WP-9000 series DC signal converter (output loop power supply)

WP-9000 series DC signal converter (output loop power supply), which converts various input DC signals through isolation and limited energy processing, converts them into required DC signals and outputs them to the control system or other unit combination meters. Part of the signal receiving equipment has its own 24V power supply. Generally, the output of the converter is an active signal, and power conflicts will occur when connected. Using the output loop power supply type will avoid power conflicts and achieve signal isolation.

　　 This converter has independent power supply mode and output circuit power supply interface requirements, and electromagnetic isolation between power supply-input circuit-output circuit.

◆characteristic

● DC signal input for field equipment.

　　● Standard analog signal electrical isolation.

　　● Signal transmission isolated output (4～20) mA.

　　● The output loop power supply (12～35)V.

　　● With independent power supply mode and output loop power supply interface requirements.

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

　　● With working power indicator.

　　● 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, ＜22mA (one in and one out)

　　　　　　　　　　　　＜40mA (one input and two output)

　　 Power indicator: power on, LED light on: green

Input signal

Transmitter signal input: (4～20) mA

　　 Input impedance: Built-in input resistance 50Ω

Output signal

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

　　 Note: The selection of the output circuit power supply voltage should be determined according to the size of the load. Too high voltage and small load will aggravate the heating condition of the isolator.

● Performance

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: 1500VAC/1 minute 50Hz

　　Anti-electromagnetic compatibility: Comply 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 115g

◆ Dimensions

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