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)
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
|
|
|
□
|
□
|
□
|
□
|
□
|
□
|
□
|
□
|
□
|
|
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
|
|
0.02％FS/℃
|
|
M2
|
|
0.01％FS/℃
|
|
M3
|
|
0.005％FS/℃
|
|
Explosion-proof grade
|
L1
|
|
Standard type (non-explosion-proof)
|
|
L2
|
|
Intrinsically safe：ExiaII CT4(note1)
|
|
L3
|
|
Flameproof type：Exd 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
|
