WP-8000-EX series detection terminal isolated safety barrier (HART)

WP-8000-EX series detection terminal isolated safety barrier (HART) provides isolated power supply voltage for the two-wire smart transmitter connected to the dangerous site, and isolates and converts the (4-20) mA signal generated by the transmitter Then it is transmitted to the safe zone control system or other intelligent instruments.

　　 The product supports two-way communication with HART digital signals. Also compatible with non-smart transmitters.

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

◆ Features

　　● Connect to the on-site two-wire smart transmitter.

　　● Provide the transmitter with a distribution voltage ≥ 16V (power supply ≥ 22VDC).

　　● Isolate and transmit the transmitter (4～20) mA signal.

　　● HART signal two-way communication isolation transmission.

　　● (4～20) mA or (1～5) V signal output can be selected, or other required DC signals.

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

　　● With working power indicator.

　　● Single channel, input loop 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, <65mA

　　 Power indicator: power on, LED light on: green

● Input circuit (Exia IIC dangerous area)

　　 input channel: terminal 1-, 2+ wiring (see terminal wiring diagram)

　　Signal input: transmitter (4～20)mA; HART digital signal

　　The power distribution voltage of the drive transmitter: ≥16V

　　 Input impedance: Built-in input sampling resistance 50Ω

● Output circuit (safe area)

　　 output channel: terminal 11 -, 12 + wiring (see terminal wiring diagram)

　　 Output current: (4～20) mA, HART digital signal

　　 Allowable load during current output: 0～350Ω

　　 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/500VDC (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

　　 Structure: card-mounted; modular watch core; ABS material case; plug-in terminal

　　 Machine weight: about 110g

● Safety and explosion-proof certification parameters

　　The whole machine meets the GB3836.1-2000 and GB3836.4-2000 standards

　　 Standard related requirements

　　Explosion-proof grade mark: [Exia]IIC

　　Safety certification parameters:

　　　　 Um: 250V Uo: 28V Io: 93mA

　　　　Po: 0.65W Lo: 2.4 mH Co: 0.03μF