What to do if Knauer Measuring Instruments show 'OUT OF RANGE'?
If your Knauer Measuring Instruments display 'OUT OF RANGE', it is usually due to a malfunction of the thermistor. Contact the Technical Support.
Why Knauer Measuring Instruments doesn't freeze?
If your Knauer Measuring Instruments do not freeze, it means that no sample crystallization took place after the activation of the stirring wire. See “Non-freezing of the sample” on page 28.
What to do if the sample tube is scratched or contaminated in Knauer Measuring Instruments?
Premature freezing of the sample in Knauer Measuring Instruments can occur if the sample tube or thermistor is scratched or contaminated, acting as crystallization nuclei. Use a new sample tube and carefully clean the thermistor. Only use sample tubes obtained from or recommended by KNAUER. Degas the sample solution by ultrasound if it's saturated with air or gases. Ensure the device's air inlets and outlets are unobstructed if the cooling rate is insufficient. Use the exact required sample volume (50 – 150 ?l) if too much sample solution is in the sample tube.
What to do if there is too little sample solution in the sample tube of Knauer Measuring Instruments?
To resolve issues with too little sample solution in the sample tube of Knauer Measuring Instruments, use the exact required sample volume: 50 – 150 ?l. This prevents a very cold zone from developing above the solution on the sample tube wall, which causes self-freezing of the sample.
What to do if Knauer Measuring Instruments shows OUT OF RANGE error?
Contact the Technical Support, as the 'OUT OF RANGE' error usually indicates a malfunction of the thermistor in Knauer Measuring Instruments.
Provides an overview of the K-7400S Semi-Micro Osmometer and its capabilities.
Details the applications and limitations of the freezing point osmometer.
Lists the application areas where the osmometer can be used.
Describes the front and rear views of the device, including the keypad.
Explains hazard symbols (DANGER, WARNING, CAUTION, NOTICE) and their meanings.
Provides instructions for decontaminating the device, especially before repair or disposal.
Explanation of hazard symbols like electric shock, ESD, and biohazard.
Meaning of the CE conformity mark indicating European directive compliance.
Details environmental and spatial requirements for device placement.
Steps for safely unpacking the device and checking for transport damage.
Explains how to connect the device to the power supply and safety precautions.
Lists conditions that must be met before starting the device.
Outlines the step-by-step process for starting the device.
How to connect the measuring head to the device.
Positioning the measuring head when not in use.
The underlying science and steps of a measurement.
Turning the device on and performing the self-test.
Explains how to navigate through the device's menu system.
Outlines the steps required before performing a measurement.
Details the specific steps for preparing a sample for measurement.
Procedures for calibrating the device for accurate measurements.
Explains the process and necessity of initial pre-calibration.
Details the procedure for calibrating the device for accurate results.
How to measure sample solutions using the device.
Step-by-step guide to performing a measurement on sample solutions.
Provides key tips and considerations for optimal device operation.
Explains the free installation qualification service offered by KNAUER.
Describes the operation qualification service for device functionality checks.
Advises on regular testing intervals to ensure device performance.
Details who can perform the functionality tests and under what conditions.
Lists and explains common error messages displayed by the device.
Addresses issues where the sample freezes spontaneously without initiation.
Troubleshoots problems where the sample fails to freeze during measurement.
Guides through the installation process of the EuroOsmo 7400 software.
Explains connecting the device to the computer for software use.
Introduces the primary interface of the EuroOsmo 7400 software.
Explains the meaning and function of various icons within the software.
Details how to configure settings for measurement and calibration runs.
Explains how to manage and use the sample list in the software.
Describes the area for editing general settings and reports in the software.
Setting measurement parameters like freezing level and cooling limit.
Explains how to customize and design reports and graphs in the software.
Guides on how to search for measurement data within the software.
Provides instructions on how to clean critical components of the measuring head.
Details how to perform checks on the device's cooling system.
Explains how to use a reference thermometer for checking cooling capacity.
Provides guidance on preparing the device for transport and service.
Advises on proper storage conditions for the device.
Outlines the procedure for safely disconnecting the device from power.
Lists the key technical specifications of the osmometer.
Details the communication ports and control methods for the device.
Covers power supply, dimensions, weight, and ambient conditions.
Provides information on where to find spare parts and accessories.
Explains how to handle and report transport damage.
Outlines the terms and conditions of the device warranty.
Explains the purpose and implications of the warranty seal.
Mentions the availability of the Declaration of Conformity document.
Provides guidance on how to properly dispose of old devices.
Refers to the terms and conditions of the software license agreement.
General| Type | HPLC Pump |
|---|---|
| Flow Rate | 0.001 to 10 mL/min |
| Number of Channels | 1 |
| Drive Type | Stepper Motor |
| Flow Accuracy | ± 1% |
| Display | LCD |
| Pressure Range | 0 to 40 MPa (0 to 400 bar) |
| Materials in Contact with Solvent | Stainless steel, PTFE, sapphire |
| Control | PC via RS-232 or analog |
| Interfaces | USB, RS-232 |
| Power Requirements | 100-240 V, 50/60 Hz |
To Next Page
