HACH 9582 Polymetron Dissolved Oxygen Analyzer User Manual

9582 Polymetron Dissolved Oxygen Analyzer
User Manual

Section 1 Online user manual

This Basic User Manual contains less information than the User Manual, which is available on the manufacturer’s website.

Section 2 Specifications

Specifications are subject to change without notice.
Sensor

Sensor module

Section 3 General information

In no event will the manufacturer be liable for damages resulting from any improper use of product or failure to comply with the instructions in the manual. The manufacturer reserves the right to make changes in this manual and the products it describes at any time, without notice or obligation.
Revised editions are found on the manufacturer’s website.
3.1 Safety information
The manufacturer is not responsible for any damages due to misapplication or misuse of this product including, without limitation, direct, incidental and consequential damages, and disclaims such damages to the full extent permitted under applicable law. The user is solei responsible to identify critical application risks and install appropriate mechanisms to protect processes during a possible equipment malfunction.
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.
Make sure that the protection provided by this equipment is not impaired. Do not use or install this equipment in any manner other than that specified in this manual.
3.1.1 Use of hazard information
**DANGER
Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.
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.
3.1.2 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 on the instrument is referenced in the manual with a precautionary statement.

| This is the safety alert symbol. Obey all safety messages that follow this symbol to avoid potential injury. If on the instrument, refer to the instruction manual for operation or safety information.
---|---
| This symbol indicates that a risk of electrical shock and/or electrocution exists.
| This symbol indicates the presence of devices sensitive to Electro-static Discharge (ESD) and indicates that care must be taken to prevent damage with the equipment.
| This symbol, when noted on a product, indicates the instrument is connected to alternate current.
| Electrical equipment marked with this symbol may not be disposed of in European domestic or public disposal systems. Return old or end-of-life equipment to the manufacturer for disposal at no charge to the user.
| Products marked with this symbol indicates that the product contains toxic or hazardous substances or elements. The number inside the symbol indicates the environmental protection use period in years.
---|---
| Products marked with this symbol indicates that the product conforms to relevant South Korean EMC standards.

3.1.3 EMC compliance statement (Korea)

equipment meets Industrial (Class A) EMC requirements. This equipment is for use in industrial environments only.

3.2 Product overview
This single-channel analyzer is used for the measurement of dissolved oxygen in boiler feedwaters, economizers, condensers and in general all thermal equipment using water as a heat transfer liquid.
3.3 Product components
Make sure that all components have been received. If any items are missing or damaged, contact the manufacturer or a sales representative immediately.
Components:

• Controller (contains instructions for controller installation and operation)
• Sensor (contains instructions for sensor installation and operation)
•  Sensor cable
•  Flow chamber
•  Sensor maintenance kit (contains membranes and electrolyte)

Section 4 Installation

CAUTION
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the document.
4.1 Installation guidelines

• Put the instrument in a location that has access for operation, service and calibration.
• Make sure that there is good view of the display and controls.
• Keep the instrument away from a heat source.
• Keep the instrument away from vibrations.
•  Keep the sample tubing as short as possible to minimize the response time.
•  Make sure that there is no air in the sample supply line.

4.2 Assemble the sensor
CAUTION
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protective equipment appropriate to the chemicals that are handled. Refer to the current safety data sheets (MSDS/SDS) for safety protocols.
Electrolyte must be added to the sensor before use. Refer to the steps that follow and Figure 1.

1. Install the membrane on the sensor body by hand as far as it will go.
2. Use the syringe to add 5 mL of electrolyte to the sensor body. Make sure that there are no impurities or bubbles in the electrolyte.
3. Gently push the electrode into the sensor body until there is resistance. Do not force the electrode.
4.  Install and tighten the holding nut by hand.
5.  Install the gasket and filling screw to prevent electrolyte leakage or external contamination from the sample. Carefully tighten the screw with a screwdriver without using excessive force.

4.3 Install the sensor in the process
NOTICE
Keep the sensor in a vertical position with the membrane down during mounting and removal. Do not shake the sensor so that oxygen does not contaminate the electrolyte.
Refer to the steps that follow and Figure 2 to mount the sensor in the flow chamber.

1. Connect the sensor cable to the sensor and tighten the connector by hand. Do not turn the cable or the sensor.
2.  Put the sensor into the flow chamber and tighten the sensor clamping nut by hand.
3. Connect the sample line to the sample input connector.
4. Connect the sample output to the sample output connector.

4.4 Install the controller
Refer to the controller documentation to see mounting and wiring instructions for external controllers.
4.5 Connect the sensor to the controller

WARNING
Potential Electrocution Hazard. Always disconnect power to the instrument when making electrical connections.

WARNING
Electrocution Hazard. High voltage wiring for the controller is conducted behind the high voltage barrier in the controller enclosure. The barrier must remain in place except when installing modules, or when a qualified installation  technician is wiring for power, relays or analog and network cards.

NOTICE
Potential Instrument Damage. Delicate internal electronic components can be damaged by static electricity, resulting in degraded performance or eventual failure.
Refer to the illustrated steps that follow and Table 1.
Be sure to connect all sensor ground/shield wires to the controller enclosure grounding screws.
Note: If the sensor cable is not long enough to reach the controller, an interconnect cable and junction box are required to extend the distance.

Table 1 Sensor wiring

—
5| Ground| Green
6| Earth| Yellow
7-8| —| —
9| Working electrode| White
10| Counter electrode| Red
11-12| —| —

Section 5 Startup

Make sure that the flow rate and pressure do not exceed the values in Specifications on page 3.

1. Open the valve on the sample line to let sample flow through the analyzer.
2. Turn the knob on the flow meter to set the flow rate.
3. Examine the plumbing for leaks and stop any leaks if found.
4. Apply power to the controller.
5. Make the applicable menu selections when the controller starts.

Section 6 User navigation

Refer to the controller documentation for keypad description and navigation information.
Push the RIGHT arrow key on the controller multiple times to show more information on the home screen and to show a graphical display.

Section 7 Operation

7.1 System configuration
Refer to the controller documentation for system configuration, general controller settings and setup for outputs and communications.

7.2 Configure the sensor
Use the CONFIGURE menu to enter identification information for the sensor and to change options for data handling and storage.

1. Push the menu key, select SENSOR SETUP>CONFIGURE.
2. Use the arrow keys to select an option and push enter. To enter numbers, characters or punctuation, push and hold the up or down arrow keys. Push the right arrow key to advance to the next space.

measure screen.
The name is limited to 16 characters in any combination of letters, numbers, spaces or punctuation.
SENSOR S/N| Allows the user to enter the serial number of the sensor, limited to 16 characters in any combination of letters,  numbers, spaces or punctuation.
MEAS UNITS| Changes the measurement units—Select the unit from the list available.
PRESSURE UNITS| Sets the units for atmospheric pressure—Select the unit from the list available.
TEMP UNITS| Sets the temperature units to °C (default) or °F
FILTER| Sets a time constant to increase signal stability. The time constant calculates the average value during a specified time —0 (no effect, default) to 60 seconds (average of signal value for 60 seconds). The filter increases the time for the  sensor signal to respond to actual changes in the process.
LOG SETUP| Sets the time interval for data storage in the data log—5, 30 seconds, 1, 2, 5, 10, 15 (default), 30, 60 minutes.
RESET DEFAULTS| Sets the configuration menu to the default settings. All sensor information is lost.

7.3 Calibrate the sensor

WARNING
Explosion hazard. Removal of a sensor from a pressurized vessel can be dangerous. Reduce the process pressure to below 10 psi before removal. If this is not possible, use extreme caution. Refer to the documentation supplied with the  mounting hardware for more information.
WARNING
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protective equipment appropriate to the chemicals that are handled. Refer to the current safety data sheets (MSDS/SDS) for safety protocols.
CAUTION
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and national regulations.

7.3.1 About sensor calibration
The sensor characteristics slowly shift over time and cause the sensor to lose accuracy. The sensor must be calibrated regularly to maintain accuracy. The calibration frequency varies with the application and is best determined by experience.

7.3.2 Temperature calibration
It is recommended to calibrate the temperature sensor once a year. Calibrate the temperature sensor before calibrating the measurement sensor.

1. Put the sensor in a container of water that is at a known temperature. Under agitation, measure the temperature of the water with an accurate thermometer or independent instrument.
2. Push the menu key and select SENSOR SETUP>CALIBRATE.
3. If the pass code is enabled in the security menu for the controller, enter the pass code.
4. Select 1 PT TEMP CAL and push enter.
5. The raw temperature value is displayed. Push enter.
6. Enter the correct value if different from that displayed and push enter.
7. Push enter to confirm the calibration. The temperature offset is displayed.

7.3.3 Zero calibration
Because of the stability of the electrode, for most applications this calibration is not required but can be used to define the unique zero point of the sensor.

1. Remove the sensor from the process and rinse in distilled water.

2. Push the menu key and select SENSOR SETUP>CALIBRATE.

3. If the pass code is enabled in the security menu for the controller, enter the pass code.

4. Select ZERO CAL and push enter.

5. Select the option for the output signal during calibration:
   Option| Description
   ---|---
   ACTIVE| The instrument sends the current measured output value during the calibration procedure.
   HOLD| The sensor output value is held at the current measured value during the calibration procedure.
   TRANSFER| A preset output value is sent during calibration. Refer to the controller user manual to change
   the preset value.

6. Place the clean sensor in a zero concentration solution, push enter.

7. Wait for up to one hour for the value to stabilize and push enter.

8. Review the calibration result:
   • PASS—the sensor is calibrated and the offset is displayed.
   • FAIL—the calibration is outside of accepted limits. Clean the sensor and retry with a fresh reference solution. Refer to Troubleshooting on page 17 for more information.

9. If the calibration passed, push enter to continue.

10. If the option for operator ID is set to YES in the CAL OPTIONS menu, enter an operator ID. Refer to Change calibration options on page 13.

11. On the NEW SENSOR screen, select whether the sensor is new:
    Option| Description
    ---|---
    YES| The sensor was not calibrated previously with this controller. The days of operation and previous
    calibration curves for the sensor are reset.
    NO| The sensor was calibrated previously with this controller.

12. Return the sensor to the process and push enter. The output signal returns to the active state and the measured sample value is shown on the measure screen.
    Note: If the output mode is set to hold or transfer, select the delay time when the outputs return to the active state.

7.3.4 Calibration in air
Air calibration is recommended for best accuracy and repeatability.

1. Remove the sensor from the process.

2. Push the menu key and select SENSOR SETUP>CALIBRATE.

3. If the pass code is enabled in the security menu for the controller, enter the pass code.

4. Select AIR CAL and push enter.

5. Select the option for the output signal during calibration:
   Option| Description
   ---|---
   ACTIVE| The instrument sends the current measured output value during the calibration procedure.
   HOLD| The sensor output value is held at the current measured value during the calibration procedure.
   TRANSFER| A preset output value is sent during calibration. Refer to the controller user manual to change
   the preset value.

6. Using a precision certified barometer, measure the atmospheric pressure where the analyzer is located. Use the arrow keys to enter this value if different from the value displayed and push enter.

7. Moisturize the wadding in a calibration cap with a few drops of water. Place the sensor vertically in the calibration cap with the membrane downwards. Tighten the calibration cap and push enter.

8. Wait for the value to stabilize and push enter.

9. Review the calibration result:
   • PASS—the sensor is calibrated and the calibration factor is displayed.
   • FAIL—the calibration is outside of accepted limits. Repeat the calibration with fresh reference solutions. Refer to Troubleshooting on page 17 for more information.

10. If the calibration passed, push enter to continue.

11. If the option for operator ID is set to YES in the CAL OPTIONS menu, enter an operator ID.

12. On the NEW SENSOR screen, select whether the sensor is new:
    Option Description
    YES The sensor was not calibrated previously with this controller. The days of operation and previous calibration curves for the sensor are reset.
    NO The sensor was calibrated previously with this controller.

13. Return the sensor to the process and push enter.
    The output signal returns to the active state and the measured sample value is shown on the measure screen.
    Note: If the output mode is set to hold or transfer, select the delay time when the outputs return to the active state.

7.3.5 Calibration with the process sample
The sensor can remain in the process sample.

1. Push the menu key and select SENSOR SETUP>CALIBRATE.

2. If the pass code is enabled in the security menu for the controller, enter the pass code.

3. Select SAMPLE CAL and push enter.

4. Select the option for the output signal during calibration:
   Option| Description
   ---|---
   ACTIVE| The instrument sends the current measured output value during the calibration procedure.
   HOLD| The sensor output value is held at the current measured value during the calibration procedure.
   TRANSFER| A preset output value is sent during calibration. Refer to the controller user manual to change
   the preset value.

5. With the sensor in the process sample, push enter. The measured value is shown. Wait for the value to stabilize and push enter.

6. With a certified secondary verification instrument measure the concentration value of the sample.
   To avoid impurities in the sample take the measurement before the sample enters the flow chamber. Use the arrow keys to enter this value if different from the value displayed and push enter.

7. Review the calibration result:
   • PASS—the sensor is calibrated and the calibration factor is displayed.
   • FAIL—the calibration is outside of accepted limits. Clean the sensor and retry. Refer to
   Troubleshooting on page 17 for more information.

8. If the calibration passed, push enter to continue.

9. If the option for operator ID is set to YES in the CAL OPTIONS menu, enter an operator ID. Refer to Change calibration options on page 13.

10. On the NEW SENSOR screen, select whether the sensor is new:
    Option| Description
    ---|---
    YES| The sensor was not calibrated previously with this controller. The days of operation and previous
    calibration curves for the sensor are reset.
    NO| The sensor was calibrated previously with this controller.

11. With the sensor still in the process push enter. The output signal returns to the active state and the measured sample value is shown on the measure screen.
    Note: If the output mode is set to hold or transfer, select the delay time when the outputs return to the active state.

7.3.6 Exit calibration procedure
If the back key is pushed during a calibration, the user can exit the calibration.

1. Push the back key during a calibration. Three options are shown:
   Option| Description
   ---|---
   QUIT CAL| Stop the calibration. A new calibration must start from the beginning.
   BACK TO CAL| Return to the calibration.
   LEAVE CAL| Exit the calibration temporarily. Access to other menus is allowed. To return to the
   calibration, push the menu key and select SENSOR SETUP.
2. Use the arrow keys to select one of the options and push enter.

7.3.7 Change calibration options
The user can set a calibration reminder or include an operator ID with calibration data from this
menu.

1. Push the menu key and select SENSOR SETUP>CALIBRATE.
2. If the pass code is enabled in the security menu for the controller, enter the pass code.
3. Select CAL OPTIONS and push enter.
4. Use the arrow keys to select an option and push enter.

years—select the required
delay from the list.
OP ID ON CAL| Includes an operator ID with calibration data—YES or NO (default). The ID is entered
during the calibration.

7.4 Standby function
The measuring range of the 9582 is up to a maximum of 2 ppm. If measurements exceed this value for more than 2.5 minutes the standby function is enabled and no more measurements are taken. To exit standby mode push the menu  key and select SENSOR SETUP>EXIT STANDBY.

Section 8 Maintenance

WARNING
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the document.
8.1 Membrane replacement
CAUTION
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protective equipment appropriate to the chemicals that are handled. Refer to the current safety data sheets (MSDS/SDS) for safety protocols.

NOTICE
Always remove the electrolyte filling plug before removal of the electrode. Do not touch the membrane with the hands. Do not use a worn membrane.
8.1.1 Remove the sensor

1. Turn off the sample supply.
2. Unscrew the sensor cable connector from the sensor. Do not turn the actual cable or the sensor itself.
3. Unscrew the sensor clamping nut from the flow chamber and remove the sensor (Figure 3).

8.1.2 Replace the membrane
Refer to the steps that follow and Figure 4 to replace the sensor membrane.

1. Unscrew the filling screw and remove along with the gasket.
2. Unscrew the holding nut.
3. Carefully remove the electrode from the sensor body.
4. Empty any electrolyte left in the sensor body.
5. Unscrew the old membrane from the sensor body.
6. Install the new membrane. Refer to Assemble the sensor on page 6.

Figure 4 Replace the membrane

8.2 Electrode rejuvenation
After some months of operation (3 to 12 depending on sample oxygen concentration, plant shutdown frequency, etc.), a dark coating of silver bromide (AgBr) may cover part of the silver anode. This coating does not affect the  measurement unless more than 90% of the surface is contaminated.
When changing the electrolyte and membrane, visually check the silver anode. If more than 2/3 of the surface is coated with silver bromide then an electrode rejuvenation is required. To do this, very softly polish the areas coated with the  deposit using a soft abrasive (N° 400 to 600). After polishing, rinse with demineralized water and wipe dry with a soft cloth. Some of the dark coloring may be left to improve sensor stabilization time.
After cleaning, replace the sensor in the sample and leave for 30 minutes for the measurement to stabilize. Once stable, the sensor must be calibrated.

Section 9 Troubleshooting

9.1 General troubleshooting

Excessive time for stabilization or no stabilization during calibration in air.| The sample temperature is very different from the ambient temperature, e.g. 6 °C (43 °F) in water and 35 °C (95 °F) in air will cause a measurement drift.| Do not wait till the sensor temperature equals the external temperature (use temperature compensation).
There is an electrolyte leak through the membrane. The current is too high because of an excessive penetration of oxygen.| Change the membrane.
There is pollution of the electrolyte due to a loose filling screw.| Change the electrolyte. Check there is a gasket in place and tighten the screw using a screwdriver but without using excessive force.
The electrode is not correctly mounted in the sensor body causing an excessive gap between the membrane and the cathode.| Tighten the electrode holding nut.
The membrane is incorrectly installed causing a risk of electrolyte pollution.| Change the electrolyte and reinstall the membrane onto the sensor body as far as it will go finger tight.
Lack of humidity due to high temperature.| Use a calibration cap (see Replacement parts and accessories on page 20).
There is water or humidity in the sensor cable connector.| Dry the sensor cable connector inside and out, and install finger tight.
The gold surface is scratched or damaged.| Change the electrode.
Sludge or particles on the cathode.| Clean the cathode with a soft and absorbent tissue. Rinse the membrane.
Cable or connections damaged when the sensor has been removed.| Check the sensor connection to the
controller module. If correct check the connections to the sensor cable connector.
The sensor is incorrectly positioned. The electrolyte has leaked and air bubbles have entered the cathode.| Put the sensor in the correct position, head down.
No significant
current increase when the sensor is in the air for the calibration.| There is pollution of the electrolyte due to a loose filling screw.| Change the electrolyte. Check there is a gasket in place and tighten the screw using a screwdriver but without using excessive force. Check the sensor is not damaged.
There is pollution of the electrolyte due to a leaking membrane.| Change the electrolyte and the membrane.
The membrane is torn.| Change the membrane.
The electrode is not correctly mounted in the sensor body causing an excessive gap between the membrane and the cathode.| Tighten the electrode holding nut.
Cable or connections damaged when the sensor has been removed.| Check the connection to the controller module. If correct check the connections to the sensor cable connector.
The membrane is wom.| Change the membrane.
There is a dark green deposit of silver bromide (AgBr) on the silver tube.| Polish the tube with a soft abrasive (N° 400 to 600) and replace the membrane.
Important instability
in measuring mode.| There is water or humidity in the sensor cable connector.| Dry the sensor cable connector inside and out, and install finger tight.
---|---|---
Incorrect connection.| Check the sensor connection to the controller module.
There are bubbles dose to the cathode.| Refill with electrolyte and check there are no bubbles at the bottom of the sensor body.
The sensor has been violently shaken.| Check the fixation and stability of the sensor.
Electromagnetic interferences close to the sensor or controller cable.| Find a better place for the cable and check the EMC levels.
Temporary interference with other gases.| Mainly with H2S.
Flow rate too low (4 mUh minimum).| Increase sample flow.
Sludge from a heterogeneous sample has damaged the membrane.| Install a deflector or change the sensor location.
Pressure variation in the line.| Make sure the sensor is used at M
atmospheric pressure.
Lack of accuracy.| The permeability of the membrane has changed (dirt deposits).| Calibrate the analyzer and check if the concentration is back to normal.
Electrolyte pollution.| Check the screw-in parts (membrane, filling screw) and change the electrolyte and the membrane.
Electrolyte leaking.| Check the screw-in parts (membrane, filling screw) and change the electrolyte and the membrane.
Interferences, mainly with H2S.| If the level of H25 (or other pollutant) is stable, take its concentration into account to determine the dissolved 02 concentration.
Error during calibration or incorrect calibration.| Calibrate again to check the parameters. If the error persists check the calibration current (too high. too low or unstable) and the concentration in air. Refer to the problems described above.
There are bubbles dose to the cathode.| Refill with electrolyte and check there are no bubbles at the bottom of the sensor body.
Flow rate too low (4 mUh minimum).| Increase sample flow.
The sample temperature or pressure is out of specification.| Change the sensor location or modify the sample so that it is within specification.
Sludge or particles on the cathode.| ca
Clean the cathode with a soft and
absorbent tissue. Change the membrane.
The sensor current is null during measurement.| There is no electrolyte in the sensor (leakage).| Check the screw-in parts (membrane, filling screw) and change the electrolyte.
Sensor cable is disconnected or poorly connected.| Check cable connections on the module and the sensor connector in the controller.
The sensor current is negative.| Connection problem to the anode circuit (loose contact).| Check the connection to the controller module. If correct check the connections to the sensor cable connector.
---|---|---
There is a dark green deposit of silver bromide (AgBr) on the surface of the silver tube.| Polish the tube with a soft abrasive (N° 400 to 600).
The sample temperature is out of specification.| There may be a short-circuit on the temperature connection.| Check the connection to the controller module. If correct check the connections to the sensor cable connector.
The displayed reading is not numeric.| The measured value is < 0 ppb if negative signs are displayed.| Check the zero calibration.
The measured value is > 10,000 ppb| Change the display unit.
The standby function is enabled because the measured value is > 2 ppm.| Exit the standby function from the menu option.

9.2 Sensor diagnostic and test menu
The sensor diagnostic and test menu shows current and historical information about the instrument.
Refer to Table 2. To access the sensor diagnostic and test menu, push the MENU key and select Sensor Setup, [Select Sensor], DIAG/TEST.

Table 2 Sensor DIAG/TEST menu

module.
SENSOR INFORMATION| Shows the name and serial number that was entered by the user.
CAL DAYS| Shows the number of days since the last calibration.
CAL HISTORY| Shows a list of the calibrations and the details for each calibration.
RESET CAL HISTORY| Service use only. Resets the calibration history for the sensor. All previous calibration data is lost.
SENSOR SIGNALS| Shows the current reading in mV and the temperature.
MEMBRANE DAYS| Shows the number of days that the sensor has been in operation.
RESET MEMBRANE| Resets the number of days that the sensor has been in operation.

9.3 Warning list
A warning icon consists of an exclamation point within a triangle. Warning icons appear on the right of the main display below the measurement value. A warning does not affect the operation of menus, relays and outputs. To view warnings, push the menu key and select DIAGNOSTICS. Then select the device to view any problems associated with that device. The warning icon will no longer be displayed once the problem has been corrected or acknowledged.
A list of possible warnings is shown in Table 3.
Table 3 Warning list for dissolved oxygen sensors

in the process water is within the
operating limits of the sensor. Calibrate or replace the sensor.
CURRENT TOO LOW| The measured current < -0.5 mA| Calibrate or replace the sensor.
CAL OVERDUE| The Cal Reminder time has expired| Calibrate the sensor.
REPLACE SENSOR| The sensor has been in operation > 365 days| Replace the sensor cartridge and calibrate the sensor. If the
calibration result is pass, reset the membrane days in the DIAGTTEST menu.
NOT CALIBRATED| The sensor has not been calibrated| Calibrate the sensor.
CAL IN PROGRESS| A calibration was started but not completed| Return to calibration.

Section 10 Replacement parts and accessories

Refer to the replacement parts and accessories section of the controller documentation for controller parts and accessories.
Note: Product and article numbers may vary for some selling regions. Contact the appropriate distributor or refer to the company website for contact information.
Replacement parts and accessories

HACH COMPANY World Headquarters
P.O. Box 389, Loveland, CO 80539-0389 U.S.A.
Tel. 970-669-3050
800-227-4224 (U.S.A. only)
Fax 970-669-2932
orders@hach.com
www.hach.com ©Hach, 2013-2015, 2018, 2020, 2022.
All rights reserved. Printed in Europe.

References

• Geräte und Reagenzien für die Wasserqualitätsanalyse | Hach
• Hach | Hach

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