Category: Pressure Measurement
OBAI-800HT/S Intelligent monocrystalline silicon pressure transmitter
Product Related Description
Product Overview
OBAI-800HT/S intelligent monocrystalline silicon pressure transmitter is a high-precision, highly stable, multi-parameter pressure measurement product that complies with the HART protocol. The digital technology used in this product is the latest application achievement in the field of sensor manufacturing. It combines the internationally advanced single crystal silicon core design and manufacturing technology to perform precise digital temperature compensation and non-linear correction. LCD 4.5-digit display and standard signal output can meet various observations on site and in the control room. Reliable explosion-proof structural design and standardized signal output, high accuracy and wide range coverage, suitable for precise measurement of fluid pressure. HART375 handheld communicator can be used for digital communication, and electromagnetic radiation complies with IEC801 standards.
Main Features
♦Wide range coverage, capable of measuring gauge pressure, absolute pressure, and negative pressure
♦The sensor adopts digital compensation and non-linear correction
♦IP65 protection design, suitable for harsh environments such as outdoors and open air
♦Fiber marking, exquisite and detailed appearance
♦Comply with GB3836 standard requirements and obtain explosion-proof certificate
♦Digital circuit design, can be cleared on-site by pressing a button
♦Adjustable turndown ratio up to 100:1
♦The highest accuracy can reach 0.075%F.S
Performance Index
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Project name |
Technical parameters |
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Measuring range |
0kPa~200Pa···40MPa (see the selection table for details) |
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pressure type |
6kPa gauge pressure, absolute pressure, negative pressure (optional) |
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Comprehensive accuracy |
0.075%F.S, 0.1%F.S, 0.25%F.S(optional) |
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long term stability |
0.1%F.S/year 40kPa |
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working temperature |
-20℃~80℃;-30℃/-40℃~70℃ |
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Power supply |
12V~32VDC (24VDC power supply recommended) 250kPa |
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Output signal |
Default (4~20)mA DC, 1V~5VDC, RS485, etc. (optional) |
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Communication protocol |
RS485 protocol, HART protocol 3MPa |
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Measuring medium and temperature |
Gas, liquid, steam, etc., -20~60℃/specially available -30~80℃ |
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Electrical interface |
M20*1.5(F) standard type, special can be customized 10MPa |
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process connection |
Within 1/2NPT, C1/C2/C3/C4 can be carried |
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Wetted material |
The default sensor diaphragm is 316L, and the other is HC, tantalum, and gold-plated diaphragms (range greater than 6kPa), threaded 304 stainless steel 20MPa |
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Protection level |
IP65 |
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Explosion-proof level |
Ex ia IIC T6 Ga, Ex d IIC T6 Gb, Ex tD A21 IP66 T80℃ 40MPa |
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Warranty period |
twelve months |
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| Range overload limit | |
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6kPa |
0.2MPa |
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40kPa |
1MPa |
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250kPa |
4MPa |
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3MPa |
15MPa |
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10MPa |
20MPa |
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20MPa |
50MPa |
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40MPa |
50MPa |
Outline drawing
Electrical interface and wiring methods
Keywords: OBAI-800HT/S Intelligent monocrystalline silicon pressure transmitter
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