Excellent PLC
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Overview
The AI893 module is equipped with eight differential input channels, each capable of connecting to 2-wire or 3-wire Resistance Temperature Detectors (RTDs) and Thermocouples (TCs). It includes intrinsic safety protection components on each channel, allowing direct connection to process equipment in hazardous areas without the need for additional external devices. This feature ensures both safety and efficiency in industrial environments.
Product Specifications
Below is a table detailing the key specifications of the AI893 module:
| Specification | Details |
|---|---|
| Input Channels | 8 differential inputs for 2-wire or 3-wire RTD and TC sensors |
| Isolation | One group of 8 channels, isolated from ground |
| Resolution | 15 bits + sign |
| Intrinsic Safety | Certified for intrinsic safety, allowing direct connection to hazardous areas without additional devices |
| Common Mode Rejection Ratio (CMRR) | >100 dB at 50 Hz and 60 Hz |
| Normal Mode Rejection (NMR) | >80 dB at 50 Hz and 60 Hz |
| Rated Insulation Voltage | 50 V |
| Dimensions (W x H x D) | 45 x 102 x 119 mm |
| Weight | 0.16 kg |
| Operating Temperature Range | 0 to +55 °C (Storage: -40 to +70 °C) |
| Humidity | 5 to 95% relative humidity (non-condensing) |
| Protection Rating | IP20 according to IEC 60529 |
| Certifications | CE mark, ATEX/IECEx Zone 2 with interface to Zone 0, cFMus Class I, Division 2/Zone 2 with interface to Class I, II, III, Division 1/Zone 0 |
| Compatible MTUs | TU890 (for hazardous applications), TU891 (for non-hazardous applications) |
| Cold Junction Compensation (CJC) | Channel 8 can be configured for cold junction temperature measurement in TC mode; temperature can be measured locally on the MTU screw terminal or on a connection unit remote from the device. |
| Cold Junction Temperature Sensor | 3-wire Pt 100 sensor |
Product Applications
The AI893 module is versatile and suitable for various industrial applications, including:
-
Process Automation: Accurately monitors temperature variations in processes, ensuring optimal control and quality.
-
Hazardous Environments: Its intrinsic safety features make it ideal for industries like oil and gas, chemical processing, and mining, where safety is paramount.
-
Manufacturing: Provides precise temperature data essential for maintaining product quality in manufacturing processes.
-
Energy Sector: Monitors temperature in power generation and distribution systems to ensure efficient operation.
Product Advantages
The AI893 module offers several benefits:
-
Intrinsic Safety: Allows direct connection to hazardous areas without additional protective devices, simplifying system design and reducing costs.
-
High Accuracy: With a 15-bit resolution plus sign, it ensures precise temperature measurements critical for process control.
-
Flexible Configuration: Supports both RTD and TC sensors, accommodating various temperature measurement needs.
-
Robust Design: Built to withstand industrial environments, ensuring reliability and longevity.
-
Seamless Integration: Compatible with ABB’s S800 I/O series and other process control systems, facilitating easy integration.
Frequently Asked Questions (FAQs)
-
What types of sensors are compatible with the AI893 module?
The AI893 module is designed to work with both Thermocouple (TC) and Resistance Temperature Detector (RTD) sensors. It supports configurations for 2-wire or 3-wire RTD sensors, providing flexibility for various temperature measurement applications.
-
How many input channels does the AI893 module offer?
The AI893 module provides 8 analog input channels, allowing for multiple sensor connections within a single module.
-
Is the AI893 module suitable for use in hazardous areas?
Yes, each channel of the AI893 module includes intrinsic safety protection components, enabling direct connection to process equipment in hazardous areas without the need for additional external devices.
-
Which Module Termination Units (MTUs) are compatible with the AI893?
The AI893 module is compatible with MTUs TU890 and TU891. TU890 is typically used for hazardous applications, while TU891 is suitable for non-hazardous environments.
-
Can the AI893 module perform Cold Junction Compensation (CJC) for thermocouples?
Yes, in thermocouple mode, channel 8 of the AI893 can be configured for Cold Junction (ambient) temperature measurements, serving as the CJ-channel for channels 1 to 7. The junction temperature can be measured locally on the MTU screw terminal or on a remote connection unit.
-
What are the dimensions and weight of the AI893 module?
The AI893 module measures 45 x 102 x 119 mm. It weighs 0.16 kg.
-
What is the resolution of the AI893 module’s analog inputs?
The AI893 module offers a resolution of 15 bits plus sign, ensuring precise and accurate temperature measurements.
-
What certifications does the AI893 module hold for safety and compliance?
The AI893 module is certified with the CE mark, ATEX/IECEx Zone 2 with interface to Zone 0, and cFMus Class I, Division 2/Zone 2 with interface to Class I, II, III, Division 1/Zone 0, ensuring compliance with international safety standards.
-
What is the operating temperature range for the AI893 module?
The AI893 module operates within a temperature range of 0 to +55 °C and can be stored in temperatures ranging from -40 to +70 °C.
-
How does the AI893 module handle sensor wire configurations?
The AI893 module can be configured for either 2-wire or 3-wire RTD sensors. In thermocouple mode, channel 8 is used for cold junction temperature measurement, serving as the CJ-channel for channels 1 to 7.
Recommended Related Models within the Same Series
| Model Number | Description |
|---|---|
| AI801 | 8-channel analog input module for current measurements. |
| AI810 | 8-channel analog input module for voltage measurements. |
| AI820 | 4-channel analog input module with HART protocol support. |
| AI830A | 8-channel analog input module with HART protocol support. |
| AI835A | 8-channel high-speed analog input module. |
| AI845 | 8-channel analog input module for resistance measurements. |
| AI890 | 8-channel analog input module for thermocouple measurements. |
| AI895 | 16-channel analog input module for voltage measurements. |
| AI910 | 8-channel analog input module with intrinsic safety for hazardous areas. |
| AI930 | 8-channel analog input module with extended temperature range. |
Popular Models from ABB
| Model Number | Description |
|---|---|
| CI854A | PROFIBUS DP communication interface module. |
| CI867 | PROFINET IO communication interface module. |
| PM861AK01 | AC 800M controller with 512 kB memory. |
| PM891 | High-performance AC 800M controller with 2 MB memory. |
| SM811K01 | Redundancy module for AC 800M controllers. |
| TU830 | Module termination unit for 16 channels. |
| TU850 | Module termination unit with 24 V DC digital inputs. |
| DO810 | 16-channel digital output module. |
| DI830 | 16-channel digital input module. |
| AO810V2 | 8-channel analog output module. |
