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MS7045 on-site power distribution signal input isolator (one in, three out)
MS7045 on-site power signal input isolator (one in, three out) I. Characteristics ● Isolate and convert the 4-20mA signal input of the two-wire transm
Product details
MS7045 on-site power signal input isolator (one in, three out)
1、 Characteristics
● Isolate and convert the 4-20mA signal input of the two-wire transmitter.
Provide a driving voltage of 16.5-28V to the transmitter.
● Signal transmission isolation output 4-20mA or 1-5V signal output, or other required DC signals.
Modular core design, no need for zero and full adjustment.
Equipped with a working power indicator light.
Single channel, one input, isolated and distributed into three outputs, input circuit short circuit protection.
● Plug and unplug terminal block, DIN rail card installation.
2、 Description
① MS7045 on-site power (distribution) signal isolator is used to provide isolated power voltage to the transmitter on site, and to isolate and convert the 4-20mA signal generated by the transmitter into three independent DC signals for output to the control system or other intelligent instruments.
② This isolator requires independent power supply, with electromagnetic isolation between the power supply input circuit output circuit.
3、 Technical specifications
Product model: MS7045 |
● Performance indicators Standard accuracy: ± 0.1% FS Temperature drift: ± 0.015%/℃ Response time: ≤ 1s (0 → 90%) Stability time: ≤ 3s Impact of power supply voltage variation: ± 0.1% (allowable voltage range) Influence of load resistance change: ± 0.1%/250 Ω Channel isolation: Input output 1 output 2 output 3 power supply isolation Insulation resistance: ≥ 100M Ω/500VDC (AC) Isolation capability: 1500VAC/1 minute 50Hz Electromagnetic compatibility: Complies with the relevant electromagnetic standards of IEC61000 ● Environmental parameters Working temperature: 0~+60 ℃ Storage and transportation temperature: -20 to+80 ℃ Environmental humidity: 5~+95% RH (non condensing) ● Structure and external dimensions Structure: Card mounted modular watch core ABS material chassis plug-in terminal Dimensions: W16 × H116 × D110 (mm), refer to the dimension diagram Whole machine weight: approximately 120g |
4、 Model selection
Ordering Notice
1. Refer to the selection example and write the order model code correctly and standardly.
If no code is selected, it will be recognized as the ordering combination method in Example 1.
Example 1 Input: transmitter 4-20mA
Output: 1 channel 4-20mA; 2 channels 4-20mA; 3 channels 4-20mA
Order code: MS7045-P-A-A-A
Example 2 Input: transmitter 4-20mA
Output: 1 channel 4-20mA; 2 channels 1-5V; 3 channels 1-5V
Order code: MS7045-P-A-1-1
5、 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)
6、 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.
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