User’s Guide Shop on line at ® omega.com e-mail: info@omega.com For Latest Product Manuals omegamanual.
It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification. The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.
TABLE OF CONTENTS Part 1: Introduction ....................................................................................................2 1.1 Safety and EMC Considerations ...........................................................2 1.2 Before You Begin ...................................................................................2 1.3 Description..............................................................................................3 Part 2: Hardware ........................................
.10 Remote Access (Tunneling) ................................................................38 4.10.1 Remote iServer ........................................................................39 4.10.2 Local iServer ...........................................................................40 4.10.3 Tunneling Troubleshooting ...................................................41 4.11 iPORT, COM Port Redirector...............................................................41 4.11.1 iPORT Overview ...........
Figure 1.1 Figure 2.1 Figure 2.2 Figure 2.3 Figure 2.4a Figure 2.4b Figure 2.5 Figure 2.6 Figure 2.7 Figure 2.8 Figure 2.9 Figure 3.1 Figure 3.2 Figure 3.3 Figure 4.1 Figure 4.2 Figure 4.3 Figure 4.4 Figure 4.5 Figure 4.6 Figure 4.7 Figure 4.8 Figure 4.9 Figure 4.10 Figure 4.11 Figure 4.12 Figure 4.13 Figure 4.14 Figure 4.15 Figure 4.16 Figure 4.17 Figure 4.18 Figure 4.19 Figure 4.20 Figure 4.21 Figure 4.22 Figure 4.23 Figure 4.24 Figure 4.25 Figure 4.26 Figure 4.27 Figure 4.28 Figure 4.29 Figure 4.
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NOTES, WARNINGS and CAUTIONS Information that is especially important to note is identified by following labels: • NOTE • WARNING or CAUTION • IMPORTANT • TIP NOTE: Provides you with information that is important to successfully setup and use the iServer. CAUTION or WARNING: Tells you about the risk of electrical shock. CAUTION, WARNING or IMPORTANT: Tells you of circumstances or practices that can effect the instrument’s functionality and must refer to accompanying documents.
PART 1 INTRODUCTION 1.1 Safety and EMC Considerations Refer to the CE Approval Section EMC Considerations • Whenever EMC is an issue, always use shielded cables. • Never run signal and power wires in the same conduit. • Use twisted-pair wires for signal connections. • Install Ferrite Bead(s) on signal wires close to the instrument if EMC problems persist. Failure to follow all instructions and warnings may result in injury! 1.
1.3 Description This device can be purchased as a stand alone DIN Rail mounted unit, or as a bench/wall mount unit. The iServer is a stand alone Ethernet Server designed to connect devices with serial interfaces to the Ethernet network using the TCP/IP protocol. It contains Ethernet and RS232/RS485 interfaces. The standard features include: • Use standard Web Browser, TCP connection, HTTPget DOS program or Telnet Simulation, for network connectivity. • Install via RS232/RS485 serial port connection.
PART 2 HARDWARE 2.1 Mounting 2.1.1 Mounting the Wall Mount iServer Position unit where required. Mark and drill the two #6 screw holes. After bracket is mounted on the wall, align back of unit over the three bracket clips, once engaged, slide downward, the unit will snap in place. 2.60 [66.0] Ground Screw on Rear of Case 1.30 [33.0] Ethernet 1.07 [27.3] Bracket Clips (3) 1.50 [38.1] Drill 0.14 [3.6] (2 plcs) Use #6 Screws (Provided) to Mount the Bracket 3.67 [93.1] Figure 2.
2.1.2 Mounting the DIN Rail iServer To install unit onto DIN Rail: a) Tilt unit, position mounting slot onto DIN Rail, as shown. b) Push unit towards DIN Rail and it will snap into place. Figure 2.2 Mounting - DIN Rail iServer 2.1.2.1 Removal from a DIN Rail a) Insert flat screw-driver into tab and push downwards. b) Unit will detach from DIN Rail. Figure 2.3 Removal - DIN Rail iServer For overall dimensions of unit, refer to Figure 5.2 in Specifications Section.
2.2 DIP Switches 2.2.1 DIP Switch Usage The iServer is shipped with all DIP switches in "OFF" position. 1 To change the IP address, gateway address, and subnet mask from the serial port 2 To change to default factory settings 3 To enable/disable DHCP 4 To enable/disable Terminal Server function To set the iServer to factory default settings, slide DIP switch #2 to ON position. Power the iServer on and wait about 10 seconds until the iServer fully boots up.
2.3 Parts of the iServer Unit ACTIVITY NETWORK LINK TX-TRANSMIT RX-RECEIVE RX TX LINK ACT SERIAL RS-232 / RS-485 Mounting Bracket Figure 2.5 Parts of the iServer Unit Table 2.1 Parts of iServer Unit SERIAL DB9 male (DTE Configuration) or 2, four position connectors for RS232 / RS485 connections RESET Button: Used for power reseting the iServer. ETHERNET RJ45 interface for 10BASE-T connection.
2.4 Serial Communication Interfaces Two communication interfaces are supported in the iServer: RS232 and RS485. These standards define the electrical characteristics of a communication network. The RS485 port of the iServer is fully compatible to use with RS485 instruments. The RS485 is an extended version of the RS422 communication standard which increases the allowable number of devices from 10 to 32 by improving the electrical characteristics.
92.4.1 Wiring RS232 Interface -- Wall Mount iServer Table 2.3 shows the signals and the direction of signals on the DB9 (DTE configuration) RS232 Serial Port. Table 2.3 * These 4 pins can also be used as digital input/output signals (firmware selection). Wall Mount iServer DB9 Pin# Signal Direction 1 DCD IN 2 Rx IN 3 Tx OUT *4 DTR OUT 5 GND -*6 DSR IN *7 RTS OUT *8 CTS IN 9 N/C N/C 2.4.2 Wiring RS232 Interface -- DIN Rail iServer Table 2.
2.4.3 Wiring RS485 Interface -- Wall Mount iServer RS485 interface uses a two-wire communication system (one for transmitting and one for receiving) plus a common wire to connect to the shield of the cable. It is recommended to use a shielded cable with one twisted pair. Use of twisted pair and shield will significantly improve noise immunity. Figure 2.6 shows multi-point, half-duplex RS485 interface connections for the iServer. .........................
2.4.4 Wiring RS485 Interface -- DIN Rail iServer RS485 interface uses a two-wire communication system (one for transmitting and one for receiving) plus a common wire to connect to the shield of the cable. It is recommended to use a shielded cable with one twisted pair. Use of twisted pair and shield will significantly improve noise immunity. Figure 2.7 shows multi-point, half-duplex RS485 interface connections for the iServer. GND +Tx/+Rx .........................
2.5 Network Communication Interfaces 2.5.1 10Base-T RJ-45 Pinout The 10BASE-T Ethernet network (RJ-45) system is used in the iServer for network connectivity. The 10 Mbps twisted-pair Ethernet system operates over two pairs of wires. One pair is used for receiving data signals and the other pair is used for transmitting data signals. This means that four pins of the eight-pin connector are used.
PART 3 NETWORK CONFIGURATION 3.1 Network Protocols The iServer can be connected to the network using standard TCP/IP protocols. It also supports ARP, HTTP (WEB server), DHCP, DNS and Telnet protocols. 3.2 Ethernet (MAC) Address MAC (Media Access Control) address is your computer's unique hardware number. When you're connected to the LAN from your computer, a correspondence table relates your IP address to your computer's physical (MAC) address.
3.3 DHCP DHCP, Dynamic Host Configuration Protocol enables individual computers or devices to extract their IP configurations from a server (DHCP server). If the DHCP is enabled on your iServer, as soon as the iServer is connected to the network, there is an exchange of information between DHCP server and the iServer. During this process the IP address, the Gateway address, and the Subnet Mask will be assigned to the iServer by the DHCP server.
3.5.1 Default IP Address The iServer is shipped with a default IP address set to 192.168.1.200 and Subnet Mask of 255.255.255.0. If you are going to use a Web browser or Telnet program to access the iServer using its default IP address, make sure that the PC from which you’re establishing the connection has an IP address that is in the same range as the iServer’s IP address (192.168.1.x, where x can be any number from 1 to 254). Your PC’s IP address cannot be the same as the iServer’s IP address).
PART 4 OPERATIONS This iServer can be used and configured in several ways, depending on user’s preference and network setup. It can be used in Telnet simulation mode where it emmulates serial communication operation over a network cable or directly from a Web browser, like Netscape or Internet Explorer. It can also be configured using the iConnect Configuration Software.
4.1 iConnect Software The iServer may also be assigned an IP Address by using the iConnect software. a) Download the iConnect software from the website listed in this manual. b) Install iConnect software on a networked PC. This software is compatible with Windows 95, 98, NT, 2000, and XP. c) Use iConnect to assign an IP address to the iServer and access its web pages for configuration. You can also use any standard web browser to access the iServer’s web pages.
4.1 iConnect Software (continued) d) To access the iServer for Configuration: Click on the “View Webpage” button, you will access the iServer’s home page, refer to Section 4.3 for details. iSERVER HOME PAGE Read Devices Terminal Emulation Device Setup Device Query Configuration Access Control Figure 4.
4.2 Setting a New IP Address over the Network Besides using the iConnect software, you may use the iServer’s default IP address to access it and assign a new IP address to it. The iServer is shipped with a default IP address of 192.168.1.200 and Subnet Mask of 255.255.255.0. You can configure your PC’s Network connection with an IP address that is in the same range as the iServer’s IP address (192.168.1.x) and connect to the iServer using a crossover network cable between your PC and the iServer.
4.3 Setup and Operation Using a Web Browser • Start your web browser. • From the browser you type http://eisxxxx using the last four-digits from the MAC address label located on the device if DHCP and DNS are used. If a static IP address is used, then simply type http://x.x.x.x, where x.x.x.x is the iServer’s IP address. • The Home Page, shown below, will be displayed. SERVER HOME PAGE Address http://192.168.1.
4.3.1 Device Setup From the iServer Home Page, this option allows the users to add up to eight devices (in RS485 mode) and the iServer will send the entered commands out and will receive the responses from those devices. The responses can be seen by clicking on the “Take Readings” button. Since only one device can be connected in an RS232 connection, there should be only one device entered in the “Device Setup” page. By clicking on the numbers from 1 to 8, the parameters for each device can be defined.
4.3.2 Read Devices From the iServer home page, when selecting “Read Devices” option, you could be prompted with the following error message. Error Address To be able to select the “Read Devices” option, you need to click on the “Configuration” option and change “Number of Connections” to 0 (see Figure 4.12). Make sure to Save the page and click “Read Devices” option again.
4.3.4 Configuration This section describes the "Configuration" page of the iServers’s Web interface. Click on Configuration , the following page should appear. When connecting your serial device to the iServer, the Serial Communications parameters (baud rate, data bit, parity, and stop bit) must be the same on both, the iServer and your serial device. CONFIGURATION Address A http://192.168.1.
4.3.4.A Serial Communication (continued) Transceiver: The iServer’s DB9 serial port can either be set to RS232 or two-wire RS485 (default is RS232). Modbus/TCP: A widely used protocol mainly in industrial automation applications with default TCP port number of 502 (see Local Port field). The options are Enable and Disable. If enabled, the Modbus/TCP is the only protocol driven by the iServer on its LAN port.
4.3.4B Terminal Server (continued) Server Type: In most cases the iServer will be acting as a Slave device. Slave option is chosen when a network host needs to connect to the serial port of the iServer (default is Slave). With RS485 connection, the Host option is selected if the connection is initiated from the serial device targeting a node on the network. Number of Connections: The range is from 0 to 5. If 0 is selected, the Terminal Server feature is disabled.
4.3.5 Configure Access Control This section describes the "Access Control" page of the iServers’s Web interface. This page allows the users to set up the network and security parameters of the iServer. At the initial entrance to the “Access Control” page you will be prompted for the LOGIN Password (see Figure 4.6) prior to an ADMINISTRATOR Password. ACCESS CONTROL Address http://192.168.1.
4.3.5 Configure Access Control (continued) IP Address: The IP (Internet Protocol) address is a 32-bit number that identifies each sender or receiver of information that is sent in packets across the Ethernet or the Internet. The iServer’s default IP address is 192.168.1.200. The iServer’s IP address should be changed to fit user’s networking environment. Consult with your IT department for obtaining an IP address. The DHCP will be enabled in the iServer if its IP address is set to 0.0.0.0.
4.4 Setting a New IP Address using the Serial Port Once you know the IP address that you need to put on your iServer you can use a serial connection (Terminal Emulation) to assign the IP address to the iServer. Setting the IP address over the serial port requires a crossed-over (null modem) serial cable and Hyper Terminal or any terminal emulation program. When all the connections are done, change the DIP switch #1 to "ON" position and press the Reset button or reset the power on the iServer.
4.4 Setting a New IP Address using the Serial Port (continued) All that is left for you to do, is to use a straight/normal network cable to connect the iServer to an Ethernet hub and power it up. Then you can go to your computer that is connected to the same network and from the MS-DOS-Prompt window type "ping 192.168.1.70" where 192.168.1.70 is the new IP address for the iServer. C:\>ping 192.168.1.70 Pinging 192.168.1.70 with 32 bytes of data: Reply Reply Reply Reply from from from from 192.168.1.
4.5 Terminal Server Function This is used to provide dedicated connectivity between computers and serial devices through the iServer over the Ethernet, without dedicated wiring. The typical Internet protocol consists of a request and a reply to that request. In this situation the server is the Host that generates the request and receives the reply from the device, that gets forwarded to the appropriate party on the network.
4.6 Terminal Emulation On this page you can send and receive data to and from the serial device. Simply, type the command in the white area and as you type the characters, the characters will be transmitted out from the serial port of the iServer. If you want to send the whole command as a word, simple paste the word in the same area. This is an excellent tool to retrieve data from the serial port without any special software, only a web browser. TERMINAL SERVER Address http://192.168.1.
4.7 Telnet Setup Telnet stands for Telecommunications Network, it is a protocol that provides a way for users (or clients) to connect to computers (or servers) on a network, whether in the next building or across the other side of the world. You can open a Telnet session using other terminal emulation programs like Tera Term Pro (downloadable from the internet), which is a free software for MS-Windows. It supports VT100 emulation, Telnet connection and serial port connection.
4.7 Telnet Setup (continued) In the Configuration mode you can make any changes just like you would do using the Web Browser. After connected to the iServer, the user can use the following commands to read, modify, and get help from the iServer console. ? Following with a return character, the console will show all the commands and options (Figure 4.21). p Following with a return character, the console will show the iServer configurations (Figure 4.20).
4.8 HTTPget Program The HTTPget software is used to send a single HTTP or TCP request to an iServer product. In contrast, the telnet or Hyperterminal programs allow a continuous connection with multiple requests to be sent to the iServer product. Generally HTTPget is used for simply programming an IP address to the iServer or for quickly obtaining a reading of from a device.
4.8.1 HTTPget Program using Port 1000 (continued) 2. If you now type "httpget" and press the "enter" key, the program options should be displayed. 3. Next run HTTPget with the options displayed below httpget –r –S "*01X01\r" 192.168.1.200:1000 where: "-r –S" "*01" are parameters needed for the command string is device address (in hex format) for RS485 communication interface (skip for RS232) "X01" read measurement data value (iSeries protocol) "\r" is the carriage return termination character "192.168.1.
4.8.2 HTTPget and ARP to Setup Device IP Address Use the iConnect software, which may be downloaded from our website, to do these IP changes whenever possible. Use ARP first to assign the mac address to a static IP address in computer arp table by this command: arp –s 192.168.1.200 00-03-34-00-06-b6 Then use the following command to assign new IP to the device: httpget –r –S "00000000" 192.168.1.200:1 where: “0000000” is admin. password. If the password is wrong, the unit will ignore the new IP.
4.9 ARP Protocol (continued) The following window shows examples of arp commands and responses. • Your computer has an IP address of 192.168.1.118 • The destination computer has an IP address of 192.168.1.96 C:\>arp - 192.168.1.96 No ARP Entries Found C:\>ping 192.168.1.96 Pinging 192.168.1.96 with 32 bytes of data: Reply Reply Reply Reply from from from from 192.168.1.96=bytes=32 192.168.1.96=bytes=32 192.168.1.96=bytes=32 192.168.1.
4.10 Remote Access (Tunneling) To "tunnel", in this context, is to transmit data between two points through a private conduit on a shared or public network. The network could be an Ethernet LAN, a WAN, or the Internet. The iServer allows for a connection between a serial device and a PC, or between two serial devices, using an existing network rather than dedicated wiring.
4.10.1 Remote iServer It’s recommended to configure the Remote iServer and have it up and running before the Local iServer is configured. 1. A static IP address must be assigned to the Remote iServer. This means that the DHCP must remain disabled. Refer to the DHCP section of the user’s manual for details. 2. Use a browser to access the Remote iServer’s WEB page. Simply type the iServer’s IP address at the browser’s URL location (i.e. 192.168.1.50) followed by an Enter key.
4.10.2 Local iServer 1. An IP address should be assigned to the iServer dynamically or statically (recommended). 2. Use a browser to access the Local iServer’s WEB page. Simply type the iServer’s IP address at the browser’s URL location (i.e. 192.168.1.49) followed by an Enter key. You should then see the iServer’s main WEB page. 3. Click on the Update button. 4. Click on Configuration, you will be prompted with a Password (default is 12345678). 5.
4.10.3 Tunneling Troubleshooting Using the original serial cable, please confirm valid communication between the serial device and its application software on the PC with no iServers in between (direct serial connection). A successful connection is evident when the Remote Access drop down menu in the Configuration page shows enable. This proves that the Serial Tunnel between the two iServers is up and running.
4.11.1 iPORT Overview (continued) Serial Device Software Serial Cable (RS232) Figure 4.27 Direct Serial Connection with IP address 128.100.101.254 Serial Device Software Port# 2000 iPORT Software with IP address 128.100.101.200 Figure 4.28 Redirect Serial Connection 4.11.2 iPORT Configurations After the iPORT is successfully installed on your windows machine, you will have an iPORT icon on your desktop and Control Panel window.
4.11.2 iPORT Configurations (continued) 192.168.1.200 2000 Figure 4.29 iPORT Main Window Figure 4.
4.11.2 iPORT Configurations (continued) iServer IP Address – This is the IP address of the iServer that is connected to the serial device on one end and attached to the Ethernet LAN on the other end. The iServer’s default IP address is 192.168.1.200, which can be changed to fit your network IP address range (see Section 3.5). iServer Port Number – This is the port number for the iServer’s local serial port. The default value is 2000.
4.12 Mail Notifier Software The Mail Notifier Software can only be used with our brand of instruments. For complete information of how to use the Mail Notifier software, click on the Help menu of the main window. The Mail Notifier software generates email notifications for alarm conditions. Users can be notified automatically of alarm conditions monitored via internet connections throughout the world.
4.12.2 Program Options Setup and Configuration Complete program setup requires: • Entering a recipient for the email • Specifying connection details to MAPI services. • Defining alarms for devices, and selecting how and when the email will be active. Options Send To Email Setup Content Startup General Mail Server MAPI Use Login Box Name/Profile Password Email Address Help MS Outlook Outlook 2002 OK Cancel Figure 4.
4.12.3 Device Setting and Configuration Device setup requires: • Entering the IP Address for iServer device (for example 192.168.1.200). • Specifying Socket (or Port) Number (1000 or 2000 depending on iServer settings). • Defining RS485 Unit # interface address (1 to 199). Enter "0" for RS232 interface or for iServer. • Entering Reading Command. Normally set to X01 to obtain reading from the devices.If you want to change this setting, refer to HTTPget Section 4.8.
4.13 iLog Software The iLog Software can only be used with our brand of instruments. For complete information of how to use the iLog software, click on the Help menu of the main window. This is an Excel application software that can log data from our instruments over the local network (Ethernet) or the internet. a) Download the iLog software from the website listed in this manual. b) Install iLog software on a networked PC. This software is compatible with Windows 95, 98, NT, 2000, and XP.
PART 5 SPECIFICATIONS Serial Interface Interface: RS232 or RS485 (2-wire) Connector: DB9 (male DTE) for Wall Mount; 8 position Terminal Block plugs for DIN Rail Serial Data Rates: 300 to 115,200 bps Characters: 7 or 8 data bits Parity: odd, even, or none Stop Bits: 1 or 2 Flow Control: Hardware (CTS/RTS) and Software (Xon/Xoff) Digital I/O’s 4 digital input/output lines Network Interface Interface: Ethernet 10BASE-T Connector: RJ45 Protocols: TCP/IP, UDP/IP, ARP, ICMP, DHCP, DNS, HTTP, Telnet simulation, an
3.55 [90.2] 3.05 [77.5] 2.42 [61.6] 2.60 [66.0] 0.25 [6.4] 3.56 [90.3] 3.67 [93.1] 0.25 [6.4] 0.30 [7.7] 1.78 [45.2] Material: ABS (ChiMei PA-757) Weight: 77 g (0.17 lbs) Material: Steel, with Flange Mount Weight: 181 kg (0.4 lbs) 0.88 [ 22.4] 1.08 [ 27.4] 0.14 [3.6] 0.82 [20.8] Version Version A - newAcase style 0.93 [23.6] Version B -Version older case B style Figure 5.1 Wall Mount iServer Dimensions COMMUNICATIONS ETHERNET RESET DC POWER IN N/C 4.
PART 6 FACTORY PRESET VALUES PRESET PARAMETERS Network Interface: IP Address Gateway Address Subnet Mask Device Host Name Login Password Admin Password DHCP Serial Interface: Communication Protocol Flow Control Baud Rate Parity Stop Bit Data Bit Timeout End Character Terminal Server: Server Type Number of Connections Port # Server Mode Remote Access (Tunneling): Remote Access Remote Port Remote IP Address FACTORY DEFAULTS 192.168.1.200 0.0.0.0 255.255.255.
APPENDIX A GLOSSARY User of this manual should be familiar with following definitions: ARP (Address Resolution Protocol) is a protocol for mapping an Internet Protocol address (IP address) to a physical machine address that is recognized in the local network. For example, the IP address in use today is an address that is 32-bits long. In an Ethernet local area network, however, addresses for attached devices are 48-bits long.
Appendix B IP Address An IP address is a unique 32-bit address assigned to a computer and includes: • A network ID number identifying a network. • A host ID number identifying a computer on the network. All IP addresses have been divided into three smaller groups (classes) A, B and C • Class A addresses have 8-bits of network ID and 24-bits of host ID. They can support a large number of hosts, approximately 2 = 16,777,216 computers per network. The IP addresses range in binary from 00000001.xxxxxxxx.
Appendix C IP Netmask IP Netmask or Subnet Mask is a 32-bit pattern of ones and zeros used to determine network portion of an IP address from the host portion of the IP address. Subnet mask is a network ID that is created by borrowing bits from host portion of IP address and using them as part of a network ID. The table below shows a default subnet mask for address Classes A, B, and C.
Appendix D ASCII Char NUL SOH STX ETX EOT ENQ ACK BEL BS HT LF VT FF CR SO SI DLE DC1 DC2 DC3 DC4 NAK SYN ETB CAN EM SUB ESC FS GS RS US SP ! " # $ % & ‘ ( ) * + , .
Appendix D / 47 0 48 1 49 2 50 3 51 4 52 5 53 6 54 7 55 8 56 9 57 : 58 ; 59 < 60 = 61 > 62 ? 63 2F 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F ASCII Chart Continuation 00101111 o 111 p 00110000 112 q 00110001 113 00110010 r 114 00110011 s 115 00110100 t 116 00110101 u 117 00110110 v 118 00110111 w 119 00111000 x 120 y 00111001 121 00111010 z 122 { 00111011 123 | 00111100 124 } 00111101 125 00111110 ~ 126 00111111 DEL 127 6F 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7D 7E 7F 01101111 01110000 01110001 0
Appendix E iLog Error Messages Error # Description Note -10005 Failed to find the iSeries. Ethernet cable is disconnected, iSeries is powered off, connections across the firewall require longer “connection to socket time out” setting. -8003 User stopped logging readings. -10006 Windows socket was closed. -10007 Windows socket error. Wrong IP or wrong Port number was used. -10008 The iSeries failed to respond to a request. Wrong IP or wrong Port number was used.
PART 7 APPROVALS INFORMATION 7.1 CE APPROVAL This product conforms to the EMC directive 89/336/EEC amended by 93/68/EEC, and with the European Low Voltage Directive 72/23/EEC. Electrical Safety EN61010-1:2001 Safety requirements for electrical equipment for measurement, control and laboratory.
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WARRANTY/DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of one (1) year from the date of purchase. In addition to OMEGA’s standard warranty period, OMEGA Engineering will extend the warranty period for one (1) additional year if the warranty card enclosed with each instrument is returned to OMEGA. If the unit malfunctions, it must be returned to the factory for evaluation.
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