The TK3051F Hygiene Pressure Transmitter is designed for food, pharmaceutical and other hygienic processes. Its wetted structure supports CIP/SIP cleaning, while gauge and absolute pressure models are available for liquid, gas, steam and high-viscosity media. The isolation diaphragm, process connection and housing are configured for hygienic installation requirements.
- Food processing, beverage and pharmaceutical equipment.
- CIP/SIP cleaning processes.
- Liquid, gas, steam and high-viscosity media measurement.
- Equipment requiring hygienic process connections and cleanable wetted surfaces.
- Installations requiring HART communication, local indication or hazardous-area certification.
- Hygienic construction: The wetted parts are designed for cleaning and maintenance in hygienic processes.
- Defined measurement types: 3051FA absolute pressure and 3051FG gauge pressure models are available.
- Wide range adjustment: 20:1 range ratio with external zero and span adjustment.
- Stable output: 4-20 mA output with HART digital communication.
- Temperature capability: Process temperature up to 140 °C for high-temperature steam cleaning applications.
- Field indication options: Digital liquid crystal meter, alarm output switch and safety protection switch are available.
- Protection and certification: NEMA 4X, IP65 or IP67 aluminum housing configurations, with intrinsic safety or explosion suppression options.

| Feature |
Details |
| Measurement type |
3051FA absolute pressure; 3051FG gauge pressure |
| Output |
4-20 mA DC/HART digital communication |
| Range ratio |
20:1 |
| Response time |
Time constant below 200 ms |
| Process interface |
1-1/2 or 2 inch hygienic interface |
| Electrical interface |
1/2-14 NPT, M20 x 1.5 or PG13.5 |
| Wetted material |
316L stainless steel isolation diaphragm and 316L stainless steel process joint |
| Range code |
Minimum range |
UPL / maximum range |
| 1 |
10.3 kPa (103 mbar) |
200 kPa (2.06 bar) |
| 2 |
51.7 kPa (5.17 mbar) |
1034 kPa (10.34 bar) |
| 3 |
276 kPa (2.76 bar) |
2068 kPa (20.68 bar) |
| Item |
Specification |
| Reference accuracy |
±0.2% of calibrated range |
| Stability |
±0.10% URL, 12 months |
| Process temperature |
-20 to 140 °C |
| Ambient temperature |
-20 to 85 °C |
| Storage temperature |
-30 to 85 °C |
| Overpressure |
826.8 kPa for range 1; 2 URL for other ranges |
| Relative humidity |
0 to 100% |
| Volume variation |
Less than 0.00042 cm³ |
| Start time |
2 seconds without preheating |
| Vibration influence |
Less than ±0.10% URL |
| Radio-frequency interference |
Less than ±0.25% URL under 20 to 100 MHz conditions |
| Item |
Available configuration |
| Housing |
Low-copper aluminum housing with polyurethane coating |
| Protection |
NEMA 4X, IP65 or IP67 |
| Indication |
Digital liquid crystal meter |
| Alarm |
Alarm output switch and safety protection switch |
| Certification |
Ex ia IIC T4/T6 intrinsic safety; Ex d IIC T4/T6 explosion suppression |
| Weight |
Approximately 1.24 kg |
- 1-1/2 or 2 inch hygienic process connection.
- Installation in CIP/SIP cleaning systems.
- Field junction-box installation.
- Optional liquid crystal meter and alarm/safety protection switches.
- Gauge or absolute pressure requirement.
- Media, viscosity, temperature and pressure range.
- Range code or minimum and maximum range.
- Hygienic process interface size and installation standard.
- CIP/SIP cleaning method and maximum cleaning temperature.
- 4-20 mA, HART, local display and alarm requirements.
- Housing protection level and intrinsic safety/explosion suppression certification.
- 1-1/2 or 2 inch hygienic process connection parts.
- Digital liquid crystal meter.
- Alarm output switch and safety protection switch.
- HART communication equipment and field wiring accessories.