VTI
- 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-11TM-11
Overview
The vibration sensor signal is input into the isolated safety barrier, which can realize the 1: 1 isolated transmission of the negative voltage signal output by the vibration sensor in the dangerous area to the safe area, and can transmit AC and DC signals respectively, which has high anti-interference function. The circuit provides isolated power supply for the field instruments.
This product needs independent power supply, and the power supply, input and output are isolated.
| Input in harzadous area | |
| Input signal | -20V--0.5V |
| Distribution voltage | Open circuit voltage >-25V and 20mA: ≤-18V |
| Safety side output: | |
| Output signal | -20V--0.5V |
| Load resistance | RL≥20kΩ |
| Supply voltage | 20-35VDC |
| Power consumption | ≤60mA (24VDC power supply, when 20mA) |
| LED indicator | Green: Power indicator |
| DC transmission accuracy | <±50mV |
| AC transmission accuracy | 0Hz~1kHz,±1% |
| 1kHz~10kHz,-2%~+1% | |
| 10kHz~20kHz,-5%~+1% | |
| Phase response | Less than 10 μ S is equivalent to |
| -0.72° 200Hz | |
| -2° 600HZ | |
| -3.6° 1kHz | |
| -36° 10kHz | |
| -72° 20kHz | |
| 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 | Cross section ≥ 0.5mm²; Insulation strength ≥ 500V |
| Applicable field equipments | Vibration sensor, negative voltage generator |
| 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 |
| Safety certification | |
| Explosion proof mark | [Ex ia Ga]lIC [Ex ia Da]lllC |
| Explosion-proof standard | GB/T3836.1-2021 GB/T3836.4-2021 |
| Terminals4-5-6 | Um：250V AC/DC Uo=26.5V DC Io=93mA |
| Po=0.687mW Co=0.095μF Lo=4.2mH | |
| Certification body | CQST(China National Quality Supervision and Test Centre for Explosion Protected Electrical Products) |
PHD-11TC-33A-23
