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Anhui Maoshu Instrument Co., Ltd

E-mail
664688125@qq.com
Phone
18255085484
Address
23rd Floor, Unit 2, Building 16, Binhu City, Tianchang City, Anhui Province

MS7918 Thermal Resistance Input Signal Isolator (Intelligent Type One In Two Out)

NegotiableUpdate on 08/01

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

MS7918 Thermal Resistance Input Signal Isolator (Intelligent Type) -1. Characteristics 1 in 2 out - Suitable for Pt100, Cu50 and other thermal resistance inputs - Programmable input type and range - Isolated output 4-20mA or 1-5V -2. Technical specifications - Accept thermal resistance signal input, output standard DC signal to control system or other instruments through isolation transformation

Product Details

MS7918 Thermal Resistance Input Signal Isolator (Intelligent Type)

1、 Characteristics

1 in 2 out

·Suitable for thermal resistance inputs such as Pt100 and Cu50

·Programmable input type and range settings

·Isolated output 4-20mA or 1-5V

2、 Technical specifications

·Accept thermal resistance signal input, and output standard DC signal to the control system or other instruments through isolated transmission.

is an intelligent thermal resistance input temperature transmitter that can be programmed with a PC and control software to set the input type and range. And it can verify the zero point and full degree of the output signal.

One input, two outputs. DC power supply mode, with magnetic and electrical isolation between the input and output of the power supply, as well as between each channel.

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

It can be used in conjunction with unit combination instruments, DCS, PLC and other systems, and is widely used in various temperature detection and control systems in industrial production processes.

● Input

(Can be set through PC and software programming)

Thermistor: P1100, Cu50, etc

Temperature range: Depending on the type of sensor connected (see range table)

Connection form of thermal resistance sensor: 2-wire or 3-wire system

Allow wire resistance: Each wire should be below 10 Ω

● Output

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

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

When outputting 1-5V, ≥ 100K Ω

● Power supply

Supply voltage range: 20-30VDC

Rated supply voltage: 24VDC

Current consumption (when powered by 24VDC):<50mA

● Comprehensive parameters

Standard accuracy: ± 0.1% (refer to the table of thermal resistance types, ranges, and measurement errors)

Temperature drift: Basic error/10 ℃

Response time:<10ms

Isolation capability: 2.5KV, 1min.50Hz between input output power supply

Insulation resistance: ≥ 100M Ω/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)

3、 Model selection

MS7918选型表.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.

MS7918接线图.png

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