jenway 7300 User Manual (English)

Questions and Answers:

P
Patricia MaxwellAug 17, 2025
How to achieve zero absorbance when calibrating jenway 7300?
- J
  James WangAug 17, 2025
  To address the issue of not achieving zero absorbance or 100% transmittance during calibration with your Jenway Measuring Instruments, first, verify that there is no sample present in the sample chamber. Next, ensure the instrument lid is properly closed before and during the calibration process. Finally, check if the lamp is functioning correctly; if it has failed, replace the lamp (7300) or the lamp module (7305).
H
hesstinaAug 19, 2025
What to do if Jenway Measuring Instruments unable to achieve a reading when measuring a sample?
- C
  Christina ContrerasAug 19, 2025
  If you're unable to get a reading when measuring a sample using your Jenway Measuring Instruments, start by ensuring that you're using the correct cuvette, one that doesn't absorb the light. Also, check that the sample isn't too dense, preventing light from transmitting through it. Finally, verify that the lamp is working properly.
T
Tommy BaileyAug 22, 2025
Why does my jenway 7300 show 'Err 5 - Light Saturation Not Found'?
- A
  Adrian SchneiderAug 22, 2025
  If your Jenway Measuring Instruments display an 'Err 5 - Light Saturation Not Found' error, it could be due to a lamp failure, a deteriorating lamp signal, or a sample/cuvette being present in the sample holder. First, ensure the sample holder is empty. Then, restart the unit. If the problem persists, contact a service technician.
P
pwilcoxAug 25, 2025
What to do if I get Err 3 Dark Calibration Error on my Jenway Measuring Instruments?
- M
  Molly ChristensenAug 26, 2025
  If you encounter an 'Err 3 - Dark Calibration Error' on your Jenway Measuring Instruments, it might be due to the sample chamber lid being open during the calibration sequence or a fault on the detector PCB. Ensure the sample chamber is completely closed. Then, press the key adjacent to the back icon to retry the dark calibration.
S
Samuel BallAug 28, 2025
What causes Err 9 Over Temperature on Jenway Measuring Instruments?
- D
  Dawn StewartAug 28, 2025
  An 'Err 9 - Over Temperature' error on your Jenway Measuring Instruments can be caused by a failure of the fan or a thermal switch that is not connected. Restart the unit. If the problem continues, contact a service technician.
J
Jacqueline VegaAug 31, 2025
Why does the measure sample icon disappear after changing the wavelength on Jenway Measuring Instruments?
- E
  Emma SmithAug 31, 2025
  If the measure sample icon disappears after changing the wavelength on your Jenway Measuring Instruments, a calibration must be performed at the new wavelength. Once the calibration is complete, the measure sample icon will reappear.
N
nowensSep 2, 2025
What does Err 2 Operating Parameters Failure mean on Jenway Measuring Instruments?
- M
  Miss Kelly CrossSep 2, 2025
  An 'Err 2 - Operating Parameters Failure' on your Jenway Measuring Instruments can occur if the methods were reset by pressing the top left button during the power-on tests or if the parameters have been corrupted. Press the key adjacent to the tick icon to action.
R
Richard MillerSep 5, 2025
How to fix Err 8 Unable to find Vane on Turret in jenway 7300?
- F
  feverettSep 5, 2025
  If your Jenway Measuring Instruments display 'Err 8 - Unable to find Vane on Turret', it's likely because the turret carousel has been removed and not replaced properly. Check if the turret is in the sample chamber and inserted correctly. Press the key adjacent to the back icon to try rechecking.
M
Miranda GarciaSep 8, 2025
Why is my jenway 7300 Measuring Instruments unable to print results using the internal printer?
- D
  Debbie LeeSep 8, 2025
  If you're unable to print results using the internal printer of your Jenway Measuring Instruments, first ensure that the internal printer is selected in the autolog menu. Then, check that there is paper in the unit and that a result is displayed on the screen.
E
Evan BryantSep 12, 2025
What does Err 1 System Parameters Failure mean on jenway 7300?
- G
  gracejamesSep 12, 2025
  If your Jenway Measuring Instruments show 'Err 1 - System Parameters Failure', it indicates a FRAM chip failure. Restart the unit; if the problem persists, contact a service technician.

jenway 7300 Specifications

General

Brand	jenway
Model	7300
Category	Measuring Instruments
Language	English

Summary

Section 1: Introduction

1.1 Instrument Description

Provides a general overview of the 7300 and 7305 spectrophotometers and their features.

1.2 Instrument Specification

Details the technical specifications for both the 7300 and 7305 models, including wavelength range and photometrics.

Section 2: Installation

2.1 Unpacking

Lists the items included in the spectrophotometer packaging for both models.

2.2 Installation

Instructions for placing the unit, connecting the power supply, and initial power-up.

2.3 Display

Describes the dot matrix display and shows the main menu screen layout.

2.4 Controls

Explains the keypad layout and soft key functions for navigation and operation.

2.5 Rear Panel

Identifies and describes the ports and switches located on the rear of the instrument.

2.6 Front Panel

Identifies the components on the front of the instrument, including printer, keypad, lid, and display.

Section 3: Theory and Practice of Spectroscopy Measurements

3.1 Theory of Spectroscopy Measurement

Explains UV-visible spectroscopy and the Beer-Lambert law.

3.2 Spectroscopy Measurement

Details the main components of a spectrophotometer and illustrates the optical path.

3.3 Good Practice Guidelines

Provides recommendations for optimal performance, sample handling, and cuvette selection.

Section 4: Instrument Setup

4.1 Navigating and Screen Setup

Explains how to navigate the main menu and access measurement modes and settings.

4.2 Time and Date

Instructions for setting and formatting the instrument's current time and date.

4.3 Instrument Settings Menu

Accessing settings for screen contrast and lamp save functions.

4.4 Screen Contrast

Adjusting the brightness of the instrument's display screen for better visibility.

4.5 Lamp Save

Configuring the automatic shut-off timer for the lamp to conserve energy.

Section 5: Photometrics

5.1 Mode Specific Parameters

Overview of parameters adjustable within the photometrics measurement mode.

5.2 Method Set Up

Basic setup for photometrics, focusing on wavelength and display format selection.

5.2.1 Selecting a Wavelength

Instructions on how to adjust the measurement wavelength using the instrument's controls.

5.3 Calibration

Step-by-step guide for calibrating the instrument using a blank solution before measurement.

5.4 Sample Measurement

Procedure for measuring a sample after the instrument has been calibrated.

Section 6: Concentration

6.1 Mode Specific Parameters

Overview of parameters adjustable within the concentration measurement mode.

6.2 Method Setup

Initial setup for concentration measurements, including wavelength selection.

6.2.1 Selecting a Wavelength

Instructions on how to select the measurement wavelength for concentration analysis.

6.2.2 Settings

Configuring wavelength, units, resolution, standard, or factor for concentration measurements.

6.2.2.1 Selecting Concentration Units

Guide to choosing the appropriate unit for displaying concentration results.

6.2.2.2 Changing the Resolution

Adjusting the display resolution for concentration values (e.g., 0.1, 0.01).

6.2.2.3 Using a Standard

Entering a standard value for calibration when the concentration factor is unknown.

6.2.2.4 Using a Factor

Entering a known concentration factor to calculate results directly.

6.3 Calibration

Procedures for zero calibration and calibration using a standard or factor.

6.3.1 Calibrating to a Standard

Step-by-step guide to performing calibration using a standard solution.

6.3.2 Calibrating to a Factor

Procedure for calibrating the instrument using a known factor.

6.4 Sample Measurement

General process for measuring a sample after calibration in concentration mode.

6.4.1 Measuring a Sample After Calibrating to a Standard

How to measure a sample following calibration with a standard.

6.4.2 Measuring a Sample After Calibrating to a Factor

How to measure a sample following calibration with a factor.

6.5 Post Measurement Options

Options available after measurement, including changing units or calibration values.

6.5.1 Changing Concentration Units

Adjusting the displayed concentration unit post-measurement.

6.5.2 Changing the Concentration Factor

Notes limitations on changing concentration factor after calibration.

6.5.3 Changing the Calibration Standard Value

Notes limitations on changing calibration standard value after calibration.

Section 7: Printing and Autologging

7.1 Printing

Covers printing results and configuring print settings like destination and language.

7.1.1 Print Setup

Configuring print destination (internal/external printer) and language.

7.1.2 Printing Results

How to initiate printing of the currently displayed results.

7.2 Autologging

Functionality for automatically performing and storing repeat measurements.

7.2.1 Setting the Number of Sample Repetitions

Configuring the number of repeat measurements for autologging.

7.2.2 Selecting Result's Destination

Choosing the destination for autologged results (printer or PC).

7.3 Connecting to a PC

Steps for installing and connecting the instrument to a PC for data transfer.

Section 8: Accessories and Spare Parts

8.1 Optional Accessories

Lists available optional accessories with their part codes.

8.2 Connecting the Accessories

General guidance on fitting passive and active accessories to the instrument.

8.2.1 Internal Printer

Step-by-step instructions for connecting the optional internal printer.

8.2.2 Passive Accessories

Instructions for installing passive accessories into the sample chamber.

8.2.2.1 Water-heated Cuvette Holder

Specific installation steps for the water-heated cuvette holder accessory.

8.2.3 Active Accessories

General guidance for installing active accessories into the instrument.

8.2.3.1 Automatic 8 Cell Turret

Installation procedure for the automatic 8-cell turret accessory.

8.2.3.2 Peltier

Installation procedure for the Peltier accessory for temperature control.

8.2.3.3 Sipper Pump

Installation procedure for the sipper pump accessory.

8.2.3.4 Combined Sipper Peltier Pump

Details on installing and using the combined sipper Peltier pump.

8.3 Using the Accessories

General instructions on operating the installed accessories.

8.3.1 Automatic 8 Cell Turret

How to perform measurements using the automatic 8-cell turret.

8.3.2 Peltier

How to adjust and use the Peltier accessory for temperature control.

8.3.3 Sipper Pump

Operating the sipper pump in manual or timed modes.

8.3.3.1 Manual Sipper Pump Settings

Detailed steps for operating the sipper pump in manual mode.

8.3.3.2 Timed Sipper Pump Settings

Detailed steps for operating the sipper pump in timed mode.

8.3.4 Combined Sipper Peltier Pump

Operation of the combined sipper Peltier pump.

8.4 Spares

Lists available spare parts with their part codes.

Section 9: Maintenance and Service

9.1 Routine Maintenance

General cleaning, dust prevention, and care for the instrument.

9.2 Lamp Replacement

Procedures for replacing the instrument's light source (tungsten or xenon).

9.2.1 Tungsten Halogen Lamp Replacement

Specific steps for replacing the tungsten halogen lamp on the 7300 model.

9.2.2 Xenon Lamp Module Replacement

Information on replacing the xenon lamp module on the 7305 model.

9.3 Service

Contact details and procedures for obtaining technical support and repair services.

Section 10: Troubleshooting

10.1 Error Codes

Lists common error codes, their meanings, likely causes, and recommended solutions.

10.2 Troubleshooting Guide

Addresses common operational problems and their solutions.

10.3 Technical Support

Contact information for assistance with applications and product usage.

Section 11: Declaration of Conformity

Section 12: Glossary of Icons

Related product manuals

jenway 7300 User Manual

Table of Contents