User manual EUTECH INSTRUMENTS ALPHA COND 550 CONDUCTIVITY MONITOR

[. . . ] Alpha CON 550 Conductivity Monitor mS/µS/ºC/ºF meter Preface This manual serves to explain the use of the Alpha-CON 550 Industrial Conductivity Monitor. The manual functions in two ways, firstly as a step by step guide to help the user operate the instrument. Secondly, it serves as a handy reference guide. This instruction manual is written to cover many anticipated applications of the Alpha-CON 550 monitor. [. . . ] The display briefly shows the cell type ("2 CELL" or "4 CELL") to which the monitor is configured (Refer section 5. 5 for cell type settings) Next, the last configured cell constant (k) is displayed in the upper display. Use or keys to adjust the cell constant to mach the cell constant of the conductivity probe. Press ENT key to confirm the new cell constant value. Rinse the electrode in de-ionized water and then rinse with the calibration standard. Immerse the probe in calibration standard solution intended for calibration and swirl gently to create a homogenous sample. Make sure there are no any air-bubbles trapped in the sensor. 3 The upper display shows the currently measured conductivity value of the solution based on last calibration (if any). The lower display shows uncalibrated (default) reading of the solution. The `READY' annunciator appears when the reading is stable. Once the reading stabilizes press the or key to adjust the upper display value to that of the standard solution. Press the ENT key to accept the value. 15 Instruction Manual NOTES: · Alpha-CON 550 The acceptable calibration window is ±40% of the displayed (default) value. For example, if the display is 1000 µS, the values to which it can be adjusted is 600 to 1400 µS. If the conductivity reading of the solution is not within 10% to 100% of the full scale of the selected measuring range, calibration error occurs; LCD displays "ERR" and flash electrode annunciator. If the conductivity reading of the solution is beyond the selected measuring range, calibration error occurs; LCD displays "Or" (over range), "ERR" and flashes electrode annunciator. If calibration error occurs, exit form calibration mode by pressing and keys simultaneously. · · · 4 Calibration is completed. The display shows the calibration factor (FCt). This serves as an indication of the effectiveness of the sensor which will degrade with time and usage. An effective sensor should have a calibration factor of 0. 60 to 1. 40 Press ENT key to return to measurement mode. NOTES: · If you use a 2-cell conductivity sensor, make sure that the pin 1 and 2 are shorted and pin 3 and 4 are shorted on the J10 connector. (Refer section 2. 3. 3 for more details) When calibrating with manual temperature compensation, the monitor automatically changes from the preset process temperature to the calibration temperature. After leaving the Calibration mode, the monitor switches back to the process temperature (for setting the calibration temperature and the process temperature, see section 5. 3) · WARNING: If you change the measuring range of the monitor after calibration is done, the monitor will reset back to its factory default calibration. 16 Instruction Manual Alpha-CON 550 5. Setup Mode 5. 1 Enter Setup mode The setup mode allows you to customize the settings of the conductivity monitor to suite your requirements. While in measurement mode, press the ENT key to access setup mode. LCD shows `SETUP' mode indicator and the first page of setup (rAng ­ Range settings). [. . . ] operating range Maximum Relative Humidity Universal +9 V DC Adaptor and 24V DC Supply 96mm x 96mm x 66 mm 210g 0 to 40 oC 80% up to 31 oC decreasing linearly to 50% at 40oC Resolution: 0. 01 µS/cm 0. 1 µS/cm 1 µS/cm 0. 01 mS/cm 0. 1 mS/cm ± 1% of full scale reading The effective measuring range and the total system accuracy depend on the sensor used with the monitor. Please refer respective sensor documentation. -10. 0 to +125. 0 oC +14. 0 to +257. 0 oF 0. 1 oC 0. 1 oF ±0. 5 oC ±1. 0 oF 2 wire / 3 wire - Pt100 or Pt1000 (Jumper Selectable) Automatic or Manual (reference at 25oC) 1 point ±40% of default reading 10% to 100% of the selected measuring range ± 10 °C/ ± 18 °F 7 segments display with symbols for status information Screw Terminal (3. 5mm pitch) 8-pin & 2-pin terminal blocks, DC power connector (1. 2mm diameter) EN 61 36 EN 61326 25 Instruction Manual Alpha-CON 550 Calibration Default Settings (CAL dEF) Conductivity Calibration factor Reset to 1. 000 Factory Default Settings (FCt dEF) Conductivity Calibration factor Cell constant Cell type Measuring range Line resistance Temperature Unit of measurement Temperature compensation Temperature coefficient Temperature coefficient type MTC (ATC Off) Reset to 1. 000 1. 00 2-cell 0 to 2000 µS/cm 0. 000 oC ATC On 2. 1% (Both process & calibration temp. coefficients) Linear 25 oC (Both process & calibration temperature) 26 Instruction Manual Alpha-CON 550 7. [. . . ]