MS6902 two-wire transmitter current signal distribution isolation safety barrier (supports HART pass/two in two out)

NegotiableUpdate on 08/01

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Overview

MS6902 two-wire transmitter current signal distribution isolation safety barrier (supports HART pass/two in two out) I. Description ① MS6902 signal input (HART) isolation safety barrier, the two-wire transmitter current signal distribution isolation safety barrier provides isolated power voltage for the two-wire intelligent transmitter connected to the hazardous site, and isolates and converts the 4-20mA signal generated by the transmitter before transmitting it to the safety zone control system or other intelligent instruments

Product Details

MS6902Two wire transmitter current signal distribution isolation safety barrier (supports)HARTpass through/Two in, two out)

1、 Description
①MS6902Signal input（HART）Isolation safety barrier, distribution of current signals for two-wire transmitters. The isolation safety barrier provides isolated power voltage to the two-wire intelligent transmitter connected to the hazardous site and converts the voltage generated by the transmitter4～20mAAfter signal isolation conversion, it is transmitted to the safety zone control system or other intelligent instruments.
②This product supportsHARTBidirectional communication of digital signals.
②The isolation safety barrier is powered by an independent DC power supply-input-Isolation between outputs.
2、 Characteristics
●Distribute power to the on-site two-wire transmitter
●Two wire transmitter signal4~20mAIsolation transmission,dual input,dual output
●supportHARTCommunication protocol passed
●coordinateDCS/PLCWaiting for the application of control systems or other unit combination instruments.
●Connect to control system: various modelsDCS/PLCofAICard, receiving active signals4～20mASignal.
●Suitable for connected field devices: two-wire intelligent system( HART)Delivery device.
●Equipment is allowed to be located in hazardous areas:0District1District2District;IIADistrictIIBDistrictIICDistrict.
●Installation and terminal wiring:35mmstandardDINRail card installation; The terminal wiring adopts a spring type compression connection.
3、 Technical specifications

●Product model:MS6902
●Model specification (code):
The code indicates the range of signal input or output, and users can freely choose it when placing an order (see selection spectrum).
●Working power supply:
Power supply voltage:20~30VDC
Residual waveWpp：＜5％
Current loss: approximately85mA
Power indicator: When powered onLEDLight on: green
●Input circuit（Exia IICDangerous zone):
Input signal: transmitter DC current signal4～20mA；HARTdigital signal
Input impedance:100Ω
Distribution voltage for transmitter:≥16VDC(Power supply)≥22VDC）
***Large input current limit: approximately24mA
●Output circuit (safe zone):
Output signal:4～20mA；HARTdigital signal
Output circuit power supply voltage（Ue）：12～35V
Output ripple:< 10mVp-p
●Performance indicators:
Standard accuracy:±0.1%FS
Temperature drift:±0.015%/℃
Response time:< 1s（10→ 90%）

Stable time:≤3s
The impact of power supply voltage fluctuations:±0.1%(Allowable voltage range)
The impact of changes in load resistance:±0.1%/250Ω
Channel isolation: isolation between input output power supply
Insulation resistance:≥100MΩ/500V DC（AC）
Isolation ability:2500VAC/1minute50Hz
Isolation voltage between safe and hazardous areas:250VAC
Electromagnetic compatibility: compliant withIEC61000Related anti electromagnetic standards
●Environmental parameters
Working temperature:0～＋60℃
Storage and transportation temperature: -20～＋80℃
Environmental humidity:5～＋95％RH(No condensation)
●Structure and external dimensions:
Structure:centralizers;Modular watch core;ABSMaterial shell;Plug in terminal
External dimensions:W16×H116×D110(mm);Refer to the external dimension diagram
Whole machine weight: approximately110g
●Safety and Explosion proof Certification Parameters:
The whole machine meets the following requirements:GB3836.1-2000andGB3836.4－2000Standard related requirements
　　Explosion proof grade mark: IIC

***High safety voltage (Um): 250VAC/DC

(Terminals 2-3, 4-5) Uo: 26.2V Io: 127mA Po: 0.83W Lo: 1.4mH Co: 0.05 μ F

(Terminal 1-2) Uo: 7.2V Io: 3.7mA Po: 7mW Lo: 2.4mH Co: 4 μ F

4、 Model selection

5、 Dimensions and installation diagram
●install
1.35mmstandardDINRail 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. Suitable for isolating and converting on-site signal inputs: signaltwoEntering and exiting.
2. Suitable for devices connected to the site: two-wire or three wire non intelligent transmitters, active current signals.
3. The area where the on-site equipment is located:0District1District2DistrictIIADistrictIIBDistrictIICDistrictT4~T6Dangerous zone.
4. Safety barrier output connection: can be connected to unit combination instruments andDCS/PLCWaiting for the system to be used in conjunction.

●External dimensions
Width (thickness)×tall×Deep=16×116×110（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 exceed2.5mm²Multiple bundles or single stranded cables.

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