Hach HQ440d User Manual
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Hach HQ440d User Manual

Hach HQ440d User Manual

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DOC022.53.80116
HQ440d, HQ430d, HQ411d
04/2025, Edition 6
User Manual

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  • Page 1 DOC022.53.80116 HQ440d, HQ430d, HQ411d 04/2025, Edition 6 User Manual...

  • Page 3: Table Of Contents

    Table of Contents Section 1 Specifications ..................3 Section 2 General information ................3 2.1 Safety information ....................3 2.2 Use of hazard information ..................4 2.3 Precautionary labels ..................... 4 2.4 Intended use ....................... 4 2.5 Certification ......................4 2.6 Product overview ....................
  • Page 4 Table of Contents 7.5.2 Change calibration options ............... 27 7.5.3 Change check standard options ............... 28 Section 8 Data management ................28 8.1 About stored data ....................28 8.2 View stored data ....................29 8.2.1 View stored probe data ................29 8.3 Print stored data ....................

  • Page 5: Section 1 Specifications

    Section 1 Specifications Specifications are subject to change without notice. Specification Details Dimensions 17.48 x 8.59 x 23.5 cm (6.88 x 3.38 x 9.25 in.) Weight 750 g (1.65 lb) without batteries Meter enclosure IP54 with battery cover in place (resistant to intrusion of dust and water spray) Power requirements (internal) AA Alkaline or rechargeable Nickel Metal Hydride (NiMH) batteries (4);...

  • Page 6: Use Of Hazard Information

    If the equipment is used in a manner that is not specified by the manufacturer, the protection provided by the equipment may be impaired. Do not use or install this equipment in any manner other than that specified in this manual. 2.2 Use of hazard information D A N G E R Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.

  • Page 7: Product Overview

    Figure The HQd series meters are available in 3 models: • HQ411d—pH/mV/ORP (Redox) • HQ430d—Multi-parameter, single probe input • HQ440d—Multi-parameter, dual probe inputs Features common to all models: • Automatic probe and parameter recognition • Instrument guided calibration procedures • Calibration data stored in the probe •...
  • Page 8 Figure 1 Product overview 1 ON/OFF: turn on or turn off the meter 4 DC power connector 2 Probe connection port (HQ440d model) 5 USB connector type A (for USB storage device, printer and keyboard) 3 USB connector type B (for PC connections)

  • Page 9: Product Components

    1 HQ440d, HQ430d or HQ411d meter 3 AC/DC power supply with cable 2 AA batteries (pk/4) 4 USB cable (HQ440d, HQ430d models only) Section 3 Installation C A U T I O N Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the document.

  • Page 10: Install The Batteries

    Figure 3 AC power connection 3.2 Install the batteries W A R N I N G Explosion hazard. Incorrect battery installation can cause the release of explosive gases. Be sure that the batteries are of the same approved chemical type and are inserted in the correct orientation. Do not mix new and used batteries.

  • Page 11: Section 4 User Interface And Navigation

    Figure 4 Battery installation Section 4 User interface and navigation 4.1 User interface Figure 5 Keypad description 1 LEFT key: calibrates, cancels or exits the current 6 BACKLIGHT: turn off display illumination menu 2 RIGHT key: reads, selects, confirms or stores data 7 OPERATOR ID: associate data with an individual 3 DOWN key: scroll through menus, enter 8 SAMPLE ID: associate data with a sample location...
  • Page 12 4 Main measurement value 8 Stability or display lock indicator Dual-screen mode (HQ440d model only) When two probes are connected to the HQ440d meter, the display can show the reading from both probes simultaneously or show just one probe (Figure...

  • Page 13: Navigation

    Note: For probe calibration, change the screen mode to the single screen mode. To change the screen mode to single or dual screen, use the keys. In dual screen mode, key will select the probe on the left and the key will select the probe on the right.

  • Page 14: Change The Date And Time

    5.3 Change the date and time The date and time can be changed from the Date & Time menu. 1. Push the key and select Date & Time. 2. Update the time and date information: Option Description Format Select one of the formats below for the date and time. Use the keys to select from the format options.

  • Page 15: Section 6 Operation

    Section 6 Operation C A U T I O N 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. C A U T I O N Chemical exposure hazard.

  • Page 16: About Methods

    acceptance criteria can be changed. For step-by-step instructions, refer to the documents that are included with the probe. 6.4 About methods Methods are groups of default or user-defined settings relevant to specific applications. If the meter is set to the default method and the Modify Current Settings option is chosen, a prompt for a new name is shown after the changes are entered.

  • Page 17: Ph Probe Settings

    7.1 pH probe settings Change parameter-specific settings through the Full Access Options menu. The settings that can be changed are shown in Table 1. Password protection can prevent access to some settings. Table 1 Parameter-specific settings for pH probes Setting Options Measurement Options •...

  • Page 18: Change Calibration Options

    6. If prompted, enter a name for the new method settings. Other changes made to the settings of an existing method are automatically saved with the same method name. 7. Push EXIT until the meter goes back to the measurement mode. 7.1.2 Change calibration options 1.

  • Page 19: Change Check Standard Options

    Table 2 Custom buffer sets Buffer set values Option Description Std1 to Std5 1.09 pH—25 °C Pre-set temperature compensated buffer values. Note: It is necessary for selected standards to be different 1.68 pH—25 °C by a minimum of 2 pH units. For example, if 1.09 pH is selected for the first standard, the second standard must 4.01 pH—25 °C be different by at least 2 pH.

  • Page 20: Mtc Probe Settings

    5. Select Check Standard Reminder and update the settings: Option Description Reminder Repeat Sets the time interval for the check standard reminder—Off, 30 minutes, 2 h, 4 h, 8 h, 12 h or 24 h. Allow Defer Lets the postponement of check standard reminders—Yes or No. 6.

  • Page 21: Change Calibration Options

    4. Select Measurement Options and update the settings: Option Description Response Time Sets the response time— • Fast (2 mV/minute) • Medium (1 mV/minute) (default) • Slow (0.5 mV/minute) The response time affects the speed of the measurement by adjusting the stabilization criteria.

  • Page 22: Change Check Standard Options

    6. If prompted, enter a name for the new method settings. Additional changes made to the settings of an existing method are automatically saved with the same method name. 7. Push EXIT until the meter returns to the measurement mode. 7.2.3 Change check standard options 1.

  • Page 23: Change Measurement Options

    CDC401 conductivity cell. Table 5 Default methods Options Description Hach Conductivity Default method with conductivity measurement values. Conductivity is typically used for natural water samples. Hach TDS Default method with TDS measurement values. TDS is typically used to estimate the amount of total dissolved solids in the sample.

  • Page 24: Change Calibration Options

    5. Select Measurement Options and update the settings: Option Description Units— Sets the units for conductivity—Auto (default), μS/cm or mS/cm. Conductivity When Auto is selected, the units will automatically change to mS/cm when the sample conductivity is high and μS/cm when the conductivity is low. Select μS/cm or mS/cm to always show the same units.

  • Page 25: Ldo Or Lbod Probe Settings

    4. Select Calibration Options and update the settings: Option Description Standard Sets the conductivity calibration standard— • 1 D KCl, 111.3 mS/cm, 25 °C • 0.1 D KCl, 12.85 mS/cm, 25 °C • 0.01 D KCl, 1408 μS/cm, 25 °C •...

  • Page 26: Change Measurement Options

    Table 6 Parameter-specific settings (continued) Setting Options Description Units mg/L Primary unit of measurement Calibration Options Calibration • User 100% • User 100% with 0 • User mg/L • User mg/L with 0 • Factory (factory calibration option, applicable only to LDO probes) Calibration Reminder Reminder Repeat—Off, 8 h, 12 h, 1 d, 2 d, 5 d or 7 d Expires—Immediately, Reminder + 30 m, Reminder + 1 h,...

  • Page 27: Change Calibration Options

    Option Description Salinity Value Sets the salinity value—‰ (default: 35.0 ‰). When salinity correction is set to manual, sets the salinity value of the sample. Salinity can be measured with a conductivity probe. Pressure Units Sets the pressure units—hPa, mBar, inHg or mmHg. The meter shows the atmospheric pressure at the current elevation, which is necessary for accurate measurements.

  • Page 28: Ise Probe Settings

    7.5 ISE probe settings Parameter-specific settings can be changed through the Full Access Options menu. Details about menu navigation, available options and how to change them are given in the screens, tables and procedures throughout this section. The settings that can be changed are shown in Table Table 7 Parameter-specific settings Setting...

  • Page 29: Change Calibration Options

    Option Description Stability Criteria When Auto Stabilization is off, sets the stability criteria—0.1 to 9.9 mV/min. • Lower stability criteria will require longer stabilization times, but the measurement will be more precise. • Higher stability criteria will require shorter stabilization times, but the measurements may be less precise.

  • Page 30: Change Check Standard Options

    5. Select Calibration Reminder and update the settings: Option Description Reminder Meter will make an audible sound when a calibration is due and repeat the sound at the Repeat selected interval—Off (default), 2 h, 4 h, 8 h, 2 d, 5 d or 7 d. Expires Calibration expires after the selected time—Immediately, Reminder + 30 min (default), Reminder + 1 h, Reminder + 2 h or Continue Reading.

  • Page 31: View Stored Data

    • Calibrations: stored only when Store is selected at the end of a calibration. Calibration data is also stored in the IntelliCAL (R) probe. • Check standard measurements: stored automatically each time a check standard is measured (in the Press to Read or Interval Mode). When the data log becomes full (500 data points), the oldest data point is deleted when a new data point is added.

  • Page 32: Change The Report Options

    4. Push the key. 5. Select Send Data Log. Wait for the display to show “Transfer Complete” and wait for the printer to stop printing. Disconnect the printer. Figure 10 Connection to the printer 1 USB cable 3 AC-DC power supply for printer (optional) 2 Printer, FCC Part 15B, Class B compliant 8.3.1 Change the report options Printed reports for sample data can contain 1, 2 or 3 lines of information.

  • Page 33: Open Data Files On A Pc

    Model number of probe, for example pHC101, CDC401, LDO101 Probe SN Probe serial number If two probes are connected to the HQ440d meter, the serial number shows “<“ or “>” to identify the port (left or right) the probe was connected to during the reading.
  • Page 34 Table 9 Spreadsheet column descriptions (continued) Column header name Data description and example values Supp Units 1 Units for first supplemental reading, if applicable. Supp Reading 2 Second supplemental reading (example: “mV” for pH), if applicable Supp Units 2 Units for second supplemental reading, if applicable Supp Reading 3 Third supplemental reading, if applicable Supp Units 3...

  • Page 35: Remove Column Headers

    Table 9 Spreadsheet column descriptions (continued) Column header name Data description and example values Cal Std 2–7 Primary Value Measured values of additional calibration standards, if used Cal Std 2–7 Primary Units Associated units for additional calibration measurements, if used Cal Std 2–7 Supp Value Value of supplemental measurement, for example temperature Cal Std Supp Units...

  • Page 36: Section 9 Advanced Operation

    Section 9 Advanced operation 9.1 Security options The Security Options menu is used to protect the meter setup and method settings from unwanted changes. This menu is available in the Full Access Options menu. The Setup Measurement Mode, Date and Time, Temperature Units, Language, Probe settings, Delete data log and Security Options screens are disabled in the Operator Access Options menu.

  • Page 37: Restricted Operator Access Options Menu

    Table 10 Full Access Options (continued) Option Description Security options ON or OFF Set password Display options Contrast Auto shutoff Backlight Mode Sounds Key press Stability alert Calibration reminder Date and time Format Date Time Temperature units Set temperature units Language Select language 9.1.3 Restricted operator access options menu...

  • Page 38: Set The Display Options

    9.2 Set the display options Use Display Options to change the display contrast, battery saving auto-shutoff options, the backlight option or the detailed or big reading screen mode. 1. Push the key and select Display Options. 2. Select which display option to change. Option Description Contrast...

  • Page 39: Change The Temperature Units

    9.4 Change the temperature units To select degrees Celsius or Fahrenheit: 1. Push the key and select Temperature Units. 2. Select the Celsius or Fahrenheit option. 9.5 Set the measurement mode One of three modes can be used to specify when measurements are taken and how the data is stored.

  • Page 40: Prevent Data Log Overflow In Interval Mode

    9.5.3 Prevent data log overflow in interval mode When measurements are taken at specified intervals (Table 12), each result is automatically stored. The meter can store up to 500 data records. When 500 records have been stored, data is replaced on a first-in, first-out basis.

  • Page 41: Download Software Updates

    The update process starts. The display will show “Updating meter to <firmware version>”. After an interval, the display changes to “Updating files, please wait...” In addition, the display will show a rotating flask and emit a periodic audio signal during the update process. Note: A large capacity USB storage device increases the time required for completion of the update process, even if most of the device memory is empty.

  • Page 42: About Meter Control

    configuration on page 40. For additional information and the command set contact Technical Support. 9.9.1 About meter control The virtual serial connection can be used to control meter functions from a PC. For example, the functions include starting a measurement cycle, turning off the meter and sending the entire measurement (including calibrations) to the PC or other information management system.

  • Page 43: Clean The Meter

    10.1 Clean the meter The meter is designed to be maintenance-free and does not require regular cleaning for normal operation. Exterior surfaces of the meter may be cleaned as necessary. 1. Wipe the surface of the meter with a damp cloth. 2.

  • Page 44: Section 11 Troubleshooting

    Section 11 Troubleshooting Refer to the following table for common problem messages or symptoms, possible causes and corrective actions. Error/Warning Description Solution Connect a Probe Probe disconnected or Tighten the locking nut on the probe connector. connected improperly Disconnect the probe and then connect the probe again Software not updated to To download the most current version of the...

  • Page 45: Section 12 Replacement Parts And Accessories

    Error/Warning Description Solution Meter will not power on or Batteries are not installed Examine battery orientation to make sure the powers on intermittently correctly batteries follow the polarity markings. Test again. Clean the battery terminals, then install new batteries. Connect AC power adapter and test again. Software not updated to To download the most current version of the most current version...

  • Page 46: Appendix A Examples Of Printed Reports

    Appendix A Examples of printed reports Printed reports contain a report header and all stored data for samples, check standards and calibrations. Report header The first line of a report shows the report header (Figure 12). Figure 12 Report header 1 Meter serial number 3 Date and time, 24 h (YYMMDDhhmm) 2 Report label...

  • Page 47: Calibration Reports

    Figure 14 Advanced report for sample data—2 lines 1 Probe model 4 Additional units: shows all additional units associated with the reading. 2 Error message (if applicable) 5 Probe settings: shows the highest-priority setting associated with the reading 3 Probe serial number (a “<“ or “>” on the HQ40d meter indicates the probe position) Figure 15 Total report for sample data—3 lines 1 Method name for probe settings...
  • Page 48 Figure 17 Calibration report 1 Report type (CL = calibration, IC = current 7 Probe serial number (a “<“ or “>” on the HQ440d calibration) meter indicates the probe position) 2 Parameter (pH, LDO, etc.) 8 Calibration slope/ratio/constant 3 Method name for probe settings 9 Offset—contents vary depending on type of...

  • Page 50: All Rights Reserved

    Tel. +49 (0) 2 11 52 88-320 SWITZERLAND Fax (970) 669-2932 Fax +49 (0) 2 11 52 88-210 Tel. +41 22 594 6400 orders@hach.com info-de@hach.com Fax +41 22 594 6499 www.hach.com www.de.hach.com © Hach Company/Hach Lange GmbH, 2010, 2013, 2016, 2017, 2020, 2025. All rights reserved.

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