Installation
Tech Support: 1-800-4BIORAD • 1-800-424-6723 • www.bio-rad.com 3-3
Power Supply Requirements
The PTC-100 cycler requires 100–240VAC, 50–60Hz, 350W (4.5 amps momentary),
and a grounded outlet. The instrument can use current in the specified range without
adjustment, so there is no voltage-setting switch.
The PTC-100 cycler is equipped with a power-entry module that accepts cordsets
with an IEC 60320–1 type C13 connector (this is the same standard configuration
used by many computer manufacturers for their equipment). All cordsets used with
the PTC-100 cycler must be rated to carry at least 10A at 125V or 250V, the latter
specification depending upon the supply voltage used. Additionally, the cordset must
meet all other applicable national standards—thus at a minimum, the cordset should
carry the mark of a nationally recognized testing agency appropriate to your nation.
Note: Do not cut the supplied 120V power cord and attach a different connector.
Use a one-piece molded connector of the type specified above.
Air Supply Requirements
The PTC-100 cycler requires a constant supply of air that is 32°C or cooler in order to
remove heat from the instrument’s heat sink. Air is taken in from vents at the rear, sides,
and bottom of the instrument and exhausted from vents on both sides (see figures 2-
1 and 2-2). If the air supply is inadequate or too warm, the instrument can overheat,
causing performance problems, software error messages, and even automatic shut-
downs.
Ensuring an Adequate Air Supply
• Do not block the air-intake vents.
Position the PTC-100 cycler at least 10cm from vertical surfaces and other
thermal cyclers (greater distances may be required; see below). Do not put loose
papers, bench paper, or this manual under the instrument; they can be sucked
into the air-intake vents on the bottom.
• Do not allow dust or debris to collect in the air-intake vents.
The bottom air vents are particularly liable to collect dust and debris, sometimes
completely clogging up. Check for dust and debris every few months, and clean
the intake vents as needed. Remove light collections of dust with a soft-bristle
brush or damp cloth. Severe collections of dust and debris should be vacuumed
out. Turn the instrument off prior to cleaning or vacuuming air vents.