1、 Product Overview Absolute pressure transmitter is used to measure the pressure of liquids, gases, or vapors and convert it into a 4-20mA DC current signal output The absolute pressure transmitter can also communicate with the HART275 handheld controller for setting and monitoring purposes ..
1、 Product Overview
Absolute pressure transmitters are used to measure the pressure of liquids, gases, or vapors and convert it into a 4-20mA DC current signal output The absolute pressure transmitter can also communicate with the HART275 handheld controller for setting and monitoring purposes
2、 Technical parameters
1. Output: Two wire system, 4-20mA DC output, digital communication, programmable linear or square root output mode, HART protocol loaded on 4-20mA DC signal.
2. Power supply voltage: Operating state: 10.5-42V DC
3. Intrinsic safety type: 10.5-30V DC
4. Digital communication: 16.4~42V DC
5. Intrinsic safety type: 16.4~30V DC
6. Load: (When the output signal codes are D and E): Working state: 0-1335 Ω Digital communication: 250-600 Ω
7. Damping time constant: the sum of the damping time constants of the amplifier component and the diaphragm box. The damping time constant of the amplifier components can be adjusted within the range of 0.2 to 64 seconds.
8. Liquid contact temperature: -40~120 ℃
3、 Product Features
1. High accuracy, good stability, two-wire input (special can be four wire input);
2. Solid components, plug-in printed circuit boards; Small, lightweight, sturdy and vibration resistant;
3. Range, zero point continuously adjustable externally; Positive migration can reach 500%, negative migration can reach 600%
4. Damping can be adjusted too much; Good one-way overload protection characteristics;
5. No mechanical movable parts, low maintenance workload; Unified structure across the entire series, with strong interchangeability of components;
6. The membrane material in contact with the medium can be selected; (316L, TAN, HAS-C, MONEL and other corrosion-resistant materials)
7. Explosion proof structure, all-weather use; Intelligent HART fieldbus protocol
4、 Product selection
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code name
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scope
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4
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0-4~40KPa
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5
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0-40~200KPa
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6
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0-1.6~700KPa
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7
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0-0.4~2.0MPa
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8
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0-1.6~7.0MPa
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code name
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output format
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E
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4~20mA.DCAnalog amplifier, linear output
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S
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4~20mA.DCIntelligent amplifier and adoptingHARTProtocol communication
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code name
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flange material
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Exhaust gas/Material of drain valve
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Isolation membrane material
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Fill with liquid
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22
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316stainless steel
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316stainless steel
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316stainless steel
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silicone oil
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23
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316stainless steel
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316stainless steel
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Hastelloy C
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silicone oil
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24
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316stainless steel
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316stainless steel
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Monel
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silicone oil
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25
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316stainless steel
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316stainless steel
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Tantalum
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silicone oil
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33
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Hastelloy C
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Hastelloy C
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Hastelloy C
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silicone oil
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35
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Monel
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Hastelloy C
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Tantalum
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silicone oil
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44
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Monel
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Monel
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Monel
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silicone oil
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code name
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Additional features
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M1
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0~100%Linear indicator table
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M2
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LEDdigital display
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M3
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LCDdigital display
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B1
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Pipe bending bracket
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B2
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Board mounted bending bracket
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B3
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Pipe mounted flat bracket
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C0
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1/2-14NPTCone tube internal thread joint
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C1
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1/2-14NPTWelding pressure pipe at the rear of the pressure jointφ14
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C2
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20×1.5T-shaped threaded joint
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d
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Explosion proof type, explosion-proof mark ExdⅡBT4
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I
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Intrinsic safety type, explosion-proof mark ExiaⅡCT6
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