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MS7700 (MS7720) Passive Signal Isolator

NegotiableUpdate on 08/01
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Overview

MS7700 (MS7720) Passive Signal Isolator I. Characteristics MS7700 (1 in 1 out), MS7720 (2 in 2 out) · Isolator without Auxiliary Power Supply · 4-20mA Input, 4-20mA Output II. Technical Specifications Passive Isolator · This is a passive isolator with 4-20mA current signal input and 4-20mA current signal output

Product Details

MS7700 (MS7720) Passive Signal Isolator

1、 Characteristics

MS7700 (1 in 1 out), MS7720 (2 in 2 out)

·Isolator without auxiliary power supply

·4-20mA input, 4-20mA output

2、 Technical specifications

Passive isolator

This is a passive isolator with 4-20mA current signal input and 4-20mA current signal output. When in use, there is no need for an external power supply, and the energy required for its operation comes from the current representing the signal. Passive isolators can effectively solve potential problems in signal interconnection in practical applications, while also effectively suppressing possible interference during signal transmission

Electromagnetic isolation between the input and output circuits of the passive isolator.

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


● Input

Current signal input: 4~20mA

Equivalent input impedance: 100 Ω+load resistance (when input is 20mA)

Voltage drop: ≤ 2V (20mA)

Overload current: ≤ 35mA


● Output

Output current: 4-20mA

15962477734306.png

Output load resistance (RL): Calculation formula RL ≤ (Ui Ud) ÷ 0.02

Output ripple:<10mVp-p

● Comprehensive parameters

Standard accuracy: ± 0.1% (with a load of 100 Ω)

Temperature drift: ± 0.015%/℃

Response time:<10ms

Isolation capability: 2.5KV, 1min, 50Hz between input and output

Insulation resistance: ≥ 100M Ω/500VDC between input and output

Working environment temperature: -20~+60 ℃

Storage environment temperature: -40~+80 ℃

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

Dimensions: 16 × 104 × 110 (mm)


3、 Model selection

MS7700选型表.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.

MS7700接线图.png


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