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WP-8000-EX series operation end isolation safety barrier
The WP-8000-EX series operating end isolation safety barrier receives (4-20) mA signals from regulators or operators located in the safety zone, and t
Product details
The WP-8000-EX series operating end isolation safety barrier receives (4-20) mA signals from regulators or operators located in the safety zone, and transmits them through this isolation safety barrier to reproduce and drive intrinsically safe instruments such as electrical (I/P) converters, valve positioners, various linear actuators, display devices, etc. located in hazardous areas.
This isolated safety barrier requires independent power supply, with electromagnetic isolation between the power supply input circuit output circuit.
◆ Characteristics
● Drive intrinsically safe equipment at hazardous sites, with a load of up to 750 Ω.
(4-20) mA input, isolated output (4-20) mA.
Modular core design, no need for zero and full adjustment.
Equipped with a working power indicator light.
● Intrinsic safety output circuit [Exia] IIC, output 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:<80mA at 24VDC
Power indicator: Power on LED light on: green
● Input signal (safe zone)
Current input: (4-20) mA
Input impedance: 50 Ω (one in, one out)
100 Ω (two in, two out)
Input pressure drop:<4V at 20mA
● Output signal (Exia IIC hazardous area)
Output current: (4-20) mA
Maximum load during current output: 350 Ω (4mA~20mA, 0-20mA output)
Output resistance:>2M 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
Card mounted type; Modular watch core; ABS material casing; Plug in terminal
Whole machine weight: approximately 110g
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