Multi Station
Vicat Test Apparatus
15
3.1.3 Temperature control
The temperature controller regulates the temperature of the water bath automatically to the 20±1°C value,
specified by the EN196-3 Standard and should not be changed.
Note
The temperature control heats and cools.
If cold water is being heating, then the temperature can temporarily overshoot the set
value. The temperature is then automatically controlled.
Note
The apparatus is equipped with a flow sensor that only switches on the temperature
control when a constant flow exists (after pushing the green button).
Without any flow, the heat exchanger would otherwise suffer severe damage (could
freeze or burn out).
Note
The temperature control is designed for an ambient room temperature of approx. 20
°C (laboratory conditions). If the ambient temperature differs too greatly from this, then
adherence to the set water temperature cannot be guaranteed.
Do not expose apparatus direct to solar/heat radiation!
Caution!
To prevent contamination of the pump it is important to the drainage of the water that
the right ball valve is opened first to empty the tank. After that, the middle ball valve
has to be opened to drain the remains of the system.
Functions
The open- and closed-loop control equipment installed in the device was developed for control systems in
which several outputs are required. A membrane keyboard with 5 keys is used to input the settings for the
required values (set points), the standby values, and all other parameters for the controllers.
Temperature
1
Heating
2
Cooling
3
no function
