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WP-8000-EX series thermocouple isolation safety barrier
The WP-8000-EX series thermal resistance isolation safety barrier is used to isolate and convert on-site thermal resistance signals into linear DC sig
Product details
The WP-8000-EX series thermal resistance isolation safety barrier is used to isolate and convert on-site thermal resistance signals into linear DC signals with temperature, and output them to the control system or other unit combination instruments in the safe area.
Intelligent thermal resistance isolation safety barrier. It is possible to configure and set the type and range of thermal resistance.
This isolated safety barrier requires independent power supply, with electromagnetic isolation between the power supply input circuit output circuit.
◆ Characteristics
● Two wire or three wire heating resistor temperature signal input, isolated transmission output.
Intelligent, capable of on-site configuration settings. Fixed types of thermal resistors and temperature range inputs can also be selected.
Modular core design, no need for zero and full adjustment, automatic dynamic calibration of zero and automatic compensation for temperature drift.
Equipped with a working power indicator light.
● Intrinsic safety input circuit [Exia] IIC, 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:<25mA at 24V DC (one in one out)
＜ 40mA (two in and two out)
Power indicator: Power on LED light on: green
● Input signal (Exia IIC hazardous area)
Input channel: Terminals 1, 2, and 3 are connected to thermal resistors. Input thermal resistor types include Pt100, Pt10, Cu50, Cu100, and other types of thermal resistors
Lead resistance: Each wire ≤ 5 Ω
● Output signal (safe zone)
Output current: (4-20) mA
Allowable load for current output: 0~350 Ω (4mA~20mA, 0~20mA output)
Output voltage: (1-5) V
Voltage output impedance: ≤ 500 Ω
Ripple (Vp-p): ＜ 10mV
● Performance indicators
Standard accuracy: ± 0.5% FS, ± 0.2% FS
Temperature drift: ± 0.015%/℃
Response time: ≤ 1s (10 → 90)%
Stable time: ≤ 5s
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 1-output 2-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
● Safety and Explosion proof Certification Parameters
The whole machine meets the requirements of GB3836.1-2000 and GB3836.4-2000
Standard related requirements
Explosion proof grade mark: [Exia] IIC
Security authentication parameters:
Um: 250V Uo: 12V Io: 24mA
Po: 72mW Lo: 10mH Co: 1 μ F
◆ External dimensions
Dimensions: Width x Height x Depth=16 x 116 x 110 (mm)
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