Huber Pilot ONE - Degassing of Bath Thermostat

Setup mode
Chapter 4 OPERATION MANUAL
V1.3.0en/06.07.15//14.06 Liability for errors and misprints excluded. CC®
65
 Tap on the dialog entry “Stop air-purge”.
 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.
 Put the >bath cover< [93] back onto the bath opening.
The volume expansion of the thermal fluid depends on the working temperature range you wish to
work in. Do not go below the minimum bath level/minimal level when working at the “lowest”
working temperature and there should be no overflow from the expansion vessel/temperature
control unit when working at the “highest” working temperature. In case of overfilling, drain the
excess amount of thermal fluid (see page 66, section »Draining the bath thermostat«).
 In case of overfilling, drain thermal fluid via the >Drain< [8] into a suitable container (see page
66, section »Draining the bath thermostat«).
Venting and degassing must be performed especially during commissioning and after changing the
thermal fluid. This is the only way to ensure trouble-free operation. After venting is completed,
follow the steps on page 65 in section »Degassing of bath thermostat«
4.3.1.2 Degassing of bath thermostat
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 components) to higher boiling thermal
fluids, 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 and gas bubbles are
formed that cause the pump pressure to momentarily collapse. This may cause a safety shutdown.
The gas bubbles reach the bath opening and can escape.
If ice crystals form on the evaporator coil, water has accumulated in the thermal fluid. Degas if this
is the case, to avoid damage to the temperature control unit.
Thermal fluids are more or less hygroscopic (water-attracting). This effect increases, the lower the
working temperature. The de-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 64 in section »Filling and venting the bath
thermostat and the externally closed application« and/or cleaned it as per page 77 in section
»Cleaning the thermal fluid circuit«.
 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. Then the display will
return to the “Home” screen again. 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-
ly. If tapping on “OK” is not correct, this is displayed graphically for 2 seconds.
Then the display will return to the “Home” screen again. Try starting the thermoregulation 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.