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1794-IT8
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Product image is representative; revision or series may vary. Contact us to request a specific version.
Product Information
Product Describe
1794IT8
INPUT MODULE
FLEX I/O
8 CHANNEL
THERMOCOUPLE / MILLIVOLT INPUT
+/- 76.5 MV INPUT
16 BIT RESOLUTION
20 MA FLEXBUS CURRENT
24 VDC SUPPLY
BLOCK TRANSFER INTERFACE
INPUT MODULE
FLEX I/O
8 CHANNEL
THERMOCOUPLE / MILLIVOLT INPUT
+/- 76.5 MV INPUT
16 BIT RESOLUTION
20 MA FLEXBUS CURRENT
24 VDC SUPPLY
BLOCK TRANSFER INTERFACE
Technical specifications for 1794-IT8
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Product Model1794-IT8
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Spare Model1794IT8
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Product ParametersFLEX I/O INPUT MODULE
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Tariff Code8537101190
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Country of originUSA
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Place of shipmentXiamen,China
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Estimated Shipping Size13x13x8.8cm
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ManufacturerAllen-Bradley
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Weight0.2 kg
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Number of Inputs8 channels
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Nominal InputRanges-76.5 to +76.5mV
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Resolution16 bits
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Common ModeRejection-115db @ 60Hz; -100db @ 50Hz
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Common Mode InputRange+10V maximum
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Normal Mode NoiseRejection-60db @ 60Hz
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Input Offset Driftw/Temperature+6mV/°C maximum
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Gain Drift w/Temp10ppm/°C maximum
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Channel Bandwidth0-2.62Hz (-3db)
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OvervoltageCapability35V dc, 25V ac continuous at 25°C
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Overall Drift withTemperature50ppm/°C of span (maximum)
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Channel to channelisolation+10V
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Flexbus Current20mA
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Power Dissipation3.0W maximum @ 31.2V dc
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Thermal Dissipation Maximum10.2 BTU/hr @ 31.2V dc
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Factory New
These are new and current items that are procured from the manufacturer. -
New No Package
These parts are new. They have not been used, but their original packaging is no longer available. -
New In Opened Package
These parts are new. They have not been used, but their original packaging has been opened or the packaging is significantly aged. -
New In Sealed Package
Parts are new. They have not been used and still have their original package seal intact. -
New in Original Package
These parts are new. The packages were not originally sealed by their original manufacturer.
Warranty Period & Disclaimer
Amikon is not an authorized distributor unless otherwise specified, representative, or affiliate of the manufacturer of this product. All trademarks and documents are the property of their respective owners and are provided for identification and informational.
FAQs
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How many indicators are on 1794-IT8?+1794-IT8 has 1 red/green power status indicator.
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What is the resolution of 1794-IT8?+The resolution of 1794-IT8 is 16 bits.
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What are compatible Thermocouple sensors for use with the 1794-IT8?+The 1794-IT8 is compatible for use with J, K, E, R, N, S, B, C, T and L sensors.
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What is the 1794-IT8？+The Allen-Bradley 1794-IT8 is an 8-channel thermocouple and millivolt input module part of the FLEX I/O system.
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Revisions
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MORE INFORMATION
Overview
Manuals
Technical notes
Product Applications
Wiring Instructions
Features:
- Flex I/O 1794r
- 16-bit 2’s complement or offset binary (unipolar)
- Wiring Connections for the Thermocouple/RTD Module
- FLEX I/O Thermocouple Input Analog Module and RTD Module
The 1794-IT8 is compatible with any available Flex I/O communication adapter. This module is a compatible on being operated in Temperature application ranges such as 300 to 1800oC (572 to 3272oF) using Type B Thermocouple; 0 to 2315oC (32 to 4199oF) Type C;–230 to 1000oC (–382 to 1832oF) Type E; –195 to 1200oC (–319 to 2192oF) Type J; –230 to 1372oC (–382 to 2502oF) type K; –270 to 1300oC (–450 to 2372oF) Type N; –50 to 1768oC (–58 to 3214oF) Type R; –50 to 1768oC (–58 to 3214oF) Type S; –195 to 400oC (–319 to 752oF) type T; –175 to 800oC (–283 to 1472oF) type L. Milivolt input signals are practically used with transducers and other instruments that produce non-standard signals. Data exchange with the 1794-IT8 Thermocouple input module is configured using the block transfer operation.
The 1794-IT8 Allen-Bradley FLEX I/O INPUT MODULE may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen-Bradley 1794-IT8 FLEX I/O INPUT MODULE Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Before inserting the 1794-IT8 module on the terminal base, the users should rotate the key switch on the base to Position 3 because this position is required for the safe mounting and operation of the thermocouple/mV module. The Allen-Bradley 1794-IT8 FLEX I/O thermocouple module communicates with PLCs through the block-transferring option. Block transfer programming relies on input signal data words moving between the thermocouple module’s memory and a designated area in the PLC’s data table. Block transfer programming also supports the moving of the configuration words from the PLC data table to the thermocouple module. The Allen-Bradley 1794-IT8 module comes with 2 cold junction compensators that are engineered to be mounted in designated positions on the terminal base unit. The module can accept grounded and ungrounded thermocouples. The nominal input range for the input signals is -7.65 to 7.65 mV. The module is supplied with 24 Volts DC voltage and it has 16-bit input signal resolution. On the front side of the module, there is 1 inserted label with 8 fields reserved for individual input designations. The 1794-IT8 has a normal mode rejection ratio of -60 dB at 60 Hertz, a common mode input range of +/-10 Volts, and a common mode rejection ratio of -115 dB at 60 Hertz and of 100 dB at 50 Hertz.
- Food and Beverage:Temp compliance & quality across production lines
- Energy Management:Monitors thermal conditions in power plants & distribution
- HVAC Systems:Tracks temp & humidity for heating/ventilation/A
- Furnace/Oven Monitoring:High-temp monitoring (B,C,N,S TCs) for metal processing
- Heat Treatment & Ovens:Maintains temp profile for material integrity in kilns/dryers
- Plastic Injection Molding:Monitors barrel & nozzle temps for consistent melt flow
- Packaging Equipment:Regulates sealing temps for heat-sealers & shrink tunnels
- Chemical & Process Reactors:Tracks exothermic/endothermic reactions in batch processors
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
The 1794-IT8 requires an external +24V DC power source, applied to terminal 34 (Row C) and 16 (Row B), as it does not draw power from the backplane.
Thermocouple Connections: Signal wires connect to Row A, while Cold Junction Compensation (CJC) sensors for the 1794-TB3T base connect to specified terminals 36–38 and 47–49.
Shielding: Connect shield returns to Row B (TB3) or Row C (TB3T).
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- Why Choose Amikon Limited?
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When it comes to industrial automation, reliability, speed, and trust matter. At Amikon Limited, we go beyond just supplying parts — we deliver confidence.
- ● Extensive Inventory Reach: Nearly 1 million automation parts at your fingertips, including legacy and obsolete models.
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Whether you're maintaining legacy systems or building future-ready projects, Amikon Limited is your dependable partner in precision and performance.
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32D UNITS,GUOMAO BUILDING,NO 388 HUBIN SOUTH ROAD,SIMING DISTRICT,XIAMEN