FOXBORO E69F-T12-JRS Field Mounted Current to Pneumatic Converter

Flexible Current Ranges: The E69F - T12 - JRS can accept a standard direct current input signal with multiple range options. It can work with input signals in the ranges of 4 to 20 mA DC, 4 to 12 mA DC, or 12 to 20 mA DC. This flexibility allows it to be easily integrated into different industrial setups, whether they are using full - scale or split - range control strategies. For example, in a chemical plant where different sensors may output signals within these various ranges based on the specific process requirements, the E69F - T12 - JRS can readily adapt and process these signals accurately.

Impedance Compatibility: With an impedance of 170 ohms, it is well - equipped to handle the electrical load from connected devices. This impedance value is optimized to ensure stable signal transmission and reception, minimizing signal distortion and interference. In an industrial network with multiple electrical components connected in series or parallel, the E69F - T12 - JRS can maintain a consistent and reliable connection, ensuring the integrity of the input signal.

Proportional Pneumatic Output: It converts the received electrical input signal into a proportional pneumatic output signal. The output signal range is 20 to 100 kPa ( which is equivalent to 3 to 15 psi or 0.2 to 1.0 bar or kg/cm2 ). This output range is widely used in pneumatic control systems, such as those in valve actuators, where a precise pneumatic pressure is required to control the position or flow rate. In a water treatment plant, the E69F - T12 - JRS can accurately convert the electrical control signal from a programmable logic controller ( PLC ) into a pneumatic signal that precisely controls the opening and closing of pneumatic valves, ensuring the proper flow of water through the treatment process.

Direct or Reverse Action: The converter offers the option of direct or reverse action. This means that depending on the requirements of the industrial process, the output pneumatic signal can either increase or decrease in proportion to the increase in the input electrical signal. In a heating system, for instance, if a direct action is set, an increase in the electrical control signal from a temperature sensor will result in an increase in the pneumatic pressure, which may be used to open a valve and allow more hot water to flow, thereby increasing the temperature. Conversely, in a cooling system, a reverse action may be selected, where an increase in the electrical signal leads to a decrease in the pneumatic pressure, closing a valve to reduce the flow of coolant.

Explosion - Proof Design: The enclosure type “T” indicates a threaded cover - explosion proof design. This is a crucial feature, especially in hazardous industrial environments such as oil refineries, gas plants, and chemical facilities where there is a high risk of explosion due to the presence of flammable gases or vapors. The explosion - proof enclosure ensures that any electrical sparks or heat generated within the converter are contained, preventing ignition of the surrounding hazardous substances. It is designed to meet strict safety standards and must be used in all explosion - proof applications to safeguard personnel and equipment.

Integral Explosion - Proof Junction Box: The “J” in the model number denotes an integral explosion - proof junction box. This junction box provides a safe and convenient way to connect the electrical wires to the converter. It helps in organizing the wiring and further enhances the safety of the overall installation in hazardous areas. In an oil rig, for example, where there are numerous electrical connections and a high risk of explosion, the integral explosion - proof junction box of the E69F - T12 - JRS simplifies the wiring process and ensures that all electrical connections are properly protected.

Adjustable Filter Regulator: The “R” in the model indicates an adjustable filter regulator without a gauge. This filter regulator is designed to clean and regulate the incoming pneumatic supply. It helps in removing any impurities, such as dust, moisture, or oil particles, from the compressed air supply, ensuring that only clean and stable air is used for the conversion process. By adjusting the regulator, the pressure of the incoming air can be optimized, which is essential for achieving accurate and consistent pneumatic output signals. In a paint - spraying facility where the quality of the compressed air is critical for the smooth operation of the spray guns, the adjustable filter regulator of the E69F - T12 - JRS can be adjusted to provide clean and properly pressurized air.

Supply / Output Gauges: The “S” option provides supply / output gauges, which are selected according to the output range requirements. These gauges allow operators to easily monitor the pressure of the incoming pneumatic supply and the resulting output pneumatic signal. In a manufacturing plant, operators can use these gauges to quickly check if the converter is operating within the expected parameters. If there are any deviations, they can take immediate corrective actions, such as adjusting the input signal or checking for any blockages in the pneumatic lines.

Mounting Options: The E69F - T12 - JRS is designed to be easily mounted in various ways. It can be mounted on a flat surface, a valve yoke, or on a nominal DN 50 or 2 - inch vertical pipe. This flexibility in mounting makes it suitable for different industrial setups. In a power plant, it can be mounted on the valve yokes of steam valves, allowing for direct control of the valves' pneumatic actuators. In a food and beverage factory, it can be mounted on a vertical pipe near the production line, where it can receive electrical control signals from the central control system and convert them into pneumatic signals to operate various pneumatic devices.

Simple Connection: Connecting the E69F - T12 - JRS to both electrical and pneumatic interfaces is a straightforward process. For the electrical connection, it can be easily wired to the control system using standard electrical cables, taking into account the appropriate safety precautions, especially in hazardous areas. The pneumatic connections are also simple, with fittings that can be quickly attached to the incoming pneumatic supply line and the output line going to the pneumatic actuator. In a newly installed packaging machine, the E69F - T12 - JRS can be rapidly connected to the electrical control panel and the pneumatic system, reducing the installation time and getting the machine operational quickly.

Intuitive Operation: Once installed, the converter operates in a simple and intuitive manner. It continuously monitors the incoming electrical signal and instantly converts it into the corresponding pneumatic output signal. Operators do not require extensive training to understand its basic operation. In a wastewater treatment facility, the on - site operators can easily understand how the E69F - T12 - JRS works and can quickly identify if there are any issues, such as a sudden change in the output pneumatic pressure.

Calibration: Periodic calibration of the E69F - T12 - JRS is recommended to ensure accurate performance. Calibration involves adjusting the converter to ensure that the input electrical signal is precisely converted into the correct pneumatic output signal. This can be done using standard calibration tools and procedures. In a pharmaceutical manufacturing plant, where accurate control of processes is critical for product quality, regular calibration of the E69F - T12 - JRS is carried out to maintain the integrity of the control system.