1. Manuals
  2. Brands
  3. Campbell Manuals
  4. Measuring Instruments
  5. CS525
  6. Instruction manual

Campbell CS525 Instruction Manual

Isfet ph probe
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
CS525 ISFET pH Probe
Revision: 10/11
C o p y r i g h t
©
2 0 0 9 - 2 0 1 1
C a m p b e l l
S c i e n t i f i c ,
I n c .

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CS525 and is the answer not in the manual?

Questions and answers

Related Manuals for Campbell CS525

Summary of Contents for Campbell CS525

  • Page 1 CS525 ISFET pH Probe Revision: 10/11 C o p y r i g h t © 2 0 0 9 - 2 0 1 1 C a m p b e l l S c i e n t i f i c ,...
  • Page 3 Warranty The CS525 ISFET pH Probe is warranted for a period of 6 months subject to the provisions of the following general warranty. “PRODUCTS MANUFACTURED BY CAMPBELL SCIENTIFIC, INC. are warranted by Campbell Scientific, Inc. (“Campbell”) to be free from defects in...
  • Page 4 SCIENTIFIC, INC., phone (435) 227-2342. After an applications engineer determines the nature of the problem, an RMA number will be issued. Please write this number clearly on the outside of the shipping container. Campbell Scientific's shipping address is: CAMPBELL SCIENTIFIC, INC.

  • Page 5: Table Of Contents

    4.2.2 Programming for calibration............6 5. Calibration ..............6 6. Maintenance ..............6 6.1 Cleaning....................7 7. Troubleshooting ............8 Appendix A. Calibration ............... A-1 Figure 6-1. Tip of the CS525 Probe................7 Tables 3-1. CR800, CR850, CR1000, and CR3000 Wiring........3 3-2. CR200(X) Series Wiring .................4...

  • Page 7: Introduction

    EMC standard IEC61326:2005. with This sensing element is driven by an electronic circuit that is built into the handle of the probe. The CS525 can only perform up to its specifications if...

  • Page 8: Specifications

    1.1 Initial Inspection and Handling Guidelines Upon receipt of the CS525, inspect the packaging for any signs of shipping damage, and, if found, report the damage to the carrier in accordance with policy. The contents of the package should also be inspected and a claim filed if any shipping related damage is discovered.

  • Page 9: Installation And Wiring

    (power), white (signal reference), and clear (shield). 3.1 Preparation for Use The CS525 is shipped dry. Before the probe can be calibrated, soak it in 7 pH buffer solution for 15 minutes. Unlike many glass-bulb type pH sensors, the CS525 ISFET pH probe can be installed without regard to orientation.

  • Page 10: Programming

    Generic Measurements. SCWIN is the easiest and typically the preferred method for programming the datalogger. SCWIN generates a wiring diagram that shows how to connect the CS525 to your Campbell Scientific datalogger. The sections that immediately follow are for CRBasic users.

  • Page 11: Cr800, Cr850, Cr1000, And Cr3000 Programming

    CS525 ISFET pH Probe ‘CR200(X) Series ‘Declare the variable for the pH measurement Public pHmV ‘Read sensor every 60 seconds BeginProg Scan(60,sec) ‘Turn power on, delay for 30000 microseconds, then measure sensor ExDelSE(pHmV,1,1,Ex1,mV5000,30000,1,0.0) NextScan EndProg 4.2.1.2 CR800, CR850, CR1000, and CR3000 Programming For the CR800, CR1000 and CR3000 dataloggers, Instruction VoltSe is used to read Single-ended analog sensors.

  • Page 12: Calibration

    6. Maintenance Campbell Scientific recommends that the CS525 be cleaned and calibrated periodically to insure accurate readings. If the CS525 is not operating properly and requires return to Campbell Scientific, the customer must get an RMA (returned material authorization) and fill out the Declaration of Hazardous Material and Decontamination form.

  • Page 13: Cleaning

    CS525 ISFET pH Probe The CS525 has no user-serviceable parts. Cable can be damaged by abrasion, rodents, sharp objects, twisting, crimping or crushing and pulling. Take care during installation and use to avoid cable damage. 6.1 Cleaning It is possible that contamination on the diaphragm will block the built-in reference electrode.

  • Page 14: Troubleshooting

    CS525 ISFET pH Probe 7. Troubleshooting The most common causes for erroneous pH data include: • poor sensor connections to the datalogger • damaged cables • scratched chip Problem: Output signal is at its maximum value. Possible reason: • Probe is not in fluid.

  • Page 15: A. Calibration

    8. Change the value in pH4record to -1. 9. Change the value in pHcal to -1. 10. The CS525 is now ready to be place in the solution to be measured. The simple example program to provide this two point pH calibration process...
  • Page 16 Appendix A. Calibration Battery (Batt_volt) VoltSe (pHmV,1,mV5000,1,False,0,_60Hz,1,0) If pH4record = -1 Then pH4mV = pHmV pH4record = 0 EndIf If pH7record = -1 Then pH7mV = pHmV pH7record = 0 EndIf If pHcal = -1 Then pHmult = 3/(pH7mV - pH4mV) pHoffset = 7 - pHmult * pH7mV pHcal = 0 EndIf...
  • Page 18 Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com • info@campbellsci.com Campbell Scientific Africa Pty. Ltd. (CSAf) PO Box 2450 Somerset West 7129 SOUTH AFRICA www.csafrica.co.za • cleroux@csafrica.co.za Campbell Scientific Australia Pty. Ltd. (CSA)

Table of Contents