Anhui Maoshu Instrument Co., Ltd
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MS7053T DC signal isolator (one output supports loop power supply, one input and two outputs)
MS7053T DC Signal Isolator (One output supports loop power supply) 
 1. Characteristics 1 in 2 out 
 · DC signal isolation distribution, one channel i
Product details

MS7053T DC signal isolator (one output supports loop power supply)

1、 Characteristics

1 in 2 out

·Isolation distribution of DC signals, with one channel input and two channels isolated output

·One output 4-20mA (supports output circuit power supply)

·The second output is a DC current or voltage signal

2、 Technical specifications

·Accept DC signal input from various devices on site, and after isolation, interference suppression, and other processing. Divide the input DC signal into two signal outputs. The first output is 4-20mA, and the second output is 4-20mA or 1-5V.

DC power supply mode, the first output of the instrument is loop power supply, and the power supply is isolated between the input and output channels.

Standard 35mm DIN rail card installation. Plug and unplug terminal block with spring compression connection.


● Input

Input signal: 4-20mA, 1-5V, or other specified signal

Input impedance: 24 Ω for current input; Voltage input=500k Ω


● Output

First 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

(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.)

Second output

Output signal: 4~20mA, 1-5V, or other specified signal

Load resistance: ≤ 550 Ω when outputting 4-20mA (factory default)

When outputting 1-5V, ≥ 100K Ω

Output ripple:<10mVp-p

● Power supply

Power supply voltage range: 20~30VDC

Rated supply voltage: 24VDC

Current consumption (when powered by 24VDC):<60mA


● 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 to+60 ℃

Storage environment temperature: -40 to+80 ℃

Shell material/protection level: PC (polycarbonate) material/IP20

Dimensions: 16 × 116 × 110 (mm)


3、 Model selection

blob.pngMS7055选型图.pngMS7055选型图.png

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)

外形尺寸图.png

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.

MS7053T接线图.png


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