PTC 350F Hygienic Process Pressure Transmitter

PTC 350F Hygienic Process Pressure Transmitter

The SENSVISION PTC 350F is specifically developed for precise measurement of low system pressures from 40 mbar up to 20 bar in hygienic and chemically demanding environments. Based on an own developed capacitive ceramic sensor element, the transmitter delivers excellent resistance against aggressive media and provides high overpressure capability relative to its nominal range. This makes it particularly well suited for applications involving viscous, pasty, or reactive process media where stability and durability are critical.

Designed with flexibility in mind, the SENSVISION PTC 350F offers a wide range of hygienic process connections including flush DIN connections, clamp fittings, dairy pipe connections, Varivent®, and flanged versions. Standard accuracy is ≤ ± 0.35% span with an optional ≤ ± 0.25% span version for tighter control requirements. Intrinsically safe Ex ia versions for gases and dusts are available, along with optional ceramic diaphragm material in 99.9% Al₂O₃ for enhanced performance in challenging applications.

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SKU PTC 350F Category

Features Of The SENSVISION PTC 350F Hygienic Low Pressure Transmitter

  • Capacitive Ceramic Sensor Technology For High Media Resistance
    The ceramic Al₂O₃ diaphragm provides strong resistance against aggressive chemicals and process fluids while maintaining stable and repeatable measurement performance.

  • Low Pressure Measurement From 40 Mbar Up To 20 Bar
    The SENSVISION PTC 350F covers a wide span of small system pressures and filling height measurement tasks, supporting both gauge and selected absolute pressure configurations.

  • Hygienic Process Connections For Food And Chemical Industry Compliance
    Multiple hygienic mechanical connection options are available including G 1 1/2″ DIN flush, clamp according to DIN 32676, dairy pipe according to DIN 11851, Varivent®, and flange according to DIN 2501.

  • Enhanced Accuracy Options For Precise Process Control
    Standard accuracy is ≤ ± 0.35% span with an optional ≤ ± 0.25% span version to meet higher performance requirements in controlled production processes.

  • Intrinsically Safe Ex ia Versions For Hazardous Areas
    The 4.20 mA 2-wire version is available with Ex ia approval for gases and dusts with temperature class T4 and optional T6, supporting installation in explosive atmospheres.

  • Flexible Electrical Outputs For Integration Into Automation Systems
    Standard 2-wire 4.20 mA output supports robust industrial transmission, while optional 3-wire 0.10 V output enables compatibility with voltage based input systems.

Suitable Applications Of The SENSVISION PTC 350F Hygienic Process Pressure Transmitter

The SENSVISION PTC 350F is ideally suited for hygienic and chemically demanding process environments where low pressure measurement, cleanability, and resistance to aggressive or viscous media are essential. Its wide selection of sanitary process connections and ceramic sensing technology make it a reliable solution for regulated and contamination sensitive industries.

  • Food industry pressure measurement in processing lines and vessels
  • Chemical and petrochemical industry low pressure monitoring
  • Paint and varnish production processes
  • Measurement of viscous and pasty media in hygienic systems
  • Filling height monitoring in tanks with sanitary fittings
  • Hazardous area installations using intrinsically safe Ex ia versions
  • Applications requiring enhanced chemical resistance and overpressure capability

Technical Specifications Of The SENSVISION PTC 350F Process Industry Pressure Transmitter

SpecificationDetail
Product TypeHygienic process pressure transmitter with ceramic sensor
Nominal Pressure Range0.04 bar to 20 bar
Pressure TypeGauge standard, selected absolute ranges on request
AccuracyStandard ≤ ± 0.35% span, option ≤ ± 0.25% span
Overpressure CapabilityUp to 45 bar depending on nominal range
Permissible VacuumDown to -1 bar depending on range
Output Signals2-wire 4.20 mA standard, 3-wire 0.10 V option
Supply Voltage 2-Wire9 to 32 VDC
Supply Voltage 2-Wire IS14 to 28 VDC
Supply Voltage 3-Wire12.5 to 32 VDC
Long Term Stability≤ ± 0.1% span per year
Turn On Time700 msec
Mean Measuring Rate5 per sec
Response TimeMean ≤ 200 msec, max 380 msec
Thermal Error≤ ± 0.1% span per 10 K in compensated range -20 to 80 °C
Medium Temperature-40 to 125 °C
Electronics Temperature-40 to 85 °C
Storage Temperature-40 to 100 °C
Diaphragm MaterialCeramic Al₂O₃ 96% standard, 99.9% option
Pressure Port MaterialStainless steel 1.4404
Housing MaterialStainless steel 1.4404, optional field housing stainless steel 1.4435
Seal MaterialsFKM, EPDM, others on request
Short Circuit ProtectionPermanent
Reverse Polarity ProtectionNo damage, but also no function
Vibration Resistance10 g RMS according to DIN EN 60068-2-6
Shock Resistance100 g / 1 msec according to DIN EN 60068-2-27
Operational LifeGreater than 100 x 10⁶ loading cycles
Intrinsic Safety ApprovalIBExU05ATEX1069 X, Ex ia for gases and dusts
CE ConformityEMC Directive 2014/30/EU
ATEX Directive2014/34/EU

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