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WP-9000 series distributor (output loop power supply)
Provide isolated power voltage to two-wire or three wire transmitters on site, and isolate and convert the (4-20) mA signal generated by the transmitt
Product details
The WP-9000 series distributor (output loop power supply) provides isolated power voltage to two-wire or three wire transmitters on site, and isolates and converts the (4-20) mA signal generated by the transmitter before outputting it to the control system or other unit combination instruments. Some signal receiving devices come with a 24V power supply, and the output of the general distributor is an active signal. When connected, power conflicts may occur. Using output loop power supply type can avoid
Eliminate power conflicts and achieve signal isolation.
This power distribution device has independent power supply mode and output circuit power supply interface requirements, with electromagnetic isolation between the power supply input circuit output circuit.
◆ Characteristics
Provide distribution voltage (16.5-28) V to the transmitter.
● Isolation conversion of transmitter (4-20) mA signal input.
● Signal transmission isolation output (4-20) mA.
Output circuit power supply (12-35) V.
● It has independent power supply mode and output circuit power supply interface requirements.
Equipped with a working power indicator light.
● 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:<42mA at 24VDC (one in one out)
＜ 92mA (two in, two out)
Power indicator: Power on LED light on: green
● Input circuit
Transmitter signal input: (4-20) mA
Distribution voltage for driving the transmitter: ≥ 16VDC
Input impedance: Built in input sampling resistor 50 Ω
● Output circuit
Output current (Io): (4-20) mA;
Output circuit power supply voltage (Uo): (12-35) V
Voltage drop (Ud): 3V
Allowable load during current output: RL ≤ (Uo Ud)/Io
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: 1500VAC/1 minute 50Hz
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 115g
◆ External dimensions
Dimensions: Width x Height x Depth=16 x 116 x 110 (mm)
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