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Tuttnauer 3850 M - Service Manual

Tuttnauer 3850 M
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OPERATION
&
MAINTENANCE
MANUAL
Table-Top Autoclaves
models
1730, 2340, 2540, 3140, 3850, 3870 M & MK
1730MK Valueklave
Cat. No. MAN205-0007-000E Rev. K
Tuttnauer U.S.A., 25 Power Drive Hauppauge, NY, 11788, USA. Tel (631) 737 4850, (800) 624 5836, Fax: (631) 737 0720
Tuttnauer Europe b.v., Paardeweide 36, 4824 EH, Breda, P.O. Box 7191, 4800 GD Breda, Netherlands. +31/76-5423510,
Fax: +31/76-5423540

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Questions and Answers

  • E
    ejacksonAug 14, 2025
    How to troubleshoot a Tuttnauer Laboratory Equipment when the POWER indicator light doesn't turn on?
    • R
      Randy MorganAug 14, 2025
      If the POWER indicator light on your Tuttnauer Laboratory Equipment does not light up, several issues could be the cause. First, the main switch might be defective, in which case you should check and replace it if necessary. It could also be a problem with the "POWER" bulb itself, so try replacing it. Inspect the line from the entry point to the main switch for any damage and repair it. Another potential issue is an internal electrical problem within the unit, which requires further investigation. Additionally, the “Power” light may need to be replaced.
  • D
    Daniel FloresAug 18, 2025
    What to do if steam escapes from the safety valve of my Tuttnauer 3850 M Laboratory Equipment?
    • P
      Peter LyonsAug 18, 2025
      If steam is escaping from the safety valve of your Tuttnauer Laboratory Equipment, activate the safety valve. If the leaking continues after activation, you will need to replace the safety valve.
  • I
    iparkerAug 21, 2025
    Why won't water enter the chamber of my Tuttnauer 3850 M Laboratory Equipment?
    • D
      Desiree FarmerAug 21, 2025
      If water is not entering the chamber of your Tuttnauer Laboratory Equipment, it could be due to a clog in the multi-purpose valve or the pipe. Follow instructions in para. 6.10 to resolve this issue.
  • A
    Alexander BennettAug 25, 2025
    What to do if the door handle of my Tuttnauer Laboratory Equipment won't turn to open?
    • D
      danawhiteAug 25, 2025
      If the door handle of your Tuttnauer Laboratory Equipment cannot be turned counter-clockwise to open, it may be because the door pin is set in a groove. Try turning the handle slightly in the closing direction (clockwise) and then attempt to open it again. If the problem persists, the door locking system may be stuck or the bellows damaged. Refer to “Pressure Door Lock System”. After opening the door, replace the bellows.
  • C
    Carolyn WilsonAug 27, 2025
    Why is the 'HEAT' light off and there's no heating in my Tuttnauer Laboratory Equipment?
    • A
      anna79Aug 27, 2025
      If the “HEAT” light is not on and there is no heating in your Tuttnauer Laboratory Equipment, the faulty thermostat (B10) should be fixed or replaced.
  • A
    andrewromanAug 31, 2025
    Why is the 'HEAT' light off and heating insufficient in my Tuttnauer Laboratory Equipment?
    • C
      Colton CortezAug 31, 2025
      If the “HEAT” light is not on and the heating is insufficient in your Tuttnauer Laboratory Equipment, the faulty thermostat (B10) should be fixed or replaced.
  • C
    Crystal MurphySep 3, 2025
    Why is the 'HEAT' light off, but my Tuttnauer 3850 M still operates?
    • J
      James CameronSep 3, 2025
      If the “HEAT” light is not on but the autoclave operates in your Tuttnauer Laboratory Equipment, the faulty thermostat (B10) should be fixed or replaced.
  • J
    Jorge WebbSep 6, 2025
    Why does the multi-purpose valve on my Tuttnauer Laboratory Equipment turn backwards?
    • B
      brittanycampbellSep 6, 2025
      If the multi-purpose valve on your Tuttnauer Laboratory Equipment turns backwards, the internal spring in the multi-purpose valve has likely broken. Replace the multi-purpose valve.
  • J
    Jared AtkinsSep 10, 2025
    What causes the timer on my Tuttnauer Laboratory Equipment to not time down?
    • A
      Alexander DonaldsonSep 12, 2025
      If the timer on your Tuttnauer Laboratory Equipment does not time down, the internal gearing has likely worn down. Replace the timer.

Summary

General Information and Warranty

Product Warranty Details

Details the warranty coverage for defects in materials and workmanship for one year.

Component Identification and Functionality

Installation Procedures and Setup

Electrical Connection and Safety

Ensures proper electrical connection, compliance with safety rules and use of earth leakage relay.

Autoclave Setup and Chamber Pitch Adjustment

Steps for setting up the autoclave, including leveling and adjusting chamber pitch with water.

Water Quality Requirements for Sterilization

Acceptable Contaminant Levels in Water

Table listing physical characteristics and maximum acceptable contaminant levels for sterilizer water.

Preparation Before Sterilization

Packaging, Wrapping, and Loading Guidelines

Covers packaging materials, instrument cleaning, loading, and preparation best practices.

Autoclave Operation Guide

Loading, Unloading, and Reservoir Filling

Procedures for loading/unloading instruments and filling the water reservoir with distilled water.

Cycle Operation and Temperature Setting

Covers starting the cycle, setting temperature, pressure gauge, and utilizing the sterilization time table.

Service and Maintenance Procedures

Preventive and Scheduled Maintenance Overview

Describes daily, weekly, and periodic maintenance tasks to keep the autoclave in good working condition.

Cleaning the Air Jet

Procedure for cleaning the air jet, crucial for proper sterilization and preventing failed tests.

Checking the Safety Valve Function

Monthly procedure to check the safety valve for blockages and proper steam release.

Cleaning with Chamber Brite

Chamber Brite Cleaning Procedure

Step-by-step guide for cleaning the autoclave using Chamber Brite, including cautions.

Troubleshooting Common Issues

Unit Not Heating or Drying Properly

Addressing problems where the unit does not heat up or the dry cycle is ineffective.

Failed Spore Tests or Indicator Strips

Identifying reasons for failed tests, such as clogged air jets or incorrect loading.

Poor Drying of Wrapped Items

Addressing issues with wrapped or bagged items not drying properly after the cycle.

Failure to Reach Operating Pressure

Checking voltage, water levels, door seal, and safety valve for pressure issues.

Items Burning or Melting in Chamber

Investigating causes like incorrect water fill, items touching walls, or excessive time.

Tuttnauer 3850 M Specifications

General IconGeneral
BrandTuttnauer
Model3850 M
CategoryLaboratory Equipment
LanguageEnglish

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