The TYH-CYT-107 intrinsically safe explosion-proof pressure transmitter is designed with a high-precision and highly stable force-sensitive chip, featuring a stainless steel isolation diaphragm that ensures durability and accuracy in harsh environments. The device incorporates laser trimming and advanced thick-film technology for temperature compensation, along with linear compensation, signal amplification, and V/I conversion. Additional features include reverse polarity protection, pressure overload current limiting, and a 4 1/2 digit LED display for direct pressure reading. It outputs industry-standard current or voltage signals, making it suitable for a wide range of applications.
This digital explosion-proof pressure transmitter is widely used in the petroleum, chemical, metallurgical, power generation, and environmental protection industries. It accurately measures gauge pressure, absolute pressure, and is ideal for corrosive gases, liquids, and steam. Key performance specifications include a pressure range from -100 kPa to 0 to 300 MPa, with options for different pressure modes. It operates on a power supply of 12VDC to 36VDC and provides output signals such as 4–20mA, 1–5V, 0–5V, and 0–10V. The accuracy classes are ±0.5%FS, ±0.2%FS, and ±0.1%FS, ensuring reliable measurements even under challenging conditions.
The transmitter has a temperature drift of 0.01%FS/°C and zero drift of 0.01%FS/°C, with long-term stability of 0.03%FS/year. It functions within a compensation temperature range of -40°C to +150°C, with medium temperatures varying from -40°C to 85°C, and optional ranges up to 300°C. The ambient operating temperature is -40°C to 85°C, with an overload capability of 150%. Its service life exceeds 1×10^5 pressure cycles at 25°C. The load resistance is calculated using the formula R = (U - 12.5)/0.02 - RD, where U is the power supply voltage and RD is the internal cable resistance. The response time is ≤1 ms (from 10% to 90%).
The measurement medium includes normal temperature and medium-temperature gases, liquids, and both corrosive and non-corrosive substances. The housing is made of 1Cr18Ni9Ti, and it supports connection methods such as M20 × 1.5 or customer-specified lead types. The explosion-proof rating is ExiaIICT6 (optional).
Key features include the use of an explosion-proof original chip, ensuring stable and long-lasting performance; built-in power reverse polarity and overvoltage protection; explosion-proof design with various structural options for safety and reliability; strong anti-interference and anti-vibration capabilities; and excellent long-term stability. This transmitter is ideal for industrial sites requiring intrinsic safety and explosion-proof isolation in fields such as oil and gas, chemical processing, metallurgy, power generation, pharmaceuticals, biochemistry, and fermentation systems.
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