What to do if absorbance is greater than 3.5 on Hach Lange DR 3900?
If the absorbance measured by your Hach Measuring Instruments exceeds 3.5, it means the measured absorbance is too high. To resolve this, dilute the sample and measure it again.
What to do if Hach Lange DR 3900 Measuring Instruments says 'File for instrument update missing'?
If your Hach Measuring Instruments displays that the file for the instrument update is missing, it indicates an error during the update process. Check the USB memory stick.
Why am I getting an 'Error in FTP connection' on my Hach Lange DR 3900?
If there is an error in the FTP connection on your Hach Measuring Instruments, it indicates an FTP error. Make sure that the instrument is connected to the network.
Why is Hach Lange DR 3900 recommending a Full System Check?
If it’s recommended to execute a Full System Check on your Hach Measuring Instruments, it means the check of the air values failed. Switch the instrument off and then back on again. If the system check is not successful, contact the manufacturer or his representative.
Why is the network switched off on my Hach Lange DR 3900 Measuring Instruments?
If the network is switched off on your Hach Measuring Instruments, it means the network setup is off when accessing the Instruments homepage via the sidebar. Activate the online connection.
Why does Hach Lange DR 3900 Measuring Instruments say 'Attention! Please insert the light shield'?
If your Hach Measuring Instruments prompts you to insert the light shield, it is because readings with barcode cuvettes generally require the light shield. Insert the light shield and press OK.
What to do if Hach Lange DR 3900 Measuring Instruments says 'Entry invalid!'?
If your Hach Measuring Instruments displays 'Entry invalid!', it means the password entered is incorrect. If you've forgotten your password, contact the manufacturer or their representative.
What does 'Fault Barcode check number? Please update program data!' mean on Hach Measuring Instruments?
If your Hach Measuring Instruments displays 'Fault Barcode check number? Please update program data!', it indicates a deviation to the stored data. Update the program data.
What to do if Hach Lange DR 3900 Measuring Instruments says 'File for instrument update is faulty'?
If your Hach Measuring Instruments displays that the file for the instrument update is faulty, it indicates an error during update. Save the update file again and repeat the procedure.
General| Type | Spectrophotometer |
|---|---|
| Wavelength Resolution | 0.1 nm |
| Spectral Bandwidth | 5 nm |
| Display | 7-inch color touchscreen |
| Operating Temperature | 5 to 40 °C |
| Wavelength Range | 190 - 1100 nm |
| Photometric Accuracy | ± 0.005 Abs |
| Stray Light | < 0.1 % |
| Interfaces | USB, Ethernet |
| Connectivity | Ethernet |
| Power Supply | 100-240 V AC |
| Measurement Modes | Absorbance, Transmittance, Concentration |
Details the instrument's performance metrics like display mode, wavelength, accuracy, etc.
Covers the instrument's dimensions, mass, and operating environment requirements.
Includes details on power supply and interface specifications for the instrument.
Provides crucial safety instructions for operating the spectrophotometer safely.
Addresses potential hazards and safe handling procedures for chemicals and biological samples.
Introduces the DR 3900 spectrophotometer and its key features and programs.
Lists the items included with the DR 3900 spectrophotometer upon delivery.
Outlines the recommended conditions for instrument setup and operation.
Illustrates the physical layout and key components of the instrument's front and back.
Details the steps required to connect the instrument to a power source.
Describes the instrument's connectivity options, including USB and Ethernet ports.
Explains the different cell compartments and the types of adapters and cells they accommodate.
Provides instructions on how to correctly install the cell adapter into the instrument.
Explains the purpose and usage of the light shield for specific measurement scenarios.
Illustrates the optical path of the light beam within the DR 3900 spectrophotometer.
Guides the user through powering on the instrument and its initial startup sequence.
Explains how to select and change the instrument's operating language.
Describes the automatic diagnostic test performed each time the instrument is powered on.
Details how to put the instrument into and wake it from sleep mode to save power.
Provides instructions on how to properly shut down the instrument.
Provides a general introduction to the instrument's standard programs and operating modes.
Offers guidance on interacting with the instrument's touch screen interface effectively.
Explains how to use the on-screen keypad for data entry and programming.
Describes the options available in the instrument's main menu and their functions.
Covers the various settings and configurations for the instrument.
Details how to set up and manage operator identification for tracking measurements.
Explains the functionality and setup of the optional RFID tag for operator identification.
Guides on entering and managing sample identification tags for sample tracking.
Describes using a scanner to input sample IDs using the first method.
Details the process for inputting sample IDs via scanner using the second method.
Explains the use of the optional RFID kit for sample and operator identification.
Covers the configuration of security levels and password protection for instrument access.
Details how to assign specific security levels to different operator IDs.
Provides instructions on how to remove or deactivate existing passwords.
Guides on setting and formatting the instrument's date and time.
Explains how to configure various audio feedback options for the instrument.
Describes how to connect the instrument to PCs and printers for data transfer.
Details the configuration options for connecting and setting up a printer.
Explains how to print stored measurement data from the instrument.
Covers the setup for continuous printing of measurement data.
Guides on configuring network connections for data transfer and instrument management.
Details how to set up the instrument's IP address for network communication.
Explains how to configure network server access and data folder destinations.
Covers instrument power saving features like sleep timers and auto power-off.
Outlines procedures for managing measurement data stored in the instrument.
Explains how the instrument stores measurement data automatically or manually.
Guides on retrieving measurement data previously stored in the instrument's data log.
Details how to transfer data from the instrument's data log to external storage or a printer.
Explains how to remove measurement data from the instrument's data log.
Describes how to generate and interpret control charts for Analytical Quality Assurance data.
Covers data management operations for wavelength scans and time course measurements.
Explains the process of saving scan and time course data within the instrument.
Guides on retrieving previously saved wavelength scan and time course data.
Details methods for transferring scan and time course data to external devices or PCs.
Explains how to remove scan and time course data from the instrument.
Introduces the instrument's data analysis capabilities and requirements.
Describes how to generate and interpret trend plots for measurement data over time.
Explains how to perform ratio analysis on measured parameters, often using accessory kits.
Details the instrument's automatic detection of potential interferences in measurements.
Covers how to access and run pre-programmed tests and methods.
Guides on selecting tests and entering necessary user-specific data.
Lists and describes the various options available for configuring stored programs.
Explains how to input a dilution factor to adjust measurement results.
Details the procedure for adjusting calibration curves using a known standard solution.
Guides on selecting the appropriate chemical form for evaluating test results.
Explains how to set a new default chemical form for test evaluations.
Details the process of measuring a reagent blank to account for its value in calculations.
Explains how to perform multiple measurements on a single sample.
Covers the general process for analyzing samples using stored programs.
Provides guidance on updating and editing existing test methods.
Explains how to manually update test data based on packaging information.
Guides on creating and programming entirely new test methods into the instrument.
Explains how to add frequently used programs to the Favorites list for quick access.
Introduces the functionality of using barcodes for automated test selection and execution.
Details the steps for running a test using barcode identification.
Guides on choosing the correct chemical representation for displaying test results.
Covers settings related to specific tests and individual samples.
Explains the procedure for taking a sample blank reading to correct for sample matrix effects.
Details how to update or modify barcode test data, including test packaging.
Guides on manually updating the parameters of a barcode test.
Explains how to manually review and correct test data entries.
Details how to update instrument software and data using an internet connection.
Guides on programming new tests, possibly for barcode methods.
Introduces the functionality for creating and managing custom user-defined analysis programs.
Guides on the process of creating a new user-defined analysis method.
Explains how to assign unique numbers and names to user-created programs.
Covers the selection of program types like Single Wavelength, Multi Wavelength, or Free Programming.
Details the parameters to configure for single wavelength measurements.
Covers the configuration parameters for multi-wavelength measurements.
Explains how to calibrate methods using standard solutions or formulas.
Guides on saving the configured user program into the instrument's memory.
Covers adding advanced parameters like measuring range limits and timer functions.
Introduces the advanced option for creating custom measurement sequences.
Explains how to define the steps and readings for a measurement process.
Guides on adding individual steps to a measurement sequence.
Details how to input mathematical formulas for calculating results and calibration curves.
Explains how to input variables like factors, wavelengths, and conversion constants.
Guides on selecting and running previously created user programs.
Covers managing user programs within the Favorites list for quick access.
Explains how to recall and delete programs from the Favorites list.
Introduces the standard addition method for checking accuracy and identifying interferences.
Details the procedures for performing a standard addition analysis.
Guides on taking measurements using the single wavelength mode.
Covers the configuration options for single wavelength measurements.
Introduces the multi-wavelength mode for taking measurements at multiple wavelengths.
Explains how to configure settings for multi-wavelength readings.
Details the final steps for completing a measurement in multi-wavelength mode.
Introduces the mode for recording absorbance and transmission spectra across a wavelength range.
Guides on configuring parameters for performing a wavelength scan.
Details the procedure for executing a wavelength scan measurement.
Explains how to navigate and interpret the results of a wavelength scan.
Covers using reference scans for comparison with measured spectra.
Introduces the time course mode for monitoring changes over time.
Details the settings required to configure a time course measurement.
Guides on performing the actual time course scan measurement.
Explains how to analyze the data collected during a time course measurement.
Provides instructions on how to clean the instrument, display, and cells.
Details specific cleaning procedures for the main unit and cell compartments.
Explains how to clean the instrument's display screen safely.
Outlines the process for cleaning cuvettes and sample cells after use.
Provides step-by-step instructions for safely replacing the instrument's lamp.
Guides on how to replace the entire cell compartment if severely soiled.
Lists various accessories available for purchase to enhance instrument functionality.
Lists essential replacement parts for the instrument, such as lamps and power supplies.
Provides guided instructions for running pre-programmed tests available in the instrument.
Guides users through executing tests using barcode identification.
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