Setup mode
OPERATION MANUAL
Chapter 4
Unistat® T300 Series
Liability for errors and misprints excluded.
V1.2.0en/12.05.15//14.06
64
Go to the “Home” screen.
Tap on the keypad symbol next to “T
Setpoint
”.
Enter a setpoint using the number keypad that appears. This setpoint must be below the lower
boiling thermal fluid. This setpoint will be increased in 10 K steps during the degassing process up
to the maximum working temperature.
Confirm your entry by tapping on “OK”.
In the display that follows, confirm your entry again by tapping on “OK”.
The correct selection will be displayed graphically and the setpoint will be changed immediately.
If tapping on “OK” is not correct, this is displayed graphically for 2 seconds. After this, the display
will return to the “Home” screen again. Try changing the setpoint again.
Tap on the “Start” touchbutton.
Confirm the start of temperature control by tapping on “OK”.
The correct selection will be displayed graphically and temperature control will start immediate-
ly. If tapping on “OK” is not correct, this is displayed graphically for 2 seconds. After this, the dis-
play will return to the “Home” screen again. Try to start the temperature control unit again.
Carry out temperature control to the entered setpoint until no more gas bubbles rise up.
Increase the setpoint by 10 K and carry out temperature control until no more gas bubbles rise
up.
Repeat the increasing of the setpoint by 10 K until the maximum working temperature of the
thermal fluid used has been reached.
Tap on the “Stop” touchbutton as soon as no more gas bubbles rise up at the thermal fluid's
maximum working temperature.
Confirm the stop of temperature control by tapping on “OK”.
The correct selection will be displayed graphically and temperature control will stop immediately
and the pump with overrun for about 30 secons. Wait until the pump stops. If tapping on “OK” is
not correct, this is displayed graphically for 2 seconds. After this, the display will return to the
“Home” screen again. Try to stop the temperature control unit again. The degassing process is
complete.
4.4.2.3
Draining externally open applications
Hot or very cold thermal fluid
SERIOUS BURNS/FREEZING OF LIMBS
Before drain
ing, ensure that the thermal fluid has room temperature (20 °C).
If, at this temperature, the thermal fluid is too viscous to be drained: Control the temperature
of the thermal fluid for a few minutes until the viscosity will allow drainage. Never control the
temperature of the thermal fluid when the
>Drain valve<
[4] is open.
>Drain valve<
[4]
is closed by turning it clockwise (turn 90° right as far as it will go).
Danger of burns when draining thermal fluids at temperatures above 20
°C.
Wear your personal protective equipment when carrying out the drainage operation.
Only drain with a suitable draining hose and container (these must be resistant to the thermal
fluid and temperature).
PROCEDURE
Connect a suitable drain hose to the
>Drain<
[8].
Place the other end of the hose in a suitable container.
Table model
Open the
>Drain valve<
[4]
by turning it counterclockwise (turn 90° left as far as it will go). The
thermal fluid will flow from the external application via the pump chamber and the draining hose
into the container.
Drain your externally closed application. The description for the drainage procedure can be
found in the documents you received with the application.
Open the connection
>Circulation flow<
[1].
Open the
>Circulation return<
[2] connection. Leave the temperature control unit open for a
while to dry out (without screw caps) and with
>Drain valve<
[4]) open.
Free-standing models
Open all
>Drain valves<
[3], [4], [5]
by turning it counterclockwise (turn 90° left as far as it will
go). The thermal fluid will flow from the external application via the pump chamber and the
draining hose into the container.
Drain your externally closed application. The description for the drainage procedure can be
found in the documents you received with the application.
Open the connection
>Circulation flow<
[1].