Communication Input
- Isolated Safety Barriers
- Signal Isolators
- Surge Protective Devices
- Safety Relays
- Isolated Intelligent I/O Modules
- Intelligent Gateways
- Industrial Data Optical Transceivers
- Online Dew Point Analyzers
- Data Acquisition Modules
- HART data converter
- Terminal Board
PHD-11TC-33*
Overview
The communication signal of PHD-11TC-33* is input into the isolated safety barrier, which can realize the two-way communication of RS-485 Half Duplex digital signal in the dangerous area and the safe area. This product needs independent power supply, and the power supply, input and output are isolated.
In model letter: PHD-11C-33* the character "*" represents the provided voltage, and the regulations are as follows:
| Code | Provided voltage, current |
| No | No provided power |
| A | 5V |
| B | 6V |
| C | 12V |
| F | 24V |
| H | User defined |
* bus terminal power supply, please see appendix for details.
| Supply voltage | 20~35V DC,Power consumption: ≤170mA (24V power supply, 5V/200mA power distribution.) |
| Input signal | RS485 half-duplex digital signal |
| Output signal | RS485 half-duplex digital signal |
| Number of input and output channels | 1 input 1 output |
| Applicable field equipments | Equipment with RS485 half-duplex communication interface |
| Transmission delay | ≤10 μs |
| Receiving and transmitting switching time | ≥20ms |
| Temperature parameters | Working temperature: -20℃~+60℃, storage temperature:-40℃~+80℃ |
| Relative humidity | 10%~95% RH no condensation |
| Dielectric strength | Between intrinsically safe side and non-intrinsically safe side (≥ 3000VAC/min); between power supply and non-intrinsically safe terminal (≥ 1500VAC/min) |
| Insulation resistance | ≥100MΩ (between input/output/power supply) |
| External dimensions | Thickness 12.5mm x width 108mm x high 118mm |
| Electromagnetic compatibility | According to IEC 61326-1(GB/T 18268), IEC 61326-3-1 |
| Explosion-proof mark | [Ex ia Ga] IIC [Ex ia Da] ⅢC |
| Certification Body | CQST(China National Quality Supervision and Test Centre for Explosion Protected Electrical Products) |
| Terminals 1-2 | Um：250V AC/DC Uo=17.8V DC Io=260mA Po=1.2W Co=0.22μF Lo=0.25mH |
| Terminals 3-4 | Um：250V AC/DC Uo=7.7V DC Io=80mA Po=0.15W Co=6.9μF Lo=5mH |
| Installation site Requirements | Installed in a safe zone, it can be connected to intrinsic safety instruments in hazardous areas up to Zone 0, IIC, Zone 20, and IIIC |
| MTBF | ≤100000h |
Note: The power rail function is an optional function, and users need to specify
the power supply method when placing an order
The selection of power rail connectors can refer to page 89 of the "Annex"
PHD-11TC-33A-23
PHD-11TC-33*