User manual EUTECH INSTRUMENTS PC 700

[. . . ] Instruction Manual PC 700 pH/mV/Conductivity/ºC/ºF Bench Meter Technology Made Easy . . . Part of Thermo Fisher Scientific 68X541704 Rev 2 Sep. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GETTING STARTED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. 1 2. 2 2. 3 Keypad Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Note: When an offset has been stored successfully, R. mV replaces mV. 5. CONDUCTIVITY AND TDS CALIBRATION 5. 1 Automatic or Manual Calibration The PC 700 is capable of automatic or manual calibration for conductivity, and manual calibration for TDS. In the automatic calibration mode, the meter will automatically select one of (4) conductivity calibration standard values depending on the range and normalization temperature being used (TABLE 1). 6 If you only use calibration standards that are listed in TABLE 1, automatic calibration is recommended. If you intend to calibrate with one or more standards that are not listed in TABLE 1, the PC 700 must be set for manual calibration instead. 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 5. 2 Single or Multi-Point Calibration Use Single-Point Calibration to apply a single calibration value across all ranges. 7 Use Multi-Point Calibration for individual calibration in each range. 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. 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 9. 14). Rinse or immerse the probe before calibration and between samples with clean water (deionized water is ideal). The PC 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). 5. 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. 8 4) When the READY indicator appears, press to accept. After range 5, automatic ranging is resumed. For example, a reading of 465 S will automatically settle in range 3 (r3). Using manual range advancement this will read as 0. 47 mS in range 4 (r4), and 0. 5 mS in range 5 (r5). Automatic ranging is typically used since this will always provide the best resolution. 10 7. HOLD FUNCTION For prolonged observation of a reading, press during measurement mode to freeze the display. To release the held value and resume measurement, press memory by pressing . [. . . ] Enter the calculated temperature coefficient into the meter. The calculated temperature coefficient will now be applied to all the meter readings. 18 12. REPLACEMENTS AND ACCESSORIES Part number Ordering Code Item Description Eutech Instruments ECPC70043S 01X543601 ECFC7252201B ECFC7252101B CONSEN9501D 93X546101 93X546102 60X030130 ECCON10BS ECCON84BT ECCON447BS ECCON500BT ECCON1413BT ECCON1413BS ECCON2764BT ECCON2764BS ECCON5000BT ECCON1288BT ECCON15000BS ECCON1118BT Oakton Instruments 35413-00 35413-20 35641-51 59001-70 35608-74 35608-72 35608-76 35608-78 35615-07 35653-09 00653-16 00653-47 00653-18 35653-11 00653-20 35653-12 00606-10 35653-13 - PC 700 with pH electrode (ECFC7252101B / 5900170), conductivity/temp electrode (CONSEN9501D / 35608-74), integral stand, 100/240 VAC PC 700 with integral stand, 100/240 VAC Plastic, Gel-filled, Double-junction pH electrode Plastic, Gel-filled, Single-junction pH electrode Replacement conductivity/temp electrode, k = 1. 0 Epoxy/platinum conductivity/temp electrode, k = 0. 1 Glass/platinum conductivity/temp electrode, k = 1. 0 Epoxy/platinum conductivity/temp electrode, k = 10. 0 SMPS, 100/240 VAC, 9V, 6W power adapter 10 S, (20) x 20mL Sachets 84 µS, 480 mL bottle* 447 S, 480 mL bottle 500 S, 480 mL bottle 1413 S, 480 mL bottle* 1413 S, (20) x 20mL Sachets* 2764 S, 480 mL bottle 2764 S, (20) x 20mL Sachets 5. 0 mS, 480 mL bottle 12. 88 mS, 480 mL bottle* 15 mS, (20) x 20mL Sachets 111. 8 mS, 480 mL bottle* *Automatic Calibration Standard Value at 25 ºC 19 13. TROUBLESHOOTING GUIDE PROBLEM No display CAUSE Main power not switched on. Temperature of sample is changing. SOLUTION Switch on the power supply. [. . . ]