User manual EUTECH INSTRUMENTS ECOSCAN SALT 6 METER

[. . . ] Instruction Manual Salt 6 Hand-held Salinity Meter 68X243619 Technology Made Easy . . . Rev 1 01/04 Preface This manual serves to explain the use of the Salt 6 salinity meter. It functions in two ways: first as a step by step guide to help you operate the meter; second, it serves as a handy reference guide. This manual is written to cover as many anticipated applications of the Salt 6 salinity meter as possible. If there are doubts in the use of this meter, please do not hesitate to contact the nearest Eutech Instruments/ Oakton Instruments Authorized Distributor. [. . . ] For example, if you previously calibrated your conductivity meter at 2. 5% and you recalibrate at 1. 0, the meter will replace the old calibration data (2. 5%). To completely recalibrate your meter, or when you use a replacement probe, it is best to clear all calibration data. To erase all calibration data completely, see Section 6. 5 ­ Restore Factory Default Values. 11 Instruction Manual Salt 6 4. 2 Preparing the Meter for Calibration Before starting calibration, make sure you are in the correct measurement mode. Ensure that you use new Sodium Chloride standard solutions during calibration. Do not reuse standard solutions as it may be contaminated and affect the calibration and accuracy of measurements. Always rinse the probe with either deionized water or rinse solution before and after each calibration/sample measurement to avoid cross-contamination. NOTE: These meters are factory set to a temperature coefficient of 2. 1% per °C. If you need to normalize to a value other than 25 °C, see Section 6. 3 ­ Normalization Temperature. 12 Instruction Manual Salt 6 4. 3 Calibration for Salinity (% or ppt) The following example shows calibration sequence to 2. 5% calibration standard. Rinse the probe thoroughly with de-ionized water or a rinse solution, then rinse with a small amount of calibration standard. The [CA] indicator will appear for 1. 5 seconds, and a value will appear flashing. HOLD ENTER Measurement Mode % 3) CAL % 4) % NOTE: To exit calibration without confirmation, press CAL key again to go back to measurement mode. 5) Wait for the value to stabilize and press or key and adjust the value to the calibration standard used. To use manual temperature compensation, you need to enter the temperature value of your process into the meter. This is the value at which the reading will manually temperature compensates. 1) Make sure that the phono jack (for temperature measurement) is disconnected from the meter. Switch on the meter and if necessary, press MODE key to select temperature measurement mode. start temperature °C CAL °C 2) 3) 4) 5) The "CA" will appear momentarily and a temperature value will starting flashing. Wait for the value to stabilize and press or key and adjust the value to the reference thermometer used. The [CO] indicator will appear for 1. 5 seconds, and the reading will stop flashing. The meter returns to measurement mode. HOLD ENTER °C 6) °C 16 Instruction Manual Salt 6 5. 3 1) Taking Measurements Rinse the probe with de-ionized or distilled water before use to remove any impurities adhering to the probe body. To avoid contamination or dilution of your sample, rinse probe with a small volume of your sample liquid. NOTE: When dipping the probe into the sample, take care to ensure that the liquid level is above its upper steel band. See Figure in Section 3. 4. To take readings: 2) 3) 4) 17 Instruction Manual Salt 6 5. 4 HOLD Function % This feature lets you freeze the display for a delayed observation. [. . . ] Make sure that the probe is immersed into the salt solution which is in the range of interest. Check the temperature and make sure that it is within the acceptable range. If message persists, return unit*. Err 1 Salinity calibration error The cal key is pressed during Ur or Or. Err. 2 Temperature calibration error. Auto calibration is performed outside the temperature range (0 ­ 50 °C). * See Sections on "Warranty" and "Return of Items". 27 Instruction Manual Salt 6 If an error message appears, switching off the meter and switching it on again may eliminate the error message. If error persists, or the meter shows incorrect values, return the meter. [. . . ]