B + B Thermo-Technik DS 1820-PUR-2M, DS 1820-PUR-5M, DS1820-PUR-10M User guide

OPERATION MANUAL

Temperature probe DS18S20 with
PUR-cable and RJ12 connector

DescriptionDescription

Characteristic features

• Ready made, plug-in type temperature probe

with DALLAS semi-conductor sensor DS18S20

• High quality PUR-connection cable

• Continuous operating temperature –40 ... +125 °C

• Sensor in stainless steel protective sleeve

• Splash waterproof

• RJ12 plug connector with breakage protection

• Resolution 0.06 °C

• Accuracy ±0.5 °C nominal (from -10...+85 °C),

as per data sheet of manufacturer

• Scratchpad memory for probe identication

Areas of application

• Monitoring of frozen goods as per cold storage regulations

• Building instrumentation

• Air conditioning systems

• Quality assurance

• Science, research and laboratories

• Industrial temperature logging

Technical data

Temperature probe DS18S20 with PUR-cable and RJ12 connector

Temperature measuring range -55...+125 °C

Operation range -40...+130 °C

Accuracy ±0,5 °C (-10...+85 °C)

Sensor DS18S20

Probe Protection sleeve, stainless steel

1.4571; Ø6xL40 mm

Cable TPE/Cu/TPE, 3x0,14 mm²

2000 mm

Connection RJ12 connector

CE-conformance 2004/108/EG

EMV-noise emission EN 61000-6-3:2011

EMV-noise withstanding EN 61000-6-1:2007

Article Art.-No.

Temperature probe DS18S20 with cable 2 m DS1820-PUR-2M

Temperature probe DS18S20 with cable 5 m DS1820-PUR-5M

Temperature probe DS18S20 with cable 10 m DS1820-PUR-10M

Technical changes reserved

0141 0316-186 21.08.2015

B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com

Available probes

The reasonably priced probes with PUR-connection cable are meant
for measurement in open atmosphere, on surfaces or in non-aggressi­ve gas medium. The probes are sealed and can bear water contact for
some time. However, long term immersion in liquid is not recommen­ded.The models with stainless steel probe tube are chemically stable
and the tube portion of probe can be submerged in liquid, the stainless
steel (1.4571) does not get affected.

Temperature range

The Dallas temperature sensors are semiconductor sensors. The
un-housed sensors are suitable for temperature measurement in the

range of –55 … +125 °C. These temperature values are the nal limits

and operating above these values is not at all recommended, otherwi­se the component can get damaged.
In addition, the allowable application temperature also depends on the
connection cable and type of protection sleeve used. The operation
range of the cable is -40...+130 °C, so the probe should not be used
above these values.

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OPERATION MANUAL

Temperature probe DS18S20 with
PUR-cable and RJ12 connector

Installing and conguration

The Dallas temperature sensor of type 1820 has an internal iden-

tication (serial number) and can be operated in parallel together

with several other components on a three-wire bus. After wiring all

the sensors, the PC adapter must be individually congured for the
connected sensors. Operation is not possible without prior congu­ration of the system. Since the conguration is stored in the internal

EEPROM of adapter, this process is to be done only once. Only if an
additional sensor is to be used on the existing network, the congura­tion needs to be repeated.
The sorting of probes, found on the network, is done on the basis of
binary serial number.

Pin conguration of RJ12-plug connector

The Western-plug connector is congured as follows (View on the

cable, i.e. contact surfaces of the plug!):

1 Shielding or unoccupied
2 Ground
3 Dallas Data or unoccupied
4 Dallas Data
5 +5 V
6 +5 V or unoccupied

Thermal heat transfer of sensor-ambient temperature

During surface measurements, the measuring arrangement should
be thermally insulated from the surroundings, for example, with some
foam material or mineral wood.

Thermal heat transfer of sensor-connecting wires

This measuring error can be minimised by itself, for example, if the
connecting lead used is as thin as possible and the connecting mate­rial is a bad thermal conductor or if the connecting wire is tempered
with the measuring object.
In principle, of course, the highest measuring accuracy is achieved
through immersion in liquids or in a mounting tube. However, an addi­tional measuring error should be included while taking measurements
on surfaces.

Accessories

Accessories Articleno.

Distribution box for temperature
measuring system, 10 sockets
RJ12

Temperature measuring system
TLOG with RS232-Interface

Temperature measuring system
TLOG with USB-Interface

Humidity/temperature measu­ring system with USB-interface
Hytelog Multisensor USB

VERT-GEH

0567 0002

0567 0004

0567 0001

Measuring accuracy

The sensors are calibrated during manufacture and have a typical
measuring accuracy of ±0.5 °K at 23 °C application temperature. At
the upper and lower limit of measuring range, the accuracy is some­what on the lower side. Further information is available in the data
sheet of component at the website of manufacturer.
During all temperature measurements, the physical conditions are
also to be taken care of in order to avoid measuring error, which
mainly decides the precision of measuring arrangement.

Thermal transition resistance of measuring object­sensor

This is the main measuring error which occurs during surface mea­surements. This can be eliminated by providing good thermal contact
through mounting in a tube, applying thermal conducting paste or
thermal conducting adhesive.

Technical changes reserved

0141 0316-186 21.08.2015

B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com

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