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Hazardous Area Flow Computers

Contrec offers a wide range of hazardous area flow computers for various ATEX flow applications in challenging environments. These flow computers are designed to be safe and reliable in areas where there is a risk of explosion due to flammable gases, vapors, or dusts.


CONTREC 515 – PP01 – Pressurised Petroleum Flow Computer

The 515 PP01 application is tailored for measuring the flow of pressurized petroleum fluid in accordance with ASTM D1250-04 standards. The instrument's frequency flow inputs can handle a quadrature signal for ISO 6551 level B pulse security, ensuring reliable measurement. Additionally, it accommodates analog inputs for pressure, temperature, and/or density, enabling volume correction to reference conditions for precise measurements.
 
This application appears to be versatile, as it is compatible with a wide range of flowmeter frequency outputs, including various signals such as millivolt, reed switches, Namur proximity switches, and pulse trains, which can be selected using its smart front-panel program. The pressure input plays a crucial role in conducting more accurate volume correction calculations for different fluid groups such as Crude, Lube, Refined, Special, and General.
 
Moreover, for fluid groups like LPG, Gasohol, Ethanol, and User, where pressure input is not part of the calculations, it can still be utilized as a live reading for viewing and logging purposes, showcasing the flexibility of the instrument.
This application seems to offer comprehensive functionality for measuring petroleum fluid flow, catering to specific industry standards and diverse fluid types.
 

 

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CONTREC 515 – FA02 – Add/Subtract Flow Computer - 2 Channel Input (Mass) Flow Computer

The 515 FA02 application pack serves as an add or subtract flow computer designed specifically for mass measurement applications. It is capable of performing addition or subtraction operations on two frequency inputs or two analog inputs. This flexibility allows for diverse integration scenarios, whether it involves signals directly from flowmeters or retransmitted signals from other flow computers, resulting in comprehensive rate and total measurements for each channel as well as the combined result.
The instrument's frequency input is compatible with a wide range of frequency signals, including millivolt signals, reed switches, Namur proximity switches, and pulse trains, which can be selected using its smart front-panel program. Additionally, the analog input can be scaled and configured with filtering, non-linear correction, and cutoff points, offering a high degree of customization to suit specific measurement requirements.
 

 

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CONTREC 515 – FA03 – Add/Subtract Flow Computer - 2 Channel Input (Energy)

The 515 FA03 application pack serves as an add or subtract flow computer designed specifically for energy measurement applications. It is capable of performing addition or subtraction operations on two frequency inputs or two analog inputs. This flexibility allows for diverse integration scenarios, whether it involves collecting retransmitted signals from other flow computers, resulting in comprehensive rate and total measurements for each channel as well as the combined result.
The instrument's frequency input is compatible with a wide range of frequency signals, including millivolt signals, reed switches, Namur proximity switches, and pulse trains, which can be selected using its smart front-panel program. Additionally, the analog input can be scaled and configured with filtering, non-linear correction, and cutoff points, offering a high degree of customization to suit specific measurement requirements.
 

 

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CONTREC 515 – FN01 – Frequency Input Net Oil Flow Computer, Tailored for Mass Flow Meters

The 515 FN01 application is designed to accurately calculate the net oil content in petroleum production fluids containing water. The net oil volume is adjusted to a reference temperature based on ASTM D1250-04 standards. The instrument utilizes the frequency signal from a mass flowmeter, as well as temperature and density analog inputs. By incorporating reference densities for oil and water, along with real-time density and temperature values, it can determine the water cut. Additionally, the instrument is versatile, as it can work with various flowmeter frequency outputs, including millivolt signals, reed switches, Namur proximity switches, and pulse trains via its smart front-panel program selection

 

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CONTREC 515 – FA01 – Add/Subtract Flow Computer - 2 Channel Input (Volume)

The 515 FA02 application pack serves as an add or subtract flow computer designed specifically for volume measurement applications. It is capable of performing addition or subtraction operations on two frequency inputs or two analog inputs. This flexibility allows for diverse integration scenarios, whether it involves signals directly from flowmeters or retransmitted signals from other flow computers, resulting in comprehensive rate and total measurements for each channel as well as the combined result.
The instrument's frequency input is compatible with a wide range of frequency signals, including millivolt signals, reed switches, Namur proximity switches, and pulse trains, which can be selected using its smart front-panel program. Additionally, the analog input can be scaled and configured with filtering, non-linear correction, and cutoff points, offering a high degree of customization to suit specific measurement requirements.
 

 

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CONTREC 425 Flow Computer

The 425 Flow Computer from Contrec is designed to cater to a wide range of flow applications that demand high accuracy and flexibility. It is capable of interfacing with most flowmeters and can accept various types of pulse inputs. The instrument offers the option to continuously display either the Flow Rate or a Resettable Total in engineering units on a large six-digit LCD display. Additionally, a non-resettable Accumulated Total is accessible by pressing the DISPLAY key.
Moreover, it comes with a scaled pulse output, which is suitable for driving remote totalisers, and also provides an 8-24 Volt DC power supply for driving transducers. For added functionality, it is equipped with high/low flow rate alarms that can be output on two form C relays. Additionally, an isolated 4-20mA output is available as an option.
 

 

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