WP-8000-EX series detection terminal isolated safety barrier

The WP-8000-EX series detection terminal isolation safety barrier is a DC signal input connected to a dangerous situation. After the isolation limitation of the safety barrier, it is converted into a standard process signal and output to the control system or other intelligent instruments in the safe area.

　　 This isolated safety barrier requires independent power supply, electromagnetic isolation between the power supply-input circuit-output circuit.

◆ Features

　　● DC signal input for various intrinsically safe equipment at dangerous sites.

　　● Standard analog signal electrical isolation.

　　● Linearization conversion output, selectable (4～20)mA or (1～5)V signal and other required DC signals.

　　● Modular watch movement design, no need for zero and full scale adjustment.

　　● With working power indicator.

　　● Intrinsically safe input circuit [Exia]IIC, input circuit overcurrent protection.

　　● Plug and unplug terminal blocks, DIN rail card installation.

● Power supply

　　 Power connection: independent terminal 13 -, 14 +, can be plugged and unplugged

　　Power supply voltage: (20～30)VDC

　　Current consumption: at 24VDC, <25mA (one in and one out)

　　　　　　　　　　　　＜40mA (one input and two output)

　　　　　　　　　　　　＜50mA (two in and two out)

　　 Power indicator: power on, LED light on: green

● Input signal (Exia IIC dangerous area)

　　 Current signal: (4～20)mA

　　 Voltage signal: 1～5V

　　 Input impedance: Built-in input resistance 50Ω

● Output signal (safe area)

　　 Output current: (4～20)mA

　　 Allowable load during current output: 0～350Ω (4mA～20mA, 0～20mA output)

　　 Output voltage: (1～5)V

　　Voltage output impedance: ≤500Ω

　　 ripple (Vp-p): <10mV

● Performance Index

　　Standard accuracy: ±0.5%FS, ±0.2%FS

　　 Temperature drift: ±0.015%/℃

　　 Response time: ≤1s (10→90)%

　　 Stable time: ≤3s

　　 Influence of power supply voltage fluctuation: ±0.1% (allowable voltage range)

　　 Influence of load resistance change: ±0.1%/250Ω

　　 Channel isolation: isolation between input-output-power supply

　　 Insulation resistance: ≥100MΩ/500V DC (AC)

　　 Isolation capacity: 2500VAC/1 minute 50Hz

　　 Maximum explosion-proof voltage: 250VAC

　　Anti-electromagnetic compatibility: in line with IEC 61000 related anti-electromagnetic standards

● Environmental parameters

　　Working temperature: (-20～＋60)℃

　　Storage temperature: (-40～＋80)℃

　　Environmental humidity: (5～＋95)%RH (no condensation)

● Structure

　　 Clip-on type; Modular watch core; ABS material case; Plug-in terminal

　　 Machine weight: about 110g

● Safety and explosion-proof certification parameters

　　The whole machine meets GB3836.1-2000 and GB3836.4－2000]

　　 Standard related requirements

　　Explosion-proof grade mark: [Exia]IIC

　　Safety certification parameters:

　　　　 Um: 250V Uo: 10.5V Io: 6mA

　　　　Po: 15.8mW Lo: 10mH Co: 1.6μF