Hach-Lange UVAS sc User Manual

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DOC023.52.03230

UVAS sc

USER MANUAL

08/2012, Edition 3A

Section 1 Specifications ............................................................................................................................................... 5

Section 2 General information ..................................................................................................................................... 7

2.1 Safety information...................................................................................................................................................... 7

2.1.1 Hazard information in this manual ................................................................................................................... 7

2.1.2 Warning labels ................................................................................................................................................. 7

2.2 Applications ............................................................................................................................................................... 8

2.3 Measuring principle ................................................................................................................................................... 8

Section 3 Installation....................................................................................................................................................11

3.1 Installation overview ................................................................................................................................................ 11

3.2 Sensor ..................................................................................................................................................................... 12

3.3 Attaching the Sensorcable....................................................................................................................................... 15

3.4 Wiring safety information......................................................................................................................................... 15

3.4.1 Sensor connection and wiring........................................................................................................................ 16

Section 4 Operation..................................................................................................................................................... 17

4.1 sc controller operation ............................................................................................................................................. 17

4.2 Sensor setup ........................................................................................................................................................... 17

4.3 Sensor data logger .................................................................................................................................................. 17

4.4 Menu structure......................................................................................................................................................... 18

4.4.1 SENSOR STATUS......................................................................................................................................... 18

4.4.2 SENSOR setup .............................................................................................................................................. 18

4.5 Calibration ............................................................................................................................................................... 22

4.5.1 Verifying ......................................................................................................................................................... 22

4.5.2 Zero point calibration ..................................................................................................................................... 23

4.5.3 1 point calibration........................................................................................................................................... 23

4.6 Adjusting measured values ..................................................................................................................................... 24

4.6.1 Zero point adjustment .................................................................................................................................... 24

4.6.2 Setting factor.................................................................................................................................................. 24

4.7 Conversion into other total parameters ................................................................................................................... 25

Section 5 Maintenance ................................................................................................................................................ 27

5.1 Maintenance schedule............................................................................................................................................. 27

5.2 Cleaning measuring path......................................................................................................................................... 28

5.3 Changing wiper profile............................................................................................................................................. 29

5.4 Seal change (bypass version) ................................................................................................................................. 30

5.4.1 UVAS plus sc ................................................................................................................................................ 30

Section 6 Troubleshooting ......................................................................................................................................... 31

6.1 Error messages ....................................................................................................................................................... 31

6.2 Warnings ................................................................................................................................................................. 31

Section 7 Replacement Parts ..................................................................................................................................... 33

Section 8 Warranty and liability ................................................................................................................................. 35

Section 9 Contact ....................................................................................................................................................... 37

Appendix A ModBUS Register Information

.............................................................................................................. 39

Table of Contents

Section 1 Specifications

Specifications are subject to change without notice.

Table 1 UVAS plus sc tank sensors

UVAS plus sc

Measuring technique UV absorption measurement (2-beam technique), reagent-free

Measuring method SAC 254 in accordance with DIN 38404 C3

Measuring path 1, 2, 5 and 50 mm

0.01-60 m

0.1-600 m–1 (5 mm)

Measuring range

Can be calibrated to the total parameter COD depending on the application

Compensation 550 nm

Measuring interval (> min) >1 min

Cable length

Optional extension cables available in 5, 10, 15, 20, 30, 50 m

Total maximum length: 60 m (196 ft)

0-1500 m 2-3000 m–1 (1 mm)

10 m (33 ft) standard

–1

(50 mm)

–1

(2 mm)

Control function PID, time control, 2-point controller (with sc 100)

Probe pressure limit max. 0.5 bar

Ambient temperature +2 °C to +40 °C

Dimensions D × L Approx. 70 mm x 333 mm

Mass approx. 3.6 kg

Inspection interval 6 months

User maintenance 1 h / month, typical

Table 2 UVAS plus sc bypass sensors

UVAS plus sc (in the bypass)

Measuring path 2, 5 and 50 mm

0.01–60 m

Measuring range With NO

Cable length

Sample flow rate At least 0.5 L/h sample

-N standard solutions

Can be calibrated to the total parameter COD depending on the application

Optional extension cables available in 5, 10, 15, 20, 30, 50 m

Total maximum length: 60 m (196 ft)

0.1–600 m 0–1500 m-1 (2 mm)

10 m (33 ft) standard

-1

(50 mm)

-1

(5 mm)

Pressure limit max. 0.5 bar

Sample connection Hose ID 4 mm / OD 6 mm

Sample temperature +2 °C to +40 °C

Dimensions see Figure 4, page 14

Specifications

Component Material

Probe

probehousing wiper axis fitting profile joist 2 mm wiperarm 5 mm / 50 mm

Wiper Profile

measuring window seal for housing seal for fitting probe cable

Leverage

probe adapter leverage

Bypass

measuring cell seals fittings tube

Table 3 UVAS plus sc sensor-material

stainless steel 1.4571 stainless steel 1.4571 stainless steel 1.4305 stainless steel 1.4310 stainless steel 1.4581

silicone

SUPRASIL (silica glass)

silicone

PVDF

SEMOFLEX (PUR)

stainless steel 1.4308 stainless steel 1.4301

PVC

EPDM

PVDF

PVC

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 prevent any impairment of the instrument's safety features, it must not be used or installed in any manner other than that specified in this manual.

DANGER

Do not use the probe in hazardous area.

2.1.1 Hazard information in this manual

DANGER

Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.

2.1.2 Warning labels

This symbol, if noted on the instrument, references the user manual for operation and/or safety information.

WARNING

Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation that may result in minor or moderate injury.

NOTICE

Indicates a situation which, if not avoided, may cause damage to the instrument. Information that requires special emphasis.

Note: Information that supplements points in the main text.

Read all labels and notices attached to the equipment. Personal injury or damage to the equipment could occur if they are not observed. Any symbol on the equipment will appear along with a caution statement in the manual.

This symbol, when noted on a product enclosure or barrier, indicates that a risk of electrical shock and/or electrocution exists.

This symbol may appear on the product and indicates the need for protective eye wear.

General information

35 cm für den Ausbau der Sonde freilassen!

Substance groups measured

1. COD 3. SAC

2. BOD 4. TOC

This symbol may appear on the product and identifies the connection point for the protective ground.

When this symbol appears on the product, it identifies the location of a fuse or a current limiter. Electrical equipment marked with this symbol may not be disposed of in European domestic or public disposal

systems after 12 August 2005. In conformity with European local and national regulations (EU Directive 2002/96/EC), European electrical equipment users must now return old or end-of life equipment to the manufacturer for disposal at no charge to the user.

Note: For return for recycling, please contact the equipment manufacturer or supplier for instructions on how to return end-of-life equipment, manufacturer-supplied electrical accessories, and all auxiliary items for proper disposal.

2.2 Applications

UVAS plus sc:

immersed directly in the medium, without pumping or preparation of a sample, the sensor measures the content of dissolved organic compounds in activated sludge tanks in municipal sewage treatment plants, surface water, untreated water and treated drinking water. The system can also be used for checking the outlet of waste water treatment plants.

2.3 Measuring principle

Bypass accessories for UVAS plus sc:

the through-flow variant of the high-precision UVAS plus sc sensor is used wherever direct measurement in the medium is not possible for constructionrelated reasons or the medium load makes it necessary to measure a filtered sample (very high TS contents, sewage treatment plant inlet, waste dump seepage,...).

NOTICE

Any use other than use in accordance with requirements defined in the user manual leads to the loss of the warranty claims and can lead to personal injury and property damage, for which the manufacturer assumes no liability.

Organic compounds dissolved in water in general absorb UV light, for this reason the measurement of UV absorption represents an independent total parameter for dissolved organic substance water load. In drinking water treatment this method of determination of the quality of water without chemicals using laboratory photometers and filtered samples has a long tradition.

DIN 38402 C2 stipulates for the measurement of the UV absorption, the measuring wavelength of 254 nm and characterises the measured value for a filtered sample as a spectral absorption coefficient at 254 nm (SAC254 for short), which is to be converted to extinctions per metre. In this way straightforward comparability of the measured results from photometers with different cuvette intensities is achieved and the units 1/m or m

–1

are obtained.

The UVAS immersed probe comprises a multiple beam absorption photometer with effective turbidity compensation. The related controller controls the process of the measurement using a flash lamp photometer, the mechanical cleaning of the measuring window by a wiper, and also displays the measured values as SAC254 in 1/m.

For other total parameters such as COD or TOC etc. there is a correlation for the SAC254 of the same quality as, e.g., between COD and TOC. Very high

General information

availability of measured values, minimum investment, minimum effort for installation and maintenance or upkeep are therefore often key reasons for the decision in favour of the UVAS sensor if an online measurement is to be used for a total parameter.

For media containing solids, the SAC measurement with UVAS should always be supplemented with a solids or turbidity measurement (SOLITAX sc, ULTRATURB sc).

The maintenance effort for the user is minimal and is limited to a straightforward inspection that, depending on the medium, is due at the most weekly.

General information

Section 3 Installation

3.1 Installation overview

Installation of this system may only be carried out by qualified experts in accordance with all local safety regulations. See the mounting instruction sheet for more information.

Figure 1 Installation example with optional accessories

CAUTION

Installation

3.2 Sensor

Figure 2 Sensor accessory components

1. UVAS sc sensor 3. Wiper profile (5 mm)

2. Wiper profile (1 and 2 mm) 4. Wiper profile (50 mm)

Figure 3 Sensor bracket components

Installation

1. Mounting pipe 2.0 m 8. Cheese head bolt M8 x 40 (4)

2. 90° adapter 9. Sealing plug

3. Base 10. Plug

4. Clamp half (2) 11. O-ring EPDM

5. Clamp half with thread (2) 12. Flat seal

6. Cheese head bolt M5 x 20 (6) 13. Countersunk head bolt M6 x 8 (2)

7. Fastening lug 14. Cheese head bolt M3 x 10 (3)

Installation

Figure 4 UVAS plus sc bypass accessories

1. Sample waste 2. Sample feed 3. Drain plug

Figure 5 Installation overview, sensor bracket LZX414...

Installation

1. Base 8. Cheese head bolt M8 x 40 (4)

2. Anchors 9. Cheese head bolt with washer M3 x 10 (3)

3. Sealing plug 10. Flat seal

4. Plug 11. Adapter 90°

5. Mounting pipe 2.0 m 12. Countersunk head bolt M6 x 8 (2)

6. Retaining clamp (2) 13. O-ring EPDM

7. Fastening lug

3.3 Attaching the Sensorcable

3.4 Wiring safety information

WARNING

Electrical shock hazard. Always disconnect power to the instrument when making any electrical connections.

Installation

3.4.1 Sensor connection and wiring

CAUTION

Before power is applied, refer to the controller operation instructions.

The sensor cable is supplied with a keyed quick-connect fitting for easy attachment to the controller. Retain the connector cap to seal the connector opening in case the sensor must be removed. Optional extension cables may be purchased to extend the sensor cable length.

Figure 6 Attaching the Sensor using the Quick-connect Fitting

Figure 7 Quick-connect Fitting pin assignment

Number Designation Wire Color

1 +12 VDC Brown 2 Circuit Common Black 3 Data (+) Blue 4 Data (–) White 5 Shield Shield (grey wire in existing quick-disconnect fitting) 6Groove

Section 4 Operation

4.1 sc controller operation

The sensor can be operated with all sc controllers. Become familiar with the functionality of the sc controller before using the sensor. Learn how to navigate the menu and execute the corresponding functions.

4.2 Sensor setup

When the sensor is connected for the first time, the sensor serial number is displayed as the sensor name. The sensor name can be changed as follows.

1. Open the MAIN MENU.

2. Press SENSOR SETUP and confirm.

3. Select the corresponding sensor and confirm.

4. Select CONFIGURE and confirm.

5. Press EDITED NAME and confirm.

6. Edit the names and confirm to return to the CONFIGURE menu.

Complete the system configuration in the same way by defining settings for the following menu items:

• SET PARAMETER

• MEAS UNIT

• MEAS INTERVAL

• CORRELATION

• REFERENCE

• MEAS INTERVAL

• RESPONSE TIME

• CLEANING

• WIPER MODE

• BYPASS

• SET DEFAULTS

4.3 Sensor data logger

A data storage unit and an event memory unit are provided for each sensor. The data storage unit stores measurement data at predefined time intervals, while the event memory unit stores events such as configuration changes, alarms and warning conditions. Both storage units can be output in CSV format (refer to sc controller manual).

Operation

4.4 Menu structure

4.4.1 SENSOR STATUS

SELECT SENSOR (if there is more than one sensor)

ERRORS

Possible error messages: MOIST, R < M, DEXT < 0.0, W. POS. UNKNOWN., W. BLOCKED, FLASH FAILURE, R TOO HIGH

WARNIN GS

Possible warnings: EM TOO HIGH, CONC. TOO HIGH, CHECK KALIBR., REPLACE PROFILE, SERVICE REQUIRED, REPLACE SEALS, REPL. MOTOR S.

Note: Refer to Section 6 Troubleshooting, page 31 for a list of all error and warning messages as well as a description of all necessary corrective actions.

4.4.2 SENSOR setup

SELECT SENSOR (if there is more than one sensor)

CALIBRATION

FACTOR

OFFSET

ZERO CAL

1 SAMPLE CAL

VERIFY

OUTPUT MODE

CAL. CONFIG

CAL INTERVAL

SET CAL DEFLT

See 4.5.2 Zero point

calibration, page 23

See 4.5.3 1 point

calibration, page 23

See 4.6.1 Zero point

adjustment, page 24

ACTIVE HOLD TRANSFER SELECTION Counter for customer

cal. 0-30 d, default

setting: 0 d

Adjustable from 0.80-1.20 for matching the comparison measurements

Adjustable from -250 to +250 mE for zero point correction

Behaviour of the outputs during calibration or zero point setting

4.4.2 SENSOR setup

SELECT SENSOR (if there is more than one sensor)

CONFIGURATION

EDIT NAME 10-character PARAMETER SAK254, SAC254, Ext254, Abs254, T/cm, BODuv, BSBuv, CSBuv, CODuv, DOCuv, TOCuv, ... MEAS UNIT 1/m, mE, AU, %, mg/l, ppm CORRELATION 2 value pairs: 1[1/m] and 1[mg/l] - 2[1/m] and 2[mg/l] REFERENCE ON/OFF

MEAS INTERVAL

RESPONSE TIME

CLEANING 1/measurement, 1, 2, 3, 5, 6, 10, 12, 15, 20, 30 min, 1, 2, 3, 4, 6, 12 h, 10:00h

WIPER MODE

BYPASS yes/no

SET DEFAULTS ARE YOU SURE?

15, 20, 30 sec; 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 min

1-12 x MEAS INTERVAL

SINGLE Normal setting

DOUBLE A-B-A

DOUBLE B-A-B

Indication of the actual response time in min.

Double wiping frequency

MEAS INTERVAL: 5 min

RESPONSE TIME: 15 min

WIPER MODE: B-A-B

Operation

WIPER MODE: B Inhibit wiper "extension"

Reset to the factory configuration.

Operation

4.4.2 SENSOR setup

SELECT SENSOR (if there is more than one sensor)

MAINT.PROC

UVAS plus sc Instrument name EDIT NAME SERIAL NUMBER FILTER DATA Measuring and reference wavelengths RANGE

PROBE INFO

CAL. DATA

COUNTERS

PATHLENGTH Width of the measuring path WIPER P/N Item number MODEL NUMBER Item number CODE VERSION Sensor software DRIVER VERS PRODUCTION DATE Production date OFFSET FACTOR a Internal factor b Internal factor

DATE STD.: 3000 mE

DEXT 100% DEXT 50% DEXT 25% GAIN Instrument factor CAL. Date of the last factory calibration r m ir im TOTAL TIME Counters

REPLACE PROFILE

CHECK CALIBR.

SERVICE

SEALS

SHAFTSEALS

MOTOR Counters FLASH Counters

Counter 50000-0-neg. number

Counter for test interval

Counter 180 d-0-neg. number

Counter 365 d-0-neg. number

Counter 500000-0neg. number

Adjustable on the CALIBRATION menu

Date of the last change of OFFSET and/or FACTOR

Internal calibration data

Negative if passed

4.4.2 SENSOR setup

SELECT SENSOR (if there is more than one sensor)

MAINT.PROC

OUTPUT MODE information

Operation

REPLACE PROFILE See 5.3 Changing wiper profile, page 29

WIPE (wiping process) DRIVE OUT WIPER

(wiper profile extends, on bypass versions

WIPERTEST

SIGNALS

(Measurement 1/sec)

OUTPUT MODE

inhibited: see 5.2 Cleaning measuring path,

page 28

MOTOR CURRENT (motor current during the wiping process)

Average value Individual measured value Single measured value for AQS

(FACTOR = 1, OFFSET = 0) W.POS (wiper position) DEXT (delta extinction EM-ER) EM (extinction measuring channel) ER (extinction reference channel) M (measured level) R (reference level) IM (intensity measuring channel) IR (intensity reference channel) rd (dark value reference) md (dark value measuring channel) extd (dark value extinction ) MOIST Behaviour of the instrument outputs when the

Maint.Proc. menu is opened

Operation

4.5 Calibration

4.5.1 Verifying

The instrument has been carefully calibrated before delivery and the calibration will not change for a long time.

It is recommended to regularly check the calibration (4.5.1 Verifying, page 22) with a test glass. In case of large deviations, first a zero point calibration (4.5.2

Zero point calibration, page 23) must be performed to compensate for a zero point

offset, before the gradient is allowed to be changed with the 1 point calibration (4.5.3 1 point calibration, page 23).

During the calibration only mE values are displayed. The setpoint adjustment is also referred to the unit of measure mE. This setpoint is noted on the filter for the verification, liquid standards must be measured with an external spectral photometer and the measured values converted to the sensor layer thickness.

1. Open the MAIN MENU.

2. Press SENSOR SETUP and confirm.

3. Press SELECT SENSOR (if there is more than one sensor) and confirm.

4. Press CALIBRATION and confirm.

5. Remove sensor from the tank and rinse measuring path with water.

6. Press VERIFY and confirm. The wiper will come out.

7. Confirm INSERT FILTER PRESS ENTER TO CONTINUE...

8. Confirm WHEN STABLE PRESS ENTER X.X

9. Press CALIBRATION and confirm.

10. Edit in 1 SAMPLE-CAL. (+x.x) the setpoint adjustment according to the test

glass and confirm.

11. Confirm FACTOR: X.XX.

12. The corrected measured value is displayed. Confirm WHEN STABLE PRESS

ENTER X.X.

13. Press FINISH and confirm.

14. Confirm REMOVE FILTER PRESS ENTER.

Then the wiper moves out . Immerse sensor at the measuring location.

15. Press the back-button to leave the menu CALIBRATE.

16. Confirm RETURN PROBE TO PROCESS.

17. Confirm READY. Automatic wiping action and back to measurements.

4.5.2 Zero point calibration

Operation

1. Open the MAIN MENU.

2. Press SENSOR SETUP and confirm.

3. Press SELECT SENSOR (if there is more than one sensor) and confirm.

4. Press CALIBRATION and confirm.

5. Select ZERO CAL and confirm.

6. Remove sensor from the tank and rinse measuring path with water. Align

measuring path horizontally and completely fill with distilled water. Confirm FILL IN AQUA DEST PRESS ENTER TO CONTINUE.

7. Confirm WHEN STABLE PRESS ENTER DEXT: +/- X.X mE.

8. Press CALIBRATION and confirm.

9. Select OFFSET: X.X mE.

4.5.3 1 point calibration

10. Confirm WHEN STABLE PRESS ENTER +/- X.X.

11. Press FINISH and confirm.

12. Press the back-button to leave the menu CALIBRATE.

13. Immerse sensor at the measuring location and confirm RETURN PROBE TO

PROCESS.

14. Confirm READY. Automatic wiping action and back to measurements.

1. Open the MAIN MENU.

2. Press SENSOR SETUP and confirm.

3. Press SELECT SENSOR (if there is more than one sensor) and confirm.

4. Press CALIBRATION and confirm.

5. Select 1 SAMPLE CAL and confirm.

6. Remove sensor from the tank and rinse measuring path with water. Align

measuring path horizontally and completely fill with a reference sample. Confirm FILL IN CAL STANDARD PRESS ENTER.

7. Confirm WHEN STABLE PRESS ENTER x. x.

8. Press CALIBRATION and confirm.

9. Edit in 1 SAMPLE-CAL. (+x.x) the setpoint adjustment according to the

reference sample and confirm.

Operation

10. Confirm FACTOR: X.XX.

11. Confirm WHEN STABLE PRESS ENTER X.X.

12. Press FINISH and confirm.

13. Press the back-button to leave the menu CALIBRATE.

14. Immerse sensor at the measuring location and confirm RETURN PROBE TO

PROCESS.

15. Confirm READY. Automatic wiping action and back to measurements.

4.6 Adjusting measured values

If the comparative measurements in the laboratory do not provide adequate agreement with the measured values from the probe, electronic measured value adjustment (zero point and factor) can be performed as a provisional measure until the next customer service visit.

The settings should also only be made when a zero point check after cleaning the measuring window and the verification have been unsatisfactory.

4.6.1 Zero point adjustment

4.6.2 Setting factor

1. Open the MAIN MENU.

2. Press SENSOR SETUP and confirm.

3. Press SELECT SENSOR (if there is more than one sensor) and confirm.

4. Press CALIBRATION and confirm.

5. Press OFFSET and confirm.

6. Make a manual zero point offset by editing xx mE and confirm.

7. Press the back-button to leave the menu CALIBRATE.

8. Immerse sensor at the measuring location and confirm RETURN PROBE TO

PROCESS.

9. Confirm READY. Automatic wiping action and back to measurements.

1. Open the MAIN MENU.

2. Press SENSOR SETUP and confirm.

3. Press SELECT SENSOR (if there is more than one sensor) and confirm.

4. Press CALIBRATION and confirm.

5. Press FACTOR and confirm.

6. Edit the Factor x.xx and confirm. The current measured value is multiplied by

this factor, from 0.80-1.20, before it appears as a calculated value on the display.

7. Press the back-button to leave the menu CALIBRATE.

8. Immerse sensor at the measuring location and confirm RETURN PROBE TO

PROCESS.

9. Confirm READY. Automatic wiping action and back to measurements.

4.7 Conversion into other total parameters

SAC 254 is an independent total parameter for the dissolved organic content of water and evaluates, like all other total parameters, only ever a specific fraction of the water load. Despite their major similarities, total parameters can only be converted from one to another within certain limits. However, if a correlation is found between SAC 254 and another total parameter, the converted measured values from UVAS probes can be displayed as mg/l TOCuv, CSBuv etc.

To determine the correlation, first a measurement of the SAC curve should be made over a few days. Only a regular daily curve with pronounced low and high load times such as with municipal waste water offers a good basis for satisfactory conversion.

Operation

At the times of day found for low and high load

• A representative sample should be taken at the UVAS probe location,

• The related SAC value should be read and

• A laboratory measurement of the parameter to be correlated should be

made.

Example: Sample 1 SAC 254: 105 1/m ; TOC: 150 mg/l: Sample 2 SAC 254: 35 1/m ; TOC: 38 mg/l:

SENSOR SETUP

CONFIGURATION

SET PARAMETER

MEAS UNIT mg/l

CORRELATION

TOCuv

PAI R 1

1 [1/m] = 105

1 [mg/l] = 150

PAI R 2

2 [1/m] = 35

2 [mg/l] = 38

The correlation entered should be regularly checked by means of comparative measurements in the laboratory.

Operation

Section 5 Maintenance

Pinch Hazard. Only qualified personnel should conduct the tasks described in this section of the manual.

The cleanliness of the two measuring windows in the sensor measuring path is crucial for correct measured results!

The measuring windows should be checked weekly for soiling and the wiper profile checked for wear.

The seals must be replaced annually by the manufacturer's customer service! If the seals are not changed regularly, water may enter the probe head and seriously damage the instrument!

5.1 Maintenance schedule

Maintenance task

CAUTION

NOTICE

Visual inspection weekly

Check calibration

Inspection six months (counter)

Seal change annually (counter)

Wiper profile change as per counter

Consumables

Number Designation Average service life*

1 Wiper sets 1 year 1 Wiper motor 5 years 1 Seal set 1 year 1 Flash lamp 10 years 2 Measuring windows 5 years 1 Filter set 5 years 2 O-ring through-flow unit 1 year

* On operation as per factory settings and correct use

Comparative measurement weekly

(depending on the ambient conditions)

Maintenance

5.2 Cleaning measuring path

Potential danger with contact with chemical/biological substances. Working with chemical samples, standards and reagents can be dangerous. Make yourself familiar with the necessary safety procedures and the correct handling of

the chemicals before use and read and follow all relevant safety data sheets.

Normal operation of this device may require the use of chemicals or samples that are biologically unsafe.

• Observe all cautionary information printed on the original solution containers and safety data sheets prior to their use.

• Dispose of all consumed solutions in accordance with the local and national regulations and laws.

• Select the type of protective equipment suitable to the concentration and quantity of the dangerous material being used.

If the wiper interval is set correctly and the wiper profile is changed on time, additional cleaning of the measuring path is not necessary.

DANGER

1. Open the MAIN MENU.

2. Press SENSOR SETUP and confirm.

3. Press SELECT SENSOR (if there is more than one sensor) and confirm.

4. Press DIAG/TEST and confirm.

5. Press TEST/MAINT and confirm.

6. Press SIGNALS and confirm.

7. Remove sensor from the tank.

Depending on the degree and nature of the soiling, clean using window cleaner, grease remover or 5 % hydrochloric acid (operating the wiper arm using the Enter key can help the cleaning process.)

After leaving to soak for 5–10 minutes, you must carefully clean the measuring path with distilled water. Objective: [ER] and [EM] < 500

Confirm ENTER=WIPE.

8. Press the back-button to leave the menu SIGNALS.

9. Press the back-button to leave the menu TEST/MAINT. Confirm RETURN

PROBE TO PROCESS.

10. Confirm READY. Automatic wiping action and back to measurements.

5.3 Changing wiper profile

Obey the locally applicable accident prevention regulations. Wear protective gloves where necessary during the change of the wiper rubber.

Note: Note for bypass version: First slide the sensor out of the though-flow cell until the measuring path is visible and the wiper can be extended without resistance!

1. For this purpose on the menu SENSOR SETUP, CONFIGURATION, Set

Figure 8 Cahnging wiper profile

Maintenance

CAUTION

BYPASS to "no"!

2. Open the MAIN MENU.

3. Press SENSOR SETUP and confirm.

4. Press SELECT SENSOR (if there is more than one sensor) and confirm.

5. Press DIAG/TEST and confirm.

6. Press TEST/MAINT and confirm.

7. Press REPLACE PROFILE and confirm.

8. Lift retaining strap (1) and confirm REMOVE CAP.

Note: Only on instrument versions with 1 or 2 mm measuring path.

9. Confirm REPLACE PROFILE, PUT ON CAP. The wiper (2) moves out automatically.

10. Press the back-button to leave the menu REPLACE PROFILE.

Maintenance

LZX428

11. Immerse sensor at the measuring location and confirm RETURN PROBE TO PROCESS.

12. Confirm READY. Automatic wiping action and back to measurements.

5.4 Seal change (bypass version)

5.4.1 UVAS plus sc

Section 6 Troubleshooting

6.1 Error messages

Possible sensor error messages are displayed by the sc controller.

Table 4 Error messages

Error displayed Rectification

NONE

Check MOIST value on the SENSOR SETUP menu,

MOIST

R < M Call service DEXT < 0.0 Check calibration, call service W.POS. UNKNOWN Check measuring path, call service W. BLOCKED Check measuring path, call service FLASH FAILURE Call service R TOO HIGH Call service

TEST/MAINT, MAINT.PROC., SIGNALS. Remove sensor from the tank and call service

6.2 Warnings

Possible sensor warning messages are displayed by the sc controller.

Table 5 Warnings

Warning displayed Cause Rectification

NONE Correct measuring operation

EM TOO HIGH

CONC. TOO HIGH

CHECK KALIBR. Test interval elapsed Check calibration REPLACE PROFILE Counter elapsed Change wiper profile SERVICE REQUIRED Counter elapsed Call service REPLACE SEALS Counter elapsed Call service SHAFT SEALS REPL. Counter elapsed Call service

Turbidity, organic content or nitrate concentration too high, measuring range exceeded as a result

Nitrate concentration too high, as a result measuring range exceeded

Check measurement in the laboratory

Troubleshooting

Section 7 Replacement Parts

UVAS plus sc (1 mm) ..................................................................................................................... LXV418.00.10001

UVAS plus sc (2 mm) ..................................................................................................................... LXV418.00.20001

UVAS plus sc (5 mm) ..................................................................................................................... LXV418.00.50001

UVAS plus sc (50 mm) ................................................................................................................... LXV418.00.90001

User Manual .................................................................................................................................. DOC023.52.03230

Accessories

Cable extension set (5 m)............................................................................................................................... LZX437

Cable extension set (10 m)............................................................................................................................. LZX438

Cable extension set (15 m)............................................................................................................................. LZX439

Cable extension set (20 m)............................................................................................................................. LZX440

Cable extension set (30 m)............................................................................................................................. LZX462

Cable extension set (50 m)............................................................................................................................. LZX462

Cable extension set (100 m)........................................................................................................................... LZX512

Sensor bracket incl. 90° adapter .................................................................................................... LZX414.00.10000

Comprising:

Base .......................................................................................................................................................... ATS010

Fastening lug............................................................................................................................................. HPL061

Retaining clamp (2x).................................................................................................................................. LZX200

Mounting pipe 2 m.................................................................................................................................... BRO060

Hardware HS............................................................................................................................................. LZX416

Extension pipe 1.8 m ..................................................................................................................................... BRO062

Extension pipe 1.0 m ..................................................................................................................................... BRO061

Extension pipe 1.35 m................................................................................................................................... BRO068

Second fastening point (incl. retaining clamp)................................................................................................ LZX456

Probe adapter 90° ......................................................................................................................................... AHA034

Hardware, sensor fastening............................................................................................................................ LZX417

Base 90°......................................................................................................................................................... ATS011

Consumables

Wiper profile 1 mm (5 pcs.) ............................................................................................................................ LZX148

Wiper profile 2 mm (5 pcs.) ............................................................................................................................ LZX012

Wiper profile 5 mm (5 pcs.) .............................................................................................................................LZX117

Wiper profile 50 mm (10 pcs.) .........................................................................................................................LZX119

Section 8 Warranty and liability

The manufacturer warrants that the product supplied is free of material and manufacturing defects and undertakes the obligation to repair or replace any defective parts at zero cost.

The warranty period for instruments is 24 months. If a service contract is taken out within 6 months of purchase, the warranty period is extended to 60 months.

With the exclusion of further claims, the supplier is liable for defects including the lack of assured properties as follows: All those parts that, within the warranty period calculated from the day of the transfer of risk, can be demonstrated to have become unusable or that can only be used with significant limitations due to a situation present prior to the transfer of risk, in particular due to incorrect design, poor materials or inadequate finish will be improved or replaced, at the supplier's discretion. The identification of such defects must be reported to the supplier in writing without delay, but no later than 7 days after the identification of the fault. If the customer fails to notify the supplier, the product is considered approved despite the defect. Further liability for any direct or indirect damages is not accepted.

If instrument-specific maintenance and servicing work defined by the supplier is to be performed within the warranty period by the customer (maintenance) or by the supplier (servicing) and these requirements are not carried out, claims for damages due to the failure to comply with the requirements are rendered void.

Any further claims, in particular claims for consequential damages, cannot be made.

Consumables and damage caused by improper handling, unsafe assembly or by incorrect use are excluded from this provision.

Process instruments of the manufacturer are of proven reliability in many applications and are therefore often used in automatic control loops to provide the most economical operation possible for the related process.

To avoid or limit consequential damage, it is therefore recommended to design the control loop such that a malfunction in an instrument results in an automatic change over to the backup control system, which is the most secure operating condition for the environment and for the process.

Section 9 Contact

HACH Company World Headquarters

P.O. Box 389 Loveland, Colorado 80539-0389 U.S.A. Tel (800) 227-HACH (800) -227-4224 (U.S.A. only) Fax (970) 669-2932 orders@hach.com www.hach.com

HACH LANGE GMBH

Willstätterstraße 11 D-40549 Düsseldorf Tel. +49 (0)2 11 52 88-320 Fax +49 (0)2 11 52 88-210 info@hach-lange.de www.hach-lange.de

HACH LANGE GMBH

Rorschacherstrasse 30a CH-9424 Rheineck Tel. +41 (0)848 55 66 99 Fax +41 (0)71 886 91 66 info@hach-lange.ch www.hach-lange.ch

Repair Service in the United States:

HACH Company Ames Service 100 Dayton Avenue Ames, Iowa 50010 Tel (800) 227-4224 (U.S.A. only) Fax (515) 232-3835

HACH LANGE LTD

Pacific Way Salford GB-Manchester, M50 1DL Tel. +44 (0)161 872 14 87 Fax +44 (0)161 848 73 24 info@hach-lange.co.uk www.hach-lange.co.uk

HACH LANGE FRANCE S.A.S.

8, mail Barthélémy Thimonnier Lognes F-77437 Marne-La-Vallée cedex 2 Tél. +33 (0) 820 20 14 14 Fax +33 (0)1 69 67 34 99 info@hach-lange.fr www.hach-lange.fr

Repair Service in Canada:

Hach Sales & Service Canada Ltd. 1313 Border Street, Unit 34 Winnipeg, Manitoba R3H 0X4 Tel (800) 665-7635 (Canada only) Tel (204) 632-5598 Fax (204) 694-5134 canada@hach.com

HACH LANGE LTD

Unit 1, Chestnut Road Western Industrial Estate IRL-Dublin 12 Tel. +353(0)1 460 2522 Fax +353(0)1 450 9337 info@hach-lange.ie www.hach-lange.ie

HACH LANGE NV/SA

Motstraat 54 B-2800 Mechelen Tel. +32 (0)15 42 35 00 Fax +32 (0)15 41 61 20 info@hach-lange.be www.hach-lange.be

Repair Service in Latin America, the Caribbean, the Far East, Indian Subcontinent, Africa, Europe, or the Middle East:

Hach Company World Headquarters, P.O. Box 389 Loveland, Colorado, 80539-0389 U.S.A. Tel +001 (970) 669-3050 Fax +001 (970) 669-2932 intl@hach.com

HACH LANGE GMBH

Hütteldorfer Str. 299/Top 6 A-1140 Wien Tel. +43 (0)1 912 16 92 Fax +43 (0)1 912 16 92-99 info@hach-lange.at www.hach-lange.at

DR. LANGE NEDERLAND B.V.

Laan van Westroijen 2a NL-4003 AZ Tiel Tel. +31(0)344 63 11 30 Fax +31(0)344 63 11 50 info@hach-lange.nl www.hach-lange.nl

HACH LANGE APS

Åkandevej 21 DK-2700 Brønshøj Tel. +45 36 77 29 11 Fax +45 36 77 49 11 info@hach-lange.dk www.hach-lange.dk

HACH LANGE LDA

Av. do Forte nº8 Fracção M P-2790-072 Carnaxide Tel. +351 214 253 420 Fax +351 214 253 429 info@hach-lange.pt www.hach-lange.pt

HACH LANGE KFT.

Vöröskereszt utca. 8-10. H-1222 Budapest XXII. ker.

Tel. +36 1 225 7783 Fax +36 1 225 7784 info@hach-lange.hu www.hach-lange.hu

HACH LANGE AB

Vinthundsvägen 159A SE-128 62 Sköndal Tel. +46 (0)8 7 98 05 00 Fax +46 (0)8 7 98 05 30 info@hach-lange.se www.hach-lange.se

HACH LANGE SP. ZO.O.

ul. Krakowska 119 PL-50-428 Wrocław Tel. +48 801 022 442 Zamówienia: +48 717 177 707 Doradztwo: +48 717 177 777 Fax +48 717 177 778 info@hach-lange.pl www.hach-lange.pl

HACH LANGE S.R.L.

Str. Căminului nr. 3, et. 1, ap. 1, Sector 2 RO-021741 Bucureşti Tel. +40 (0) 21 205 30 03 Fax +40 (0) 21 205 30 17 info@hach-lange.ro www.hach-lange.ro

HACH LANGE S.R.L.

Via Rossini, 1/A I-20020 Lainate (MI) Tel. +39 02 93 575 400 Fax +39 02 93 575 401 info@hach-lange.it www.hach-lange.it

HACH LANGE S.R.O.

Zastrčená 1278/8 CZ-141 00 Praha 4 - Chodov Tel. +420 272 12 45 45 Fax +420 272 12 45 46 info@hach-lange.cz www.hach-lange.cz

HACH LANGE

8, Kr. Sarafov str. BG-1164 Sofia Tel. +359 (0)2 963 44 54 Fax +359 (0)2 866 15 26 info@hach-lange.bg www.hach-lange.bg

HACH LANGE S.L.U.

Edificio Seminario C/Larrauri, 1C- 2ª Pl. E-48160 Derio/Vizcaya Tel. +34 94 657 33 88 Fax +34 94 657 33 97 info@hach-lange.es www.hach-lange.es

HACH LANGE S.R.O.

Roľnícka 21 SK-831 07 Bratislava – Vaj nory Tel. +421 (0)2 4820 9091 Fax +421 (0)2 4820 9093 info@hach-lange.sk www.hach-lange.sk

HACH LANGE SU ANALİZ SİSTEMLERİ LTD.ŞTİ.

Ilkbahar mah. Galip Erdem Cad. 616 Sok. No:9 TR-Oran-Çankaya/ANKARA Tel. +90312 490 83 00 Fax +90312 491 99 03 bilgi@hach-lange.com.tr www.hach-lange.com.tr

Contact

HACH LANGE D.O.O.

Fajfarjeva 15 SI-1230 Domžale Tel. +386 (0)59 051 000 Fax +386 (0)59 051 010 info@hach-lange.si www.hach-lange.si

HACH LANGE OOO

Finlyandsky prospekt, 4A Business Zentrum “Petrovsky fort”, R.803 RU-194044, Sankt-Petersburg Tel. +7 (812) 458 56 00 Fax. +7 (812) 458 56 00 info.russia@hach-lange.com www.hach-lange.com

ΗΑCH LANGE E.Π.Ε.

Αυλίδος 27 GR-115 27 Αθήνα Τηλ . +30 210 7777038 Fax +30 210 7777976 info@hach-lange.gr www.hach-lange.gr

HACH LANGE D.O.O.

Ivana Severa bb HR-42 000 Varaždin Tel. +385 (0) 42 305 086 Fax +385 (0) 42 305 087 info@hach-lange.hr www.hach-lange.hr

HACH LANGE MAROC SARLAU

Villa 14 – Rue 2 Casa Plaisance Quartier Racine Extension MA-Casablanca 20000 Tél. +212 (0)522 97 95 75 Fax +212 (0)522 36 89 34 info-maroc@hach-lange.com www.hach-lange.ma

Appendix A ModBUS Register Information

Table 6 Sensor ModBUS Registers

Group Name Register # Data Type Length R/W Description

measurement 40001 Float 2 R diplayed measurement value unit 40003 Unsigned Integer 1 R/W unit : mg/l = 0 : g/l = 1 parameter 40004 Unsigned Integer 1 R/W parameter Measure interval 40005 Unsigned Integer 1 R/W measuring interval correction 40006 Float 2 R/W correction offset 40008 Float 2 R/W offset integration 40010 Unsigned Integer 1 R/W integration, always 1 cleaning_interval 40011 Unsigned Integer 1 R/W cleaning interval wiper mode 40012 Unsigned Integer 1 R/W wiper mode wiper state 40013 Unsigned Integer 1 R/W wiper state resp time 40014 Unsigned Integer 1 R/W response time drv_struct_ver 40015 Unsigned Integer 1 R driver structure version drv_firmw_ver 40016 Unsigned Integer 1 R driver firmware version drv_cont_ver 40017 Unsigned Integer 1 R driver content version location 40018 String 5 R/W location path length 40023 Float 2 R path length profile 40025 Integer 2 R profile counter motor_cycles 40027 Integer 2 R motor cycles flash_counter 40029 Integer 2 R flash counter sealing_counter 40031 Integer 2 R sealing counter service_counter 40033 Integer 2 R service counter operating_hours 40035 Integer 2 R operating hours shaft_sealing_counter 40037 Integer 2 R shaft sealing counter profile reset val 40039 Integer 2 R/W profile reset val seals reset val 40041 Integer 2 R/W seals reset val service reset val 40043 Integer 2 R/W service reset val shaft seal reset val 40045 Integer 2 R/W shaft seal reset val des_measurement 40047 Float 2 R desired measurement value meas_single_value 40049 Float 2 R measurement single value dext 40051 Float 2 R delta extiction EM 40053 Float 2 R m - extiction ER 40055 Float 2 R r - extiction M 40057 Float 2 R m R 40059 Float 2 R r intensity_mes 40061 Float 2 R m - intensity intensity_ref 40063 Float 2 R r - intensity humidity_main 40065 Float 2 R humidity - main conc_blank 40067 Float 2 R concentration whithout correction cal_date 40069 Time 2 R calibration time and date user_cal_date 40071 Time 2 R user calibration time and date std_s3 40073 Float 2 R standard S3 cal_L1 40075 Float 2 R cal. point 1

ModBUS Register Information

Table 6 Sensor ModBUS Registers

cal_L2 40077 Float 2 R cal. point 2 cal_L3 40079 Float 2 R cal. point 3 cal_mes 40081 Float 2 R m - calibration cal_ref 40083 Float 2 R r - calibration cal_intensity_mes 40085 Float 2 R intensity m - calibration cal_intensity_ref 40087 Float 2 R intensity r - calibration cal_ext 40089 Float 2 R extinction - calibration process 40091 Unsigned Integer 1 R/W process register menu 40092 Unsigned Integer 1 R menu state

gain_ref 40093 Integer 1 R

gain_mes 40094 Integer 1 R

wiper_lim_a 40095 Integer 1 R wiper limit a wiper_lim_b 40096 Integer 1 R wiper limit b wiper_lim_out 40097 Integer 1 R wiper limit out prg_vers 40098 String 4 R program version ser_no 40102 Integer 2 R serial number cal_out_cfg 40104 Integer 1 R cal. Output mode user_cal_int 40105 Integer 1 R/W user calibration interval wiper_current 40106 Integer 1 R wiper motor current in mA resp_time_min 40107 Integer 1 R response time in min flash_per_fil 40108 Integer 2 R flash per filter cm1 40110 Float 2 R/W meas. Cap 1 cm2 40112 Float 2 R/W meas cap 2 cr1 40114 Float 2 R/W ref cap1 cr2 40116 Float 2 R/W ref cap2 lambda_m 40118 Float 2 R/W lambda meas lambda_r 40120 Float 2 R/W lambda ref transm_m 40122 Float 2 R/W transmission meas transm_r 40124 Float 2 R/W ransmission ref cal_menu 40126 Unsigned Integer 1 R/W cal menu wiper_menu 40127 Unsigned Integer 1 R/W wiper menu maint_menu 40128 Unsigned Integer 1 R/W maint_menu service_menu 40129 Unsigned Integer 1 R/W service menu flash_repl 40130 Unsigned Integer 1 R/W flash replaced question edit_menu 40131 Unsigned Integer 1 R/W edit menu def_menu 40132 Unsigned Integer 1 R/W default menu filter_data_menu 40133 Unsigned Integer 1 R/W filter data menu prod_date 40134 Time 2 R production date sensor_type 40136 String 8 R/W sensor type filter_set 40144 String 3 R/W filter set user_cal_counter 40147 Integer 1 R user cal. Counter pos_out_en 40148 Unsigned Integer 1 R/W pos. Out enable

low byte = gain ref-channel, high byte = second cap. on/off

low byte = gain mes-channel, high byte = second cap. on/off

Hach-Lange UVAS sc User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

UVAS sc

Table of Contents

Section 1 Specifications

Section 2 General information

2.1 Safety information

2.1.1 Hazard information in this manual

2.1.2 Warning labels

2.2 Applications

2.3 Measuring principle

Section 3 Installation

3.1 Installation overview

3.2 Sensor

3.3 Attaching the Sensorcable

3.4 Wiring safety information

3.4.1 Sensor connection and wiring

Section 4 Operation

4.1 sc controller operation

4.2 Sensor setup

4.3 Sensor data logger

4.4 Menu structure

4.4.1 SENSOR STATUS

4.4.2 SENSOR setup

4.5 Calibration

4.5.1 Verifying

4.5.2 Zero point calibration

4.5.3 1 point calibration

4.6 Adjusting measured values

4.6.1 Zero point adjustment

4.6.2 Setting factor

4.7 Conversion into other total parameters

Section 5 Maintenance

5.1 Maintenance schedule

5.2 Cleaning measuring path

5.3 Changing wiper profile

5.4 Seal change (bypass version)

5.4.1 UVAS plus sc

Section 6 Troubleshooting

6.1 Error messages

6.2 Warnings

Section 7 Replacement Parts

Section 8 Warranty and liability

Section 9 Contact

Appendix A ModBUS Register Information