PT Pressure Or Differential Pressure Transducer

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.



Features

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)

universal piezoresistive pressure transmitter


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)

diffused silicon pressure transmitter


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)

ceramic capacitive pressure transmitter


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

 

PT21

Ceramic piezoresistive

PT22

Diffused silicon

PT23

Ceramic capacitor

PT1151

Digital intelligence

Measuring form

A1

Gauge pressure (PT21,PT22,PT21,PT1151)

A2

Absolute pressure (PT21,PT22,PT21,PT1151)

A3

High static pressure (PT1151)

A4

Differential pressure (PT1151)

A5

Micro differential pressure(PT1151)

Process connector material

B1

Stainless steel 316

B2

Stainless steel 304

B3

Stainless steel 1Gr18Ni9Ti

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)

C4

External thread G1 / 2 (inner hole10mm)

C5

External thread 2-14NPT

C6

Card sleeve (range 1MPa)

C7

Special requirements

Signal output mode

E1

4-20mA two-wire system

E2

1-5V three-wire system

Display mode

F1

No field output

F2

0-100% linear indication

F3

LCD digital range display (LCD)

F4

LCD number 0-100% display

F5

LED number 0-100% display

F6

Other requirements

Accuracy class

G1

Level 0.1 (note 2)

G2

Level 0.2

G3

Level 0.5

Temperature drift coefficient

M1

0.02FS/

M2

0.01FS/

M3

0.005FS/

Explosion-proof grade

L1

Standard type (non-explosion-proof)

L2

Intrinsically safeExiaII CT4(note1)

L3

Flameproof typeExd II BT4

Measuring range

Please refer to "pressure range selection table"

PT21

A1

B1

C3

E1

F2

G2

H1

M2

L1

0-1MPa

Example selection


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