WP-8000-EX series thermocouple isolated safety barrier

WP-8000-EX series thermocouple isolation safety barrier, receives thermocouple signals or other millivolt signals in hazardous areas on site, after isolation and linearization, it is converted into linearized DC signals and output to the control system or other in the safe area Unit combination meter.

　　Intelligent thermocouple isolation safety barrier. The thermocouple type and measuring range can be configured and set.

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

◆ Features

● Thermocouple temperature transmission and isolation output.

　　● Intelligent, can carry out on-site configuration settings. You can also select a fixed thermocouple type and temperature range input.

　　● Modular watch movement design, no need for zero and full scale adjustment, automatic dynamic calibration of zero point, automatic temperature drift compensation.

　　● 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, <30mA (one in and one out)
　　　　　　　　　　　　＜45mA (one input and two output)

　　 Power indicator: power on, LED light on: green

● Input circuit (Exia IIC dangerous area)

　Input thermocouple type: K, E, S, B, R, T, N, W, J and other types of thermocouples

　　 Optional input millivolt signal: (-5～60) mV; or specified millivolt voltage range

●Output circuit (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

Standard accuracy: ±0.5%FS, ±0.2%FS

　　 Temperature drift: ±0.015%/℃

　　 Response time: ≤1s (10→90)%

　　 Stable time: ≤5s

　　 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

　　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 the relevant requirements of GB3836.1-2000 and GB3836.4-2000 standards

　　Explosion-proof grade mark: [Exia]IIC

　　Safety certification parameters:

　　 Um: 250V Uo: 28V Io: 93mA

　　Po: 0.65W Lo: 2.4 mH Co: 0.05μF
 

◆ Dimensions

　Dimensions: width × height × depth = 16 × 116 × 110 (mm)