Service Support

08

2012

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01

Field Application of Signal Isolator


1. Solve common land and avoid interference

     In the transformation of large-scale projects, the problem of common ground between different equipment is often encountered, which is also the reason why the signal interference equipment cannot be collected and processed normally. At this time, users need to adopt a high-density, DIN rail installation of low-cost, high-performance instruments to solve this problem, the most effective way is to install apassive isolatorNANJING PARROKEN TECHNOLOGY CO., LTDP/PA SeriesP-0133Passive Signal Isolator,PA-0133Passive Signal Isolator), it has no power supply, high isolation output channel, at the same time it has the advantages of low price, high-density installation method, simple and easy wiring method.

Selection example:

PA-0133 Passive Signal Isolator-4-20mA/4-20mA or optional ↓

PA-1187 active signal isolator-4-20mA/4-20mA(24V DC supply)

(Any of the above parameters can be customized)

 

2. Sharing process signals between the two places

 Sometimes, users need to monitor all the way to the scene signal in two different places at the same time. The simplest and most economical way is to install a one-in and two-outIsolating distributorNANJING PARROKEN TECHNOLOGY CO., LTDPR/PG Seriessignal isolation distributorPR-1127GG-DDC signal isolation distributor,PG-113/PG-114DC signal distributor "one minute three, one minute four"), it can not only isolate the ground circuit, motor noise and interference caused by some electronic products, but also distribute one signal into two to four identical or different signals, which can be sent to two different receiving devices for monitoring, recording or control.

Selection example:

PR-112 DC signal distributor-4-20mA/4-20mA * 2(220V AC power supply or 24V DC power supply)

PR-212 AC signal distributor-4-20mA/4-20mA * 2 (220V AC power supply or 24V DC power supply)

PR-312 with power distribution isolation distributor-4-20mA/4-20mA * 2(220V AC power supply or 24V DC power supply)

PG-114 DC signal distributor-4-20mA/4-20mA * 4(220V AC power supply or 24V DC power supply)

PG-1132 with power distribution isolation distributor (one in, three out, one in, four out)-4-20mA/4-20mA * 2(220V AC power supply or 24V DC power supply)

(Any of the above parameters can be customized)

 

 

3. Enhanced belt load capacity

Sometimes, the user needs to add a 250 ohm load (PID controller) to the loop, but this exceeds the maximum loop load by 600 ohms. Now the simplest and most economical method is to install a 2-wire ECT with ground input impedance (100 ohms) and high driving load capacity (500 ohms), which can enhance the load capacity of the loop and find space similar to PID controller and other expansion occasions.

Selection example: any product of Nanjing paroken technology co., ltd. P/PR/PA/PG can be customized to increase the carrying capacity.

 

 

4. Resolve power conflicts

In some circuits, users need to connect the 4-wire transmitter to DCS, but DCS supplies power to the input circuit, thus there is a power conflict between the transmitter and DCS. The simplest and most economical way now is to install an interface converter (PA-02Passive distribution isolator,PA-1317distribution isolator,PR-312With distribution isolation distributor,PG-213Isolated distributor (two in and two out)It can be powered by the input or output circuit, so that the normal operation of the entire circuit can be guaranteed and the contradiction of the power supply can be solved.

Selection example:

PA-02 passive power distribution isolator-4-20mA/4-20mA

PA-1317 power distribution isolator-4-20mA/4-20mA(24V DC supply)

PR-312 with power distribution isolation distributor-4-20mA/4-20mA * 2(220V AC power supply or 24V DC power supply)

PG-213 isolation distributor (two in and two out)-4-20mA * 2/4-20mA * 4(220V AC power supply or 24V DC power supply)

PG-1132 with power distribution isolation distributor (one in, three out, one in, four out)-4-20mA/4-20mA * 2(220V AC power supply or 24V DC power supply)

(Any of the above parameters can be customized)

 

 

5. Public power savings

In large-scale renovation projects, many transmitters with different uses need to be installed, including two-wire and four-wire transmitters. If one power supply supplies power to multiple two-wire transmitters, it will cause equipment to supply ground or damage to one transmitter and cause multiple equipment to fail to work normally. At this time, multiple independent power supplies are required to supply power to two-wire transmitters. For the above problems, isolated distributors can be installed to realize the independence of power supply and signal for each two-wire transmitter, save money and ensure equipment safety.

 

Selection example: PA-02 passive power distribution isolator-4-20mA/4-20mA

PA-1317 power distribution isolator-4-20mA/4-20mA(24V DC supply)

PR-312 with power distribution isolation distributor-4-20mA/4-20mA * 2(220V AC power supply or 24V DC power supply)

PG-213 isolation distributor (two in and two out)-4-20mA * 2/4-20mA * 4(220V AC power supply or 24V DC power supply)

PG-1132 with power distribution isolation distributor (one in, three out, one in, four out)-4-20mA/4-20mA * 2(220V AC power supply or 24V DC power supply)

(Any of the above parameters can be customized)