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Hach LDO User Manual

Manual is about: Dissolved Oxygen Sensor

Summary of LDO

  • Page 1

    Catalog number 5790018 ldo ™ dissolved oxygen sensor user manual december 2006, edition 6 © hach company, 2003–2006. All rights reserved. Printed in the u.S.A. Eac/te/dp.

  • Page 2

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  • Page 3: Table of Contents

    3 table of contents section 1 specifications......................................................................................................................................... 5 section 2 general information .........................................................................................

  • Page 4

    4 table of contents section 8 replacement parts and accessories.................................................................................................. 31 section 9 how to order ...................................................................................................................

  • Page 5: Section 1

    5 section 1 specifications specifications are subject to change without notice. Table 1 ldo probe specifications components corrosion-resistant materials, fully-immersible sensor with 10 m (30 foot) cable measuring range (dissolved oxygen) 0 to 20.00 ppm (0 to 20.00 mg/l) or 0 to 200% saturation mea...

  • Page 6

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  • Page 7: Section 2

    7 section 2 general information 2.1 safety information please read this entire manual before unpacking, setting up, or operating this equipment. Pay attention to all danger and caution statements. Failure to do so could result in serious injury to the operator or damage to the equipment. To ensure t...

  • Page 8

    8 general information 2.2 general sensor information the luminescent dissolved oxygen (ldo) sensor ( figure 1 ) allows aqueous samples to be easily and accurately analyzed for dissolved oxygen concentration. Specially designed for municipal and industrial wastewater applications, the system consists...

  • Page 9: Section 3

    9 section 3 installation danger only qualified personnel should conduct the tasks described in this section of the manual. Danger seul un technicien qualifié peut effectuer les tâches d'installation décrites dans cette section du manuel. The ldo system can be used with either an sc100 or sc1000 cont...

  • Page 10

    10 installation figure 2 attaching the sensor using the quick-connect fitting 3.1.1.2 hard-wiring a sc sensor to the controller important note: hard-wiring the sensor to the sc100 is not an approved method for class i, division 2 hazardous locations. 1. Disconnect power to the controller if powered....

  • Page 11

    11 installation figure 3 hard-wiring the sensor table 2 wiring the sensor at terminal block j5 terminal number terminal designation wire color 1 data (+) blue 2 data (–) white 3 service request no connection 4 +12 vdc brown 5 circuit common black 6 shield shield (grey wire in existing quick-disconne...

  • Page 12

    12 installation 3.1.2 connecting the sc sensor to a controller in a hazardous location danger the sc100 and certain versions of the sensor are suitable for use in class 1, division 2, groups a, b, c, d hazardous locations . See control drawing 5860078 in the sc100 controller manual, cat. No. 5860018...

  • Page 13

    13 installation 3.2 connecting the sensor to the sc1000 3.2.1 connecting the sensor using the quick-connect fittings 1. Unscrew the connector cap from the controller. Retain the connector cap to seal the connector opening in case the sensor must be removed. 2. Push the connector into the socket. 3. ...

  • Page 14

    14 installation figure 5 optional pole mount (cat. No. 5794400) and ball float mount (5794300) installation 1. Pipe locking knob 4. Position pin removed for float assembly 2. Pipe locking knob 5. Adjustable angle (using position pin) 3. Position pin aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa...

  • Page 15: Section 4

    15 section 4 user interface and navigation 4.1 using the sc100 controller the front of the controller is shown in figure 6 . The keypad consists of the eight keys described in table 3 . Figure 6 front of the controller 1. Instrument display 5. Irda window 2. Back key 6. Home key 3. Menu key 7. Enter...

  • Page 16: 7.00

    16 user interface and navigation 4.1.1 controller display features when a sensor is connected and the controller is in measurement mode, the controller automatically identifies the connected sensors and displays associated measurements. The display will flash on startup, when a sensor error has occu...

  • Page 17

    17 user interface and navigation 4.2 using the sc1000 controller the sc1000 is a touch screen application. Use your finger to touch keys and menu commands. In normal operation the touch screen displays the measured values for the sensors selected. 4.2.1 display features 4.2.1.1 using the pop-up tool...

  • Page 18

    18 user interface and navigation figure 9 main menu 4.2.1.3 navigating the menu windows to view a menu item, touch the menu item or use the up and down keys to highlight the item. The menu item remains highlighted for approximately 4 seconds after it is selected. To view the highlighted command, sel...

  • Page 19

    19 user interface and navigation figure 10 changing a menu item figure 11 keypad 1. Display area 5. Home –changes to the display of measured values. 2. Back 6. Up –scrolls up 3. Forward 7. Down –scrolls down 4. Enter –confirms the entry or selection. 1. Enters numbers or the character as shown on th...

  • Page 20

    20 user interface and navigation figure 12 list box figure 13 message window 1. Scrolls up or down 2. Cancel –cancels and entry. 3. Enter –confirms a selection. 1. Scrolls up or down. 2. Displays the messages or warnings. 3. Displays details on the selected entry. 4. This button changes back to the ...

  • Page 21: Section 5

    21 section 5 operation 5.1 sensor setup when a sensor is initially installed, the serial number of the digital gateway will be displayed as the sensor name. To change the sensor name refer to the following instructions: 1. Select main menu. 2. From the main menu, select sensor setup and confirm. 3. ...

  • Page 22

    22 operation 5.4 sensor setup menu select sensor (if more than one sensor is attached) calibrate air cal perform an air calibration of the sensor (slope calibration). See section 5.6.1 on page 24 . Sample cal enter a value for the do concentration as determined by another sensor or independent metho...

  • Page 23

    23 operation 5.5 pressure and elevation note: if the barometric pressure from table 4 is entered in the meter, the altitude entered in combination with this value must be 0 feet. Table 4 can be used to estimate the true barometric pressure at certain elevations. The correspondence is based on the as...

  • Page 24

    24 operation 5.6 calibration the dissolved oxygen sensor has been calibrated at the factory to the specifications listed on specifications on page 5 . Due to the inherent accuracy and stability of the luminescent dissolved oxygen technology, sensor calibration is seldom or never necessary. The calib...

  • Page 25

    25 operation three minutes for the reading to stabilize is typical, however, if it has not stabilized after 45 minutes, the display will ready “unable to calibrate”. After calibration, one of the responses in table 5 on page 26 will be displayed. 11. Follow the prompts to return the sensor to the pr...

  • Page 26

    26 operation 5. Select calibrate and confirm. 6. Select sample cal. Select the available output mode (active, hold, or transfer) from the list box and confirm. 7. The display will show “press enter when stabilized” and the current do and temperature readings. When the reading has been confirmed or w...

  • Page 27: Section 6

    27 section 6 maintenance danger only qualified personnel should conduct the tasks described in this section of the manual. Danger seul un technicien qualifié peut effectuer les tâches d'installation décrites dans cette section du manuel. Danger explosion hazard. Do not connect or disconnect equipmen...

  • Page 28

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  • Page 29: Section 7

    29 section 7 troubleshooting 7.1 error codes when a sensor is experiencing an error condition, the sensor reading on the measurement screen will flash and all relays and analog outputs associated with this sensor will be held. The following conditions will cause the sensor reading to flash: sensor c...

  • Page 30

    30 troubleshooting table 7 warning codes displayed warning definition resolution ee setup err the eeprom was corrupted. Values have been set to factory defaults. Contact the service department. Ee rsrvd err the eeprom was corrupted. Values have been set to factory defaults. Contact the service depar...

  • Page 31: Section 8

    31 section 8 replacement parts and accessories replacement items description qty cat. No. Instruction manual, ldo system, english each 5790018 ldo probe with one sensor cap and 5 calibration bags each 5790000 ldo probe with one sensor cap and 5 calibration bags, hazardous locations each 5790001 sens...

  • Page 32

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  • Page 33: Section 9

    33 section 9 how to order u.S.A. Customers by telephone: 6:30 a.M. To 5:00 p.M. Mst monday through friday (800) 227-hach (800-227-4224) by fax: (970) 669-2932 by mail: hach company p.O. Box 389 loveland, colorado 80539-0389 u.S.A. Ordering information by e-mail: orders@hach.Com information required ...

  • Page 34: Section 10

    34 section 10 repair service authorization must be obtained from hach company before sending any items for repair. Please contact the hach service center serving your location. In the united states: hach company ames service 100 dayton avenue ames, iowa 50010 (800) 227-4224 (u.S.A. Only) fax: (515) ...

  • Page 35: Section 11

    35 section 11 limited warranty hach company warrants its products to the original purchaser against any defects that are due to faulty material or workmanship for a period of one year from date of shipment unless otherwise noted in the product manual. In the event that a defect is discovered during ...

  • Page 36

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  • Page 37: Section 10

    Compliance information page 37 section 10 compliance information hach co. Certifies this instrument was tested thoroughly, inspected and found to meet its published specifications when it was shipped from the factory. The model sc100 controller/sc1000 controller with the ldo probe has been tested an...

  • Page 38

    Compliance information page 38 compliance information canadian interference-causing equipment regulation, iecs-003, class a supporting test records by hewlett packard, fort collins, colorado hardware test center (a2la # 0905-01) and certified compliance by hach company. This class a digital apparatu...

  • Page 39

    39 appendix a modbus register information table 8 sensor modbus registers group name tag name register # data type length r/w units (u) range measurements oxygen concentration 40001 float 2 r ppm 0..20 measurements percent saturation 40003 float 2 r percent 0..300 measurements temperature 40005 floa...

  • Page 40

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  • Page 41: Index

    41 index a applications ................................................................ 8 b buttons list box .............................................................. 19 toolbar .............................................................. 17 c calibration .......................................

  • Page 42

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