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E-mail
664688125@qq.com
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Phone
18255085484
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Address
23rd Floor, Unit 2, Building 16, Binhu City, Tianchang City, Anhui Province
Anhui Maoshu Instrument Co., Ltd
664688125@qq.com
18255085484
23rd Floor, Unit 2, Building 16, Binhu City, Tianchang City, Anhui Province
MS7021 (MS7022) MS7023 frequency signal input isolator
1、 Characteristics
MS7021 (1 in 1 out), MS7022 (2 in 2 out), MS7023 (1 in 2 out)
·Frequency signal input
·Isolated output 4-20mA or 1-5V
2、 Technical specifications
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·Isolate the frequency signal input and transmit a DC current or voltage signal that is linearly related to the input frequency signal. The frequency signal isolation transmitter adopts an independent DC power supply method. ● Input Input format (optional): A. Open collector - Input frequency range: 0~100 KHz; Or other frequency signals ***Small pulse width: above 4us (high/low level) Detection voltage/current: 5V DC/2mA DC Detection threshold: open below 350 Ω; Turn off 10K Ω or above B. Dry contact switch - Input frequency range: 0~30HZz; Or other frequency signals ***Small pulse width: above 10ms (ON/OFF) Detection voltage/current: 5V DC/2mA DC Detection threshold: below 350Q; Close 10KQ or above C. Voltage pulse Input frequency range: 0~100 KHz; Or other frequency signals Input voltage pulse: 5V, 12V, 24V (note: the one selected at the time of ordering shall prevail) ***Small pulse width: above 4us (high/low level) Detection threshold: When the voltage pulse is 5V High level (VH) above 3V; Low level (VL) below 1V When the voltage pulse is a 12V or 24V voltage pulse, High level VH) above 6V; Low level (VL) below 4V Input impedance: 10K Ω or above Large input voltage between terminals: ± 50V |
● Output Output signal: 4~20mA; 1~5V; Or other designated signals Load resistance: ≤ 550Q when outputting 4-20mA (factory default) When outputting 1-5V, ≥ 100K Ω ● Power supply Power supply voltage range: 20~30VDC Rated supply voltage: 24VDC Current consumption (when powered by 24VDC):<30mA (1 in 1 out) <40mA (1 in 2 out) <48mA (2 inputs and 2 outputs) ● Comprehensive parameters Standard accuracy: ± 0.2% 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

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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.
