submerging the holes of the sleeve (0.5 cm below). Tap the probe lightly on the bottom of the beaker to remove any air bubbles trapped inside the sleeve. · Adjust the "TEMPERATURE COEFFICIENT" knob to 2%/ C. 10 11 HI 7 03 0 · Select the appropriate range: "199.9 µS" for HI7033/HI8033, "1999µS" for HI7031/HI8031, "19.99 mS" for HI7030/HI8030, "199.9 mS" for HI7034/HI8034. Note: If the display shows "1", there is an over-range condition. Select the next higher range. · Allow a few minutes for the reading to stabilize and adjust the "CALIBRATION" knob to read (on the LCD) the value of the buffer solution at 25 C (77 F),e.g. 12.88 mS/cm. CONDUCTIVITY VERSUS TEMPERATURE CHART The conductivity of an aqueous solution is the measure of its ability to carry an electrical current by means of ionic motion. The conductivity invariably increases with increasing temperature. It is affected by the type and number of ions in the solution and by the viscosity of the solution itself. Both parameters are temperature dependent. The dependency of conductivity on temperature is expressed as a relative change per degree Celsius at a particular temperature, commonly as percent per C. Since a small difference in temperature causes a large change in conductivity, the readings are usually normalized at 25 C. C F HI 7030 HI 8030 (µS/cm) · All subsequent measurements will be referenced to 25 C (77 F). · To reference the measurements to 20 C (68 F), adjust the "CALIBRATION" knob to read (on the LCD) the value of the buffer solution at 20 C (68 F), e.g. 11.67 mS/cm. See conductivity vs. temperature chart. · Calibration is now complete and the instrument is ready for use. HI 7031 HI 8031 (µS/cm) HI 7033 HI 8033 (µS/cm) HI 7034 HI 8034 (µS/cm) HI 7035 HI 8035 (µS/cm) HI 7039 HI 8039 (µS/cm) 0 5 10 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 41 50 59 60.8 62.6 64.4 66.2 68 69.8 71.6 73.4 75.2 77 78.8 80.6 82.4 84.2 86 87.8 7150 8220 9330 10480 10720 10950 11190 11430 11670 11910 12150 12390 12640 12880 13130 13370 13620 13870 14120 14370 776 896 1020 1147 1173 1199 1225 1251 1278 1305 1332 1359 1386 1413 1440 1467 1494 1521 1548 1575 64 65 67 68 70 71 73 74 76 78 79 81 82 84 86 87 89 90 92 94 48300 53500 59600 65400 67200 68500 69800 71300 72400 74000 75200 76500 78300 80000 81300 83000 84900 86300 88200 90000 65400 7 ...