The 338 series pressure transmitter adopts imported ceramic sensors with international advanced technology, and is equipped with high-precision electronic components, assembled through strict process requirements. It is compared to the conventional pressure transmitters currently in use. There are two significant technological differences: one is the use of emerging high-precision ceramic materials for measuring components; The second is that there is no intermediate liquid inside the measuring element, and it is completely solid.
1、 Main features of 338 series pressure transmitter
The 338 series pressure transmitter has strong overload and impact resistance, with overpressure up to several times the range. Even hitting the measuring element directly with a hard object does not cause damage, and has no impact on measurement accuracy; The 338 series pressure transmitter has high stability, exceeding 0.1% of full range annually, which has reached the level of intelligent pressure instruments; The temperature drift is small, and due to the elimination of the intermediate liquid in the pressure measuring element, the sensor not only achieves high measurement accuracy, but is also minimally affected by temperature gradients; Wide applicability, easy installation and maintenance, pressure transmitter can be installed at any position.
2、 Technical specifications of 338 series pressure transmitter
1. Measurement range: -100KPa to 60MPa
2. Accuracy level: 0.1 level, 0.2 level, 0.5 level
3. Environmental temperature: -40~80 ℃
4. Medium temperature: -40~125 ℃ (temperature compensation -20~80 ℃)
5. Long term stability: better than 0.1% F.S/year
6. Working voltage: 12.5-36VDC
7. Output signal: 4-20mA (two-wire system) 0/1-5VDC (three wire system)
8. Range Migration: Standard range migration of 10:1 can be performed
9. Vibration effect: On any axis, 200Hz/g is 0.01% F.S
10. Protection level of transmitter: IP65
11. Explosion proof: ia Ⅱ CT4, intrinsic safety type
12. Associated device: LB802
13. Material: The shell is made of molded cast aluminum
14. The membrane is made of 96% alumina ceramic
15. The process connection is made of 316L stainless steel
16. Sealing rings: nitrile rubber, silicone rubber, fluororubber
3、 338 Series Pressure Transmitter Selection Table
| TX338 |
pressure transmitter
|
||||||
| code |
sensor type
|
||||||
| A |
Dry thick film piezoresistive ceramic sensor
|
||||||
| B |
Dry thick film capacitive ceramic sensor
|
||||||
| code |
Installation method
|
||||||
| K |
M20 × 1.5 inner hole with a diameter of Ø 11.4mm
|
||||||
| A |
NPT1/2 inner hole with a diameter of 11.4mm
|
||||||
| M |
G 1/2 DIN16288
|
||||||
| R |
G 1/2 inner hole with a diameter of 11.4mm
|
||||||
| T |
User specific requirements
|
||||||
| code |
accuracy class
|
||||||
| E |
Level 0.5
|
||||||
| K |
Level 0.2
|
||||||
| M |
0.1 level
|
||||||
| code |
Display mode
|
||||||
| N |
No on-site display
|
||||||
| A |
0-100% linear pointer header display
|
||||||
| code |
pressure type
|
||||||
| G |
gauge pressure
|
||||||
| A |
Absolute pressure
|
||||||
| code |
option
|
||||||
| B |
Intrinsic safety explosion-proof type, Wuwei ordinary type
|
||||||
|
0-60MPa
|
|||||||
