بریر خروجی آنالوگ مدل D5020D مارک GMI

بریر مدل D5020D برای انتقال سیگنال آنالوگ از سیستم کنترل به سایت مورد استفاده قرار میگیرد. دستگاه دارای دو ورودی 4-20 میلی آمپر و دو خروجی است. این مدل قابلیت استفاده به عنوان Duplicator  را دارد. 

General Description:
The single and dual channel Isolating Driver, D5020S and D5020D
module is a high integrity analog output interface suitable for applications requiring
SIL 2 level (according to IEC 61508:2010 Ed. 2) in safety related systems for high risk
industries.
It isolates and transfers a 4-20 mA signal from a controller located in Safe Area
to a load up to 700 Ω in Hazardous Area. It has a high output capacity of 15 V at 20 mA
combined with a low drop across its input terminals.
The circuit allows bi-directional communication signals, for Hart positioner.
In the 4-20 mA input range, a field open or short circuit, reflects a high impedance to the
control device circuit and actuates (de-energizes) the channel fault output transistor
and actuates (energizes) the cumulative fault output available on Power Bus connector.
A fault output signal for each channel is available when mounted on customized
Termination Board. In addition the single channel D5020S provides open collector
transistor output on terminal blocks.
Short circuit fault detection can be enabled (two different levels can be selected) or
disabled via DIP-Switch programming.
Mounting on standard DIN-Rail, with or without Power Bus, or on customized
Termination Boards, in Safe Area / Non Hazardous Location or in Zone 2 / Class I,
Division 2 or Class I, Zone 2.

Supply:
24 Vdc nom (18 to 30 Vdc) reverse polarity protected,
ripple within voltage limits ≤ 5 Vpp, 2 A time lag fuse internally protected.
Current consumption @ 24 V: 70 mA for 2 channels D5020D,
35 mA for 1 channel D5020S with 20 mA output on 500 Ω load.
Power dissipation: 1.3 W for 2 channels D5020D, 0.65 W for 1 channel D5020S
with 24 V supply voltage and 20 mA output on 500 Ω load.
Isolation (Test Voltage):
I.S. Out/In 2.5 KV; I.S. Out/Supply 2.5 KV; I.S. Out/Fault 2.5 KV; I.S. Out/I.S. Out 500 V;
In/Supply 500 V; In/In 500 V; Fault/In 500 V; Fault/Supply 500V; Fault/Fault 500 V.
Input:
4 to 20 mA with ≤ 2.5 V voltage drop, reverse polarity protected in normal operation,
≥ 5 KΩ impedance (≈ 2 mA sinking from 10 to 30 Vdc) when fault condition detected.
Output:
4 to 20 mA, on max. 700 Ω load.
Response time: 25 ms (0 to 100 % step change).
Output ripple: ≤ 20 mVrms on 250 Ω communication load on 0.5 to 2.5 KHz band.
Frequency response: 0.5 to 2.5 KHz bidirectional within 3 dB (Hart protocol).