Eppendorf 3100 Digital Water Bath Shake - Manual (Page 15)

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Innova 3100  M1231-0050 Operating manual
2.8 Bearings
Innova shakers employ shielded lubricated ball bearings of the highest quality.
Shielded bearings minimize the generation of airborne particulates which may be
disadvantageous in clean rooms or controlled environment areas. These bearings
require no maintenance.
2.9 Motor
The Innova 3100 Shaker uses a 3-phase brushless ball bearing DC motor. This low
profile motor provides high torque along with quiet, efficient operation and low
maintenance. This motor has a rating of 1/15 horsepower.
2.10 Electronic Boards
The main control board for the Innova shaker has the following functions:
• Non-volatile memory for storage of key parameters during power interruption;
• Speed sensing, electronic commutation, and power control for the brushless DC
drive motor;
• Maintains an elapsed running time clock;
• Contains firmware for shaker control as well as recognition of an expansion
connector for option modules;
• Provides an operator interface via displays, audible alarm, and connection to the
keypad module (keypad buttons and display graphics).
The Temperature Control module for the Innova shaker has the following functions:
• Control of analog power supplies;
• Rectification and regulation for analog power supplies;
• Provides signal conditioning circuitry and A/D conversion for the RTD-based
temperature measurement;
• Provides remote monitoring capabilities by supplying analog output for speed and
temperature which are compatible with chart recorders and analog data acquisition
system;
• Controls the heater.