Description
Flush Pressure Sensor with Display PI2798
Introduction – Flush Pressure Sensor with Display PI2798
The Flush Pressure Sensor with Display PI2798 by ifm electronic is a high-precision, hygienic pressure transmitter designed for demanding applications in the food and beverage industry. Engineered with a flush-mounted ceramic measuring cell and a robust stainless steel (316L) housing, it ensures reliable measurement of relative pressure in liquids, gases, and viscous media, even in environments exposed to aggressive cleaning agents or extreme temperature fluctuations.
This advanced sensor offers two configurable switching outputs and a programmable analog output (4–20 mA), supporting both PNP/NPN operation. Integrated IO-Link communication enables digital data transfer and convenient remote configuration, enhancing process control efficiency in automation systems.
With its IP67, IP68, and IP69K protection ratings, the PI2798 withstands high-pressure washdowns and CIP/SIP cleaning processes, guaranteeing long-term reliability in hygienic production lines. The Aseptoflex Vario G1 flush connection minimizes dead space, preventing contamination and ensuring compliance with strict hygiene standards.
Distributed in the UAE and MENA region by Dubai Sensor, this model provides an ideal solution for industries requiring high measurement accuracy, ease of integration, and durable hygienic design in their process instrumentation setups.
Key Features & Benefits
- Hygienic flush-mount design with no dead space – ideal for sanitary applications
- Robust stainless steel housing (316L) for corrosion resistance and longevity
- Wide measuring range: −0.0124…0.25 bar (−12.4…250 mbar / −1.24…25 kPa)
- High accuracy: ≤ ±0.2 % of span, with excellent repeatability (≤ ±0.1 %)
- Two programmable digital outputs (PNP/NPN, NO/NC) and one analog output (4–20 mA)
- IO-Link interface for remote setup, data monitoring, and diagnostics
- Resistant to high-pressure cleaning and aggressive cleaning agents
- High temperature capability: −25…125 °C (145 °C for 1 hour)
- Protection class: IP67 / IP68 / IP69K – suitable for washdown areas
- Long lifetime: Over 100 million pressure cycles and MTTF of 160 years
- Compact and easy to install via Aseptoflex Vario G1 threaded connection
Technical Specifications – Flush Pressure Sensor with Display PI2798
|
Parameter |
Specification |
|
Measuring Range |
−0.0124…0.25 bar (−12.4…250 mbar / −1.24…25 kPa / −5…100.4 inH₂O) |
|
Pressure Type |
Relative pressure |
|
Burst Pressure |
30,000 mbar (3,000 kPa) |
|
Pressure Rating |
6,000 mbar (600 kPa) |
|
Vacuum Resistance |
−1,000 mbar (−0.1 MPa) |
|
Medium Temperature |
−25…125 °C (145 °C max. 1h) |
|
Ambient Temperature |
−25…80 °C |
|
Housing Material |
Stainless steel (316L/1.4404) |
|
Wetted Parts |
Ceramic (Al₂O₃ 99.9 %), stainless steel (316L/1.4435), PTFE |
|
Process Connection |
G 1 external thread – Aseptoflex Vario (flush design) |
|
Outputs |
2 × digital (PNP/NPN configurable), 1 × analog (4–20 mA, scalable) |
|
Communication Interface |
IO-Link COM2 (38.4 kBaud), Revision 1.0 |
|
Power Supply (3-wire) |
18…32 V DC |
|
Accuracy (switch point) |
≤ ±0.2 % of span |
|
Repeatability |
≤ ±0.1 % of span |
|
Linearity Deviation |
≤ ±0.15 % |
|
Protection Class |
IP67 / IP68 / IP69K |
|
Display |
4-digit alphanumeric with green/yellow LEDs |
|
Connection Type |
M12, gold-plated contacts |
|
Shock/Vibration Resistance |
50 g (11 ms) / 20 g (10–2000 Hz) |
|
Lifetime (MTTF) |
160 years |
|
Weight |
354 g |
Standards & Certifications
- EMC Compliance: EN 61000-4-2 / -3 / -4 / -5 / -6
- Accuracy Standard: DIN EN IEC 62828-1
- UL Certification: File No. E174189 (UL J018)
- Protection Ratings: IP67, IP68, IP69K (EN 60529)
- Factory Calibration Certificate: Available via ifm online portal
Applications & Industries
- Food and beverage production lines
- Dairy processing and filling systems
- Brewing, bottling, and beverage packaging
- Hygienic pressure control in mixing and dosing systems
- Pharmaceutical and biotechnology processes
- CIP/SIP cleaning systems and washdown environments
- Suitable for UAE and MENA process industries requiring hygienic sensors
Installation, Commissioning & Maintenance
- Install using the Aseptoflex Vario G1 process connection for hygienic sealing.
- Configure parameters directly via front-panel buttons or IO-Link interface.
- Ensure electrical connection through M12 gold-plated connector for reliable signal transfer.
- Suitable for high-pressure and chemical cleaning; routine visual inspection of sealing surfaces recommended.
- No recalibration required for long-term stability under normal operating conditions.
Why Choose Flush Pressure Sensor with Display PI2798
The PI2798 combines precision engineering with hygienic design, providing exceptional measurement reliability for sanitary processes. Its robust build, advanced digital interface, and resistance to cleaning chemicals make it a superior choice for automated food and beverage systems.
By integrating the PI2798, industries benefit from extended sensor life, reduced maintenance, and seamless system communication via IO-Link, ensuring maximum productivity and process transparency in modern hygienic applications.
Ordering Guide
- Model: PI2798 – Flush Pressure Sensor with Display
- Process Connection: G 1 (Aseptoflex Vario, hygienic flush)
- Electrical Connection: M12, gold-plated contacts
- Output Configuration: 2 × PNP/NPN digital, 1 × analog 4–20 mA
- Accessories: Mounting adapters, IO-Link master, programming cable (optional)
Note: Factory calibration certificate downloadable from the ifm website.
For supply and technical support in the UAE and MENA region, contact Dubai Sensor, the authorized distributor of ifm products.
FAQ – Flush Pressure Sensor with Display PI2798
Q1: What type of pressure does the PI2798 measure?
A1: The PI2798 measures relative pressure within a range of −0.0124 to 0.25 bar, suitable for monitoring low-pressure applications in hygienic processes.
Q2: Is the PI2798 suitable for food and beverage applications?
A2: Yes. The sensor features a flush-mounted ceramic measuring cell and stainless steel (316L) housing, making it ideal for hygienic installations in food, beverage, and dairy processing.
Q3: Can the sensor withstand high-temperature cleaning (CIP/SIP)?
A3: Absolutely. It operates up to 125 °C continuously and tolerates 145 °C for 1 hour, ensuring reliability during CIP/SIP cleaning cycles.
Q4: What communication interface does the PI2798 support?
A4: The PI2798 supports IO-Link (COM2, 38.4 kBaud) for parameter setting, process data transfer, and diagnostics.
Q5: What is the protection rating of this pressure sensor?
A5: It is rated IP67, IP68, and IP69K, ensuring complete resistance to water ingress, dust, and high-pressure washdowns.
Q6: How can the PI2798 be configured?
A6: The sensor can be configured manually via its buttons or digitally via IO-Link, allowing flexible setup for both analog and switching outputs.
Q7: What materials are in contact with the process medium?
A7: Wetted parts are made of ceramic (Al₂O₃ 99.9 %), stainless steel (316L), and PTFE, ensuring compatibility with food-grade and chemical media.
Q8: Does the PI2798 come with a factory calibration certificate?
A8: Yes. A factory calibration certificate is available for download directly from the ifm website.
Q9: How durable is the PI2798 sensor?
A9: It offers a lifetime exceeding 100 million pressure cycles and a Mean Time To Failure (MTTF) of approximately 160 years, ensuring long-term operational stability.
Q10: Where can I purchase or get support for the PI2798 in the UAE?
A10: The Flush Pressure Sensor with Display PI2798 is available through Dubai Sensor, the official ifm distributor for the UAE and MENA region.
Documents
Additional Information
Number of inputs and outputs: |
Number of digital outputs: 2; Number of analog outputs: 1 |
Measuring range: |
-0.0124...0.25 bar, -12.4...250 mbar, -5...100.4 inH2O, -1.24...25 kPa |
Process connection: |
threaded connection G 1 external thread Aseptoflex Vario |
System: |
gold-plated contacts |
Application: |
flush mountable for the food and beverage industry |
Media: |
viscous media and liquids with suspended particles; liquids and gases |
Medium temperature[°C]: |
-25...125; (145 max. 1h) |
Min. burst pressure: |
30000 mbar.. 12044 inH2O.. 3000 kPa |
Pressure rating: |
6000 mbar.. 2400 inH2O.. 600 kPa |
Vacuum resistance: |
-1000 mbar.. -0.1 MPa |
Type of pressure: |
relative pressure |
No dead space: |
yes |
MAWP (for applications according to CRN)[bar]: |
10 |
Min. insulation resistance[MΩ]: |
100; (500 V DC) |
Protection class: |
III |
Reverse polarity protection: |
yes |
Integrated watchdog: |
yes |
Current consumption[mA]: |
3.6...21 |
Power-on delay time[s]: |
1 |
Current consumption[mA]: |
< 45 |
Power-on delay time[s]: |
0.5 |
Total number of outputs: |
2 |
Output signal: |
switching signal; analog signal; IO-Link; (configurable) |
Electrical design: |
PNP/NPN |
Number of digital outputs: |
2 |
Output function: |
normally open / closed; (configurable) |
Number of analog outputs: |
1 |
Analog current output[mA]: |
4...20, invertible; (scalable) |
Short-circuit protection: |
yes |
Type of short-circuit protection: |
yes (non-latching) |
Overload protection: |
yes |
2-wire .Max. load[Ω]: |
300 |
3-wire .Max. voltage drop switching output DC[V]: |
2 |
Permanent current rating of switching output DC[mA]: |
250 |
Switching frequency DC[Hz]: |
125 |
Max. load[Ω]: |
(Ub - 10 V) / 20 mA |
Measuring range: |
-0.0124...0.25 bar , -12.4...250 mbar , -5...100.4 inH2O , -1.24...25 kPa |
Set point SP: |
-12...250 mbar , -4.8...100.4 inH2O , -1.2...25 kPa |
Reset point rP: |
-12.4...249.6 mbar , -5...100.2 inH2O , -1.24...24.96 kPa |
Analog start point: |
-12.4...187.4 mbar , -5...75.2 inH2O , -1.24...18.74 kPa |
Analog end point: |
50...250 mbar , 20.1...100.4 inH2O , 5...25 kPa |
In steps of: |
0.2 mbar , 0.1 inH2O , 0.02 kPa |
Factory setting: |
SP1 = 62.4 mbar, rP1 = 57.4 mbar - SP2 = 187.4 mbar, rP2 = 182.4 mbar - ASP = 0.0 mbar, AEP = 250.0 mbar - dAP = 0.06 s, dAA = 0.03 s |
Switch point accuracy[% of the span]: |
< ± 0,2; (Turn down 1:1) |
Repeatability[% of the span]: |
< ± 0,1; (with temperature fluctuations < 10 K; Turn down 1:1) |
Characteristics deviation[% of the span]: |
< ± 0,2; (Turn down 1:1 , linearity, incl. hysteresis and repeatability , limit value setting to DIN EN IEC 62828-1) |
Linearity deviation[% of the span]: |
< ± 0,15; (Turn down 1:1) |
Hysteresis deviation[% of the span]: |
< ± 0,15; (Turn down 1:1) |
Long-term stability[% of the span]: |
< ± 0,1; (Turn down 1:1; per year) |
Temperature coefficient zero point[% of the span / 10 K]: |
< ± 0,05; (0...70 °C) |
Temperature coefficient span[% of the span / 10 K]: |
< ± 0,15; (0...70 °C) |
Damping process value dAP[s]: |
0...30 |
Damping for the analog output dAA[s]: |
0.01...99.99 |
2-wire .Step response time analog output[ms]: |
45 |
3-wire .Min. response time of switching output (dAP)[ms]: |
3 |
3-wire .Step response time analog output[ms]: |
7 |
Communication interface: |
IO-Link |
Transmission type: |
COM2 (38,4 kBaud) |
IO-Link revision: |
1.0 |
SIO mode: |
yes |
Required master port class: |
A |
Process data analog: |
1 |
Process data binary: |
2 |
Min. process cycle time[ms]: |
2.3 |
Supported DeviceIDs: |
Type of operation: default, DeviceID: 257 |
Ambient temperature[°C]: |
-25...80 |
Storage temperature[°C]: |
-40...100 |
Protection: |
IP 67; IP 68; IP 69K |
EMC: |
EN 61000-4-2 ESD(4 kV CD / 8 kV AD), EN 61000-4-3 HF radiated(10 V/m), EN 61000-4-4 Burst(2 kV), EN 61000-4-5 Surge(0,5/1 kV), EN 61000-4-6 HF conducted(10 V) |
Shock resistance: |
DIN IEC 68-2-27.. 50 g (11 ms) |
Vibration resistance: |
DIN IEC 68-2-6.. 20 g (10...2000 Hz) |
MTTF[years]: |
160 |
Note on approval: |
Factory certificate available as download at www.factory-certificate.ifm |
UL approval: |
UL approval number: J018, File number UL: E174189 |
Weight[g]: |
354 |
Housing: |
tubular |
Dimensions[mm]: |
Ø 50 / L = 105.8 |
Material: |
stainless steel (1.4404 / 316L); FKM; PTFE; PBT; PEI; PFA |
Materials (wetted parts): |
ceramics (99.9 % Al2O3); stainless steel (1.4435 / 316L) surface characteristics: Ra < 0,4 µm / Rz = 4 µm; PTFE |
Min. pressure cycles: |
100 million |
Display: |
Display unit: LED, green, Switching status: LED, yellow, Function display: alphanumeric display, 4-digit, Measured values: alphanumeric display, 4-digit |
Display unit: |
mbar; kPa; inH2O; mmWS; % of the span |
Pack quantity: |
1 pcs. |
Connection: |
Connector: 1 x M12; coding: A; Contacts: gold-plated |
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