This article is taken from the installation and operation guide for a Midmark M7 steam sterilizer.

Midmark M7 Installation Instructions Leave a comment

In this article, we’re going to show you how to properly install your Midmark Ritter M7 Speedclave. Unlike most autoclave instructions, the installation process for the Midmark M7 is much shorter and less verbose. The installation essentially involves paying attention to the dimensions of the unit and the area in which you choose to store it for use. Following these measurements and using the words of warnings throughout will help you install your M7 properly in no time!

Electrical Requirements 

Refer to the serial number label located on the underside of the sterilizer and connect the three prong electrical supply cord to the appropriate electrical supply.


  • Overall length ……..18.125″ (46.04 cm)Midmark Autoclave
  • Overall width ……. 13.56” (34.45 cm)
  • Overall height …….. 12.81″ (32.5 cm)
  • Counter area ……. 16 1/2″ x 14″ (410 mm x 345 mm)Chamber ……… 7 1/2″ x 15″ (19.0 cm diameter x 38.1 mm deep)
  • Chamber Safety Valve …. set at 31 PSI (214 kPa)


  • Large (2) …………. 12″ x 5.625″ x 0.875″ (30.5 cm x 14.3 cm x 2.22 cm)
  • Small (1) …………. 12″ x 4.125″ x 0.875″ (30.5 cm x 10.5 cm x 2.22 cm)


  • Empty …………. 32 lb (14.5 kg)
  • Operating …………. 33 lb (15.1 kg)


  • 50 Hz Model ……….230 Volts, 5 Amp, single phase
  • 60 Hz Model……….115 Volts, 10 Amp, single phase
  • Heater Element …..1150 Watts
  • Heater Insulation … 20 Megaohms or better

Sterilizer Location

The sterilizer must be placed on a level surface to ensure proper gravity filling of water in the chamber. If the sterilizer is going to be operated under the unusual condition of heavy duty continuous cycles, locate the sterilizer where excessive emission of steam will not damage materials and equipment in the surrounding area.

Allowing sufficient time between cycles for cooling the unit or refilling the reservoir with water (as outlined in step one of the operating instructions) minimizes the emission of steam from the water reservoir fill area.

DANGER – EQUIPMENT ALERT: Do not use this sterilizer where explosive anesthetics are stored. 


A.) Table Top Height: 31″ (760 mm) to 37″ (920 mm) above the floor. This is the Midmark M7 location diagram.

B.) Table Top Surface: Formica, stainless steel or stone. Material to resist spilled water, steam blow-off, discoloration of paint, etc. Heat from bottom of sterilizer will produce about l60°F (71°C) temperature on the surface of the table for short periods of time.

C.) Back Ventilation: Allow about 22″ (540 mm) of counter depth which gives

2 1/2″ (60 mm) of space behind the sterilizer for air circulation when there is a wall behind the sterilizer.

D.) Distance to Side Walls: The sides of the sterilizer should be a minimum of

2 1/2″ (60 mm) from walls, equipment, or other obstructions that might inhibit side air ventilation of the unit.

E.) Distance Above Sterilizer: Wall cabinets or shelves should be no less than 25″ (600 mm) above the counter to provide space for filling the reservoir with water and cooling processed trays.

If you have any questions about this procedure or any other Midmark M7 Tech Issues please contact us and let us help.

Check out our FREE Preventative Maintenance Program here. 

Check out our FREE Autoclave Technical Support Program here. 

Check out our FREE Virtual Assistant, Stanley Sterilizer here. 

The Midmark M7 Autoclave is available here. 

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