User manual

OPERATION MANUAL
Technical changes reserved
0141 0316-155 20.04.2016
Temperature measurement system TLOG20
connections RS232, RS485, USB
DescriptionDescription
Characteristic features
• Up to 20 temperature measurement points
measuring range –55…+125 °C
• Use of temperature probe DALLAS-Sensors type 18B20, 18S20
• Three wire, parallel connection of sensors
• More than 60 meter lead length
• 0.06 °C resolution
• Automatic conguration
• Inclusive simple Windows™ software
Areas of application
• Monitoring of cold storage or stock rooms,
in food industry
• Quality assurance
• Temperature measurement in buildings,
air conditioning, heating control, solar plants
• Dallas connection adapter for customer specic software on Win-
dows or Linux platform
Windows Software
• Display of current temperature values
• Tabular representation of measured values
• Storing of data on hard disk
• Graphics Software as accessories
Operation
The product offers an efcient measurement and indication system for a
maximum of 20 temperature channels. DALLAS sensors of type 1820,
18B20 are used as temperature sensors and these are connected in paral-
lel with a three wire lead. By using suitable cables, it is possible to achieve
larger lead lengths up to a few hundred meters.
The integrating member between PC and sensor network is a micro cont-
roller module which is inserted at the serial COM-Port and makes the DAL-
LAS-Touch-Bus ready through a six pole RJ12 plug connector. Suitable
connection cable or measurement sensor can be easily made or can be
readily procured from us.
The micro controller controls the dallas touch bus, manages the serial num-
bers and picks up the temperatures of all connected sensors in a cyclic
manner. The currently measured values are sent as ASCII string to the con-
nected PC. The display and graphical representation of measured values
(option) appears on the PC. An easy to use Windows software for display
of measured values and data representation is included in the scope of
supply.
More such modules can be operated with a PC, provided more free COM-
ports are available at our disposal.If the program RECORDER is used, only
one module per PC can be read.
Technical Data
Temperature measurement
Number of channels congurable, 1 to 20
Measurement range -55...125 °C
Typical accuracy
for sensor DS18B20:
for sensor DS18S20:
conform wirh the used sensor
±0,5 °C (-10...+55 °C)
±2 °C (-55...-10 °C, +85...+125 °C)
±0,5 °C (0...+70 °C)
(see curve on page 2)
Module
Dimensions modul L785 x W40 x D21 mm
Operating temperature
Micro controller circuit
-10...+55 °C
Operating voltage DC 9 V-24 V DC (mains plug)
Operating current approx. 40 mA
Interface
4800 Baud, 8 Data bits,
No parity, One Stop bit
CE-Conformance
EMV-noise emission:
EMV-noise withstanding:
2014/30/EU
EN 61000-6-3:2011
EN 61000-6-2:2007
Accessories See ordering numbers on page 5
Article number Interface
0567 0002
RS232
0567 0003 RS485
0567 0004 USB 1.1, 2.0 and 3.0 compatible
0567 0002 (RS232-Interface)
The variants with other inter-
faces look slightly different
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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