Pressure transmitters are devices used to convert pressure into pneumatic or electrical signals for control and remote transmission. They are capable of transforming the physical pressure parameters of gases, liquids, and other substances sensed by the pressure sensing element into standardized electrical signals, such as 4~20mADC. These signals are then supplied to secondary instruments, such as indicators, alarm devices, recorders, and controllers, facilitating precise measurement, indication, and process adjustment.
Part. 1 Overview
The YSB-E electric pressure transmitter is designed for industrial process applications and is capable of measuring pressure in liquids, steam, and gases. Utilizing advanced fully isolated intelligent conversion and digital compensation technology, it boasts exceptional anti-interference capabilities and extremely high measurement accuracy. Its strong vibration resistance makes it suitable for various working conditions, and the extensive range of available liquid-contact materials, such as SUS316L, Hastelloy, and tantalum, ensures compatibility with nearly all media.
Part. 2 Technical Parameters
●Measuring range: 0~130kPa, 0~3MPa, 0~10MPa,
0~35MPa (range optional)
●Accuracy: ±0.025%, ±0.05%, ±0.075%
●Working voltage: 24VDC±10%
●Output signal: 4~20mA DC (HART protocol)
RS485 (MODBUS protocol)
●Measurement type: gauge pressure
●Electrical interface: M20 x 1.5 or 1/2NPT internal thread two-way wiring port
●Span transfer ratio: 100: 1
●Fault diagnosis: LCD display code
●Display mode: liquid crystal LCD
●Shell material: Polyurethane coated low copper cast aluminum alloy or stainless steel
●Response time: ≤100ms
●Stability: ±0.2%URL for 15 years
Wetted material: SUS316L Hastelloy, tantalum, etc. (optional)
●Wet temperature: -20°C~85°C ; -40°C~ 120°C
●Environmental humidity: 5~100% RH@40°C
●Ambient temperature: -40~85°C; -30~80°C (with LCD meter)
●Explosion-proof grade: Exd IIC T4~T6 Gd, Exia IIC T6 Ga
●Protection grade: IP65, IP66, IP67
●Safety Certification: Functional Safety Level Certification (SIL)
EU "CE" certification
Direct connection: M20 x 1.5 or 1/2NPT external thread
Pipe connection installation form: with 1/2NPT internal thread process joint
●Installation bracket: SUS304 flat bracket or vertical bracket (optional)
●Nameplate: SUS304 stainless steel
●Weight: 1.5kg (without mounting bracket and process fitting)
●Typical applications: petroleum, chemical industry, electric power, metallurgy, etc.
Part. 3 Installation and Precautions
● Generally, the instrument should be installed upright and perpendicular to the horizontal direction, with protective measures taken to prevent intentional damage.
● When installing the pressure interface with M20x1.5 external thread or 1/2NPT external thread, sealing gaskets made of brass or PTFE should be added for proper sealing.
● The pressure to be measured should fall within the measuring range, and it is advisable to select a measuring range that is at least 1.5 times greater than the measured pressure.
● The instrument can be directly installed on the flange interface of the measuring pipeline. For ease of installation and maintenance, stop valves and drain valves (see the figure below) should be added between the flange joint and the pipeline.
● When installing the instrument, the drain valve should be opened to ensure the pressure loop is unobstructed and connected to the pipeline.
Part. 4 Dimensions and Wiring Diagram