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Thermo Spectronic GENESYS 10 UV - User Manual

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Table of Contents

Questions and Answers

  • E
    Eric HillAug 5, 2025
    How to troubleshoot a Thermo Measuring Instruments unit that has no power?
    • M
      Melissa DelacruzAug 5, 2025
      If your Thermo Measuring Instruments unit isn't receiving power, try the following: * Ensure the power cord is securely plugged into both the rear of the instrument and the outlet. * Test a different power outlet. * Check and replace the fuse(s) if necessary, making sure they are correctly installed. If the new fuse(s) blow again, fix the underlying problem before trying another fuse. * Consider replacing the power supply or the cable from the power supply to J5 on the Main board, ensuring it's securely connected.
  • V
    Victoria DavidsonAug 10, 2025
    What to do if Thermo Measuring Instruments filter wheel turns, but shows 'Cannot calibrate the filter wheel'?
    • V
      Vanessa GreenAug 10, 2025
      If the filter wheel on your Thermo Measuring Instruments turns but displays a “Cannot calibrate the filter wheel” message, consider these steps: * Clean the filter wheel, tighten the set screw on the gear, or replace the filter wheel if it's binding or slipping. * Ensure the sample compartment door is closed during initialization. * Remove any obstructions blocking the light beam. * Replace the lamp if it's blown, and ensure the lamp cable from the lamp to J12 on the Main board is securely connected. * Align the optics if the optical path is not aligned. * Ensure the detector is securely connected. * Check cable connections, the power supply, and consider replacing the detector or main board if the instrument isn't recognizing changes in energy.
  • D
    Denise BurkeAug 14, 2025
    What to do if Thermo Measuring Instruments display does not light up?
    • T
      Terry GibsonAug 14, 2025
      If the display on your Thermo Measuring Instruments doesn't light up after powering on, try these solutions: * Ensure the cable from the display board to connector J9 on the Main board is securely connected; replace the cable if necessary. * Make sure the display cables are correctly installed. * If the issue persists, replace the display or the Main board.
  • W
    wellskennethAug 17, 2025
    What to do if Thermo Measuring Instruments does not get past 'Finding zero order' message?
    • C
      Courtney LewisAug 17, 2025
      If your Thermo Measuring Instruments gets stuck on the “Finding zero order…” message and displays “Instrument not calibrated”, try the following: * Remove any obstructions blocking the light beam in the sample compartment. * Clean or replace dirty mirrors or optics. * Replace the lamp if it is old. * Align the grating mount if the grating is binding. * As a last resort, replace the detector or Main board.
  • R
    Ronald Foster Jr.Aug 22, 2025
    Why my Thermo Measuring Instruments beeps continuously when turned on?
    • J
      Joseph HunterAug 22, 2025
      If your Thermo Measuring Instruments unit emits a continuous beep when turned on, the keypad circuitry may be shorted or a key may be malfunctioning. Replace the keypad to resolve this issue.
  • J
    jamie58Aug 27, 2025
    What to do if Thermo Measuring Instruments filter wheel does not turn and shows 'Calibrating filter wheel message'?
    • J
      John JohnsonAug 27, 2025
      If the filter wheel on your Thermo Measuring Instruments does not attempt to turn during initialization and continuously displays “Calibrating filter wheel message”, consider the following: * Clean or replace the filter wheel if it is binding. * Ensure the jumper W1 is correctly installed on the Main board. * Check and replace the cable from the filter wheel motor to connector J1 on the Main board, and the cable from the grating motor to J2 connector on the Main board, ensuring they are securely connected. * Replace the filter wheel motor, grating limit switch, or grating motor if they are malfunctioning.
  • R
    robertscarolineAug 31, 2025
    How to fix dark background with light text on Thermo Measuring Instruments display?
    • R
      Rebekah BakerAug 31, 2025
      To fix a dark background with light text on your Thermo Measuring Instruments display: * Run the Service software to recalibrate the instrument and reset the display after pressing the ? and ENTER keys simultaneously at power up. * Install or replace the battery and then run the Service software to recalibrate the instrument and reset the display if the battery is dead or not installed. * If the problem persists, replace the Main board and run the Service software to recalibrate the instrument and reset the display.

Summary

Chapter 1 Instrument Specifications

Chapter 2 Inspection and Performance Checklist

Inspection and Performance Checklist - Master Copy

Provides a master checklist for inspecting and verifying instrument performance during service calls.

Chapter 3 Troubleshooting Guide

Initialization Sequence

Details the step-by-step process for initializing the instrument after power-up or maintenance.

Troubleshooting Chart

A table listing common symptoms, probable causes, and corrective actions for instrument issues.

Chapter 4 Routine Maintenance

Replacing the tungsten lamp

Step-by-step instructions for safely replacing the tungsten lamp assembly.

Changing the fuse

Procedure for replacing blown fuses in the instrument's power entry module.

Chapter 5 Disassembly and Replacement

Light Source (335923-000 [Vis Only], 335902-146 S [UV-Vis Only] and 335908 [Spectronic GENESYS 6 Only])

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

Main (CPU) Circuit board

Detailed instructions for replacing the main CPU circuit board.

Chapter 6 Optical Alignment

Flashing the Lamp for Alignment - Preferred Method

Describes the preferred method for flashing the lamp during optical alignment.

Mirror Adjustments

Details how to adjust the position and alignment of the instrument's mirrors.

Alignment Sequence

Align Source Mirror A

Align Monochromator Mirror B1

Align Sample Mirror C

Beam Alignment with Microcell in Sample Compartment

Chapter 9 SERVICE DIAGNOSTICS SOFTWARE

Initiate Communication

Steps to establish communication between the PC and the instrument using diagnostic software.

Checkbox Functions

Reset Spectronic GENESYS 10

Query Instrument

Update Settings

Calibrate

Detailed steps for performing wavelength calibration using the diagnostic software.

Filter and turret

Alignment Tool

Software tool used for checking limit switches and setting zero order for alignment.

Seek Limit Switch

Software function to locate and test the instrument's limit switch.

Seek zero order

Software function to check and adjust the instrument's zero order position.

Flash Xenon

Detector board Diagnostic

Procedure for testing detector operation and gain settings using the diagnostic software.

Lamp

Chapter 10 RS232 Commands

Data commands

Instrument control commands

Thermo Spectronic GENESYS 10 UV Specifications

General IconGeneral
Wavelength Range190-1100 nm
DetectorSilicon Photodiode
Wavelength Accuracy±1 nm
Wavelength Repeatability±0.1 nm
Scan SpeedUp to 2400 nm/min
Detector TypeSilicon Photodiode
InterfaceRS-232
Power Requirements100-240 VAC, 50/60 Hz
Light SourceDeuterium and Tungsten Halogen lamps
DisplayLCD
Data OutputRS-232
Photometric Repeatability±0.002 Abs
Stray Light<0.05% at 220 nm

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