Pig Signaller Non-Intrusive

HFD type magnetic explosion-proof Non-Intrusive Pig Signaller is used for pigging oil, gas, water, and other transmission pipelines. It is a ground judgment instrument to judge whether the pig passes or not. It is flexible and convenient to install and disassemble. At the same time, it can meet the requirements of various pipelines for indicators. The operator only needs to wrap and fix the indicator on the outer wall of the pipeline to work. This solves the problem that the mechanical passing indicator is easy to ignite, easy to produce mechanical faults, and not explosion-proof. Moreover, this can reduce the problems that affect the accuracy of ball passing judgment and the false alarm and missed alarm caused by electronic interference.

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Description

 

HFD type magnetic explosion-proof Non-Intrusive Pig Signaller is used for pigging oil, gas, water, and other transmission pipelines. It is a ground judgment instrument to judge whether the pig passes or not. It is flexible and convenient to install and disassemble. At the same time, it can meet the requirements of various pipelines for indicators. The operator only needs to wrap and fix the indicator on the outer wall of the pipeline to work. This solves the problem that the mechanical passing indicator is easy to ignite, easy to produce mechanical faults, and not explosion-proof. Moreover, this can reduce the problems that affect the accuracy of ball passing judgment and the false alarm and missed alarm caused by electronic interference.

Non-Intrusive Pig Signaller Composition

Composition of the Non-Intrusive Pig Signaller:

It is composed of an explosion-proof remote transmission display mechanism TZS and sensing mechanism, removable clamping mechanism, connecting wire, and extension rod. (If an extension rod is required, it is generally used for buried pipelines.) (LCD has a heating function. It can record passing time, store and remember 100 times, and transmit information remotely. Explosion-proof sign D Ⅱ BT6, protection grade IP65.)

So the core sensing mechanism of the magnetic explosion-proof pass-through indicator is composed of an anisotropic magnetoresistance circuit, a balance amplification circuit, a low-pass filter circuit, a trigger circuit, a CPU, etc. The supporting equipment includes a remote switch circuit, display circuit, and reset circuit.

Usage characteristics

When the product works, a pig with magnetic force will pass through. At this time, it will display the passing time of the pig. It will also remotely transmit a switch signal for the pigging process control center to understand the operation of the pig. The display device will simultaneously store the number and time of memory passes. Memory times: 99 times.

Scope of application

  1. Applicable temperature -40~85 ℃.
  2. It is applicable to transmission pipelines of various materials and wall thicknesses.
  3. Two-way operation counting and indication function
  4. It has automatic and manual reset functions
  5. LED LCD screen to record the passing time and times
  6. The sensor is made of stainless steel 304, and the instrument is made of the explosion-proof aluminum alloy casing
  7. The pig should be equipped with a magnetic source (permanent magnet 3000-4500 Gauss)
  8. Applicable to places with explosive gases and flammable media, explosion-proof grade: Exd Ⅱ BT6
  9. Protection grade IP65.
  10. Power supply: four No. 5 batteries (built-in) or 24V DC power supply (selected through switch switching).
  11. The remote control signal (normally open and normally closed).
  12. Control contact capacity: ≤ 3a.
  13. Action time of remote control signal: 3S.

The overall structure of the instrument

Connection: On the right side facing the screen is the connection interface, with a total of 5 connecting lines. Black and red are power connections, which can be connected to a 6-24v DC power supply (red is positive, black is negative).

Note: The internal and external power supply modes of the power supply are switched. The other three lines are remote signal line interfaces. The white line is the common end, the yellow line is normally open (short circuit state measured by multimeter), and the blue line is normally closed. The size of the power interface and remote transmission interface is 3/4nptf. The size of its adapter interface is 1/2nptf.

Precautions for installation and use

  1. Do not hit the display window with heavy objects during installation.
  2. Also, do not use magnetic materials near the sensor.
  3. The pig passing the test shall be equipped with a magnetic block. If there is no magnetic block, it is necessary to install the magnetic block in the attached accessories. Pay attention not to collide with the pipeline at the installation position. We can install it on the flange or in the middle of the pig framework.
  4. At last, the magnetic block is installed on the pig, and the circular direction of the magnetic block is parallel to the sensor base. If space permits, more magnetic blocks are superimposed and installed on the pig. (more than two pieces must be installed for 5 mm thick ones);

Display mechanism usage

  • Firstly, connect the four-wire system wiring at the remote transmission interface. (read: 24V DC, black: ground wire. Two yellow: J-1, J-2 relay nodes (double node 2a)). Or after installing the 5# battery, enter the automatic calibration procedure, and the indicator light is on. Generally, it is completed within 10 seconds. The nixie tube displays the current time and enters the working state.
  • And then, adjust the time. Press the “set OK” key on the front panel, and the number to be adjusted starts to flash. Press the “set” key continuously, and the flashing number shifts to the right. Press the “time adjustment” key to adjust the time. After completion, press the “set OK” key until the next digit ends (there is no flashing number). Please set the timing according to the current time or the required time. Check the time just set and press the “time adjustment” key. Displays the set time.
  • At last, if you need to adjust the time during work, press the “set OK” key. The clock display flashes. According to the above method, the time can be adjusted at this time.

 

Non-Intrusive Pig Signaller

  • In the working state, the clock runs accurately according to the time. (press the “time adjustment” key to display the current time). When the pig passes, the instrument first displays the passing times for 3 seconds, and then the passing time for 3 seconds. At the same time, the power supply +24v is connected to the signal line for remote transmission. The signal line 24V is maintained until the display of the nixie tube ends.
  • Query the number and time of each pass in the past. Press “query” to display the number of times for the next pass. We’ll press it again soon, and it shows 1. Press the “set OK” key again to display the time of the second pass. The display time is the time of each passing ball in the past. And so on N times.
  • Clear times: press the “clear” key to clear all past times. The current time is also displayed. The current time cannot be cleared. Please press “set OK” to change the time.
  • To query whether there is a ball passing, press “query”. If there is no ball passing, only the current time can be displayed. If a ball passes, the number of times is displayed first and then the time is displayed.
  • To query the current time, press the “time adjustment” or “query” key. Displays the current time.

Wiring method of remote transmission line

The red line is connected to 24V dc+. The black line is connected to 24V DC -. The two yellow wires are J-1 and J-2 relay nodes (double node 2a), which can be connected arbitrarily. Its principle is that when the pig with a permanent magnet passes through. The instrument relay node is closed. The closing time is 5 seconds, and the yellow line and the yellow line are connected.

Be careful:

  1. 24V power supply and 5# battery cannot supply power at the same time.
  2. And 24V power supply, not less than 12V, not more than 25V.
  3. 24V power supply and return signal line can be the same power supply. The user needs to connect the power supply to the ground of the equipment.
  4. The field is conditional. A 24V DC power supply is recommended.

Compared with other products, Non-Intrusive Pig Signaller has the following advantages:

  1. Firstly, the product with this structure is very convenient for installation and disassembly. Operators are easy to learn. Just fix it outside the pipe.
  2. Secondly, it does not need to be inserted inside the pipe. Therefore, it can basically meet the requirements of various pipelines for ball indicators. Compared with other products, it does not need to consider the explosion-proof and fire resistance of the machine. And it rarely produces false positives or omissions.
  3. It is convenient to record and observe data. This product can record the time and times of pig passing. And it will record this information. Therefore, it is convenient for operators to understand the relevant information of pig.
  4. The price is reasonable. It is a product with high-cost performance. Its price ratio is very high compared with ordinary products. Therefore, users need to consider the advantages and disadvantages of different pigs in the purchase process.
  5. At last, it is easy to observe, and the display is clear. This product displays pig information through the display. Therefore, the false alarm of information is reduced. It is also convenient for operators to observe.

Our Service

  1. Firstly, many kinds of pig signaller, with a different type to meet different requirements.
  2. Samples will be offered to attest to the quality and our services.]
  3. The fastest feedback!
  4. The fastest delivery time.
  5. 24 hours,7 days online.

We use PLYWOOD CASE as packaging, it has the following advantages: 1. Light weight, clear lines, insulation, high strength, not easy to deformation; 2. No fumigation required.

So if you have any other questions, please contact our professionals to answer them for you.

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