Physitemp Instruments BFS-MP 6310 Rev1 Pak400 2 - Manual (Page 3)

BFS/MP SERIES THERMAL STAGES
1.0 GENERAL DESCRIPTION
1.1 Physitemp manufactures three freezing stages for use with microtomes. All stages operate in the
same way to reach the minimum set temperature. They differ in surface area, as follows:
BFS-3MP has stage area 3cm x 4cm
BFS-5MP has stage area 3.8cm x 4cm
BFS-30MP has stage area 7.5cm x 8cm
BFS-40MP has stage area 7.1cm x 8.3cm
This manual also covers the FRM/MP
series freezing microtomes which com-
prise a BFSMP Stage and and ERMA
Microtome.
1.2 The BFS/MP THERMAL STAGE
The stage is a metal plate, 1/16” thick.
Heat is supplied to or withdrawn from the
specimen by means of an electric heat
pump attached to the underside of the
plate, and excess heat is conducted away
by cooling water through the heat sink.
1.3 The CONTROLLER will maintain stage temperature at any point between -35° (-40° for BFS-
40MP) and ambient. Resolution is 1/10°C. It has a simple set point control LED readout and pushbutton
entry control. Once the unit is turned on, the LED displays the set point and current temperature. The set
point can be adjusted by incrementing the set point up or down with the pushbuttons. See page 5.
1.4 Optional PUMP AND TANK UNIT, PTU-3. The stage needs running water for operation. If
access to a water tap is inconvenient, a circulating pump with a water tank (PTU-3) is required.
1.5 Optional ELECTRICALLY OPERATED SOLENOID VALVE, ECV-1, enables the user to acti-
vate a tap water supply with the controller power switch.
2.0 UNPACKING AND CHECKING THE PACKAGE CONTENTS
The BFS-MP Controller and Stage is comprised of the following items.
1. Digital Temperature Controller with AC line cord
2. A Freezing Stage with 3 foot connector lead and water tubing with self-sealing male
fittings.
3. 5 foot water tubing extensions with self-sealing female fittings
4. Operating Manual with Warranty Registration Card
Optional Accessories purchased with the unit may include:
1 PTU-3 Pump and Tank Unit, supplied with AC line cord and 5 foot extension water
tubes with male and female self-sealing fittings
2 ECV-1 Electrically Controlled Solenoid Valve, supplied with AC line cords and a
12VDC 1.3 Amp desktop power supply
3
MOUNTING
HARDWARE
TEMPERATURE
CONTROLLED SURFACE
WATER
TUBES
ELECTRICAL
CONNECTIONS
QX CW shared\Operating Manuals\EB BFS-MP Pak400 Rev1 1010
HEAT
SINK