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OM-WEB-TC
Eight Channel Web-Enabled Thermocouple Input Module
Product Specs
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| A/D Conversion | Four dual 24-bit sigma delta A/D converters |
| Accuracy | ± 0.75 °C |
| Analog I/O Note | Analog Input Note: Analog Inputs;A/D Converter: Four dual 24-bit sigma delta A/D converters;Input Isolation: 500 Vdc minimum between field wiring and USB interface;Number of Channels: 8 differential thermocouple inputs;Differential Input Voltage Range: ±0.080V;Absolute Maximum Input Voltage: ±25V (power on), ±40V (power off);Throughput Rate: 2 samples/sec maximum for all active channels;Input Impedance: 5 GΩ minimum;Input Leakage Current: 105 nA maximum (with open thermocouple detection enabled);Normal Mode Rejection Ratio: 90 dB minimum;Common Mode Rejection Ratio: 100 dB minimum;Warm-Up Time: 30 minutes maximum;Open Thermocouple Detection:3 sec open detection time (maximum);CJC Sensor Accuracy:-0.75 to 0.5°C maximum (15 to 35°C); -1.5 to 1.25°C maximum (0 to 55°C) |
| CMRR | 100 dB |
| Configuration Parameters | Pull-Up/Down Configuration, Switch-Selectable Output Voltage, User-Configurable Input/Output |
| Data Interface | Ethernet |
| Data Interface Note | Ethernet Type - 10Base-T;Protocols Implemented: IP, ARP, ICMP, DHCP, UDP, TCP, NBNS, HTTP ;UDP Messaging Protocol: UDP port 54211;TCP Downloading Protocol: TCP port 54267;HTTP 1.0 Alternate Port: TCP port 49152-65535 (not including 54267);Network Name: webtc_xxxxx, where xxxxx is the device’s serial number;Maximum Number of Simultaneous HTTP Connections: 3;Maximum Number of Non-HTTP TCP Sockets: 5;Network Factory Default Settings;"IP Address: 192.168.0.101;Subnet Mask: 255.255.255.0;Gateway: 192.168.0.1;DHCP Setting: Enabled;User Name: webtc;Password: omega;Web Server: Enabled";Network Security;"Security Implementation: IP address based session manager with username/password login for configuration and control transactions (data is not secured) ;Session Timeout: 5 min with no activity;Username/Password ;Encryption: Base64 (the default web page does not support encryption if Javascript is disabled in the web browser) ;Vulnerabilities: Denial of service attacks, username/password spoofing, script probing and simple decryption";;Ethernet Cable Length, Max: 100 m;Ethernet Port: IEEE 802.3 Ethernet 10Base-T;Configuration Method: TracerDAQ Software;Supported Operating System: Microsoft Windows® VISTA/7/8/10 (32-bit and 64-bit) |
| Digital I/O Note | Number of Digital I/O Channels: 8 Type: CMOS Configuration: Each DIO bit can be independently configured for input or output. Switch selectable output voltages of 5V or 3.3V. Power on reset is input mode unless bit is configured for alarm Pull-Up/Pull-Down Configuration: All pins are connected to 47 kΩ resistors (user configurable for pull-up mode to 5V or pull-down mode) Digital I/O Transfer Rate (Software Paced): Digital Input: 50 port reads or single bit reads per second (typical) Digital Output: 100 port writes or single bit writes per second (typical) Input High Voltage: 4.0V minimum, 5.5V absolute maximum (5V mode); 2.64V minimum, 5.5V absolute maximum (3.3V mode) Input Low Voltage: 1.0V maximum, -0.3V absolute minimum (5V mode); 0.66V maximum, -0.3V absolute minimum (3.3V mode) Output High Voltage: 4.3V minimum (5V mode), 2.7V minimum (3.3V mode); IOH = -2.5 mA Output Low Voltage: 0.6V maximum (IOL = 2.5 mA) Temperature Alarms: 8 (one per digital I/O line);Transfer Rate: Digital Input: 50 port reads or single bit reads per second (typical), Digital Output: 100 port writes or single bit writes per second (typical) |
| Digital Input | Digital: Low = –0.5 to 1.0 Vdc |
| Electrical Connection | Screw Terminal |
| Height | 36 mm |
| Impedance Input | 5 GΩ |
| Input Configuration | Connected Software |
| Input Type | Thermocouple, Digital |
| Input Type Note | Thermocouple: J, K, T , E, S, R, B, N, RTD: Pt100, Thermistor: 2252Ω |
| Input Voltage Note | Absolute Maximum Input Voltage: ±25V (Power On), ±40V (Power Off) |
| Isolation | Power Isolation: 500 Vdc minimum measurement system to PC, Input Isolation: 500 Vdc min between field wiring and USB interface |
| LED Indicators | Supply Status LED |
| Leakage Current | 105 nA |
| Length | 127 mm |
| Memory | EEPROM: 512 bytes, FLASH: 2 MB |
| Microcontroller | One high performance 8-bit RISC microcontroller and one highperformance 16-bit RISC microcontroller |
| NMRR | 90 dB |
| Number of Channels, Input | Analog: 8 DIFF, Digital: 8 |
| Number of Channels, Output | Digital: 8 |
| Operating Temperature, Max | 55 °C |
| Operating Temperature, Min | 0 °C |
| Output Signal | Digital |
| Pull-down Resistor | 47 kΩ |
| Pull-up Resistor | 47 kΩ |
| Relative Humidity | 0 to 90% RH non-condensing |
| Sampling Rate | 2 Hz (2 updates/second) |
| Storage Temperature, Max | 85 °C |
| Storage Temperature, Min | -40 °C |
| Supply Power Note | Supplied by Included External Power Supply: 5 Vdc ±5%, Supplied by Included External Power Supply: 440 mA maximum, User Output Voltage (5V): 4.65V min to 5.25V maximum |
| Supply Voltage | 5 Vdc |
| Warm Up Time | 30 min |
| Weight | 160 g |
| Width | 89 mm |
| Wire Gauge | 30 to 16 AWG |
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