Glossary



Source: Kältetechnik (Band 1), Klimatechnik
Author Hans-Jürgen Ullrich.
Distribution by Fa. COOL, Silvia Schröder, www.cool-schroeder.de

Glossary

Technical term :

Speciality :

Single duct a/c unit :


In these installations, air prepared in a central vessel is supplied to one or more rooms through ducts. All rooms, therefore, receive air in the same condition. Any individual control of the heat requirement is only possible using additional radiators. The installations are also known as conventional air conditioning plants and are very largely supplied as low speed plants. Typical applications are in buildings with single rooms such as theatres, cinemas, assembly rooms, halls etc. Single duct duct

Fr : gaine (f)
All : Kanal (m)
An : duct
It :
air conditioning plants can be supplied with constant air volume flow.


- A/C > A/C installations > Air/air installations

Electric measuring device :


Hand held electric measuring devices are used professionally on plants, particularly when taking individual measurements. A measuring unit unit

Fr : groupe (m)
All : Aggregat (n)
An : unit
It :
always consists of a probe and a measuring device, which are connected by plug plug

Fr : fiche (f)
All : Stecker (m)
An : plug
It :
contact. The probe has what is really a temperature sensor, which provides the measuring signal in the form of a current or a resistance. The measuring unit unit

Fr : groupe (m)
All : Aggregat (n)
An : unit
It :
has a direct voltage voltage

Fr : tension (f)
All : Spannung (f)
An : voltage
It :
supply (battery) and the measuring signal is converted into a temperature value and displayed. Digital have now taken over the lead from analogue (display units) because of their robustness and simplicity to read. The temperature probes measure the temperature of the medium, in which they are held, and conduct them to the sensor.


- A/C > Measuring devices

Electrode steam humidifier :


There are two electrodes in the steam cylinder. The current flow results from the conductivity conductivity

Fr : conductivité (f)
All : Leitfähigkeit (f)
An : conductivity
It :
of the water. The electric resistance resistance

Fr : résistance (f)
All : Widerstand (m)
An : resistance
It :
which creates itself leads to the heating of the water and to steam forming. The strength of the current flow is determined by the electrode surface, distance and insertion depth. Hardeners (lime) form on the large surface electrodes. As there is a certain insertion depth required for the electrodes, the water level rises in compensation until an electric signal indicates that the cylinder cylinder

Fr : cylindre (m)
All : Zylinder (m)
An : cylinder
It :
is full. Then the cylinder cylinder

Fr : cylindre (m)
All : Zylinder (m)
An : cylinder
It :
or the electrodes have to be changed.


- A/C > Humidification

Dictionary :

Anglais : electrode steam humidifier
Franais : humidificateur à vapeur à électrodes (m)
Allemand : Elektroden-Dampfluftbefeuchter (m)
Italien :


Electronic temperature control :


Electronic temperature controllers need auxiliary electrical energy energy

Fr : énergie (f)
All : Energie (f)
An : energy
It :
to operate. Low voltage voltage

Fr : tension (f)
All : Spannung (f)
An : voltage
It :
of 12 or 24V, a transformer transformer

Fr : transformateur (m)
All : Transformator (m)
An : transformer
It :
or 220V can be applied. The temperature is measured by means of a temperature sensor, which is attached at the required measuring point. Often, platinum resistance resistance

Fr : résistance (f)
All : Widerstand (m)
An : resistance
It :
sensors (for example Pt 100 or 1000) or semi conductor conductor

Fr : paratonnerre (m)
All : Blitzableiter (m)
An : conductor
It :
sensors (PTC or NTC) are used. Platinum resistance resistance

Fr : résistance (f)
All : Widerstand (m)
An : resistance
It :
sensors are very precise but expensive. The measured voltage voltage

Fr : tension (f)
All : Spannung (f)
An : voltage
It :
which changes according to the temperature is applied to a comparator. If the measured voltage voltage

Fr : tension (f)
All : Spannung (f)
An : voltage
It :
and the comparative voltage voltage

Fr : tension (f)
All : Spannung (f)
An : voltage
It :
are the same, a switch is activated which, for example, switches off the installation installation

Fr : installation (f)
All : Anlage (f)
An : installation
It :
via a relay. The installation installation

Fr : installation (f)
All : Anlage (f)
An : installation
It :
only switches on again, when the lower set point has been reached. The difference between the upper and the lower set point is mostly determined according to the application. The temperature is set by means of a potentiometer with scale scale

Fr : dépôt calcaire (m)
All : Kesselstein (m)
An : scale
It :
or by means of a keyboard. In both cases, the comparative voltage voltage

Fr : tension (f)
All : Spannung (f)
An : voltage
It :
is changed at the comparator.


- Refrigeration > Control and measuring > Temperature control

Dictionary :

Anglais : electronic temperature control
Franais : contrôle de température électronique (m)
Allemand : elektronischer Temperaturregler (m)
Italien :


Electronic leak detectors :


These detectors indicate optically or acoustically a change of the ion flow generated by a high voltage voltage

Fr : tension (f)
All : Spannung (f)
An : voltage
It :
corona discharge. Good equipment equipment

Fr : équipement (m)
All : Ausrüstung (f)
An : equipment
It :
automatically compensates the existing contamination of the ambient air. Depending on the detector type, leakages of 5 g/year and below can be detected. However, it should be taken into account that in case of very sensitive equipment, interferences with the equipment equipment

Fr : équipement (m)
All : Ausrüstung (f)
An : equipment
It :
might occur.


- Refrigeration > Refrigerants

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