• 制造商:MTL儀器公司
• 產(chǎn)品編號(hào):MTL4541
• 產(chǎn)品類型:重復(fù)供電
• 16ch AIO 4-20mA
• 4/20mA、HART、2線或3線變送器
• 通道數(shù)量:一個(gè)
• 變送器位置:T4 IIC 0區(qū)-6危險(xiǎn)區(qū)（如果經(jīng)過(guò)適當(dāng)認(rèn)證），分區(qū)。1、A組危險(xiǎn)場(chǎng)所
• 安全區(qū)域輸出
• 信號(hào)范圍:4至20mA
• 欠量程/超量程:0至24mA
• 安全區(qū)域負(fù)載電阻（mtlx 541）:24mA時(shí)為0至360歐，20mA時(shí)為0至450歐
• 安全區(qū)域負(fù)載（MTLx541S）:吸電流:600ω。
• 電壓源:24V直流電
• 安全區(qū)域電路輸出電阻:》1MO
• 安全區(qū)電路紋波小于50 A峰峰值
• 危險(xiǎn)區(qū)域輸入:信號(hào)范圍:0至24mA（包括超量程），變送器電壓:20mA時(shí)為16.5V
• 20°C時(shí)的傳輸精度:優(yōu)于15 A
• 溫度漂移《0.8 A/ C
• 響應(yīng)時(shí)間:50秒內(nèi)穩(wěn)定在最終值的10%以內(nèi)
• 支持的通信:HART（僅終端1和2）
• LED指示燈:綠色:電源指示
• 電流消耗（20mA信號(hào)）:24V時(shí)為51mA
• 單元內(nèi)功耗（帶20mA信號(hào)）:MTLx541 0.7W @ 24V dc，MTLx541S 1.0W @ 24V dc
• 安全描述
  端子2至1和3:Uo = 28V Io = 93mA Po = 651 MW Um = 253v rms或dc
  端子1至3:簡(jiǎn)單儀器=1.5V、=0.1A和= 25mW無(wú)需進(jìn)一步認(rèn)證即可連接到開路電壓《28V的任何IS回路中
• 裝運(yùn)重量:2千克

The MTLx541 provides a fully-floating dc supply for energising a conventional 2- or 3-wire 4/20mA transmitter, which is located in a hazardous area, and repeats the current in another floating circuit to drive a safe-area load. For HART 2-wire transmitters, the unit allows bi-directional communications signals superimposed on the 4/20mA loop current. Alternatively, the MTLx541S acts as a current sink for a safe-area connection rather than driving a current into the load.
Separately powered current sources, such as 4-wire transmitters, can be connected but will not support HART communication.

• Manufacturer : MTL Instruments
• Product No. : MTL4541
• Product type : Repeated Power Supply
• 16ch AIO 4-20mA
• 4/20mA, HART®, 2- or 3-wire transmitters
• Number of channels : One
• Location of transmitter : Zone 0, IIC, T4–6 hazardous area if suitably certified, Div. 1, Group A hazardous location
• Safe-area output
• Signal range: 4 to 20mA
• Under/over-range: 0 to 24mA
• Safe-area load resistance (MTLx541) : @ 24mA: 0 to 360O @ 20mA: 0 to 450O
• Safe-area load (MTLx541S) : Current sink: 600O max.
• Maximum voltage source: 24V dc
• Safe-area circuit output resistance: > 1MO
• Safe-area circuit ripple : < 50µA peak-to-peak
• Hazardous-area input : Signal range: 0 to 24mA (including over-range), Transmitter voltage: 16.5V at 20mA
• Transfer accuracy at 20°C : Better than 15µA
• Temperature drift : < 0.8µA/°C
• Response time : Settles to within 10% of final value within 50µs
• Communications supported : HART (terminals 1 & 2 only)
• LED indicator : Green: power indication
• Maximum current consumption (with 20mA signal) : 51mA at 24V
• Power dissipation within unit (with 20mA signal) : MTLx541 0.7W @ 24V dc, MTLx541S 1.0W @ 24V dc
• Safety description
  Terminals 2 to 1 and 3: Uo=28V Io=93mA Po=651mW Um = 253V rms or dc
  Terminals 1 to 3: Simple apparatus =1.5V, =0.1A and =25mW; can be connected without further certification into any IS loop with an open-circuit voltage <28V
• Shipping Weight : 2 Kg