Products Description
| Company Information | |||
| [email protected] | |||
| Mobile | +8613666033393 | ||
| +8613666033393 | |||
| 13666033393 | |||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China |
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 3351S2 |
| Input Type | Analog Current (4–20 mA) |
| Input Channels | 32 channels (commoned inputs) |
| Input Range | 4–20 mA (supports 6% over-range) |
| Calibration | Factory-calibrated for life; no manual calibration required |
| Self-Diagnostics | Integrated; detects stuck-at faults in < 500 ms (typical) |
| Voting Method (TMR) | Mid-value selection used in TMR mode |
| Voting Method (Duplex) | Average value used in Duplex mode |
| Redundancy | Supports hot-spare configuration |
| Bus Interface | Triplicated RS-485 I/O bus (2 Mbps HDLC) |
| Power Supply | Redundant 24 VDC sources |
| Mounting | Installed on Model 2351 Baseplate |
| LED Indicators | PASS, FAULT, ACTIVE, FIELD POWER |
| Operating Temperature | 0°C to 60°C (extended -20°C to +70°C) |
| Storage Temperature | -40°C to +85°C |
| Humidity | 10% to 95% non-condensing |
| Dimensions (W x H x D) | 166.7 x 247.9 x 62.4 mm |
| Weight | 1.4 kg |
FAQ
Frequently Asked Questions (FAQ)
Q1: What type of signals does the 3351S2 module accept?
A1: The module accepts 4–20 mA analog current signals on all 32 input channels.
Q2: Is manual calibration required for the 3351S2?
A2: No. The module is factory-calibrated and guaranteed to remain in calibration for the life of the product.
Q3: Can the 3351S2 operate with a hot-spare module?
A3: Yes. It fully supports a hot-spare configuration, allowing automatic failover in the event of a module fault.
Q4: What diagnostic features are included in the 3351S2?
A4: It includes built-in self-test circuitry that detects stuck-at and accuracy faults typically in less than 500 milliseconds.
Q5: How does the Trident system handle input signal discrepancies in TMR mode?
A5: The system uses a mid-value voting algorithm across the three channels to ensure reliability and safety.
Q6: What is the input bus type used by the 3351S2?
A6: It uses a triplicated RS-485 I/O bus operating at 2 Mbps with HDLC protocol for data integrity.
Q7: Does the module have any visual fault indicators?
A7: Yes. The front panel includes LED indicators for PASS, FAULT, ACTIVE, and FIELD POWER conditions.
Q8: What is the operating temperature range for the 3351S2?
A8: The standard operating range is 0°C to 60°C, with extended support from -20°C to +70°C.
Tags
Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
