W&T 57113 Manual

Web-thermometer

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Manual

Installation, Startup and Applications

Web-Thermometer

valid for models:

#57113

Web-Thermo-Hygrobarometer

#57114

Web-Thermometer NTC

#57115

Web-Thermometer Pt100/Pt1000

#57120

Web-Thermo-Hygrometer

#57171

Web-Thermometer UV 1x

#57172

Web-Thermometer UV 2x

Release 1.74 05/2025

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Summary of Contents for W&T 57113

Page 1 Manual Installation, Startup and Applications Web-Thermometer valid for models: #57113 Web-Thermo-Hygrobarometer #57114 Web-Thermometer NTC #57115 Web-Thermometer Pt100/Pt1000 #57120 Web-Thermo-Hygrometer #57171 Web-Thermometer UV 1x #57172 Web-Thermometer UV 2x Release 1.74 05/2025...
Page 2 © 05/2025 by Wiesemann und Theis GmbH Microsoft and Windows are registered trademarks of Microsoft Corporation. Errors and changes reserved: As we may make mistakes, none of our statements may be used without verificati- on. Please report any errors or ambiguities to us so that we can identify and correct them as quickly as possible.
Page 3 Intended use ....................... 9 Electrical safety ....................9 3 Quick start / Commissioning ..........11 3.1 Connecting the sensor (#57113, #57114, #57115, #57120) ....11 3.2 Connecting the PT100/PT1000 sensor (#57171, 57172) ......12 3.3 Network connection ................... 12 3.4 LED indicators .................... 12 4 Power supply ..............
Page 4 7.1 NTC sensor measurement input (#57114) ..........23 7.2 Pt100/1000 sensor measurement input (#57115) ........23 7.3 Combination sensor measurement input (#57113, #57120) ....23 8 Online measurement storage in the W&T Cloud ....25 8.1 Automatic connection ................25 8.2 Create user account ...................
Page 5 Content 12.7 Socket-API ....................52 12.8 RSS ......................52 12.9 OPC DA ..................... 53 12.10 OPC UA ....................53 12.12 FTP ......................57 13 Alarms/messages ............58 14 Diagnosis ................ 60 15 Device information ............61 16 Maintenance ..............62 16.1 Reboot device...................
Page 6 20 Technical data ..............77 20.1 Technical data for items 57114 and 57115 ..........77 20.2 Technical data for items 57113 and 57120 ..........78 20.3 Technical data for items 57171 and 57172 ..........79 21 Battery replacement and disposal ........80...
Page 7 Legal notices 1. Legal notices Warning notice concept These instructions contain information that must be observed for your personal safety and to prevent damage to property. The information is highlighted by a warning triangle. Depending on the level of danger, the warnings are displayed in descending order as follows: 1DANGER indicates a hazard that will result in death or serious injury if appropriate...
Page 8 Legal notices safety and warning instructions contained therein. Qualified personnel are capable of recognizing risks and avoiding potential hazards when handling the products described due to their training and experience. Disposal Electronic devices must not be disposed of with household waste, but must be dis- posed of properly as electronic waste.
Page 9 Safety instructions 2. Safety instructions General information These instructions are intended for the installer of the web thermometer described in the manual and must be read and understood before work begins. The devices may only be installed and commissioned by qualified personnel. Intended use 1DANGER The web thermometers from Wiesemann &...
Page 10 Safety instructions During installation, ensure that no loose wires protrude through the ventilation slots of the web thermometer into the interior of the housing. Ensure that no individual wires protrude from the stranded cable, that the entire stranded cable is located in the terminal, and that the screws of the connection terminals are tightened securely.
Page 11 The web thermometers can also be used in networks without PoE supply. In this case, an external power supply must be used via the screw terminals, as described in the Power supply chapter. No further configuration or settings are necessary. 3.1 Connecting the sensor (#57113, #57114, #57115, #57120) Warning IO-Port...
Page 12 Commissioning 3.2 Connecting the PT100/PT1000 sensor (#57171, 57172) Sensor 1 Sensor 1 Sensor 2 12-48V DC 12-48V DC #57172 #57171 max. 60mA max. 60mA Power Power Status Status Error Error Reset Reset Warning Warning Web-Thermometer UV 2x Web-Thermometer UV 1x Pt100 / Pt1000 Pt100 / Pt1000 3.3 Network connection...
Page 13 Commissioning Status- LED Fast continuous flashing = booting, no IP Fast continuous flashing (approx. 3x/s) indicates that the device is booting and/or has not yet been assigned an IP address. Please assign an IP address to the device, e.g. using WuTility. Slow continuous flashing = ready for operation Slow continuous flashing (approx.
Page 14 Commissioning Speed Link/Activity Speed (yellow) OFF: When the Link/Activity LED is lit/flashing, there is a link to a device with 10 Mbit/s (10BaseT). ON: When the Link LED is lit/flashing, there is a link to a device with 100 Mbit/s (100BaseT).
Page 15 Commissioning 4 Power supply The web thermometer can be powered either via PoE or an external power supply. The simultaneous connection of an external power supply and a PoE infra- structure is not permitted. The power consumption can be found in the technical data in the appendix. 4.1 PoE supply In PoE infrastructures (Power-over-Ethernet, IEEE802.3af), power is supplied via the network cabling.
Page 16 Commissioning 5 IP Configuration 5.1 IP configuration via WuTility WuTility is the central inventory and management tool for all W&T network devices. In addition to convenient IP parameter assignment, WuTility offers quick access to device configuration, the option to perform firmware updates, manage configuration profiles, and more.
Page 17 Commissioning Step 1: Start the assignment dialog After starting, WuTility automatically searches the local network for connected W&T network devices. The search process can be repeated as often as desired by clicking the Scan button. Identify the web thermometer in the inventory list using its MAC address. For initial installations, the IP address is 0.0.0.0.
Page 18 Commissioning Step 2: Assigning the IP parameters The static option allows you to assign fixed IP parameters while disabling the DHCP protocol. Enter the desired values for the IP address, subnet mask, and gateway ad- dress in the corresponding input fields. The DHCP option activates the DHCP pro- tocol in the web thermometer and operation with a static IP address is no longer possible (detailed information on IP configuration via DHCP protocol).
Page 19 Commissioning • Management tool WuTility Select the desired web thermometer from the device list and click the IP address button. In the following dialog, activate the DHCP option and then click Continue. • WBM configuration The DHCP protocol can be activated in the menu branch Basic settings -> Net- work ->...
Page 20 Commissioning 5.3 IP configuration using the ARP command Requirements The IP address can only be assigned using a static entry in the ARP cache of the computer if the current IP address is 0.0.0.0 (= factory setting). If the web thermo- meter has any other value, this access is disabled.
Page 21 Commissioning Command line under UNIX/Linux: arp -s 172.16.231.10 00:C0:3D:00:12:FF In Windows environments, IP addresses must be entered without leading zeros. Otherwise, the system will interpret the entry incorrectly and assign an incorrect IP address to the web thermometer. Starting with Windows Vista, the cmd.exe com- mand prompt required to call the ARP command must be started with administrator rights.
Page 22 Commissioning 6 Ethernet connection The web thermometer has an IEEE 802.3 compatible network connection. 6.1 Link status The link status is indicated by the two LEDs integrated in the RJ45 socket. • Link/Activity (green) ON indicates a valid link to a hub/switch port. The LED flashes when data is being transmitted.
Page 23 PT100/PT1000 measuring sensor to the 57715 de- vice or extend the cable, the pin assignment is as follows: 7.3 Combination sensor measurement input (#57113, #57120) The supplied combination sensor uses digital measurement transmission. It can be extended to a total length of 20 m (2 m sensor cable + 18 m extension).
Page 24 Commissioning...
Page 25 Commissioning 8 Online measurement storage in the W&T Cloud With its cloud service, W&T offers a comprehensive solution that, in addition to long- term documentation of measurement data in the internal data logger, also enables data to be backed up in online storage. Measurement data is transmitted directly from the measuring point to the cloud and is thus available online.
Page 26 Commissioning 8.4 Assign measurement data from the device After creating a cloud user account, open the configuration menu of your device and log in as an administrator user. Navigate to the Communication channels -> Cloud page and enter your user data for cloud access. After clicking on the “Bind” button, all measurement data from this device will be stored in your user account from this point onwards.
Page 27 Basic settings 9 Configuration via web-based management Further configuration of the device is carried out via the device‘s web page. To ac- cess this, enter the assigned IP address in the address bar of your web browser: http://<IP address> 9.1 Home The following pages are also available:...
Page 28 Basic settings 9.2 Visualisierung This page shows you a graphical display of the stored measured values. The controls displayed allow you to temporarily adjust this display while you are on this page. You can make permanent adjustments via the configuration menu (see Web pages ->...
Page 29 Basic settings 9.3 Meine Webseite This page can be customized or replaced and serves as an example. Here you also have the opportunity to take a look at the device‘s data logger.
Page 30 Basic settings 9.4 Log in The login dialog gives you access to the device configuration. The device distinguis- hes between an administrator and a standard user with different access rights. No password is configured in the device initially. Select the administrator user and click “Login.”...
Page 31 Basic settings 10 Basic settings In this section of the configuration, you can make all the settings required for the various operating modes.
Page 32 Basic settings 10 Network Set the network base parameters here. You can choose between automatic address assignment via DHCP and manual configuration of the parameters. If you want to configure communication parameters with names instead of IP addresses in the further configuration, you can configure additional DNS servers here, in addition to the DNS server assigned via DHCP, if applicable.
Page 33 Basic settings Create a json file, e.g., “senscomp.json,” in a text editor: {„Sensor1“: {„x1“:“y1“}, {„x2“:“y2“} {„x3“:“y3“} „Sensor2“: {„x1“:“y1“}, {„x2“:“y2“} {„x3“:“y3“} The keyword is “Sensor” followed by the sensor number. The order corresponds to the order of the configuration parameters specified on the website. “x1-xx”...
Page 34 Basic settings 10.2 Date/Time The device time is necessary to obtain plausible time stamps for storing the measu- red values. Enter the time manually or use the convenient automatic time synchronization fea- ture with a time server. Daylight saving time can also be enabled or disabled here. 10.3 Language/Info Here you can configure the default language of the device.
Page 35 Basic settings If you assign an administrator password, it must be stored when changing the IP address via WuTility or firmware updates.
Page 36 Basic settings 10.6 Certificates HTTPS is based on the TLS protocol, which encrypts communication and authenti- cates communication partners using certificates. The device is identified ex works with a self-signed default certificate, which is ge- nerally considered a security risk by browsers. If the application requires secure au- thentication, the device must be equipped with an individual certificate signed by a trusted certification authority.
Page 37 Basic settings vate key associated with the CSR. Upload certificate/Upload certificate chain A CSR that has been generated and downloaded can be loaded onto the device as a certificate after it has been signed by an external certification authority. If a certifi- cate chain belonging to the certificate is not already part of the certificate file, it can be uploaded separately.
Page 38 <w&t_tags=t1> Displays the current temperature (°C) of the first temperature sensor. If there are multiple sensors, this index is numbered consecutively. <w&t_tags=h1> Displays the current relative humidity (%) on models 57113 and 57120.
Page 39 <w&t_tags=pa> Displays the absolute air pressure (hPa) on model 57113. <w&t_tags=pNN> Displays the calculated air pressure (hPa) above normal zero for model 57113 (me- teorological value). <w&t_tags=al> Indicates the set height of the device‘s installation location on model 57113. (m) <w&t_tags=time>...
Page 40 Basic settings Inserts the name of sensor x into the page. <w&t_tags=device_name> Inserts the assigned device name. <w&t_tags=device_text> Inserts the freely configurable descriptive text for the device. <w&t_tags=location> <w&t_tags=contact> Inserts the respective text modules, which can be configured under Language/Info. This configuration page also contains the parameters for customizing the visualiza- tion.
Page 41 Communication paths 12 Communication paths This device can communicate via various network protocols and services. Configure all necessary parameters here.
Page 42 Communication paths 12.1 Mail The email function allows you to send messages to one or more email recipients. Configure the access parameters for your mail server here. 12.2 MQTT After activating MQTT and configuring it in the menu branch Communication chan- nels »...
Page 43 Communication paths To exchange data via REST, access must first be enabled via Communication chan- nels » Rest. If you want to protect REST access against unauthorized access, you can activate digest authentication. Requests must then be made as user “Admin” with the admi- nistrator password or as user “User”...
Page 44 Communication paths „name“: „rel. Feuchte“, „number“: 1, „unit“: „%“, „value“: 35.4 „system“: { „time“: „2017-01-01,12:30:25“, „diagnosis“: [{ „time“: „19.01.2017 12:30:25“, „msg“: „Gerätestatus: OK“ „diagarchive“: „time“: „19.01.2017 12:30:25“, „msg“: „Gerätestatus: OK“ To query only individual areas or points, the request can be formulated in more de- tail: http://<ip-adresse>/rest/json/iostate This causes the web thermometer to return the status of all sensors:...
Page 45 Communication paths „unit“: „%“, „value“: 35.2 With http://<ip-adresse>/rest/json/iostate/sensor/0 the status of the first sensor can be queried specifically. „iostate“: „sensor“: [{ „name“: „Temperatur“, „number“: 0, „unit“: „ °C“, „value“: 23.2 12.4 Cloud With its cloud service, W&T offers a comprehensive solution that, in addition to long- term documentation of measurement data in the internal data logger, also enables data to be backed up in online storage.
Page 46 Communication paths such as cameras, to query measured values, for example. Enter the complete URL with all parameters expected by the receiving device as the HTTP request. For example: http://<IP/Hostname>/single 12.6 Modbus-TCP If this function is activated and a communication port is configured (default: 502), the device can be accessed using a Modbus TCP client.
Page 47 Communication paths When reading data (memory areas) that have not been defined for the device, the device returns “0”. The Modbus data packets always consist of a header, the function code, the start address, and other parameters or registers. The values are output in 1/10°C (or 1/10%rH or 1/10hPa). The MSB of the WORDS or DWORDS determines whether the value is positive (0) or negative (1).
Page 48 Communication paths Unit identifier Always 0x01 for Modbus TCP Function code The function code determines how the Modbus memory of the web thermometer is accessed. Function Code 0x03 Read Holding Registers Function code 0x03 is intended for reading multiple registers (16-bit values). Depen- ding on the start address used, FC 0x03 can be used to query the values of various measurement inputs on the Web Thermometer.
Page 49 Communication paths 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 High Byte Low Byte Transaction ID 1. Byte 2. Byte 16 Bit / Word 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 High Byte Low Byte Protocol ID...
Page 50 Communication paths Function Code 0x06 Write Single Register Function code 0x06 is intended for setting any register (from address 0x7000). 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 High Byte Low Byte Transaction ID 1.
Page 51 Communication paths 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 High Byte Low Byte Transaction ID 1. Byte 2. Byte 16 Bit / Word 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 High Byte Low Byte Protocol ID...
Page 52 Communication paths When writing to the 32-bit area of the web thermometer (from address 0x7000), two 16-bit registers must be written for every 32-bit value, starting with the highest byte of the 32-bit value. The web thermometer responds with a data packet with the following structure: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 High Byte Low Byte...
Page 53 Communication paths 12.9 OPC DA The web thermometer is preset for OPC DA operation at the factory. If you want to use OPC DA, you only need to activate the Web API function under Communication paths. The W&T OPC server must be installed so that your OPC DA client can communicate with the web thermometer.
Page 54 Communication paths • Sign & Encrypt Security guidelines: Basic128 - RSA15 Basic265 Basic265-SHA256 AES128-SHA256 RsaOaep Also configure a UPC UA user name and password. This is not necessary if you select “No authentication”. The device provides you with the variable “EURange” for each sensor. With the help of this variable, you can assign preconfigured min.
Page 55 Communication paths Historizing The device supports historizing via OPC UA, i.e., in addition to the current measured value, the measured values stored in the device can be retrieved. The device can process four parallel OPC UA connections. Customer-specific numbering of NodeIDs The NodeIDs configured at the factory for the OPC UA endpoints can be changed to suit customer requirements.
Page 56 Communication paths You will receive a file named “nodecfg.json,” which you can open in a text editor. This file contains the preconfigured NodeID in JSON format, one empty entry for al- ternative numbering, and the display name of the OPC UA node, named with the let- ter “T,”...
Page 57 Communication paths The device can be integrated into your existing automation system via SNMP or Sys- log. Use the corresponding OIDs to query device and sensor data, or send messages via SNMP trap or Syslog. A MIB can be downloaded directly from the device at http://<ip-address>/mib.zip.
Page 58 Alarms and messages 13 Alarms/messages Notifications keep you up to date via e-mail or SNMP trap when limit values are exceeded or not reached. Select the desired trigger here and configure the desired notification type. You can configure up to 12 different notifications. Via the button a new message is generated.
Page 59 <H1> <h1> Humidity: Displays the current relative humidity (#57113, #57120,). <AH> <ah> Absolute humidity: Displays the current absolute humidity (#57113, #57120). <RC> <rc> Rate of change: Displays the rate of change over the last 5 minutes. <PA> <pa> Absolute air pressure: Shows the absolute air pressure (#57713).
Page 60 Diagnosis 14 Diagnosis Here you will find all runtime error messages generated by the device. Errors that have occurred but are no longer relevant can be found in the diagnosis archive. Errors that occur during the entry of parameters do not appear on this page, but are displayed directly on the parameter.
Page 61 Device information 15 Device information Here you will find descriptive information about your device and manufacturer de- tails. You can change the content of this information in the basic settings under Language/Info.
Page 62 Maintenance 16 Maintenance 16.1 Reboot device The device will restart and all network connections will be reset. 16.2 Restore device The device is reset to factory settings. All configuration parameters and passwords are deleted. After the reset, you must start again with assigning IP addresses. 16.3 Save configuration After clicking on the download button, a file containing the entire configuration of the device will be downloaded.
Page 63 Single query of measured values 17 Single query of measured values 17.1 Query via TCP/IP socket API It is possible to manually query the current measured values in CSV format (comma- separated data) via a socket connection. This function is used to query individual data without using the web interface.
Page 64 Single query of measured values Example: http://<ip-adresse>/thermo.csv?start=01012010T123000&end=30032010T200000&D Tb=3& The above printout generates a CSV file containing the measurement data from Ja- nuary 1, 2010, 12:30 p.m. to March 30, 2010, 8:00 p.m. in 1-minute intervals. To query the individual, current measured value, send: GET /Single1 for the first measuring channel.
Page 65 Single query of measured values The paths for the different model variants are as follows: #57113 Web-Thermo-Hygrobarometer: 1.3.6.1.4.1.5040.1.2.37..#57114 Web-Thermometer NTC: 1.3.6.1.4.1.5040.1.2.38..#57115/57171 Web-Thermometer Pt100/Pt1000, Web-Thermometer UV 1x 1.3.6.1.4.1.5040.1.2.39..#57120 Web-Thermo-Hygrometer 1.3.6.1.4.1.5040.1.2.42..#57172 Web-Thermometer UV 2x 1.3.6.1.4.1.5040.1.2.43..You can access the sensors via the following path: <IP address>...
Page 66 Single query of measured values A MIB for integration into management applications is available for download on the device‘s data sheet page on the WuT homepage http://www.wut.de, or in the device itself under <ip address>/mib.zip. If you want to change settings in the device via SNMP (IP address, subnet mask, etc.), you must first start a session on the device using your SNMP manager.
Page 67 Single query of measured values Opening an SNMP session takes precedence over an HTTP login. This means that a user with operator or administrator rights loses browser ac- cess as soon as an SNMP session is opened. The description of the individual SNMP variables, OIDs, etc. can be found in the Pri- vate MIB.
Page 68 Firmware update 18 Firmware update The operating software of the Web Thermometer is constantly being developed. The following chapter therefore describes the procedure for uploading the firmware. . Where can I get the latest firmware? . Firmware update via the network under Windows 18.1 Where can I get the latest firmware? The latest firmware, including the available update tools and a revision list, is publis- hed on our website at the following address:...
Page 69 Firmware update Never interrupt the update process yourself by disconnecting the power supply or pressing the reset button, if available. The web thermometer will be inoperab- le after an incomplete update. Never mix files with different version numbers in the file name. This will cause the device to malfunction.
Page 70 Security information 19 Security information The following sections contain information and recommendations relevant to IT security for commissioning, configuration, operation, and maintenance of the Web Thermometer. 19.1 Function and typical application Wiesemann & Theis web thermometers are devices for temperature and climate monitoring via a network.
Page 71 Security information - Device shutdown (removal of power supply, etc.) and loss of all connections to communication partners. 19.4 Commissioning The commissioning of the Web Thermometer is divided into the web configuration and the subsequent assignment of the IP address (DHCP, WuTility), as well as the subsequent further configuration via Web Based Management.
Page 72 Security information 19.8 Operation and configuration All access points and communication channels are disabled ex works, with the exception of browser access. We recommend only enabling the communication channels and services that are actually required for operation. The following table provides an overview of the available communication channels. Wutility inventory 8513 dynamic...
Page 73 Security information OPC UA TCP-Server 4840 dynamic SNMP V1 UDP-Peer dynamic SNMP V2 UDP-Peer dynamic SNMP V3 UDP-Peer dynamic SNMP-Trap UDP-Peer SYSLOG UDP-Peer dynamic FTP control connection TCP-Client dynamic FTP data connection (active) TCP-Server dynamic dynamic FTP data connection (passive) TCP-Client dynamic dynamic...
Page 74 Security information TLS-encrypted communication is possible in the following operating modes: • HTTPS (browser) • HTTPS (web API) • HTTPS (REST) • MQTT (SMQTT) • Mail delivery • OPC UA The computationally intensive TLS encryption functions can affect data transfer la- tencies.
Page 75 Security information with common malware existing for these systems is therefore not possible. The firmware is uploaded via TFTP (UDP) and the system password is transmitted in plain text on the network side. In unsecure networks or in environments with in- creased security requirements, additional external measures are therefore neces- sary (e.g., VPN).
Page 76 Emergency acces and factory settings 19.9 Emergency access and factory settings Warning Network IO-Port Sensor 1 12-48V DC #57171 max. 60mA Power Status Error Reset Warning Web-Thermometer UV 1x Pt100 / Pt1000 The reset button, which is recessed in the device, is used for emergency access. Delete password Press the reset button recessed into the front of the web thermometer 8 times with a pointed object.
Page 77 Technical data 20 Technical data 20.1 Technical data for items 57114 and 57115 Network: 10/100BaseT autosensing Supply voltage Power over Ethernet or 12-48V DC (+/-10%) via screw terminal Measuring unit 57714 Sensor NTC 10k Measuring range -45°C...75°C Resolution 1/10°C Measurement error ±0,3°C, ±5,1% Storage frequency 15, 30 sec, 1, 5, 15, 60 min...
Page 78 Technical data 20.2 Technical data for items 57113 and 57120 Thermo-hygro sensor: I2C connector Air pressure sensor (57113 only) Network: 10/100BaseT autosensing Supply voltage Power over Ethernet or 12-48V DC (+/-10%) via screw terminal Measuring unit Measuring range -40°C...+85°C, 0...100% rF, 10-1100 hPa (57113 only) Resolution 1/10 °C, 1/10% rF, 0,1 hPa (57113 only)
Page 79 Technical data 20.3 Technical data for items 57171 and 57172 Network: 10/100BaseT autosensing Supply voltage Power over Ethernet or 12-48V DC (+/-10%) via screw terminal Measuring unit Sensor 1x Pt100/Pt1000 measurement input (57171) 2x Pt100/Pt1000 measurement input (57172) Cable length W&T sensor: 2m (freely extendable) Protection class IP67 Measuring range W&T sensor: -50°C...180°C...
Page 80 Battery replacement and disposal 21 Battery replacement and disposal The web thermometer contains a 3V lithium manganese dioxide button cell battery (type CR 1632) for buffering the internal clock. This battery has a service life of 10 years and may only be replaced with a battery of the same type. When operating the web thermometer in a network environment with access to a time server, the battery is not essential for the correct functioning of the device and can be removed.
Page 81 Battery replacement and disposal board. After replacing/removing the battery, reassemble the device in reverse order. #57113, 57114, 57115, 57120 Battery press remove press Screw the DB9 connector or the IO terminal firmly to the device. First remove the green power supply terminal. Press the narrow sides of the housing together slightly to create a small gap and pull out the circuit board at the DB9 connector or the green IO terminal.
Page 82 Battery replacement and disposal The complete declaration of conformity for the device described can be found on the Internet data sheet page on the W&T homepage at http://www.wut.de/<item number>.. Wiesemann & Theis GmbH Porschestraße 12 D-42279 Wuppertal Mail info@wut.de www.wut.de Tel.

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