Endress+Hauser Stamolys CA71CODcr Operating Instructions Manual
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Endress+Hauser Stamolys CA71CODcr Operating Instructions Manual

Photometric analytical system for determining the chemical oxygen demand following the din dichromate method
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Operating Instructions
Stamolys CA71CODcr
Photometric analytical system for determining the chemical
oxygen demand following the DIN dichromate method
BA458C/07/EN/06.10
71115573
Valid of:
Software version 01.00.04

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Summary of Contents for Endress+Hauser Stamolys CA71CODcr

  • Page 1 Operating Instructions Stamolys CA71CODcr Photometric analytical system for determining the chemical oxygen demand following the DIN dichromate method BA458C/07/EN/06.10 71115573 Valid of: Software version 01.00.04...
  • Page 2 Brief overview Stamolys CA71CODcr Brief overview a0012419 Fig. 1: Analyzer (cabinet version without hoses) Reagent pump (P2), inlet from canister Rinse outputs (wastewater, chromate waste, Display and temperature indicator overflow) Serial interface RS 232 Reagents, standard Reactor unit Valve V3...

  • Page 3: Table Of Contents

    Stamolys CA71CODcr Table of contents Safety instructions ....4 Trouble-shooting ....35 Designated use .

  • Page 4: Safety Instructions

    Safety instructions Stamolys CA71CODcr Safety instructions Designated use The analyzer is a compact photometric analysis system. In particular, CA71 is designated for: • Monitoring sewage treatment plant outlets • Monitoring the sewage treatment plant inlet • Estimating the oxygen demand in the aeration basin •...

  • Page 5: Safety Messages And Their Meaning

    Stamolys CA71CODcr Safety instructions Safety messages and their meaning 1.5.1 Generals The structure, signal words and safety colors of the signs comply with the specifications of ANSI Z535.6 ("Product safety information in product manuals, instructions and other collateral materials"). Safety message structure Meaning This symbol alerts you to a dangerous situation.

  • Page 6: Identification

    Identification Stamolys CA71CODcr Identification Device designation 2.1.1 Nameplate Compare the (extended) order code on the nameplate (on the analyzer) to the product structure and your order. You can read the following information from the nameplate: • Order code • Extended order code (=order code from the product structure) •...

  • Page 7: Certificates And Approvals

    Stamolys CA71CODcr Identification Certificates and approvals 4 approval 2.3.1 Declaration of conformity The product meets the requirements of the harmonized European standards. It thus complies with the legal requirements of the EC directives. The manufacturer confirms successful testing of the product by affixing the 4 symbol.

  • Page 8: Installation

    Installation Stamolys CA71CODcr Installation Incoming acceptance, transport, storage • Make sure the packaging is undamaged! Inform the supplier about any damage to the packaging. Keep the damaged packaging until the matter has been settled. • Make sure the contents are undamaged! Inform the supplier about damage to the contents.
  • Page 9 Stamolys CA71CODcr Installation 3.2.2 Connecting the sample line 145 (5.71) 4 x Ø 6.6 (0.26) 60 (2.36) 27 (1.06) 10 (0.39) 3 x Ø 28/20 (1.1/0.79) 115 (4.53) Ø 34/25 (1.34/0.98) 4 x Ø 5.5/10.4 (0.22/0.41) Ø 56 (2.2) Ø 50H7 (1.97H0.28) M20x1.5...

  • Page 10: Installation Instructions

    Installation Stamolys CA71CODcr a0001367 a0001366 a0001365 Fig. 5: One analyser Fig. 6: Two analysers Fig. 7: Three analysers M 3x12 (0.47") M 3x12 (0.47") M 3x12 (0.47") M 3x35 (1.38") M 3x20 (0.79") Mark 3 Mark 1 Mark 2 Installation instructions To install the analyzer at the intended location, proceed as follows: Mount the analyzer and secure it to a vibration-free wall using screws (Ø6 mm / 0.24").

  • Page 11: Installation Examples

    Stamolys CA71CODcr Installation Secure the hose boxes in the appropriate pump holders: Sample/acid pump, left (rear position), reagent pump, right (center position). The direction of flow of the sample and reagent must be counterclockwise. a0012351 a0012676 Fig. 9: Pump 1, top view Fig.

  • Page 12: Post-Installation Check

    Installation Stamolys CA71CODcr 3.4.2 Stamoclean CAT221 A complete measuring system comprises: • a CAT221 filter system • a collecting vessel • a CA71xx analyser • a sample pump or sample pressure line • a compressor resp. compressed air supply Optional: nitrate or SAC sensor (CNS70/CSS70) with flow assembly C07-CAT221xx-14-14-00-xx-001.EPS...

  • Page 13: Wiring

    Stamolys CA71CODcr Wiring Wiring WARNING Device is energized Inappropriate connection can cause serious injuries or death ► The electrical connection must only be carried out by a certified electrician. ► Technical personnel must have read and understood the instructions in this manual and must adhere to them.
  • Page 14 Wiring Stamolys CA71CODcr 4.1.2 Terminal assignment CAUTION Shown diagram (→ å 14) is an example The terminal assignment and cable colors can deviate from the actual assignment and colors! ► Only use the terminal assignment of the sticker in the device (→ å 15) to connect your...

  • Page 15: Signal Connection

    Stamolys CA71CODcr Wiring Function Designation Terminal one channel Mains Alarm value 1, channel 1 Alarm value 2, channel 1 Fault Reserve (unassigned terminals) Analog output 1 – 0/4 ... 20 mA Screen Input Sample conditioning remote control NOTICE Terms for special terminals ►...

  • Page 16: Switching Contacts

    Wiring Stamolys CA71CODcr a0001746 Fig. 16: Interference protection of the signal cable Cable screen (to PE ) Signal cable Interference suppressor Cable cores of the signal cable 4.2.2 One-channel version Connection Designation Function Leak Liquid has collected in the drip pan...

  • Page 17: Serial Interface

    Stamolys CA71CODcr Wiring Serial interface RS 232 of CA71 COM 1/2 at PC SUB-D, nine-pin Function Function SUB-D, nine-pin Software protocol: 9600 baud, 8 data bits, 1 stop bit, no parity (9600, N, 8, 1) Output format: ASCII The results (measured value+unit of measure+CR) are output in the "Data memory Measured values"...
  • Page 18 Wiring Stamolys CA71CODcr Current output simulation: Hold both arrow keys down (see "Display and operating elements" chapter) and connect the analyser to the mains or switch the mains switch on (if available). Wait until the display "0 mA" appears. Check on your PLC, PCS or you data logger whether the current value is the same.

  • Page 19: Operation

    Stamolys CA71CODcr Operation Operation Display and operating elements M CE RS 232 a0012457 Fig. 17: Display and operating elements LED (measured value) LC display (status) Serial interface RS 232 Operating keys and control LEDs Display of the heating element Local operation...
  • Page 20 Operation Stamolys CA71CODcr 5.2.1 Main menu Access the main menu by holding down the key until “AUTO MEASURING” is displayed. For the main menu options and information about them, please see the following table. Selection Display Info AUTO MEASURING Calibration, measurement time-controlled actions...
  • Page 21 Stamolys CA71CODcr Operation 5.2.3 CONFIGURATION NOTICE Some settings that can be made in this menu affect the defaults in the PARAMETER ENTRY menu. ► Complete the CONFIGURATION menu first during initial start-up. Menu item Range of adjustment Display Info (factory settings in bold) Input 03.
  • Page 22 Operation Stamolys CA71CODcr Menu item Range of adjustment Display Info (factory settings in bold) Digestion time 10 to 180 min You can shorten the digestion time for samples that are 120 min easily digested. In such situations, check whether the measurement results are correct by using comparison measurements based on the standard method.
  • Page 23 Stamolys CA71CODcr Operation 5.2.4 PARAMETER ENTRY Menu item Range of adjustment Display Info (factory settings in bold) Measuring range COD-A: 0 to 200 mg/l / 0 mg/l The specified concentration is allocated a value of 0 or 4 Range start 0.00 mg/l...
  • Page 24 Operation Stamolys CA71CODcr 5.2.5 LANGUAGE The following languages are available: • Deutsch • English 5.2.6 ERROR DISPLAY • This menu is a "read-only menu". • You can find the individual error messages, their meaning and solutions to problems in chapter "Trouble-shooting instructions".
  • Page 25 Stamolys CA71CODcr Operation Option Display Info "Virtual switching board" Various valve and pump combinations can be selected. The setting options are: – Valve 1 and Valve 5: P (sample/rinse water outlet) or S (standard/chromate waste outlet) – Valve 2: S (standard) or 0 (standard 0 mg/l O –...

  • Page 26: Calibration

    Operation Stamolys CA71CODcr Calibration Complete calibration, consisting of two offset measurements and one standard measurement, is triggered via the automatic calibration mode. In addition, you can start offset and standard calibration manually via the CONFIGURATION menu and view the current calibration data.

  • Page 27: Commissioning

    Stamolys CA71CODcr Commissioning Commissioning Function check CAUTION Avoid damage due to incorrect power supply and inaccurate or insecure hose connections ► Check that all connections are secure. In particular, ensure that all hose connections are secure, so that no leaks occur.
  • Page 28 Commissioning Stamolys CA71CODcr f. Then switch the P1 sample pump "on" (select P1 with and set to "g" with ). Leave the pump running until you can tell that there is standard at the reactor. Switch P1 off again (set to "s" with g.

  • Page 29: Maintenance

    Stamolys CA71CODcr Maintenance Maintenance CAUTION You must not carry out any procedures not listed in the following chapters, yourself. ► Not listed works must only be carried out by the service. ► Wear your personal protective clothing when carrying out any maintenance work.

  • Page 30: Replacing Pump Hoses

    Maintenance Stamolys CA71CODcr • The reagents are too old • The reagents have been spoilt by incorrect storage conditions or environmental influences. 7.2.1 Checking reagents Visual inspection: reagent R2 with an orange hue is OK. Reagent R2 with a green hue must be replaced.
  • Page 31 Stamolys CA71CODcr Maintenance – Remove the old hose from the box any dispose of it. – Clean the hose box and the roller head (item 1) with water. Roller head Upper retainer of hose box Lower retainer of hose box...

  • Page 32: Replacing Valve Hoses

    Maintenance Stamolys CA71CODcr Replacing valve hoses To replace the hoses, proceed as follows: Rinse the old hoses first with water and then with air to empty them (see SERVICE). Remove the hoses from the valves: a. You can disconnect the front hoses directly because the valves are open when de- energised.

  • Page 33: Placing Out Of Service

    Stamolys CA71CODcr Maintenance Placing out of service You must place the analyzer out of service before shipping or before longer operation breaks (more than 2 days). CAUTION Residues of chemicals can cause injuries ► Thoroughly rinse all of the lines of the measuring system with clean water.

  • Page 34: Accessories

    Accessories Stamolys CA71CODcr Accessories In the following sections, you find the accessories available at the time of issue of this documentation. For information on accessories that are not listed here, please contact your local service or sales representation. Collecting vessel –...

  • Page 35: Trouble-Shooting

    Stamolys CA71CODcr Trouble-shooting Trouble-shooting Trouble-shooting instructions Although the analyser is not very prone to faults due to its simple assembly, problems can, of course, not be completely ruled out. Possible errors, their causes and their possible remedies are listed below.

  • Page 36: Process Errors Without Messages

    Trouble-shooting Stamolys CA71CODcr Process errors without messages Error Possible cause Tests and / or corrective measures Reagents contaminated The dichromate solution R2 must be orange to brown in color. It should not have a green hue. or aged The sulfuric acid R1 must be clear and colorless.

  • Page 37: Spare Parts

    Stamolys CA71CODcr Trouble-shooting Error Possible cause Tests and / or corrective measures Device or discharge Remove blockage. Leak at photometer blocked Service Water hardness Lime deposits can be removed by flushing with 5% hydrochloric acid. Blockage, deposits in Not enough sample Shorten the cleaning intervals of sample conditioning.

  • Page 38: Software History

    Trouble-shooting Stamolys CA71CODcr Item Spare part Order number Hose box for pump 51512086 Collecting vessel with level monitoring 51512089 Collecting vessel without level monitoring 51512088 Leak sensor for collecting tank 51515581 230 - 264 Kit CA71COD wear parts 71102950 • 1 set of Tygon pump hoses, yellow/blue (item 241) •...

  • Page 39: Technical Data

    Stamolys CA71CODcr Technical data Technical data 10.1 Input Measured variable COD [mg/l O Measuring range CA71COD-A 0 to 200 mg/l O CA71COD-B 50 to 5000 mg/l O Wavelength CA71COD-A 465 nm CA71COD-B 589 nm 10.2 Output Output signal 0/4 to 20 mA...

  • Page 40: Performance Characteristics

    Technical data Stamolys CA71CODcr 10.4 Performance characteristics Time between two = sample dosage + reagent dosage + chloride stripping + reagent dosage + digestion + measured measurements value calculation + sample discarding + measuring break + rinse time Maximum measured error...

  • Page 41: Mechanical Construction

    Stamolys CA71CODcr Technical data 10.7 Mechanical construction Design, dimensions see chapter "Installation" Weight approx. 32 kg (71 lbs) Material Housing: Glass-fibre reinforced carbon(GFR) Front windows: Polycarbonate ® ® Endless hose: C-Flex , Norprene , PTFE, PFA ® Pump hose: Tygon...

  • Page 42: Appendix

    Appendix Stamolys CA71CODcr Appendix 11.1 Operating matrix a0012416-en Endress+Hauser...
  • Page 43 Stamolys CA71CODcr Appendix a0012417-en Endress+Hauser...

  • Page 44: Maintenance Schedule

    Appendix Stamolys CA71CODcr 11.2 Maintenance schedule a0001911-en Endress+Hauser...

  • Page 45: Index

    Stamolys CA71CODcr Index Examples ........11 Interference suppressor .
  • Page 46 Stamolys CA71CODcr Return........4, 38 Safety icons .
  • Page 47 Declaration of Hazardous Material and De-Contamination Erklärung zur Kontamination und Reinigung Please reference the Return Authorization Number (RA#), obtained from Endress+Hauser, on all paperwork and mark the RA# RA No. clearly on the outside of the box. If this procedure is not followed, it may result in the refusal of the package at our facility.
  • Page 48 www.endress.com/worldwide BA458C/07/EN/06.10 71115573...

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