1、 Product application

HCS4933 micro differential pressure transmitter is used to measure liquid level and convert it into 4-20mA DC current (with added HART digital communication) or PROFIBUS-PA communication signal output; At the same time, remote settings, monitoring, and other functions can be achieved through communication devices.

2、 Product parameters

Measurement range: 100Pa~2Kpa

Range ratio: 20:1

Power supply: 10.5V~45V DC (intrinsic safety barrier power supply ≤ 30V DC)

Output: 4mA~20mA DC and HART communication; PROFIBUS-PA communication

Environmental temperature: -40 ℃~85 ℃

Medium temperature: -40 ℃~100 ℃ (filled with silicone oil)

Accuracy: ≤ (0.0029r+0.071)%

Temperature drift: ≤ (0.15r+0.2)% (-10 ℃~60 ℃)

≤（0.2r+0.3）%/10℃(-40℃～-10℃；60～85℃)

Static pressure influence: ≤ 0.15 r%/3.2Mpa (zero point); ≤ 0.2%/3.2Mpa (range)

Long term drift: ≤ 0.3 r%/5 years

Shell protection level: IP67

Explosion proof rating: Ex iaIICT6 or Ex dIICT6

Anti corrosion: Select the corresponding material for the measuring part according to different media

3、 Main features

1. Measurement medium: gas, vapor, liquid

2. Accuracy: 0.075% (including dead zone, hysteresis, repeatability, etc.)

3. Wide range ratio: 100:1

4. Wide measurement range (before relocation):

5. Differential pressure range 0-100Pa~3MPa

6. Pressure range 0-1kPa~40MPa

7. High stability and reliability

8. Long term drift of 0.25%/5 years, measured<0.1%/5 years

9. Safety level SIL2, MTBF, 1997

10.5 years maintenance free, saving maintenance costs

11. Temperature and static pressure have minimal impact and can be ignored

12. Excellent unidirectional overload characteristics

13. High static pressure: 16MPa, 42MPa

14. Wide temperature range: ambient temperature -40 ° C~85 ° C, measured medium temperature -90 ° C~350 ° C

15. The output conforms to multiple fieldbuses: 4~20mA/HART, PROFIBUS-PA, FF

16. The universal debugging software SIMATIC PDM can achieve remote online management of all transmitters

17. Lightning protection, electromagnetic interference resistance, vibration resistance, moisture resistance, overvoltage resistance, and resistance to environmental temperature changes

18. Rich debugging methods: on-site buttons, handheld devices SIMATIC PDM、 control system

19. Self diagnosis, fault alarm, circuit testing, self configuration

20. Universal installation bracket, stainless steel nameplate

21. Fast dynamic response

22. Complete explosion-proof certification Exia ll CT6 Exd ll CT6

23. FDA, EHEDG, GMP certified sanitary transmitters

24. Rich selection of matching valve groups and conversion joints

25. Rich filling fluids: silicone oil, high-temperature silicone oil, inert fluid, vegetable oil, glycerin/water

26. Unique and powerful on-site buttons

27. High overlapping adjacent ranges ensure continuous high accuracy

28. Intelligent display technology is easier to operate and understand

4、 Technical data