Invensys Triconex Analog Input Module
Analog Input Modules
The Triconex 3721 is a high-performance analog input module designed for use in industrial automation and process control systems. It is part of the Triconex family of safety instrumented systems (SIS) offered by Emerson. The 3721 module is specifically designed to provide reliable and accurate measurement of analog signals, such as temperature, pressure, and flow.
Features:
- TMR (Triple Modular Redundancy): Provides high availability and fault tolerance.
- Hot swappable: Allows for online replacement of a faulty module without interrupting system operation.
- Differential input: Reduces the effects of common-mode noise.
- High accuracy: Ensures precise measurement of analog signals.
- Low noise: Minimizes the impact of electrical noise on the measurement.
- Multiple input ranges: Accommodates a variety of sensor types.
- Diagnostics: Provides built-in diagnostics for easy troubleshooting.
- Safety certified: Meets the requirements of various safety standards.
- Number of channels: Typically 4 or 8 channels per module.
- Input types: Differential, single-ended.
- Input ranges: Various ranges available to accommodate different sensor types (e.g., 0-5V, -5 to +5V).
- Resolution: High resolution for precise measurements.
- Accuracy: Typically within 0.1% of full scale.
- Sampling rate: Configurable sampling rate to meet application requirements.
- Communication: Connects to the Triconex system via a high-speed serial bus.
- Power requirements: Specified in the module's datasheet.
- Environmental conditions: Operating temperature range, humidity, and other environmental factors.
Product Specifications
| Brand/Manufacturer | Invensys |
| Part Number | 3721 |
| Description | The analog Input Module |
| Dimensions | 49x45.3x6.8cm |
| Weight | 2.85 kg |
Triconex Modules
Digital Input
3501E EDI Module, 115V AC/DC3502E EDI Module, 48V AC/DC
3503E EDI Module, 24V AC/DC
3504E HDDI Module, 24/48 VDC (24V)
3505E EDI Module, 24 VDC, Low Threshold
Digital Output
3601E EDO Module, 115 VAC
3603E EDO Module, 120 VDC (2)
3603T EDO Module, 120 VDC (3603E replacement during Surge test)
3604E EDO Module, 24 VDC
3607E EDO Module, 48 VDC
3611E SDO Module, 115 VAC (3)
3623 SDO Module, 120 VDC
3624 SDO Module, 24 VDC
Pulse Input
3510 Pulse Input Module
Thermocouple
3706A NITC Input Module
3708E ITC Thermocouple Input Module
Relay Output
3636R ERO Module, N.O., Simplex
Miscellaneous
8105 Blank Module Panel
8107 Seismic Balance Module
Recommended Products
| Allen Bradley | Honeywell | ICS Triplex | Honeywell |
| 1771-PS7 | 51155506-120 | T8902 | 7400166-380 |
| 1756-A17 | 8C-POODA1 | T8431 | 2700 |
| 1785-L20C15 | HF00470-002 | T8220 | 4000093-320 |
| 1756SC-IF8U | 10313/1/1 | T8232 | 2451 |
| 1794-IB8 | 51304848-100 | T8331 | 9662 |
| 1756-CNBR | FC-PDB-0824P | T8202 | 2652-300 |
| 1746SC-IA8I | 51202330-300 | T8901 | 2652-5 7400058-350 |
| 1794-IV16 | 51304487-150 | T8122 | 2401L |
| 1756-OG16 | 51153818-203 | T9432 | 3000110-360 |
| 1746-HSCE | 51305980-836 | T8120 | 4000103-520 |
| 1756-OW16I | 900C73R-0100-44 | T8824 | 4000043-325 |
Our company's products are all genuine imported goods from abroad, which can be tested, worry-free after-sales service, and quality guaranteed.
We have tens of thousands of models and tens of thousands of stocks in stock, welcome to consult!
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
Why do so many customers choose us?
On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
Your trust is the driving force for our continuous progress, submit your requirements immediately to get exclusive quotes
