Product Details
The Triconex 3704E is a high-density, DC-coupled analog input module built for Tricon Safety Instrumented Systems (SIS). Operating within a Triple Modular Redundant (TMR) architecture, it processes up to 64 commoned input channels to convert field voltage signals into safety logic values.
Signal Processing and Accuracy
The module supports selectable voltage ranges of 0-5 VDC or 0-10 VDC (+6%) with 12-bit resolution across all 64 channels. It provides an input update rate of 75 ms and maintains a conversion accuracy of less than 0.25% of full-scale range across an operating temperature span of 0 deg C to 60 deg C.
Module Configuration and Identification
Designed for high-channel-count monitoring, the 3704E utilizes non-isolated, differential input circuitry where input points share a common return. The front panel features a copper color code for visual identification within the chassis.
| Parameter | Specification |
|---|---|
| Model | 3704E |
| Brand | Triconex |
| Product Category | Analog Input Modules |
| System Architecture | Triple Modular Redundant (TMR) |
| Number of Input Channels | 64 points, commoned |
| Input Type | Differential, DC coupled |
| Input Voltage Range | 0-5 VDC or 0-10 VDC (+6%) |
| Channel Isolation | Non-isolated |
| Input Update Rate | 75 ms |
| Resolution | 12 bits |
| Accuracy | < 0.25% of FSR (0 deg C to 60 deg C) |
| Color Code | Copper |
| Shipping Weight | 4 kg |
Frequently Asked Questions
Q: Are the input channels on the Triconex 3704E individually isolated?
A: No, the 64 input channels are non-isolated and share a common return pathway.
Q: What input voltage ranges does the Triconex 3704E support?
A: The module supports standard analog voltage ranges of 0-5 VDC or 0-10 VDC (+6%).
Q: What is the update speed and resolution for signal conversions on this module?
A: It updates all input channels every 75 ms with a conversion resolution of 12 bits.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
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- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.





























