Overview
The communication signal of PHD-11TC-33+ with surge protection function 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.
Specifications
| Input in harzadous area | |
| Input signal | RS-485 Half Duplex Digital Signal |
| Safety side output: | |
| Output signal | RS-485 Half Duplex Digital Signal |
| Transmission delay | ≤10μs |
| Transmission rate | ≤115.2kbps |
| Supply voltage | 20-35VDC |
| Power consumption | ≤40mA (24V power supply) |
| LED indicator | Green: Power indicator Yellow: Signal transmission from safety zone to harzadous zone Red: Signal transmission from harzadous zone to safety zone |
| 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) |
| Electromagnetic compatibility | According to IEC 61326-1(GB/T 18268), IEC 61326-3-1 |
| MTBF | 100000h |
| Wire requirements | Horizontal cutting surface ≥ 0.5mm2; Insulation strength ≥ 500V |
| Applicable field equipments | Communication interface device with RS-485 Half Duplex Digital Signal |
| Installation place | 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 |
| Intrinsically safe certification | |
| Explosion proof mark | [Ex ia Ga]lIC [Ex ia Da]lllC |
| Explosion-proof standard | GB/T3836.1-2021 GB/T3836.4-2021 |
| Terminals 3-4 | Um:250V AC/DC Uo=7.7V DC lo=80mA Po=0.15W Co=6.9μF Lo=5mH |
| Certification body | CQST(China National Quality Supervision and Test Centre for Explosion Protected Electrical Products) Shanghai lightning protection products testing center |
Dimension
Schematic Drawings
