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The Honeywell STD870-41AN4CS is a high-performance intelligent pressure/differential pressure transmitter and a member of the Honeywell STD870 series. This series of products is designed for the field of industrial process control and is renowned for its high precision, reliability and flexibility. The following is a detailed description of the specific technical parameters and product description of this model.
I. Product Description
Honeywell STD870-41AN4CS is an intelligent transmitter based on mature capacitive sensing technology. Its core design aims to provide stable and precise solutions for pressure, differential pressure, liquid level and flow measurement in process industries such as petrochemicals, power, pharmaceuticals, water treatment, etc. This transmitter features a robust cast aluminum housing, providing excellent resistance to electromagnetic interference (EMI) and radio frequency interference (RFI), and is intrinsically safe and flameproof certified, making it suitable for use in hazardous areas. Its "intelligent" feature is reflected in the built-in microprocessor, which supports remote configuration, diagnosis and digital communication (via HART protocol), greatly facilitating installation, debugging and maintenance work. Overall, it is a key instrument designed to enhance process efficiency, safety and operability.
Ii. Main Technical Parameters
** * Measurement type: ** Differential pressure
** * Output signal: ** 4-20 mA DC, superimposed with HART digital communication protocol.
** * Accuracy ** : High precision, with typical values up to ±0.075% of span (including linearity, hysteresis and repeatability).
** * Measurement range: ** The range ratio is wide, up to 100:1. Users can freely adjust the range through the software without the need for hardware changes. The specific range of measurement should be referred to the product selection manual. The code "41A" usually corresponds to a specific default range.
** * Process connection ** : The standard configuration is a 1/2-inch NPT internal thread process interface (indicated by code "N4"), typically made of 316 stainless steel, suitable for most industrial media.
** * Electrical connection: ** 1/2-inch NPT conduit interface.
** * Display and Operation: ** Optional local LCD display head (code "C" indicates display), supporting local display of pressure value, percentage, current value and basic configuration operations.
** * Sensor material ** : The diaphragm in contact with the medium is usually 316L stainless steel to ensure good corrosion resistance.
** * Power supply: The standard working voltage is 10.5 to 42
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