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Troubleshooting

6.3.2 Troubleshooting during calibration

Symptom

Possible cause

Corrective actions

SENSOR CODE

Sensor code entered incorrectly

Using the certificate, check whether the
sensor code was entered correctly. If not
having the certificate, carry out "Factory
Calibration" (Factory cal).

NITRATE

OFFSET

Error in the last nitrate calibration, sensor
cartridge too old, contaminated, faulty

Repeat the calibration.
Use the previous calibration.
Clean or replace the sensor cartridge.

SLOPE

Error in the last nitrate calibration, sensor
cartridge too old, contaminated, faulty

Repeat the calibration.
Use the previous calibration.
Clean or replace the sensor cartridge.

CHLORIDE

OFFSET

Error in the last chloride calibration, sensor
cartridge too old, contaminated, faulty

Repeat the calibration.
Use the previous calibration.
Clean or replace the sensor cartridge.

SLOPE

Error in the last chloride calibration, sensor
cartridge too old, contaminated, faulty

Repeat the calibration.
Use the previous calibration.
Clean or replace the sensor cartridge.

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Содержание NO3D sc

Страница 1: ...DOC023 53 90140 NO3D sc Nitrate Sensor USER MANUAL 12 2008 Edition 1A HACH Company 2008 All rights reserved Printed in Germany...

Страница 2: ...2...

Страница 3: ...tup menu 20 4 6 Calibration 22 4 6 1 Sensor code calibration 22 4 6 2 Matrix correction overview 23 4 6 3 Matrix correction 24 4 6 3 1 MATX1 correction one point matrix correction 24 4 6 3 2 MATX1 CL...

Страница 4: ...4 Table of Contents Section 10 Certification 43 Appendix A Modbus Register 45 Index 47...

Страница 5: ...temperature Sensor 20 to 60 C 4 to 140 F Sensor cartridge 5 to 40 C 41 to 104 F Operating temperature Air 20 to 45 C 4 to 113 F Sample temperature 2 to 40 C 35 to 104 F Max flow velocity 4 m s Max sen...

Страница 6: ...6 Specifications 1 1 Dimensions Figure 1 Stainless steel sensor dimensions...

Страница 7: ...supplements points in the main text 2 1 2 Precautionary labels Read all labels and tags attached to the instrument Personal injury or damage to the instrument could occur if not observed A symbol if n...

Страница 8: ...ncludes the ion selective electrodes for nitrate and chloride compensation electrode a pHD electrode used as a reference system and a temperature sensor for temperature compensation An optional cleani...

Страница 9: ...ve direct contact with the process and therefore it is particularly stable against drift Ion selective electrodes have a special membrane to which only a specific type of ion can adhere As a result an...

Страница 10: ...10 General Information...

Страница 11: ...e cartridge into operation for maximum life of the sensor cartridge 2 Remove the cap of the storage container see Figure 6 on page 13 3 Take the sensor cartridge out of the storage container and remov...

Страница 12: ...The sensor cartridge only fits correctly in the sensor adapter in one position Pay attention to the markings on the sensor cartridge and on the sensor adapter see Figure 8 on page 14 Figure 5 Storage...

Страница 13: ...Note Without the opaque gasket damage of the sensor will occur 3 Align the markings on the sensor cartridge with the sensor adapter see Figure 8 on page 14 and connect the sensor cartridge into the s...

Страница 14: ...or cartridge 1 Make sure that this end remains wet 2 Make sure that the contacts on this end stay dry Figure 8 Sensor assembly 1 Locking ring 4 Sensor adapter 2 Sensor cartridge 5 Sensor housing 3 Ali...

Страница 15: ...lation Install the sensor where the sample that comes into contact with the sensor is representative of the entire process Position the sensor at least 200 mm 7 87 in from the tank wall When using a c...

Страница 16: ...16 Installation Figure 10 Example of sensor installation with Rail Mount Kit...

Страница 17: ...the connector opening in case the sensor must be removed Optional extension cables may be purchased to extend the sensor cable length 1 Unscrew the protective cap from the socket on the controller 2 I...

Страница 18: ...18 Installation...

Страница 19: ...confirm 4 Select CONFIGURE and confirm 5 Select EDIT NAME and edit the name Confirm or cancel to return to the Sensor Setup menu 4 3 Sensor data logging The sc controller provides a data log and an e...

Страница 20: ...T NO3 N CONC Entry and display of the NO3 N reference value lab value or CAL CONFIG MATX2 2 point matrix correction see section 4 6 3 3 on page 25 CONC MEAS 1 Saving the currently measured measurement...

Страница 21: ...IOUS CAL Selection of one of the last four matrix and value corrections performed or CAL CONFIG FACTORY CAL Selection of the preset sensor code DATE Date of last calibration SENSOR CODE Enter the sens...

Страница 22: ...t to the process 4 6 1 Sensor code calibration When activating a new sensor cartridge or during initial calibration the sensor code must be entered The default sensor code is IIIIIIIIIIIIIIII all 16 I...

Страница 23: ...c sensor Correction Option Application MATX1 The most commonly used Matrix correction It performs a 1 point matrix correction offset adjustment for nitrate 4 6 3 1 on page 24 MATX1 CL With the MATX1 C...

Страница 24: ...the measured value is stable 4 Wait until the measured value is stable and confirm by pressing ENTER Drift should be 0 03 mg L The values for nitrate and chloride are saved 5 Immediately after saving...

Страница 25: ...aboratory reference value for chloride and press ENTER to confirm Confirmation of the entered laboratory value activates the matrix correction 4 6 3 3 MATX2 correction 2nd point matrix correction Proc...

Страница 26: ...EAS 1 and wait until the NO3 N and Cl values are stable drift should be 0 03 mg L 4 Press ENTER to confirm The value for nitrate and chloride are saved 5 Immediately after measuring take a water sampl...

Страница 27: ...trations as far apart as possible 4 Select CAL CONFIG CALIBRATE VALUE CORR from the menu and press ENTER to confirm Enter the 3 noted values 5 1 NO3 N NO3D sc Enter the displayed NO3 N value for the 1...

Страница 28: ...28 Operation...

Страница 29: ...r and then carefully and evenly polish the coating away Important Note Only the LZY671 polishing paper supplied may be used 5 1 Maintenance schedule Maintenance task 30 days1 6 months Clean sensor2 x...

Страница 30: ...of the old sensor cartridge and opaque gasket per applicable regulations 4 Ensure that the new opaque gasket is installed during every sensor cartridge replacement 5 Insert the new sensor cartridge i...

Страница 31: ...31 Maintenance Figure 13 Replace the sensor cartridge 1 Locking ring 4 Sensor adapter 2 Sensor cartridge 5 Sensor housing 3 Markings 6 Opaque gasket...

Страница 32: ...ill the container with drinking water or use the shipping boot solution NO DISTILLED WATER and ensure that the sensor cartridge remains wet Check the membranes and ensure they are still moist every 2...

Страница 33: ...de mV value is out of measuring range pHD RANGE pHD reference value out of measuring range TEMP RANGE Temperature value out of measuring range NO CARTRIDGE No sensor cartridge connected Connect sensor...

Страница 34: ...cleaning interval Sensor membrane damaged Check sensor installation replace sensor cartridge Reference element damaged Check sensor installation replace sensor cartridge NO3 mV RANGE Nitrate mV value...

Страница 35: ...OK ENTER If the test cartridge data are not within this range or if the test cartridge check is not successful contact our service or technical support department Unstable measurement values Air bubb...

Страница 36: ...se the previous calibration Clean or replace the sensor cartridge SLOPE Error in the last nitrate calibration sensor cartridge too old contaminated faulty Repeat the calibration Use the previous calib...

Страница 37: ...it LZX914 99 12400 Stainless Steel Basin Edge Mounting LZX414 00 80000 High Output Air Blast compressor 115 V 50 Hz 6860003 High Output Air Blast compressor 230 V 50 Hz 6860103 Test cartridge 6188300...

Страница 38: ...38 Spare Parts and Accessories...

Страница 39: ...DK 2700 Br nsh j Tel 45 36 77 29 11 Fax 45 36 77 49 11 info hach lange dk www hach lange dk HACH LANGE AB Vinthundsv gen 159A SE 128 62 Sk ndal Tel 46 0 8 7 98 05 00 Fax 46 0 8 7 98 05 30 info hach l...

Страница 40: ...tact information HACH LANGE MAROC SARLAU Villa 14 Rue 2 Casa Plaisance Quartier Racine Extension MA Casablanca 20000 T l 212 0 522 97 95 75 Fax 212 0 522 36 89 34 info maroc hach lange com www hach la...

Страница 41: ...ural disaster labor unrest acts of war declared or undeclared terrorism civil strife or acts of any governmental jurisdiction Damage caused by misuse neglect accident or improper application or instal...

Страница 42: ...s of repair replacement or refund of purchase price as stated above are the exclusive remedies for the breach of this warranty On the basis of strict liability or under any other legal theory in no ev...

Страница 43: ...andard criterion B IEC 1000 4 5 EN 61000 4 5 Electromagnetic compatibility EMC Testing and measurement techniques Surge immunity test criterion B IEC 1000 4 6 EN 61000 4 6 Electromagnetic compatibilit...

Страница 44: ...44 Certification...

Страница 45: ...W P19 42 UNIT SELECT 40018 Unsigned Integer 1 R W U0 2 TEMP OFFSET C 40019 Float 2 R W 1 5 1 5 TEMP OFFSET F 40021 Float 2 R W 2 7 2 7 SENSOR NAME 40024 String 8 R W CAL CONFIG 40032 Unsigned Integer...

Страница 46: ...t 2 R 500 500 TEMP CONC 2 40109 Float 2 R 0 45 OFFSET BY NITRATE 40111 Float 2 R 70 50 SLOPE NITRATE 40113 Float 2 R 20 150 OFFSET BY CHLORIDE 40115 Float 2 R 150 50 SLOPE CHLORIDE 40117 Float 2 R 20...

Страница 47: ...22 Modbus 45 P Power supply 5 R Replacement of the sensor cartridge 29 Replacement parts 37 S Sensor Cleaning 29 Diagnostics menu 19 Installation 15 Settings menu 20 Setup 19 Unpacking 11 Sensor cart...

Страница 48: ...48...

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