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Table of Contents
I N S T R U C T I O N S
Type HTH-6200
67037B 01/13 - (DJU)
English
INTRODUCTION
HTH-6200 is a series of combined electronic humidity and temperature
sensors that communicate via RS485 RTU Modbus. They are primarily
intended for measuring relative air humidity and temperature in ventilation
systems. The combined humidity and temperature sensors are used for
monitoring, control and regulation purposes together with an electronic
controller, e.g. in PLC, BMS or SCADA systems. All commands and data
exchanged between the HTH-6200 and the controller are sent as digital
values via the RS485 RTU Modbus protocol. As the built-in Modbus
communication reduces installation costs, HTH-6200 is highly suitable for
integration with PLC, BMS and SCADA systems.
DESCRIPTION
The HTH-6200 series contains three variants. The physical design of the
three is identical, the only difference being the way in which the products
are Modbus addressed.
PRODUCT PROGRAMME
Type
Product
HTH-6202 Humidity and temperature sensor with Modbus
HTH-6203 Humidity and temperature sensor with Modbus
HTH-6204 Humidity and temperature sensor with Modbus
INSTALLATION
HTH-6200 sensors are installed in the ventilation duct using the accompa-
nying bracket, which must be attached to a firm, level surface by means
of two screws (fig. 4). The 18-30 V DC supply voltage (24 V DC nominal
voltage) is provided via the Modbus connection. HTH-6200 has a pre-fitted
7000 mm cable (fig. 5), which is equipped with a standard RJ12 connec-
tor (fig. 3). The cable may be extended to as much as 50 m without any
negative effects on measuring accuracy. The surrounding EMC environ-
ment must, however, be taken into account and must be capable of being
defined as low. To extend the cable, use a crossover Category 3 extension
cable, RJ12-RJ12, 6P6C.
The sensor should be installed in such a way that the air flow in the duct
can pass unhindered through the measuring hole at the end of the sensor,
which should be aligned parallel to the air flow. Although HTH-6200 is not
affected by the position in which it is installed, it is advisable not to install
the sensor in an upright position with the cable downwards as this may
cause moisture to accumulate in the sensor (fig. 2). It is important that
HTH-6200 is installed in such a way that the measuring hole is positioned
at the centre of the duct.
TECHNICAL DATA
Supply voltage .......................................... 18-30 V DC, nominal 24 V DC, via Modbus
Modbus ...................................RS-485, 38.4 kbaud, 24 V DC, RJ12 connector (6P6C)
Modbus address HTH-6202 ............................................................. Hex=7A / Bin=122
Modbus address HTH-6203 ............................................................. Hex=7B / Bin=123
Modbus address HTH-6204 ............................................................. Hex=7C / Bin=124
Modbus connection ................................................................. 1 x RJ12 6/6 connector
Cable length, pre-fitted....................................................................................7000 mm
Max. cable length .........................................................50 m (in low EMC environment)
Measuring range, humidity ....................................................................... 0 to 100% rH
Measuring range, temperature .................................................................. -40 to 120°C
Measuring accuracy, humidity (10-90% rH) ...................................................... <2% rH
Measuring accuracy, humidity (0-10% rH / 90-100% rH) ................................. <5% rH
Measuring accuracy, temperature (15-40°C) ...............................................<+/-0.25°C
Resolution, humidityu .......................................................................................... 0.03%
Resolution, temperature ......................................................................................0.01°C
• English
Long-term stability, humidity .................................................................. <0.5% rH/year
Enclosure rating, in duct .......................................................................IP32 (EN 60529)
• Deutsch
Enclosure rating, outside duct ..............................................................IP54 (EN 60529)
Dimensions ............................................................................................... see figs 1 & 2
• Français
Weight ...................................................................................................................250 g
• Svenska
MODBUS
• Norsk
Modbus protocol
The communication protocol is: 38.4 kbaud, 1 start bit, 8 data bits, 1 stop
• Dansk
bit and no parity.
Modbus addresses
HTH-6202 has the following fixed Modbus address: 0x7A (hex) / 122 (dec)
HTH-6203 has the following fixed Modbus address: 0x7B (hex) / 123 (dec)
HTH-6204 has the following fixed Modbus address: 0x7C (hex) / 124 (dec)
HTH-6202 INPUTREG
Addr-0 (REG-1) Software ver. (1/100)
Addr-1 (REG-2) Humi_SupRH (%rH) (1/100)
Addr-2 (REG-3) Humi_SupTemp (°C) (1/100)
HTH-6203 INPUTREG
Addr-0 (REG-1) Software ver. (1/100)
Addr-1 (REG-2) Humi_ExtRH (%rH) (1/100)
Addr-2 (REG-3) Humi_ExtTemp (°C) (1/100)
HTH-6204 INPUTREG
Addr-0 (REG-1) Software ver. (1/100)
Addr-1 (REG-2) Humi_ExtRH (%rH) (1/100)
Addr-2 (REG-3) Humi_ExtTemp (°C) (1/100)
SERVICE AND MAINTENANCE
HTH-6200 contains no components which require service or maintenance.
The measuring hole at the end of the sensor must, however, be kept free
of dust and dirt so as to allow the free and unobstructed passage of air
through the hole.
Please contact your supplier if faults arise.
DISPOSAL AND ENVIRONMENTAL PROTECTION
Help protect the environment by disposing of the packaging and redundant
products in a responsible manner.
Product disposal
Products marked with this symbol must not be disposed of along with
household refuse but must be delivered to a waste collection centre in ac-
cordance with current local regulations.
OJ ELECTRONICS A/S
Stenager 13B · DK-6400 Sønderborg
Tel. +45 73 12 13 14 · Fax +45 73 12 13 13
oj@oj.dk · www.oj.dk
CE MARKING
OJ Electronics A/S hereby declares that the product is manufactured in
accordance with Council Directive 92/31/EEC on electromagnetic compat-
ibility (and subsequent amendments) and Council Directive 73/23/EEC on
electrical equipment designed for use within certain voltage limits (and
subsequent amendments).
Applied standards
EN 61000-6-2 and EN 61000-6-3 Electromagnetic Compatibility (EMC).
© 2013 OJ Electronics A/S
^
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Humidity measurement
Temperature measurement
Humidity measurement
Temperature measurement
Humidity measurement
Temperature measurement
K
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Summary of Contents for OJ Electronics HTH-6200
- Page 1 · www.oj.dk which should be aligned parallel to the air flow. Although HTH-6200 is not affected by the position in which it is installed, it is advisable not to install...
-
Page 2: Troubleshooting
Wrong Modbus communication Set the correct Modbus address and Modbus communication parameters in the parameters receiving unit. The communication protocol for the HTH-6200 series is 38.4 kbaud, 1 start bit, 8 data bits, 1 stop bit and no parity. Defective receiving unit Replace receiving unit. - Page 3 Kabeldurchführung vermieden werden, da dies zu Feuchtigkeitsansamm- die EU-Richtlinie 92/31/EWG und spätere Änderungen über elektromag- lung im Fühler führen kann (Abb. 2). Bitte bei der Montage des HTH-6200 netische Verträglichkeit sowie die EU-Richtlinie 73/23/EWG und spätere beachten, dass die Messöffnung in der Mitte des Kanals platziert ist.
-
Page 4: Fehlersuche
Die physische Position des HTH-6200 im Kanal kontrollieren. Die Messöffnung an der 6200 im Kanal Spitze des HTH-6200 ist soweit möglich in der Mitte des Kanals zu platzieren. Die Messöffnung an der Spitze des Fühlers ist so zu montieren, dass der Luftstrom im Kanal ungehindert durch die parallel zum Luftstrom liegende Öffnung geleitet wird. -
Page 5: Installation
électromagnétique et à la directive dans la sonde (fig. 2). Il est important que le HTH-6200 soit installé de telle 73/23/CEE relative à des équipements électriques conçus pour utilisation façon que le trou de mesure soit positionné... -
Page 6: Diagnostic De Pannes
Vérifiez la position réelle du HTH-6200 dans le conduit. Autant que possible, le trou dans le conduit de mesure du HTH-6200 doit être positionné près du centre du conduit. La sonde doit être installée de telle façon que le flux d’air dans le conduit passe librement dans le trou de mesure au bout de la sonde qui devrait être alignée de façon parallèle au flux... - Page 7 Rådets direktiv 73/23 och följande ändringar om elektrisk med kabelinföringen nedåt, eftersom det kan medföra att det ansamlas materiel avsett att användas inom vissa spänningsgränser. fukt i givaren (fig. 2). Det är viktigt att HTH-6200 monteras så att mäthålet placeras mitt i kanalen. Använda normer SS-EN 61000-6-2 och SS-EN 61000-6-3 Elektromagnetisk kompatibilitet.
- Page 8 0-100 % RH, og måleområdet for temperaturmålingen er -40 °C - +120 °C Feil plassering av HTH-6200 i Kontroller fysisk plassering av HTH-6200 i kanalen. Målehullet i spissen av HTH-6200 kanal må, om det er mulig, plasseres i midten av kanalen. Målehullet i spissen av føleren skal monteres slik at luftstrømmen i kanalen ledes uhindret igjennom målehullet, som...
- Page 9 HTH-6200 påvirkes ikke av monteringsstillingen, men må helst ikke oj@oj.dk · www.oj.dk monteres stående med kabelinnføringen ned, siden det kan medføre at det samler seg fukt i føleren (fig. 2). Det er viktig at HTH-6200 monteres slik at CE-MERKING målehullet er plassert i midten av kanalen.
- Page 10 Kontrollera den fysiska placeringen av HTH-6200 i kanalen. Mäthålet i spetsen av i kanalen HTH-6200 ska, om det är möjligt, placeras mitt i kanalen. Mäthålet i givarens spets ska monteras så att luftflödet i kanalen leds obehindrat genom mäthålet, som ska vara parallellt med luftflödet.
- Page 11 CE-MÆRKNING medføre, at der samler sig fugt i føleren (fig. 2). Det er vigtigt, at HTH-6200 OJ Electronics A/S erklærer under ansvar, at dette produkt opfylder Rådets monteres, så målehullet er placeret i midten af kanalen.
- Page 12 Fig. 4 Dimensioned drawing Tel. +45 73 12 13 14 Fax +45 73 12 13 13 oj@oj.dk · www.oj.dk Fig. 5 Dimensioned drawing The OJ trademark is a registered trademark belonging to OJ Electronics A/S · © 2013 OJ Electronics A/S...
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