Physitemp Instruments BFS-30VT - Manual (Page 2)

1. Summary of Operation
The BFS-30VT is designed to provide consistent accurate cooling control to the VT-1000
specimen bath. The BFS-30VT will hold temperature setpoint within ½ degree. The tem-
perature control utilizes a peltier cooling unit. Peltier cooling units are heat exchangers
that generate cooling by removing the heat. In order for a peltier to continue cooling, the
heat must be removed from the cooling unit. Therefore, the BFS-30VT requires an exter-
nal water source to act as a radiator and remove generated heat. The BFS-30VT is
shipped with fittings and water hoses to accomplish this goal. For those installations
where an external water source in not available or practical, an optional closed loop water
system is available (Our catalog number PTU-3).
The Vibratome BFS-30VT bath mounts inside your current VT-1000 bath. The standard
bath is removed and the new refrigeration chamber mounts to the post in the same man-
ner as the old one. The control unit has a simple set point control LED readout and push-
button entry control. Once the unit is turned on, the LED displays the set point and cur-
rent temperature. The set point can be adjusted by simply incrementing the set point up
or down via the pushbuttons.
2. Unpacking and Checking Package Contents
Your BFS-30VT refrigeration module and digital temperature controller is comprised of
the following items:
1. Digital Temperature Controller with AC line cord
2. Refrigeration Bath Module with 3 foot connector lead and water tubing
3. 5 foot water tubing extension with universal tubing adapter and self-
sealing female fittings
4.
Operating Manual with Warranty Registration Card
Optional accessories purchased with this unit may include:
1. Closed Loop Water System, Catalog # PTU-3 or
2. Electrically Controlled Solenoid Valve, ECV-1
Supplied with the PTU-3 are:
1. An AC line cord with auxiliary input connector
2. Two 5 foot extension water tubes with male and female self sealing fittings
Supplied with the ECV-1 are:
1. An AC line cord with auxiliary input connector
2. A 12 VDC 1.3 Amp desktop power supply
2