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Electron Microscopy Sciences


arrow13Microwave Oven and Accessories

PDF DownloadEMS 9000 Microwave Ovenarrow12EMS-9000 Precision Pulsed Laboratory Microwave Oven

The EMS 9000 Laboratory Microwave Oven represents a state-of-the-art solution for performing many of the steps in sample preparation prior to either light or electron microscopy. Procedures such as fixation, staining, dehydration, decalcification, impregnation, polymerization as well as immunohisto and cytochemistry can be done with ease in the EMS 9000.

The EMS 9000 offers a significant reduction in processing times while obtaining improved results.


  • 825 watt nominal output with variable wattage
  • Bubble Manifold for 5 tubes
  • Forced exhaust system with fail safe interlock
  • Adjustable duty cycle-one second and greater for very precise process control
  • Magnetron pre-warming
  • View more videos

  • Right side closet
  • Vacuum system for rapid infiltration (optional)
  • Load cooler/circulation system (optional)
  • Three different timer modes
  • Multiple safety interlocks
  • Visual and Aural Warnings on errors and malfunctions
  • All controls are automated
  • Flexible temperature probe

Advantages of the EMS 9000 Precision Pulsed Laboratory Microwave Oven

  • Ease of use: User-friendly touch keypad to set and store all parameters-programmable
  • Multiple running modes
  • Multiple bubble mixing (5 ports)
  • Adjustable temperature probe
  • Ventilation
  • Optional vacuum cycling for rapid infiltration
  • Optional Load cooler
  • Safety exhaust fans with fail safe interlock
  • Integrated on board digital controller


  • 8' Ventilation Hose
  • User's Manual
  • Microwave Companion
  • Processor Tray
  • Vacuum Processor Bowl (when ordering the unit with Vacuum option)
  • Vacuum Processor Cover (when ordering the unit with Vacuum option)
  • 74 Position Cassette Basket Set
  • (2) Histoprocessing Bowls
  • (2) Microwave Transparent Containers
  • Polar Heat Sample Pack
  • Preserve Solution

For Optimum Results

The EMS 9000 features a touch pad keyboard that allows for all settings to be programmed quickly and easily. With a very well defined adjustable effect, accurate temperature control, well ventilated chamber, and three different timing modes, the EMS 9000 is the most advanced microwave processor available today.

For Temperature Control

Our temperature control not only prevents the tissue in the chamber from becoming denatured (by high temperature) but it also assists in pulsing the microwave effect in small precise portions. The temperature control has a direct effect on the magnetron for it allows the unit to switch on and off in the most efficient way at the preset effect level. The temperature probe is mounted on a ball swivel that allows for easy placement of the probe within the microwave chamber. In addition, the probe is made from stainless steel and it is quite flexible so that it may be bent and formed as required to place it in various shaped containers. The temperature sensor is located at the tip of the probe.

Adjustable Set Effect

The set effect is adjustable at anytime either before or during a run. This aids in the balance of the microwave load and the content of the microwave absorber. It should be noted that the penetration rate and process times are influenced by the presence of microwave radiation in the chamber and for this reason it is imperative that the effect rate be adjustable. The unit allows for preset parameters, which are stored in the EMS 9000 memory and are called upon to perform particular processes automatically.

Precision Pulsed Laboratory Microwave OvenBubble Mixing from up to 5 Tubes

Inside the chamber there is a manifold for up to 5 tubes that allows you to achieve bubble mixing in from one to five containers at the same time. There is a built in air pump that facilitates the mixing and avoids temperature gradients in the mixing process. These adjustable bubble mixers make the EMS 9000 ideal for decalcification.

Our unit is so versatile that you have the option to run it in three different modes depending on your application.

  1. Dual Mode
    a. Time at temperature – The timer starts after the selectable threshold temperature is reached.
    The timer measures the time of the process at the set point temperature.
    b. Total time – The timer starts upon entry into "run" state and measures the total time of the process including the ramp-up time.
  2. Extended timer range of 99 hours: 59 minutes: 59 seconds
  3. Count up and count down timing

The EMS 9000 processor has two microwave power control modes.

  • Temperature – Under the temperature control the power is adjusted in a closed loop fashion to obtain a particular temperature profile.
  • Power –Under power control the power is adjusted in a fashion that ignores the process temperature as a control factor. In both of the control methods power output is pulsed with a one second cycle time. However because the EMS 9000 can supply power pulses as short as 10 milliseconds, the power output can be finely tuned to provide excellent control in both modes.

The system has many unique safety features that make the EMS 9000 the safest unit on the market.

The on-board screen will caution and shut down the system if there is high probe temperature, system over temperature; keyboard error; inoperative vent or low probe temperature.

The oven chamber is made entirely of stainless steel and is very easy to clean. It is extremely resistant to all staining solutions and solvents. The floor of the unit is ceramic which serves as a thermal insulator and will not absorb microwaves and it is completely chemical resistant.

The EMS 9000 is designed for easy operation and maintenance. All of the controls can be set with one hand and are easily accessible allowing for changes at anytime.

The unit has a built-in reflector inside the chamber that evenly distributes the microwaves and prevents "hot spots" from forming even for very small volumes.


Microwave Output 825 W
Effect Range 0-100%
Temperature Range 0-120°C
Temperature Accuracy Timer error: <0.1% in all modes
Temperature Readout Update Rate once/sec
Temperature Readout Accuracy <0.5°C
Power Control Accuracy error <1%
Air Agitation: Total air agitator flow is 1 liter per minute nominal
Internal Lighting Chamber Lighting available at all times via keyboard switch (40 watt incandescent lamp)
Fluid Ports 2 ports supplied as a standard – accepts up to 3/16" hose.
Pulse Length 1 second
Timer Value 0-99:59:59
Vent System Vent fan rated at 106 CFM nominal
Input Power 15A at 120 Volts nominal
10A at 230 Volts nominal
System Dimensions 19" High x 21.5" Wide x 24.5" Diameter
(48.3 cm x 54.6 cm x 62.2 cm)
Microwave Chamber 9.5" High x 13.5" Wide x 15.5" Diameter
(24.1cm x 34.3cm x 39.4cm)
Weight 70 pounds
Continuous Run Timer override works as a count up timer for an indefinite period of time.
Safety Interlocks * Vent interlock inhibits operation unless vent airflow is normal
* Primary Door Interlock
* Secondary Door Interlock
* Monitor Switch - Short circuit of the magnetron when door is open
* Oven temperature Switch
100, 120, 230 volt models FCC approved, CSA NRTL approved.

Ordering Information

97030 EMS 9000 Laboratory Microwave Precision Pulsed Microwave Oven. Complete with: Integrated Vacuum pump, Remote Temperature Probe, Stirrer Antenna each 19,500.00 Add to Cart

arrow14Optional Accessories

arrow12EMS 9000 Processing Chamber: An EMS Exclusive

Microwave processing tissues for electron microscopySturdy, heat & chemical resistant guide allows exact placement of processing chamber every time.
Lynx I specimen vial are locked in and tip-proof during processing.
Lynx I specimen vial are locked in and tip-proof during processing. That's the specimen basket holder assembly in the rear vial.User may mix and match the basket configuration to match the workload
User may mix and match the basket configuration to match the workload.

Microwave processing tissues for electron microscopy can yield inconsistent results caused by different microwave distribution patterns within the microwaves chamber. Exact, consistent placement of samples within the chamber is key to achieving uniform results. After two years of development and testing at a leading University Hospital, Electron Microscopy Sciences is proud to introduce the MPC 9000. The MPC 9000 developed only for our use in our top-of-the-line EMS 9000 laboratory microwave processor, hits the target that every laboratory needs: consistent processing, vacuum infiltration, and quick specimen turnaround.


  • Sturdy heat and chemical resistant guide frame.
  • Uses standard EMS Lynx I & II specimen handling technology.
  • Two tip-proof processing stations for disposable processing vials.
  • A wide range of processing baskets configurations available.
  • Feed-through for process temperature probe placement while under vacuum.
  • Low maintenance chamber disassembles for easy cleaning.
97045 MPC9000 Microwave Processing Chamber each 725.00 Add to Cart

arrow12EMS 9002 Vacuum Processor (factory-installed option)

Made from Pyrex® glass which offers better temperature conductivity and stability than any other material and is chemically resistant and microwave transparent.

he EMS 9002, when used in conjunction with our EMS 9000 processor, improves ultra-structural preservation during microwave assisted chemical fixation and reduces infiltration times dramatically.


Vacuum Pump

Voltage 115V
Amps 2.6
CFM (Free Air) .8
Fittings ¼" I.D. tubing

Cassette Rack

Material All PTFE


Dimensions Tray: 12" x 10" x 5"

Bowl: 9.75" diameter x 2" depth

Liquid Capacity 2.9 liters
Vacuum Cover Material polypropylene
Fittings ¼" I.D. tubing

Ordering Information

97050-A EMS 9002 Vacuum Processor, factory installed option, Complete with Processing Vessel, Cassette Rack, and Vacuum Pump. each 1,750.00 Add to Cart
arrow12EMS 9002 Vacuum Processor Accessories
Vacuum Processor Kitarrow12Vacuum Processor Kit

For vacuum processing of tissue samples in the Vacuum Microwave Processor


  • Vacuum Processor Bowl
  • Processor Tray
  • Vacuum Processor Tubing Kit
  • 74 Cassette Processing Rack
97052-10 Vacuum Processor Kit each 1,300.00 Add to Cart
arrow12Vacuum Processor Tubing Kit

Used in conjunction with Vacuum Processor Bowl and Vacuum Processor Cover.

97052-11 Vacuum Processor Tubing Kit each 26.00 Add to Cart
Non-Vacuum Processor Kitarrow12Non-Vacuum Processor Kit

For processing of tissue samples in the Microwave Processor.


  • Non Vacuum Processor Bowl
  • Processor Tray
  • 74 Cassette Processing Rack
97052-12 Non-Vacuum Processor Kit each 725.00 Add to Cart
74 Cassette Processing Rackarrow1274 Cassette Processing Rack

For cassette storage during tissue processing.

97052-13 74 Cassette Processing Rack each 260.00 Add to Cart
Processor Trayarrow12Processor Tray

Used to transfer processor bowls in and out of microwave processors. Made of durable microwave transparent polypropylene plastic.

97052-14 Processor Tray each 690.00 Add to Cart
Vacuum Processor Bowlarrow12Vacuum Processor Bowl

Used in conjunction with Vacuum Processor Cover and Vacuum Processor Tubing Kit.

97052-15 Vacuum Processor Bowl each 230.00 Add to Cart
Non-Vacuum Processing Bowlarrow12Non-Vacuum Processing Bowl

Not for use with vacuum attachments

97052-16 Non-Vacuum Processing Bowl each 146.00 Add to Cart

Neon Bulb Arrayarrow12Neon Bulb Array*

This Neon Bulb Array is made from silicone and has many advantages

  • Silicone has a high resistance to extreme heat.
  • The silicone holds each bulb snugly and prevents bulb spillage during handling.

Each bulb in the mat is 2.5 cm apart. The mat is divided into quadrants. A mark on the back left corner of the array lid is used to key the back left corner of the oven. There are letters and numbers along each edge for easy placement on the Alpha-numeric tray. The mat size is 8" x 8".

97036-01 Neon Bulb Array each 130.00 Add to Cart


Staining and General Purpose Laboratory Microwave Ovensarrow13