Thies CLIMA Hygro-Thermo Transmitter-compact User manual

Hygro-ThermoTransmitter-compact
1.1005.54.780 / 781/ 782
Instruction for use
020727/08/13
THE WORLD OF WEATHER DATA - THE WORLD OF WEATHER DATA - THE WORLD OF WEATHER DATA
ADOLF THIES GmbH & Co. KG
Hauptstraße 76 37083 Göttingen Germany
Box 3536 + 3541 37025 Göttingen
Phone [phone] Fax [phone]
www.thiesclima.com [email protected]

Safety Instructions
• Before operating with or at the device/product, read through the operating instructions.
This manual contains instructions which should be followed on mounting, start-up, and operation.
A non-observance might cause:
- failure of important functions
- Endangering of persons by electrical or mechanical effect
- Damage to objects
• Mounting, electrical connection and wiring of the device/product must be carried out only by a qualified technician
who is familiar with and observes the engineering regulations, provisions and standards applicable in each case.
• Repairs and maintenance may only be carried out by trained staff or Adolf Thies GmbH & Co. KG. Only
components and spare parts supplied and/or recommended by Adolf Thies GmbH & Co. KG should be used for
repairs.
• Electrical devices/products must be mounted and wired only in voltage-free state.
• Adolf Thies GmbH & Co KG guarantees proper functioning of the device/products provided that no
modifications have been made to the mechanics, electronics or software, and that the following points are
observed:
• All information, warnings and instructions for use included in these operating instructions must be taken into
account and observed as this is essential to ensure trouble-free operation and a safe condition of the measuring
system / device / product.
• The device / product is designed for a specific application as described in these operating instructions.
• The device / product should be operated with the accessories and consumables supplied and/or recommended
by Adolf Thies GmbH & Co KG .
• Recommendation: As it is possible that each measuring system / device / product under certain conditions, and
in rare cases, may also output erroneous measuring values, it is recommended using redundant systems with
plausibility checks with security-relevant applications.
Environment
• As a longstanding manufacturer of sensors Adolf Thies GmbH & Co KG is committed to the
objectives of environmental protection and is therefore willing to take back all supplied products
governed by the provisions of "ElektroG" (German Electrical and Electronic Equipment Act)
and to perform environmentally compatible disposal and recycling. We are prepared to take
back all Thies products concerned free of charge if returned to Thies by our customers
carriage-paid.
• Make sure you retain packaging for storage or transport of products. Should packaging
however no longer be required, arrange for recycling as the packaging materials are designed
to be recycled.
Documentation
• © Copyright Adolf Thies GmbH & Co KG, Göttingen / Germany
• Although this operating instruction has been drawn up with due care, Adolf Thies GmbH & Co KG can accept
no liability whatsoever for any technical and typographical errors or omissions in this document that might
remain.
• We can accept no liability whatsoever for any losses arising from the information contained in this document.
• Subject to modification in terms of content.
• The device / product should not be passed on without the/these operating instructions.
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Contents
1Models available ........................................................................................................................ 3
2Application ................................................................................................................................. 4
3Mounting .................................................................................................................................... 4
4Connection................................................................................................................................. 5
4.1 Connector Pin Assignment.................................................................................................. 5
4.2 Cable Assignment ............................................................................................................... 5
5Maintenance .............................................................................................................................. 5
6Notes on sensors with MODBUS-RTU ...................................................................................... 6
6.1 Serial format and transfer rate............................................................................................. 6
6.2 Overview of available MODBUS registers........................................................................... 6
6.3 Configuration of MODBUS address .................................................................................... 7
6.4 Reading the measured values............................................................................................. 7
6.5 Use of internal termination................................................................................................... 8
7Address programming methods ................................................................................................. 8
7.1 In the test network ............................................................................................................... 8
7.2 In the operating network (remotely controlled) .................................................................... 9
8Technical Data......................................................................................................................... 10
9Accessories / spare part (optional) .......................................................................................... 11
10 EC-Declaration of Conformity............................................................................................... 12
1 Models available
Order-No. Measuring
Range Electrical Output Operating Voltage Sensor protective filter Construction / Connection
1.1005.54.780 0...100% r. F.
-40... +85°C
RS 485
MODBUS RTU
5...30V DC ZE20 - H-T-Transmitter
with plug and
mating plug
1.1005.54.780 0...100% r. F.
-40... +85°C
RS 485
MODBUS RTU
5...30V DC ZE20 - H-T-Transmitter
plug connection
- mating plug with
5 m cable and
wire end
1.1005.54.780 0...100% r. F.
-40... +85°C
RS 485
MODBUS RTU
5...30V DC ZE20 - H-T- Transmitter
plug connection
- mating plug with
10 m cable and
wire end
This hygro-thermo transmitter has a digital RS 485 output, and is suited for the data transmission
acc. to MODBUS RTU protocol.

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2 Application
The Hygro-Thermo Transmitters of our compact series are designed to measure relative humidity,
the temperature of the air and other non-aggressive gases.
The use of capacitive humidity sensors is a guarantee for:
• a high degree of long-term stability
• nearly linear characteristics
• good dynamic behaviour
• dewing stability
• low temperature coefficients
• low hysteresis
The hygro-thermo transmitter is equipped with a protective filter for the sensors.
Type: Membrane-filter with gauze ZE20 (order-no. 1.1005.54.901) for protection against
dust in case of field application.
Remark:
For filed work, it is advisable to use a „Weather and Thermal Radiation Shield“. It
is optionally available as accessory.
3 Mounting
For correct measurements, the Hygro-Thermo Transmitter should be mounted at a site in the room
which is representative of the climate within the room. The mounting position itself is arbitrary.
Mount the sensor such that water cannot penetrate the inside of the sensor. Dewing and sprinkling
water do not damage the sensor.
Moreover, please make sure to keep the operating voltages as well as a good recirculation
ventilation of the instrument. Deviations might lead to measurement errors (for example: due to
instrument warming).
Preferably, the sensor should be mounted vertically facing downwards to a wall (indoor application),
and should be mounted horizontally facing backwards in canals.

4 Connection
4.1 Connector Pin Assignment
Pin Description Function Postion of connections
at the sensor
1 reserved
2 D0/A/Data+ MODBUS RS485 Data+
3 D1/B/Data- MODBUS RS485 Data-
4 Vcc Supply voltage +
5 GND Supply voltage 0V
6 reserved
7 Termination Termination active, when Pin 3 and Pin 7
connected
6 1
5 2
4 3
4.2 Cable Assignment
Code
ring Lead color Description Function Lead color marking
2 Brown D0/A/Data+ MODBUS RS485 Data+
3 Black D1/B/Data- MODBUS RS485 Data-
4 Red Vcc Supply voltage +
5 Black GND Supply voltage 0V
6 Orange D0/A/Data+ MODBUS RS485 Data+
7 Black D1/B/Data- MODBUS RS485 Data-
-- Green/yellow shield
5 Maintenance
The Hygro-Thermo Transmitter is supplied already adjusted and its characteristics remain stable for
years.
Dust does not damage the humidity sensor but does influence the dynamic behaviour negatively. If
the instrument is very dirty, the sensor element can be cleaned or carefully rinsed in distilled water.
Make sure you do not touch the highly-sensitive sensor element.
Before cleaning the sensor elements please remove the protecting filter; it should be cleaned, as
well or should be replaced.
Attention:
The instrument housing with the electronics included should
be opened only in the factory.
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6 Notes on sensors with MODBUS-RTU
6.1 Serial format and transfer rate
The following parameters are applicable for data transfer via the RS-485 interface on the MODBUS
sensors
:
half-duplex with twin wires
19200 bit per second
8 data bit
no parity testing
1 stop bit
monitoring interval (recommended) > 1s
a maximum of 8 registers per query
6.2 Overview of available MODBUS registers
All registers can be read using the MODBUS function code “03“ (Read Holding Register) or the
MODBUS function code “04“ (Read Input Register). Table 1 shows all available registers for
MODBUS sensors:
16 bit register-no. format value
0000-0001 float (32bit) temperature in °C
0002 int (16bit) alarm code temperature
0003-0004 float (32bit) humidity in % r.h.
0005 int (16bit) alarm code humidity
0006 - 0007 long (32bit) serial number sensor
read-only
0205 int (16bit) MODBUS address read and writeable
Table 1: MODBUS Register
Alarmcode:
Temperature channel:
0 = no alarm, the temperature value is within
the limits
1 = temperature measurement range exceeded
2 = below temperature measurement range
3 = no sensor signal
4 = short circuit at PT1000 (resistance < 500 Ω)
Humidity channel:
0 = no alarm, the humidity value is within the
limits
1 = humidity meas. range exceeded (=100% r.h.)
2 = below humidity meas. range (= 0% r.h.)
3 = no sensor signal
4 = humidity sensor defective
Table 2: alarm codes humidity and temperature

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6.3 Configuration of MODBUS address
Every sensor has its own MODBUS address which can be changed through the MODBUS protocol.
With write access to the register „0205“ (see table 1), you can change the MODBUS address of the
respective sensor.
The write command to the address register of the respective sensor presumes a valid target
address in the MODBUS network. Please make sure at this point that the newly
assigned MODBUS
address is not already taken. If the current target address of the sensor is unknown, the MODBUS
sensors can always be activated using the MODBUS address 255.
For this reason, the address 255 is excluded from the regular address-allocation in the
network with the application of these sensors. With address 255 all sensors of this type are
activated at the same time.
The only exception to this rule is when you are operating a single sensor per network segment, for
example during mainte- nance via the service interface, starting up a test network or as a
permanent single sensor solution. In figure 1 the structure of a MODBUS frame is given with the
write command to change the MODBUS address:
MODBUS
address
Function
code Register address Argument (new
MODBUS address)
CRC Check-sum
8 bit 8 bit 16 bit 16 bit 16 bit
e.
g
. 255 6 205 1-254
(
255 reserved
)
CRC Check-sum
Figure 1: Allocation of a new MODBUS address
6.4 Reading the measured values
The registers of the MODBUS sensors can be read using the MODBUS function code “03“ (Read
Holding Register) or the MODBUS function code “04“ (Read Input Register). The range for the
register to be read can be specified in the argument of both function codes. All registers between
the start and stop address of the argument, including the registers with both addresses themselves,
are read. This means that all measured values with their alarm registers and the serial number
(address range 0000 to 0007) are read through information retrieval. If the start and stop address
are identical, then only one register with the corresponding address is read.
In the following example, the first two MODBUS registers (0000-0001) are read which together
represent the measured value for the temperature in Float32 format. The MODBUS address of the
sensor has been set arbitrarily at 119.
MODBUS
address
Function code Start address
register
Stop
address register CRC
Checksum
8 bit 8 bit 16 bit 16 bit 16 bit
119 3 00 00 00 01 CRC
Checksumme
Figure 2: Reading the measured values

6.5 Use of internal termination
The MODBUS sensors have internal DC termination with a resistance value of 135 Ohm. With the
sensors the termination can be activated by bridging Pin 3 and Pin 7 in the threaded bush of the
connecting cable.
Termination is recommended for the following applications:
- Single sensor operation with medium to long cable lengths or
- Operating the network with several sensors using the following parameters
- Pull resistances on cables D0 and D1 greater than 750 Ohm (in the master)
- Number of sensors in the network segment smaller than 10 with poll intervals > 1s
in total network.
To guarantee the accuracy of the measured values, the internal DC termination of sensors is not
recommended for other applications. In this case, the termination resistance needs to be spatially
separated due to heat build-up.
Note:
The interrogation frequency of all sensors in the network is relevant to termination resistance heat
build-up. For short cable lengths (up to 20m), termination can be dispensed with.
7 Address programming methods
7.1 In the test network
- Recommended during incoming goods inspection
- requires PC with RS-485 interface and MODBUS master software (e.g.: MODBUS Poll)
or a MODBUS master system.
PC
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7.2 In the operating network (remotely controlled)
- In the case of retrospective changes to the operating network
- Assignment of address through the MODBUS master used by sending
a „write“ command to the address register 205 in the sensor (refer to section
„Configuration of MODBUS address“)
MODBUS Master
MODBUS Master
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8 Technical Data
Humidity
Measuring element Capacitive
Measuring range 0...100 % rel. humidity
Accuracy
@ meas. range 10...90% rel.F. bei 23 °C
@ meas. range <10% rel.F. >90% rel.F.
± 1,5 % rel. humidity
± 2 % rel. humidity
Response Time (T 90) <20 s (at v = 1,5 m/s) w/o filter
Response Time (T 90) <1,5 min. (at v = 1,5 m/s) with Membrane filter ZE 20
Response Time (T 90) <1,5 min. (at v = 1,5 m/s) with Sinter filter ZE 21
Temperature
Measuring element Pt 1000 Class B, 1/3 DIN tolerance
Measuring range -40...+85°C
Accuracy @ 23°C ± 0,2 K
Response time (T 90) <20 s (at v = 1,5 m/s) w/o filter
Response time (T 90) <1,5 min. (at v = 1,5 m/s) with Membrane filter ZE 20
Response time (T 90) <1,5 min. (at v = 1,5 m/s) with Sinter filter ZE 21
Additional Specifications
Ambient temperature -40...+85°C
Degree of protection sensor IP 30
Degree of protection sensor with filter IP 54
Degree of protection electronics IP 67
Operating voltage 5...30 V DC
Current requirement Approx. < 5 mA
Dimension to model 1.1005.54.780
Diameter 20 mm
Length w/o plug 126 mm
Length with plug Approx. 145 mm

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9 Accessories / spare part (optional)
Weather and Thermal Radiation
Shield
The use of the Weather and Thermal
Radiation Shield in an appropriate
combination with suitable temperature
and humidity sensors reduces to a
minimum the possibility of influencing
the data in a negative manner by
radiation, precipitation or damage.
More exactly measuring results are
achieved by using the ventilated
Weather and Thermal Radiation Shield
(mod. 1.1025.55.10x with ventilation).
The ventilation reduces those errors
which might occur during the
measurements in a weather hut caused
by the so-called „proper climate“.
1.1025.55.00x
.10x
.xx0
.xx1
w/o ventilator
with ventilator 12 V DC / 2 W , incl.
5 m cable
for mast tube mounting ∅30 - 50 mm
for mast tube mounting ∅55 – 60 mm
dimensions: ∅120 x 290 mm
Membrane-filter with gauze ZE20
The filter serves for protecting the
sensor elements of the Hygro-thermo
transmitter against dust in case of field
application.
1.1005.54.901 Material: PTFE / stainless steel
Dimensions: ∅20 x 25 mm

10 EC-Declaration of Conformity
Document-No.: 000702 Month: 08 Year: 13
Manufacturer: A D O L F T H I E S G m b H & C o. K G
Hauptstr. 76
D-37083 Göttingen
Tel.: [phone]
Fax: [phone]
email: [email protected]
Description of Product: Hygro – Thermo Transmitter Compact
Article No. 1.1005.49.960 1.1005.51.600
1.1005.54.000 1.1005.54.150 1.1005.54.160 1.1005.54.161 1.1005.54.173
1.1005.54.241 1.1005.54.300 1.1005.54.441 1.1005.54.448 1.1005.54.460
1.1005.54.461 1.1005.54.700 1.1005.54.701 1.1005.54.703 1.1005.54.741
1.1005.54.761 1.1005.54.773 1.1005.54.780 1.1005.54.781 1.1005.54.782
1.1005.54.800 1.1005.54.941 1.1005.54.961 1.1005.64.000 1.1005.64.161
1.1005.64.701 1.1005.64.241
specified technical data in the document: 020874/06/13; 021659/04/11; 021660/04/11; 021661/04/11
021687/01/12; 021691/01/12; 020726/08/13
The indicated products correspond to the essential requirement of the following European Directives and Regulations:
2004/108/EC DIRECTIVE 2004/108/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL
of 15 December 2004 on the approximation of the laws of the Member States relating to
electromagnetic compatibility and repealing Directive 89/336/EEC
2006/95/EC DIRECTIVE 2006/95/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL
of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical
equipment designed for use within certain voltage limits
552/2004/EC Regulation (EC) No 552/2004 of the European Parliament and the Council of 10 March 2004
on the interoperability of the European Air Traffic Management network (the interoperability
Regulation)
The indicated products comply with the regulations of the directives. This is proved by the compliance with the following
standards:
Reference number Specification
IEC 61000-6-2: 2005 Electromagnetic compatibility
Immunity for industrial environment
IEC 61000-6-3: 2006 Electromagnetic compatibility
Emission standard for residential, commercial and light industrial environments
IEC 61010-1: 2010 Safety requirements for electrical equipment for measurement, control, and
laboratory use. Part 1: General requirements
Place: Göttingen Date: 13.08.2013
This declaration certificates the compliance with the mentioned directives, however does not include any warranty of characteristics.
Please pay attention to the security advises of the provided instructions for use.
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ADOLF THIES GmbH & Co. KG
Hauptstraße 76 37083 Göttingen Germany
P.O. Box 3536 + 3541 37025 Göttingen
Phone [phone] Fax [phone]
www.thiesclima.com [email protected]
- Alterations reserved-
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