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WP-8000-EX series detection end isolated safety barrier (HART)
Provide isolated power voltage to the two-wire intelligent transmitter connected to the hazardous site, and isolate and convert the (4-20) mA signal g
Product details
The WP-8000-EX series detection end isolated safety barrier (HART) provides isolated power voltage for two-wire intelligent transmitters connected to hazardous sites, and isolates and converts the (4-20) mA signal generated by the transmitter before transmitting it to the safety zone control system or other intelligent instruments.
This product supports bidirectional communication of HART digital signals. Simultaneously compatible with non smart transmitters.
This isolated safety barrier requires independent power supply, with electromagnetic isolation between the power supply input circuit output circuit.
◆ Characteristics
● Connect to on-site two-wire intelligent transmitters.
Provide the transmitter with a distribution voltage of ≥ 16V (power supply ≥ 22VDC).
Isolate and transmit the transmitter (4-20) mA signal.
● HART signal bidirectional communication isolated transmission.
● Optional (4-20) mA or (1-5) V signal output, or other required DC signals.
Modular core design, no need for zero and full adjustment.
Equipped with a working power indicator light.
Single channel, input circuit overcurrent protection.
● Plug and unplug terminal block, DIN rail card installation.
● Working power supply
Power wiring: independent wiring terminals 13-, 14+, can be plugged and unplugged with power on
Power supply voltage: (20-30) VDC
Current loss:<65mA at 24VDC
Power indicator: Power on LED light on: green
● Input circuit (Exia IIC hazardous area)
Input channel: Terminal 1-, 2+wiring (see terminal wiring diagram)
Signal input: transmitter (4-20) mA; HART digital signal
Distribution voltage for driving transmitter: ≥ 16V
Input impedance: Built in input sampling resistor 50 Ω
● Output circuit (safe zone)
Output channel: Terminal 11-, 12+wiring (see terminal wiring diagram)
Output current: (4-20) mA, HART digital signal
Allowable load during current output: 0-350 Ω
Ripple (Vp-p): ＜ 10mV
● Performance indicators
Standard accuracy: ± 0.5% FS, ± 0.2% FS
Temperature drift: ± 0.015%/℃
Response time: ≤ 1s (10 → 90)%
Stability time: ≤ 3s
Impact of power supply voltage variation: ± 0.1% (allowable voltage range)
Influence of load resistance change: ± 0.1%/250 Ω
Channel isolation: isolation between input output power supply
Insulation resistance: ≥ 100M Ω/500VDC (AC)
Isolation capability: 2500VAC/1 minute 50Hz
Maximum explosion-proof voltage: 250VAC
Electromagnetic compatibility: Complies with relevant electromagnetic standards of IEC 61000
● Environmental parameters
Working temperature: (-20~+60) ℃
Storage temperature: (-40~+80) ℃
Environmental humidity: (5~+95)% RH (without condensation)
● Structure
Structure: card mounted; Modular watch core; ABS material casing; Plug in terminal
Whole machine weight: approximately 110g
● Safety and Explosion proof Certification Parameters
The whole machine meets the standards of GB3836.1-2000 and GB3836.4-2000
Quasi relevant requirements
Explosion proof grade mark: [Exia] IIC
Security authentication parameters:
Um: 250V Uo: 28V Io: 93mA
Po: 0.65W Lo: 2.4 mH Co: 0.03 μ F
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