Revision: 02/2022
Copyright © 1994 – 2022
Campbell Scientific, Inc.
Страница 1: ...Revision 02 2022 Copyright 1994 2022 Campbell Scientific Inc...
Страница 2: ...ounting 8 7 3 Wiring 8 7 4 Programming 9 7 4 1 EC measurement 10 7 4 2 Ionization correction 10 7 4 3 Temperature measurement 10 7 4 4 Correct EC measurement for temperature errors 11 7 4 5 Output pro...
Страница 3: ...8 4 Schematics 14 9 Maintenance 15 Appendix A Importing Short Cut code into CRBasic Editor 16 Table of Contents ii...
Страница 4: ...f the CS574A such as leaving it in the sun and then submersing it in a cold stream may cause irreparable damage l Do not use the CS574A with long cable lengths in an electrically noisy environment 3 I...
Страница 5: ...x type CS574A or locate the sensor in the Sensors Water Quality CS547A Conductivity and Temperature Probe folder Double click on the CS547A Conductivity and Temperature Probe Type the Cell Constant Kc...
Страница 6: ...see how the sensor is to be wired to the A547 and data logger 5 In Output Setup type the scan rate meaningful table names and Data Output Storage Interval Click Next CS574A Conductivity and Temperatur...
Страница 7: ...ion is a simple physical property but measurements can be difficult to interpret This manual instructs the user how to make EC measurements with the CS574A Accuracy specifications apply to measurement...
Страница 8: ...ge This electrode configuration eliminates the ground looping problems associated with sensors in electrical contact with earth ground Temperature is measured with a thermistor in a three wire half br...
Страница 9: ...d length as cable cannot be added to existing probes Depth rating 305 m 1000 ft maximum pH range Solution pH of less than 3 0 or greater than 9 0 may damage the stainless steel housing Electrodes Pass...
Страница 10: ...to 50 C Accuracy1 Worst case 0 4 C 24 to 48 C 0 9 C 35 to 50 C Interchangeability error 0 10 C 0 to 50 C 0 20 C at 10 C 0 30 C at 20 C 0 40 C at 30 C 0 50 C at 40 C Steinhart Hart equation error 0 01...
Страница 11: ...rials Mount the probe so that it avoids contact with abrasives and moving objects Because of slight positive buoyancy either secure the sensor to a fixed or retractable object or use the weighted cabl...
Страница 12: ...r A Short Cut tutorial is available in QuickStart p 1 If you wish to import Short Cut code into CRBasic Editor to create or add to a customized program follow the procedure in Importing Short Cut code...
Страница 13: ...nce 3 Subtract the resistance error Eq 2 p 10 Rs Rs C_length 0 000032 0 005 Eq 2 Where C_length is the cable length in feet printed on the sensor cable 4 Calculate the EC Eq 3 p 10 Ct 1 Rs KC Eq 3 Whe...
Страница 14: ...generally produces values within 2 to 3 of a measurement made at 25 C Cond Ct 100 Temp_C 25 TempCoef 100 Eq 6 Where Cond is EC in mS cm corrected for temperature Temp_C is the value returned by the Th...
Страница 15: ...o 50 0 mS cm 1 the higher value being close to the EC of sea water USGS Water Supply Paper 1473 p 102 8 1 3 Factory calibration The CS574A is shipped with a cell constant calibrated in a 0 01 molal KC...
Страница 16: ...Download the measurement program from www campbellsci com downloads cs547a program examples in the data logger and record the Ct at 25 C This number will be C25 in the formula in Step 4 3 Bring the s...
Страница 17: ...S cm 1 FIGURE 8 2 Plot of ideal and actual correction between 0 44 and 7 0 mS cm 1 8 4 Schematics The CS574A schematic is provided in FIGURE 8 3 p 15 and the A547 schematic is provided in FIGURE 8 4 p...
Страница 18: ...8 4 A547 Interface circuit diagram 9 Maintenance Routine maintenance includes thoroughly cleaning the orifice of the CS574A probe with the black nylon brush provided and some soapy water Rinse thorou...
Страница 19: ...refinement NOTE Once the file is edited with CRBasic Editor Short Cut can no longer be used to edit the program it created 2 To add the Short Cut wiring information into the new CRBasic program open t...
Страница 20: ...ther manufacturer s products that are resold by Campbell Scientific are warranted only to the limits extended by the original manufacturer Refer to www campbellsci com terms warranty for more informat...
Страница 21: ...ion or Repair Reference number contact your CAMPBELL SCIENTIFIC regional office Please write the issued number clearly on the outside of the shipping container and ship as directed For all returns the...
Страница 22: ...rohibit climbing by other persons Take reasonable precautions to secure tripod and tower sites from trespassers l Use only manufacturer recommended parts materials and tools Utility and Electrical l Y...
Страница 23: ...nfo campbellsci fr www campbellsci fr Germany Location Phone Email Website Bremen Germany 49 0 421 460974 0 info campbellsci de www campbellsci de India Location Phone Email Website New Delhi DL India...
