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The HW1151/3851 capacitive pressure transmitter is mainly used to measure parameters such as pressure, negative pressure, and absolute pressure of gases, liquids, and vapors, and then convert them into 4-20mA DC signal output.
Pressure transmitters include two types: GP type (gauge pressure) and AP type (absolute pressure). The combination of GP and AP types with intelligent amplification board can form an intelligent pressure transmitter, which can communicate with each other through a handheld device that complies with the HART protocol for setting and monitoringThe delta chamber of the GP pressure transmitter receives the measured pressure signal on one side and is connected to atmospheric pressure on the other side, making it suitable for measuring gauge pressure or negative pressure
The delta chamber of the AP type absolute pressure transmitter receives the measured absolute pressure signal on one side and is enclosed as a high vacuum reference chamber on the other side. It can measure the absolute pressure of exhaust systems, distillation towers, evaporators, crystallizers, etc
● Selection Table
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HW3851/1151GP
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Pressure transmitter (including negative pressure)
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3 |
0-0.6~6KPa |
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4
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0-4~40KPa
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5
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0-40~250KPa
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6
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0-0.16～1.0MPa
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7
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0-0.4～2.5MPa
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8
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0-1.6～10.0MPa
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9
|
0-2～25MPa
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0
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0-4.0～40MPa
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code
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output
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E
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Non intelligent type (4-20mA output)
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S
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Intelligent (HART protocol)
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J
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Intelligent square opening type
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code name
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structural material
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Flanges and fittings
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Exhaust/Drain Valve
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Isolation membrane
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Fill with liquid
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22
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316 stainless steel
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316 stainless steel
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316 stainless steel
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silicone oil
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23
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316 stainless steel
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316 stainless steel
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Hastelloy C
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24
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316 stainless steel
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316 stainless steel
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Monel
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25
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316 stainless steel
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316 stainless steel
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Tantalum
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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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35
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Hastelloy C
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Hastelloy C
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Tantalum
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44
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Monel
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Monel
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Monel
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code name |
option
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M1
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0-100% linear indicator table
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M2
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LED digital display table
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M3
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LCD monitor |
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B1
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Pipe bending installation plate
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B2
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Plate bending installation plate
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B3
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Pipe installation safety installation board
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C0
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1/2-14NPT taper pipe internal thread joint
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C1
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1/2-14NPT pressure joint rear welded pressure pipe with a diameter of 14
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C2
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T-shaped threaded joint M20 × 1.5
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d
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Explosion proof type d Ⅱ BT4
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i
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Intrinsic safety type ia Ⅱ CT6
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