Bio-Rad CHEF-DR II System User Manual
Page 5

Section 2
Specifications
Cooling Module
Chassis
aluminum
Dimensions
42 cm long x 23 cm wide x 24 cm high
Weight
14 kg
Compressor
1/12 HP
Refrigerant
CFC 12
Heat exchanger
stainless steel
Operating range
5 °C–25 °C
Cooling rate (pre-cool)
0.75 °C/minute from ambient to 14 °C
Cooling capacity (input power)
75 watts at 14 °C
Input voltage range
90-132 VAC/47-63 Hz/4 amps
198-264 VAC/47-63 Hz/2 amps
Fuses
6.3 amp Slow-Blow (100/120 V) or
3.0 amp Slow-Blow (220/240 V)
Note: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC rules. These limits provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own
expense.
Section 3
Safety Information
The Cooling Module is operated in conjunction with an electrophoresis apparatus
connected to a high voltage power supply. Although those components of the Cooling Module
which are in contact with the electrically charged buffer are electrically isolated, certain
precautions should be taken to eliminate electric shock hazard.
1) The power supply should be off when connecting or disconnecting tubing.
2) The tubing must be firmly seated against the rubber grommets on the “FLOW IN” and
“FLOW OUT” ports to prevent accidental contact with the metal tubing of the heat
exchanger.
3) The safety interlock of the electrophoresis chamber lid should never be bypassed to
permit operation of the instrument without the lid.
!
2