Overview
Isolated safety barrier at detection side: PHD-11HD-21, analog input and output, single input and single output.
The isolated barrier can isolate and transmit the 4~20mA signal or DC 4~20 mA signal generated by the transmitter in the dangerous area to the safe area. When the transmitter is two-wire or three-wire system, the safety barrier provides power for the transmitter.
This product needs independent power supply.
This product supports HART signal and disconnection alarm.
Specifications
| Supply voltage | 20~35VDC, power consumption<1.5W (when supply power 24VDC, transmitter input, output 20mA) |
| Output power supply with provided power | When the circuit output is 20mA, the provided voltage is≥16V |
| Input signal | Two-wire or three-wire transmitter or current source signal (HART) |
| Output signal | 4~20mA (HART) |
| Allowable output load capacity | 0~500Ω (customizable) |
| Output accuracy | 0.1%F.S (Typical value: 0.05% F.S) |
| Temperature drift | 0.005% F.S/℃ |
| Number of input and output | 1 input 1 output |
| Applicable field equipments | 2-wire, 3-wire transmitter and current source signal, this product is suitable for ABB, Fisher, Rosemount, Honeywell 11, as well as 3351, EJA, SIEMENS and other products with imported technology |
| Temperature parameter | Working temperature: -20℃~+60℃, storage temperature: -40℃~+80℃ |
| Relative humidity | 10%~95% RH no condensation |
| Insulation strength | Between intrinsically safe side and non-intrinsically safe side (≥3000VAC/min); between power supply and non-intrinsically safe side (≥1500VAC/min) |
| Insulation resistance | ≥100MΩ (between input/output/power supply) |
| External dimensions | Thickness 15.8mm * width 104.8mm * high 116.1mm |
| Electromagnetic compatibility | According to IEC 61326-1 (GB/T 18268), IEC 61326-3-1 |
| Explosion-proof mark | [Exia Ga]IIC, [Exia Da]IIIC |
| Functional safety certification | SIL2 according to IEC 61508 EN 61511 standards |
| Certification body | CQST(China National Quality Supervision and Test Centre for Explosion Protected Electrical Products) |
| Certified parameters (between terminals 1-3) Certified parameters (between terminals 2-3,2-1) |
Um=250V Uo=7.2V Io=-- Po=-- Co=12μF Lo=-- Um=250V Uo=28V Io=93mA Po=0.65W Co=0.083μF Lo=4.2mH |
| Installation site requirements | It can be connected with instruments in 0 zone with ⅡA, ⅡB, ⅡC dangerous gas |
| MTBF | ≤100000h |
Wiring diagram
