esera DS18S20 Benutzerhandbuch - Seite 3
Blättern Sie online oder laden Sie pdf Benutzerhandbuch für Zubehör esera DS18S20 herunter. esera DS18S20 4 Seiten. 1-wire temperature sensor
Seite drucken
Art. No. 11119
6
Measuring Accuracy
The sensors are calibrated during manufacture and have a typical measuring accuracy of ±0.5 °K at
23 °C operating temperature. The accuracy deteriorates towards the upper and lower measuring range limits.
Further information can be found in the data sheet of the module on the homepage of the manufacturer.
As with all temperature measurements, however, the physical background must be taken into account to avoid
measurement errors, which have a significant influence on the precision of the measurement setup:
6.1
Thermal contact resistance of the target sensor
This measurement error occurs mainly with surface measurements. Good thermal contact can be remedied by
mounting in a bore hole, by using heat-conducting paste or by using heat-conducting adhesive.
6.2
Thermal Heat Dissipation Sensor Ambient Temperature
For surface measurements, the measurement setup should be thermally insulated from the environment, for
example with foam or mineral wool.
6.3
Thermal Heat Dissipation Sensor Connection Wires
This measurement error can be minimized, for example, by making the connecting cable as thin as possible and
made of material with poor thermal conductivity or by tempering the connecting cable with the measurement
object.
In principle, the highest measurement accuracy can be achieved by immersion in liquids or in a mounting hole.
On the other hand, an additional measurement error should be taken into account when measuring on surfaces.
7
Operating conditions
The sensor is designed for temperature measurement of gases or solids.
The temperature sensors are semiconductor sensors. The unhoused sensors are designed for temperature
measurements in the range from -55 ... +125 °C. These temperature values are limit data and must not be
exceeded or undercut, otherwise the component may be damaged.
8
Disposal information
Do not dispose of the device in household waste! Electronic devices must be disposed of in
accordance with the Directive on Waste Electrical and Electronic Equipment on local
Dispose of at collection points for old electronic equipment!
9
Safety instructions
When using products that come into contact with electrical voltage, the valid VDE regulations must be
observed, especially VDE 0100, VDE 0550/0551, VDE 0700, VDE 0711 and VDE 0860
All final or wiring work must be carried out with the power turned off.
Before opening the device, always unplug or make sure that the unit is disconnected from the mains.
Components, modules or devices may only be put into service if they are mounted in a contact proof housing.
During installation they must not have power applied.
Tools may only be used on devices, components or assemblies when it is certain that the devices are disconnected
from the power supply and electrical charges stored in the components inside the device have been discharged.
Live cables or wires to which the device or an assembly is connected, must always be tested for insulation faults or
breaks.
If an error is detected in the supply line, the device must be immediately taken out of operation until the faulty cable
has been replaced.
When using components or modules it is absolutely necessary to comply with the requirements set out in the
accompanying description specifications for electrical quantities.
If the available description is not clear to the non-commercial end-user what the applicable electrical characteristics
for a part or assembly are, how to connect an external circuit, which external components or additional devices can
be connected or which values these external components may have, a qualified electrician must be consulted.
It must be examined generally before the commissioning of a device, whether this device or module is basically
suitable for the application in which it is to be used.
In case of doubt, consultation with experts or the manufacturer of the components used is absolutely necessary.
For operational and connection errors outside of our control, we assume no liability of any kind for any resulting
damage.
All rights reserved. Reproduction as well as electronic duplication of this user guide, complete or in part, requires the written consent of
ESERA GmbH. Errors and technical modification subject to change. ESERA GmbH, ESERA-Automation 2020
www.esera.de
11119 V2.0 R1.0 Manual
Page 3 of 4