Setra Systems SRH200 Bedienungsanleitung
Model SRH200
Operating Instructions
Setra Systems, Inc.
159 Swanson Road, Boxborough, MA 01719
800.257.3872 • www.setra.com
Contents
1.0 General information .......................................................................................................3
2.0 Caution..............................................................................................................................3
3.0 Connection diagrams......................................................................................................3
4.0 LED indication...................................................................................................................4
5.0 Scope of supply................................................................................................................4
6.0 BACnet or modbus setup...............................................................................................5
6.1 BACnet address using address switch ...........................................................5
6.2 BACnet address using software .......................................................................6
6.3 Modbus address using software .....................................................................8
6.4 Modbus address using address switch ........................................................10
6.5 Modbus setup ....................................................................................................11
7.0 Technical data...............................................................................................................12
8.0 Setup and adjustment ..................................................................................................13
9.0 Maintenance..................................................................................................................14
9.1 Humidity calibration and adjustment ............................................................14
9.2 Temperature calibration and adjustment ......................................................14
9.3 When employed in dusty, polluted environment .........................................14
10.0 Accessories ...............................................................................................................15
11.0 Returning products for repair or replacement......................................................16
11.1 Calibration services ........................................................................................16
12.0 Limited warranty and limitation of repair ...............................................................17
3
3.0 Connection Diagrams
SRH200 - Analog volts
SRH200 - Analog milliamps
SRH200 - Digital
Bus termination resistor 120 Ω (jumper)
DO NOT CONNECT!
1.0 General information
The Setra Systems Model SRH200 transmitter, available for wall or duct mounting, is designed
for the measurement of humidity and temperature in HVAC applications.
For use in special applications, please contact Setra Systems.
2.0 Caution
• For accurate measurement, it is essential that the temperature of the sensing probe and the
sensing head is same as the temperature of the air to measure. Avoid mounting the SRH200
transmitter in a way which creates temperature gradients along the probe.
• The transmitter and the sensing head should not be exposed to extreme mechanical stress.
• The transmitter must be operated with the lter cap on at all times. DO NOT touch the
sensors inside the sensing head.
4
4.0 LED indication
Green LED Blue LED
On Everything okay
Setra Product Conguration Adapter
(SETRAPCA1) is powered, no
communication in progress
Flashing
Main board does not recognize the
measurement electronics inside the
sensing probe
PCA powered, communication in
progress
Off No power supply or main board failure PCA not connected to the SRH200
Model
SRH200 wall mount
(Type A)
SRH200 Duct mount
(Type B)
SRH200 Transmitter according to
ordering guide
Cable tting
Mounting kit
Mounting flange
Calibration & inspection certicate
according to DIN EN10204 - 3.1
Quick Guide -
SRH200 RS485 Setup included with all BACnet & Modus units
5.0 Scope of supply
5
6.0 BACnet or Modbus setup
6.1 Setup BACnet address using the address switch
Remove the unit’s faceplate. You will see an address switch (pictured below). If you wish to set
the address of the unit using this switch, you must rst identify and make note of an available
address found on your network.
SRH200 Default=2 Permitted=0...127 (BACnet)
SRH300 Default=1 Permitted=0...127 (BACnet)
Before connecting the device to your network, set the address you wish to have on the switch
following the above format and table below.
Note: You will see from the table there are 8 positions. For this device, the 8th position (or 8th
bit) is ignored.
For Example: ID 127=0111111
BACnet PICS for this unit are available for download at www.setra.com. This unit’s ID as well
as many other properties are also read/writable from your BACnet console.
6
6.2 Sitting BACnet address using the software
Remove the unit’s faceplate. You will see an address switch (pictured below). If you wish to
set the address of the unit using the Setra product conguration software, verify all these
switches are set to “0”.
Prior to adding unit to your network, power up the unit according to diagram on page 3. Now
connect the Setra PCA adapter to the unit and to your laptop.
Start the Setra product conguration software. The software should automatically identify
your unit after a few seconds and begin graphing and displaying sensor data.
7
Click on the communication settings found on left menu. The screen below will be displayed.
Here you can set band rate, data, parity, and stop bits. In the bus address cell, you can enter
the following ranges.
SRH200 Default=2 Permitted=0...127 (BACnet)
SRH300 Default=1 Permitted=0...127 (BACnet)
Note: Regardless of whether you are setting the address in the software or by using the
address switch the following settings are recommended.
38400/8/NONE/1
8
6.3 Setting Modbus address using the software
Remove the unit’s faceplate. You will see an address switch (pictured below). If you wish to
set the address of the unit using the Setra product conguration software, verify all these
switches are set to “0”.
Prior to adding unit to your network, power up the unit according to connection diagram on
page 3. Now connect the Setra PCA adapter to the unit and to your laptop.
Start the Setra product conguration software. The software should automatically identify
your unit after a few seconds and begin graphing and displaying sensor data.
9
Click on the communication settings found on left menu. The screen below will be display.
Here you can set baud rate, data, parity and stop bits.
In the Bus address cell, you can enter the following ranges.
SRH200 Default=245 Permitted=0...247 (modbus)
SRH300 Default=242 Permitted=0...247 (modbus)
10
6.4 Setting Modbus address using the address switch
Remove the unit’s faceplate. You will see an address switch (pictured below). If you wish to set
the address of the unit using this switch, you must rst identify and make note of an available
address found on your network.
SRH200 Default=245 Permitted=1...247 (Modbus)
SRH300 Default=242 Permitted=1...247 (Modbus)
Before connecting the device to your network, set the address you wish to have on the switch
following the above format and table below.
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