User manual EUTECH INSTRUMENTS ION 700

[. . . ] 6 Ion Calibration (Ion 700 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SETUP FUNCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5. 1 5. 2 5. 3 5. 4 5. 5 5. 6 5. 7 5. 8 P1. 0 CAL (Calibration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 P2. 0 ELE (Electrode Information). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Note: The meter will automatically return to measurement mode upon successful completion of the number of specified calibration points. To specify a different number of pH calibration points see Section 5. 6. Additional notes: A single point (offset) calibration is only allowed with pH 7. 00 or pH 6. 86 buffers. When the first calibration value is accepted during a new calibration, all prior calibration values are erased. at any time to abort calibration and return to measurement 3. 2 Temperature Calibration The thermistor sensor used for automatic temperature compensation and measurement is both accurate and stable, so require frequent calibration isn't required. Temperature calibration is recommended upon electrode replacement, whenever the temperature reading is suspect, or if matching against a certified thermometer is desired. 1) Connect the temperature probe to the meter and place into a solution with a known accurate temperature such as a constant temperature bath. Note: To adjust the manual temperature compensation (MTC) value, do not connect the temperature probe. The primary display shows the measured temperature while the secondary display shows the factory default temperature. The meter allows an adjustable maximum value of ± 5ºC º (or ± 0. 9 F) from the factory default temperature. 5 3. 3 Millivolt (mV) Offset Adjustment Oxidization Reduction Potential (ORP or Redox) is not a precise measurement, but is useful as a relative indicator. As such, mV offset adjustment is not meant to enhance accuracy, but rather to make readings comparable to a reference. Commercial ORP solutions are often used as a check standard in which a meter/electrode system are verified to be close to a given value, instead of being used as a calibration standard in which adjustments are made in an attempt to match the ORP value. as needed to select mV 2) Dip the ORP electrode into a solution with a known mV value (i. e. The primary display shows the relative millivolt value (R. mV) while the secondary display shows the factory default mV value. The meter allows an adjustable maximum value of ± 150 mV from the factory default mV value. 3. 4 Ion Calibration (Ion 700 Only) The Ion 700 can measure ion concentration such as ammonia or fluoride when using an ion selective electrode (ISE) for the specific ion of interest. The available ion calibration values are 0. 10, 1. 0, 10. 0, 100. 0, and 1000 parts per million (ppm). Choose a minimum of 2 consecutive values for calibration and prepare the corresponding ion calibration solutions. For best results always begin with your lowest standard value, followed by the next lowest standard. 6 1) Connect the ISE and press as needed to select ppm. Note: The primary reading will show "- - - -" without a stored ion calibration. or to match the primary display to your corresponding 3) Press ion calibration value (0. 10, 1. 0, 10, etc). The primary display will show the next highest calibration standard value. [. . . ] If repair or adjustment is necessary and has not been the result of abuse or misuse within the designated period, please return ­ freight prepaid ­ and correction will be made without charge. Eutech Instruments/Oakton Instruments will determine if the product problem is due to deviations or customer misuse. The warranty on your instrument shall not apply to defects resulting from: · · · Improper or inadequate maintenance by customer Unauthorized modification or misuse Operation outside of the environment specifications of the products 10. RETURN OF ITEMS Authorization must be obtained from our Customer Service Department or authorized distributor before returning items for any reason. [. . . ]