Huber HTS 15 EO, Operation Manual

Page: 57 / 82

Setup mode
Chapter 4 OPERATION MANUAL
V2.3.0en/22.04.20//17.12
Heat Transfer Station eo
57

Using the number keypad that appears, enter the time interval for venting. The default is 0.5
minutes.

Confirm your entry by tapping on “OK”. Venting will start.

Refill thermal fluid as needed. Observe the fill level in the
open application
. The filling/venting
process is complete when the temperature control unit is filled sufficiently.
The volume expansion of the thermal fluid depends on the working temperature range you wish to
work in. A “Min” mark must not be undercut in the bath vessel (top edge of the back flow + ca. 1
cm safety) at the “lowest” working temperature and a
“Max” mark
must not be exceeded in the
bath vessel at the “highest” working temperature. In case of overfilling, please skim off thermal
fluid from the bath into a suitable container before starting thermoregulation. Check if the thermal
fluid can be reused. On page 15 observe section
»Proper disposal of resources and consumables«
.
In case of too little thermal fluid, the pump sucks air instead of thermal fluid. This “dry run” of the
pump is detected by the sensors and the electronics and a safety shutdown occurs. Therefore,
please provide for sufficient thermal fluid.

Stop venting. To do this, go to the category “Temperature Control”.

Tap on the category “Start/Stop”.

Tap on the dialog entry “Stop venting”.

Confirm your choice by tapping on “OK”. Venting is stopped and the pump continues to run for
approx. 30 seconds. Wait until the pump stops.

Switch off the temperature control unit.

Check the level in the collecting container. Empty the container when necessary and dispose of
its contents properly.
The temperature control unit is now filled.
4.3.1.2 Degassing externally open applications
Hot or cold thermal fluid and surfaces
BURNS TO LIMBS

Avoid direct contact with the thermal fluids or the surfaces.

Wear your personnel protective equipment (e.g. temperature-resistant safety gloves, safety
goggles, safety footwear).
When changing from low-boiling thermal fluid (low-boiling component) to higher boiling thermal
fluid, remains of the low-boiling component may remain in the temperature control unit. Depend-
ing on the working temperature, the low-boiling component begins to boil, gas bubbles form and
cause the pump pressure to momentarily collapse. This may cause a safety shutdown. The gas
bubbles reach the bath opening and can escape.
Thermal fluids are hygroscopic (water-attracting) to a greater or lesser degree. This effect increases
as the working temperature decreases. The off-gassing mode below, which must be
permanently
monitored , also helps you remove any water residues from the temperature control circuit.
PROCEDURE

Follow venting with the degassing operation. Prerequisite: You have filled the temperature con-
trol unit in accordance with the instructions on page 56 in Section »Filling and venting externally
open application« and/or cleaned it as per page 74 in Section »Rinsing the thermal fluid cir-
cuit« .

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, it will be displayed graphically for 2 seconds. The display will re-
turn to the “Home” screen. Try changing the setpoint again.

Tap on the “Start” touch button.

Confirm the start of temperature control by tapping on “OK”.
The correct selection will be displayed graphically and temperature control will start immediate-