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Smart gas Roots (waist wheel) flow meter Intelligent gas waist wheel (Roots) flowmeter is a new generation flowmeter that integrates flow, temperature, and pressure detection functions, and can automatically compensate for temperature and pressure. Gas is a compressible fluid, and its volume value is closely related to temperature and pressure. In order to unify standards for both parties, it is necessary to convert the actual volume into a standard volume under reference conditions (101.325 kPa 20°C). In order to achieve this purpose, the smart gas waist wheel flowmeter can accurately correct the volume of gas; it is an ideal instrument for gas measurement in urban gas, petroleum, chemical, electric power, metallurgy and other industries. more
TUF Series Portable Ultrasonic Flow Meter The TUF series ultrasonic flow meter utilizes the principle of low voltage and multiple pulsation time difference, adopts the high-precision and ultra-stable differential transmission of double-balanced signals and differential receiving digital detection technology to measure the acoustic wave transmission time in both the downstream and counter-current directions, and calculates the flow rate according to the time difference.It has the characteristics of good stability, small zero drift, high measuring accuracy and high anti-interference of measuring range over wide. more
LDB Intelligent Type Electromagnetic Flow Meter The LDB intelligent type electromagnetic flow meter consists of a sensor and a converter. It is based on Faraday's law of electromagnetic induction, which is used to measure the volume flow of conductive liquid with conductivity greater than 5μs/cm. It is an inductive meter for measuring the volume flow of conductive medium. In addition to measuring the volume flow of general conductive liquid, it can also be used to measure the volume flow of strong corrosive liquids such as strong acid and alkali and uniform liquid-solid two-phase suspension liquid such as slurry, pulp and paper pulp. more
LKQ Thermal Gas Mass Flow Meter LKQ thermal gas mass flow meter is a mass flow measurement and monitoring meter,which can detect air, natural gas, hydrogen, oxygen, chlorine, nitrogen and ammonia, ammonia, coal gas, phosgene, flue gas and various chemical mixtures, without pressure and temperature compensation. It can be widely used in petroleum, chemical, metallurgy, electric power, water treatment, paper, food, medicine, cement, textile and various production, scientific research units for process control and gas flow measurement. Widely used in: flow measurement of steel plant, coking plant gas. more
LLGQ Gas Roots /Waist Wheel Flow Meter The gas roots flowmeter has been used as a volumetric meter for more than 100 years. With the features such as high precision, wide range, small volume, light weight, convenient installation and maintenance, reliable and durable service life, it is widely used in natural gas, coal gas, air and other gas flowmeters.It is an ideal flowmeter device for urban gas, oilfield chemical, scientific research and other departments at home and abroad. more
High Precision Gas Turbine Flow Meter Gas turbine flowmeter is a new generation of high precision, high reliability gas precision measuring meter integrating temperature, pressure, flow sensor and intelligent flow totalizer developed by the advanced technology of flow meter at home and abroad, optimized by theories of gas mechanics, fluid mechanics and electromagnetics, which has excellent low pressure and high pressure metering performance. more
LUGK Multi Variable Type Vortex Flow Meter Mass vortex flowmeter, simple to install. Connection mode: flange and clamping connection. It has superior reliability and stability due to no movable part, and the detecting portion has only a simple configuration of the vortex generator. Low pressure loss, no leakage point, and high safety performance. Robust sensor construction for high temperature (up to 3500 ° C), high pressure fluid. more
LUGC Steam Gas And Liquid Insert Type Vortex Flow Meter The Insert Type vortex flowmeter is simple in structure and can be made into online installation type.Applicable to large diameter gas, steam flow measurement, etc.Easy installation, no pipe design. more
LUGB Flow Instrumentation Vortex Flow Meter The vortex flowmeter is a speed type flow instrument which has a wide range of uses. It is suitable for flow metering, measurement and control of liquids, steam and most gases. more
PT pressure or differential pressure transducer adopts advanced technology, safe and reliable, high precision and pulse transmission;It is widely used in the measurement of pressure parameters of industrial pipelines.
Product Origin:
ChinaShipping Port:
Huangpu portLead Time:
SpotMOQ:
1Features
PT21 universal piezoresistive pressure transmitter
——Swiss original imported ceramic pressure-negative sensor.Small size and light weight, easy to install, can measure the pressure, absolute pressure, negative pressure
■Working voltage: 18~36VDC
■Accuracy grade: ±0.5%, ±0.2%
■Medium temperature: - 30 ~ + 85 ℃
■Output signal: 4-20 mA (two-wire system) 1-5V (three-wire system)
■Hysteresis: better than 0.01% full range
■Stability: better than 0.1% / year
■LCD/LED display (optional), upper and lower limit alarm settings (optional)
PT22 diffused silicon pressure transmitter
——PT series products adopt imported silicon pressure sensor and high performance CPU processor technology, with unique temperature and linear compensation technology.
■Working voltage: 12.5~36VDC
■Accuracy grade: ±0.5%, ±0.2%
■Medium temperature: 0~85℃
■Output signal: 4-20 mA (two-wire system) 1-5V (three-wire system)
■Hysteresis: better than 0.01% full range
■Stability: better than 0.1% / year
■LCD/LED display (optional)
PT23 ceramic capacitive pressure transmitter
——PT series products use the most advanced ceramic technology in Germany, without intermediate fluid, strong impact resistance, over pressure can reach the range of several times to a hundred times;High stability, better than 0.1% a year, can be compared with smart tables.
■Working voltage: 12.5~36VDC
■Accuracy grade: ±0.5%, ±0.2%
■Medium temperature: 0~80℃
■Output signal: 4-20 mA (two-wire system) 1-5V (three-wire system)
■Hysteresis: better than 0.01% full range
■LCD/LED display (optional)
PT1151 Digital Intelligent pressure transmitter
——Based on the world's advanced, mature and reliable capacitive sensor technology, PT series products are elaborately designed with the combination of advanced monolithic computer technology and sensor digital conversion technology.The core component adopts the 16-bit microcontroller, whose powerful function and high speed arithmetic capability guarantee the excellent quality of the transmitter.The entire design framework focuses on reliability, stability, high accuracy and intelligentization to meet the increasing requirements of industrial field application.For this reason, digital signal processing technology is applied in the software, so that it has excellent anti-interference ability and zero stability, as well as zero automatic stability tracking ability (ZSC) and temperature automatic compensation ability (TSC).
■The use of microprocessor increases the flexibility and function of intelligent transmitter.
■Intelligent electronic components are composed of only one board, which has more advantages and higher reliability.
■Range ratio 10:1 or 100:1.
■Range width: 0-25pa ~42MPa.
■Press the button to adjust the zero and range.
■The existing 3051/1151 analog transmitter can be updated to intelligent transmitter.
■In accordance with the HART agreement, the HART communicator can be used to communicate with the table in two-way communication without interrupting the output signal.
■With self-diagnosis and remote diagnosis function.
■Data with EEPROM, is not afraid of power loss.
Pressure range selection table Table 1
Code name |
DR micro differential pressure |
DP differential pressure |
HP high static pressure |
AP absolute pressure |
GP gauge pressure |
Range range (kPa) |
2X |
● |
|
× |
× |
● |
0-0.125~1.5 |
3X |
× |
● |
× |
× |
● |
0-1.3~7.5 |
4X |
× |
● |
● |
● |
● |
0-6.2~37.4 |
5X |
× |
● |
● |
● |
● |
0-31.1~186.8 |
6X |
× |
● |
● |
● |
● |
0-117~690 |
7X |
× |
● |
● |
● |
● |
0-345~2068 |
8X |
× |
● |
× |
● |
● |
0-1170~6890 |
9X |
× |
× |
× |
× |
● |
0-3480~20680 |
0X |
× |
× |
× |
× |
● |
0-6890~41370 |
Selection instructions
Table 2
Model |
Instructions |
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|
□ |
□ |
□ |
□ |
□ |
□ |
□ |
□ |
□ |
|||||||
PT21 |
|
Ceramic piezoresistive |
||||||||||||||
PT22 |
|
Diffused silicon |
||||||||||||||
PT23 |
|
Ceramic capacitor |
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PT1151 |
|
Digital intelligence |
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Measuring form |
A1 |
|
Gauge pressure (PT21,PT22,PT21,PT1151) |
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A2 |
|
Absolute pressure (PT21,PT22,PT21,PT1151) |
||||||||||||||
A3 |
|
High static pressure (PT1151) |
||||||||||||||
A4 |
|
Differential pressure (PT1151) |
||||||||||||||
A5 |
|
Micro differential pressure(PT1151) |
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Process connector material |
B1 |
|
Stainless steel 316 |
|||||||||||||
B2 |
|
Stainless steel 304 |
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B3 |
|
Stainless steel 1Gr18Ni9Ti |
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B4 |
|
Hastelloy C |
||||||||||||||
Procedure connection mode |
C1 |
|
External thread M20 x 1.5(inner hole 3mm) |
|||||||||||||
C2 |
|
External thread M20 x 1.5(inner hole 10mm) |
||||||||||||||
C3 |
|
External thread G1 / 2 (inner hole 3mm) |
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C4 |
|
External thread G1 / 2 (inner hole10mm) |
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C5 |
|
External thread 2-14NPT |
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C6 |
|
Card sleeve (range ≤ 1MPa) |
||||||||||||||
C7 |
|
Special requirements |
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Signal output mode |
E1 |
|
4-20mA two-wire system |
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E2 |
|
1-5V three-wire system |
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Display mode |
F1 |
|
No field output |
|||||||||||||
F2 |
|
0-100% linear indication |
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F3 |
|
LCD digital range display (LCD) |
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F4 |
|
LCD number 0-100% display |
||||||||||||||
F5 |
|
LED number 0-100% display |
||||||||||||||
F6 |
|
Other requirements |
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Accuracy class |
G1 |
|
Level 0.1 (note 2) |
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G2 |
|
Level 0.2 |
||||||||||||||
G3 |
|
Level 0.5 |
||||||||||||||
Temperature drift coefficient |
M1 |
|
0.02%FS/℃ |
|||||||||||||
M2 |
|
0.01%FS/℃ |
||||||||||||||
M3 |
|
0.005%FS/℃ |
||||||||||||||
Explosion-proof grade |
L1 |
|
Standard type (non-explosion-proof) |
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L2 |
|
Intrinsically safe:ExiaII CT4(note1) |
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L3 |
|
Flameproof type:Exd II BT4 |
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Measuring range |
|
Please refer to "pressure range selection table" |
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PT21 |
A1 |
B1 |
C3 |
E1 |
F2 |
G2 |
H1 |
M2 |
L1 |
0-1MPa |
Example selection |