Hach-lange 1720E Low Range Turbidimeter User Manual

DOC023.52.03221.May071720E Low Range TurbidimeterUSER MANUALMay 2007, Edition 7

6General Information2.1.3 General Product Information The 1720E Turbidimeter is a continuous-reading nephelometric turbidimeter designed for low-range

7General Information2.2 Theory of OperationThe 1720E Turbidimeter measures turbidity by directing a strong beam of collimated light from the sensor he

8General Information

9Section 3 InstallationDANGEROnly qualified personnel should conduct the tasks described in this section of the manual. The 1720E/sc100 product config

10Installation3.1.2 Hard-wiring a sc Sensor to the sc100 Controller1. Disconnect power to the controller if powered. 2. Open the controller cover. 3.

11InstallationFigure 3 Hard-wiring the Sensor3.2 Connecting the Sensor to the sc1000 Controller3.2.1 Connecting the Sensor using the Quick-connect Fit

12InstallationFigure 4 1720E Dimensions

13Installation3.3.1 Mounting the Turbidimeter BodyLocate the turbidimeter as close to the sampling point as possible. A shorter distance for the sampl

14InstallationFigure 5 Sampling Techniques3.5 Sample ConnectionsSample inlet and drain connections are made on the turbidimeter body. The sample inlet

15Section 4 System Startup4.1 General OperationPlug the sensor into the unpowered controller by aligning the orientation tab on the cable connector wi

© HACH LANGE GmbH, 2007. All rights reserved. Printed in Germany.

16System Startup

17Section 5 Operation5.1 Sensor SetupWhen a sensor is initially installed, the serial number of the sensor will be displayed as the sensor name. To ch

18Operation5.5 Sensor Calibration and VerificationThe manufacturer offers two EPA-approved calibration methods one using user-prepared formazin and th

19Operation• Stop sample flow, drain, and clean the turbidimeter body before beginning the calibration procedure.• Always clean the photocell window p

20Operation9. Stop the sample flow. Drain and clean the body and bubble trap. Fill the cylinder with 1 L deionized water. Replace the head and confirm

21Operationserial number). As long as the verification exists within the verification history, the expected value will be retained. Otherwise, the exp

22Operation4. Select PERFORM TEST and confirm. Select the available Output Mode (Active, Hold, or Transfer) from the list box and confirm. 5. Select W

23Operation5.7.1 Setting the OffsetFollow the steps below to enter an offset:Note: The data log for this channel will be erased if the offset is chang

24Operation

25Section 6 Maintenance DANGEROnly qualified personnel should conduct the tasks described in this section of the manual. 6.1 Maintenance ScheduleSched

DOC023.52.03221.May071720E Low Range TurbidimeterUSER MANUALMay 2007, Edition 7© HACH LANGE GmbH, 2007. All rights reserved. Printed in Germany.

26Maintenance6.4 Cleaning6.4.1 Cleaning the Photocell WindowOccasional cleaning of the photocell window is required. The frequency will depend on the

27Maintenance4. Replace the bubble trap cover and head assembly on the top of the body.5. Restore sample flow to the instrument.6. Calibrate the instr

28Maintenance3. After the bulb has cooled, remove as follows:a. Wear cotton gloves to protect your hands and to avoid fingerprints on the bulb.b. Gras

29Section 7 Troubleshooting7.1 Error CodesWhen a sensor is experiencing an error condition, the sensor reading on the measurement screen will flash an

30TroubleshootingTable 5 presents sensor warnings displayed in the Event Log, possible causes, and corrective actions.Table 6 presents additional malf

31Troubleshooting7.3 Event CodesEvent codes are not displayed on controller and must be downloaded from the event log to be viewed. Troubleshooting ac

32Troubleshooting

33Section 8 Replacement Parts and Accessories8.1 Replacement ItemsDescription QTY Catalog NumberLamp Assembly each 18950-00Instruction Manual, 1720E T

34Replacement Parts and Accessories8.3 Calibration and Verification Standards and AccessoriesDescription QTY Catalog NumberCalibration Cylinder each 4

35Section 9 ContactHACH LANGE GMBHWillstätterstraße 11D-40549 DüsseldorfTel. +49 (0)2 11 52 88-0Fax +49 (0)2 11 52 [email protected]

36ContactHACH LANGE8, Kr. Sarafov str.BG-1164 SofiaTel. +359 (0)2 963 44 54Fax +359 (0)2 866 04 [email protected] LANGE SUANAL

37Section 10 Warranty and liabilityThe manufacturer warrants that the product supplied is free of material and manufacturing defects and undertakes th

38Warranty and liability

39Section 11 Compliance InformationHach Co. certifies this instrument was tested thoroughly, inspected and found to meet its published specifications

40Compliance InformationCanadian Interference-causing Equipment Regulation, IECS-003, Class ASupporting test records by Hewlett Packard, Fort Collins,

41Appendix A Modbus Register InformationTable 8 Sensor Modbus RegistersGroup Name Tag NameRegister #Data TypeLength R/W Units (U) RangeMeasurements Ca

42Modbus Register Information

43IndexNumerics90 Degree Detector ... 7AAccuracy ...

44Index

1Table of ContentsSection 1 Specifications...

2Table of ContentsSection 8 Replacement Parts and Accessories...

3Section 1 SpecificationsSpecifications are subject to change without notice.Table 1 1720E Low Range SpecificationsRange 0–100 nephelometric turbidity

4SpecificationsVerification (Wet) Method1. StablCal® (stabilized formazin) – recommended for verification in the appropriate application range of meas

5Section 2 General Information2.1 Safety InformationPlease read this entire manual before unpacking, setting up, or operating this equipment. Pay atte