MS7047 Isolation Distributor (Supports output circuit power supply)
1、 Characteristics
2 in 2 out
·Provide distribution voltage to the transmitter
·4-20m isolated transmission
·Independent DC power supply and support output circuit power supply
2、 Technical specifications
·Provide isolated power voltage to two-wire or three wire transmitters on site, and isolate and convert the 4-20mA signal generated by the transmitter before outputting it to the control system or other instruments. ·The isolation distributor adopts an independent DC power supply method and supports output circuit power supply, with isolation between the power supply input output. ·Standard 35mm DIN rail card installation. Pull out plug terminals with spring compression connection. ● Input Input signal: 4~20mA Input impedance: 24 Ω Power distribution for transmitter: ≥ 18V (factory default) at 20mA. If larger power distribution is required (e.g. ≥ 22V), please specify when ordering Maximum input current: approximately 24mA ● Output Output current (lo): 4~20mA Output circuit supply voltage (Ue): 12~35V Voltage drop (Ud): 3V Output load resistance (RL): Calculation formula RL ≤ (Ue Ud) ÷ 0.02 Output ripple:<10mVp-p (Note: The selection of power supply voltage for the output circuit should be determined based on the size of the load. If the voltage is too high and the load is very small, it will aggravate the heating condition of the isolator.) |
● Power supply Supply voltage range: 20-30VDC Rated supply voltage: 24VDC Current consumption (when powered by 24VDC): <38mA (1 in 1 out); <57mA (1 in 2 out); <90mA (2 in 2 out) ● Comprehensive parameters Standard accuracy: ± 0.1% Temperature drift: ± 0.015%/℃ Response time:<10ms Isolation capability: 2.5KV, 1min, 50Hz between input output power supply Insulation resistance: ≥ 100MQ/500VDC between input output power supply Working environment temperature: -20~+60 ℃ Storage environment temperature: -40-+80 ℃ Shell material/protection level: PC (polycarbonate) material/IP20 Dimensions: 16 × 116 × 110 (mm)
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3、 Model selection
4、 Dimensions and installation diagram
● Installation
1.35mm standard DIN rail card installation. Please pay attention to the stability and firmness of the card position during installation.
2. Install vertically as much as possible to facilitate heat dissipation inside the instrument.
● Typical applications
1. Used to provide distribution voltage to on-site transmitters and isolate and convert input signals.
2. Devices connected to the site: Active electrical signals from two-wire or three wire non smart transmitters.
3. Connect to the control system (or other unit combination instruments): The AI card of each DCS/PLC receives current or voltage signals.
● External dimensions
Width (thickness) x height x depth=16 x 116 x 110 (mm)
5、 Terminal wiring diagram
Terminal wiring: Plug and unplug terminal blocks, connected by self boosting spring type compression. The cross-sectional area of the wire shall not exceed 2.5mm2Multiple bundles or single stranded cables.