User manual EUTECH INSTRUMENTS CON 700 REV 2

[. . . ] 6 Automatic Conductivity Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . 6 Manual Conductivity & TDS Calibration Procedure. . . . . . . . . . . . . . . . . 7 Temperature Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MEASUREMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] If you intend to calibrate with one or more standards that are not listed in TABLE 1, the CON 700 must be set for manual calibration instead. 4 The factory default is automatic conductivity calibration. There is no automatic calibration value available for conductivity range 1. Range # r1 r2 r3 r4 r5 Conductivity Range 0. 00 ­ 20. 00 S 20. 1 ­ 200. 0 S 201 ­ 2000 S 2. 01 ­ 20. 00 mS 20. 1 ­ 200. 0 mS TABLE 1 Automatic Calibration Values Normalization Temperature 25 ºC None 84 S 1413 S 12. 88 mS 111. 8 mS 20 ºC None 76 S 1278 S 11. 67 mS 102. 1 mS Range # r1 r2 r3 r4 r5 TDS Range (using 0. 5 TDS factor) 0 ­ 10. 00 ppm 10. 1 ­ 100. 0 ppm 101 ­ 1000 ppm 1. 01 ­ 10. 00 ppt 10. 1 ­ 100 ppt Automatic Calibration Values none none none none none 4. 2 Single or Multi-Point Calibration Use Single-Point Calibration to apply a single calibration value across all ranges. This will restrict an individual calibration so that it is applied to one range only. When using multi-point calibration, perform a calibration in each range that you expect to use for best results. 5 The factory default is Single-Point Calibration. 4. 3 General Calibration Tips For best results, periodic calibration with known accurate standards is recommended. If multiple calibration points are used in the same range, the most recent one will replace the previous one. When the electrode is replaced, it is best to clear the calibration to the factory default values (see Section 6. 13). Rinse or immerse the probe before calibration and between samples with clean water (deionized water is ideal). The CON 700 has non-volatile memory which will retain all calibration values, as well as meter settings and memory values upon meter shut down or unexpected power loss. To protect from erroneous calibrations, the allowable tolerance is ±40% of the factory default value. Low conductivity standard solutions (less than 20 µS) are unstable and are very temperature dependent. As a result, reproducible calibration results are challenging in lowest measurement range #1 (0. 00 to 20. 0 µS). 4. 4 Automatic Conductivity Calibration Procedure 1) 2) 3) Press as needed to select conductivity (S or mS). Dip the electrode into the conductivity standard and press . The primary display will show the factory default value, while the secondary display will lock on the appropriate automatic standard value from TABLE 1. The primary reading will flash briefly before returning to measurement mode upon successful calibration. 4) 6 4. 5 Manual Conductivity & TDS Calibration Procedure 1) 2) 3) as needed to select conductivity (S or mS) or TDS Press (ppm or ppt) calibration. Dip the electrode into the calibration standard and press Provide stirring for best results. The primary display will show the current reading, while the secondary display will be the factory default value. The primary reading will flash briefly before returning to measurement mode upon successful calibration. 4. 6 Temperature Calibration The thermistor sensor used for automatic temperature compensation and measurement is accurate and stable, so frequent calibration isn't required. Temperature calibration is recommended upon probe replacement, whenever the temperature reading is suspect, or if matching against a certified thermometer is desired. 1) Place the probe into a solution with a known accurate temperature such as a constant temperature bath. The primary display shows the 2) Press measured temperature while the secondary display shows the factory default temperature. [. . . ] 0. 0 to 100 ºC / 32. 0 to 212. 0 ºF, 0. 0 to 80 ºC / 32. 0 to 176. 0 ºF with supplied cell 0. 1 ºC / 0. 1 ºF ± 0. 5ºC / ± 0. 9ºF Offset in 0. 1 º increments; Offset range: ± 5. 0 ºC / ± 9. 0 ºF 0. 0 to 10. 00 per ºC Yes Yes 100 data sets 8-pin DIN AC/DC 9V, 6W Adapter (100/240 VAC, 50-60Hz) meter only = 175 (L) x 155 (W) x 69 (H) 17 12. WARRANTY This meter is supplied with a warranty against significant deviations in material and workmanship for a period of THREE years from date of purchase whereas probe with a SIX month warranty. 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: · · · 13. Improper or inadequate maintenance by customer Unauthorized modification or misuse Operation outside of the environment specifications of the products RETURN OF ITEMS Authorization must be obtained from our Customer Service Department or authorized distributor before returning items for any reason. [. . . ]