Lauda AL 2, Operating Instructions Manual

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Aqualine
12
Unit description
15.03.18/ YACE0086
4 Unit description
4.1 Environmental conditions
The operation of the thermostats is only allowed under the following conditions as specified in
DIN EN 61010-2-010:2003 and DIN EN 61010-1:2001:

Indoor use.

Operation up to a height of 2000 m above sea level is admissible.

Foundation must be dense, even, non-slippery and non-flammable.

Ambient temperature range (

10).
Use only within this range for an undisturbed operation.

Mains supply voltage fluctuations (

10).

Maximum relative humidity (

10).

Transient over voltage according to Installation Categories (Over voltage Categories) II.

Pollution degree: 1.
4.2 Device types
The type designation of the Aqualine water baths is composed of the abbreviation "AL" for Aqualine and
the bath volume.
Example: Aqualine bath with 12 liters maximum volume gives LAUDA AL 12.
All water baths are supplied as standard with a fitted bath cover.
4.3 Material
The bath vessel is made of rust-free stainless steel. The gable cover is made of transparent plastic ma-
terial (Polycarbonate).
The bath cover made of steel is not interchangeable against the bath cover made of plastic material.
4.4 Temperature display, controller and safety circuit
The bath tank is heated from underneath.
The acquisition of the actual value and the control of the bath temperature are carried out with a temper-
ature sensor fitted to the underside of the bath tank.
The units are fitted with a 3-figure 7-segment LED display for indicating the bath temperature and set-
tings as well as the operating status. Entry of the set-point value occurs using adjust keys.
All settings are saved even with a mains failure or with the mains switch set to "OFF".
If the water level in the bath is lower than approx. 20 mm, a safety temperature limiter system will switch
off the heater. The LED display goes out. Unlocking the protection system (

8.1).
If the water bath is operated without water and the temperature on the bottom of the tank reaches
110 °C, an acoustic alarm sounds and the LED display indicates:
E1
.
Resetting the alarm (

7.4).
If the water bath is operated without water and the temperature on the bottom of the tank reaches
150 °C, a safety temperature limiter system switches the device off.
Unlocking the limiter system (

8.2).