Pressure Transmitters srettimsnarT erusserP

T. Overview of pressure transmitters Technical explanations for pressure transmitters Selection matrix A guide to choosing the correct pressure transmitter Pressure Transmitters with ceramic measuring cell T.1 Pressure transmitters, Performance series, hex 24 Standard pressure ranges: Overpressure protection: Output signal (alternative): Housing materials: Sealing materials: Threads: Types: Pressure Transmitters with oil-filled measuring cell T.2 Robust pressure transmitter, hex 22, stainless steel „303“ Standard pressure ranges: Overpressure protection: Output signal (alternative): Housing materials:...

Pressure Transmitters with SoS technology T.4 Pressure transmitters, High-Performance series, hex 22 Standard pressure ranges: Overpressure protection: Output signal (alternative): Housing materials: Sealing materials: Thread: Types: Digital pressure transmitters, CANopen / J1939-Protocol, hex 22 Standard pressure ranges: Overpressure protection: Output protocol: Housing materials: Sealing materials: Electrical connection: Thread: Types: Accessories • Mating plugs • Thread-Adapters • Display Pressure Transmitters with CAN-Bus interface T.5

Technical explanations for pressure transmitters What is a pressure transmitter? A pressure transmitter (also called pressure transducer or pressure converter) is a component used to convert a pneumatic or hydraulic pressure to an electric (usually analogue and linear) output signal, such as a current or voltage. electrical connection How does a pressure transmitter work? The pressure measuring cell fitted has a membrane (1) that is exposed to the pressure to be measured. Affixed on this membrane is a bridge circuit consisting of four ohmic resistors in the form of a Wheatstone bridge. The values...

Voltage output 0 - 10 V Transmitters with an output signal of 0 to 10 V are a commonly used variant due to their simple initial operation and straightforward scaling of the signal (0 V for 0 bar). The output load must be selected as highly resistive (with typical minimum value 4.7 kΩ). SUCO transmitters with voltage output have a 3-wire design. Conversion formula for pressure and voltage: Conversion formula for pressure and voltage: Uout = pressure applied x 10 V pressure range Voltage output 0.5 – 4.5 V ratiometric SUCO transmitters with ratiometric output are operated with a 5 V supply voltage...

Technical explanations for pressure transmitters Accuracy (to DIN EN 61298) The (measuring) accuracy of pressure transmitters is specified by SUCO as ±0.5% or ±1% of the span (also called full scale). Accuracy includes zero point offset, nonlinearity, hysteresis and non-repeatability, and is defined at room temperature and new state. This method defines the maximum deviation from the ideal line (in contrast to the BFSL method in which the average deviation is given). Other factors influencing the total accuracy, such as temperature and ageing, are specified separately. Hysteresis (to DIN EN 61298)...

digital word Resolution The A/D resolution (analogue - digital) of an pressure transmitter defines the smallest change of the analogue - digital - analogue conversion which takes places by the signal processing of an pressure transmitter. If for example 13-bit resolution is used for an pressure transmitter with a 100 bar setting range, the smallest signal change is 8192 steps (213). As state of the art a resolution of 12 bits and hence 4096 steps (212) is typical. Therefore pressure changes of 100 bar / 4096 = 0.024 bar can be recorded. Response time The response or circuit time is shorter than...

Technical explanations for pressure transmitters Conversion chart for pressure units Insulation strength According to the latest specifications for immunity to surges and lightning protection, the following must be taken into account when testing insulation strength: With insulation test devices having an inner resistance exceeding 42 O, the insulation strength of pressure transmitters can be tested up to 500 VDC. All contacts must be tested short-circuited against the housing. For a specific threshold value of test voltage, the protective circuit for surge protection is activated without any...

Type / series

Pressure transmitters, Performance series Very attractively priced electronic pressure transmitters High overpressure protection (up to 2 x) Small, compact transmitters High level of adaptability to your requirements (custom solutions) Ceramic sensor in thick film technology Housing made of stainless steel (1.4305), others on request Available as ‘plasma cleaned for oxygen applications‘1) For oxygen applications, the EPDM diaphragm can only be used up to 250 bar and a media temperature

Pressure transmitters, Performance series Technical details Output signal: 11 - 32 VDC with reverse voltage protection 9.6 - 32 VDC with reverse voltage protection Permissible load / apparent ohmic resistance: Idle power consumption: 0601 / 0602 Standard pressure ranges pnom: Burst pressure : Mechanical life expectancy: 5,000,000 pulsations at rise rates to 1,000 bar/s at pnom Permitted pressure change rate: ≤ ±1 % full scale (FS) at room temperature, ±0.5 % BFSL Long term stability: ±0.3 % of full scale (FS) per year Temperature error : Compensated temperature range: Temperature range ambient:...

Electrical connectors and threads x ~ 60 mm without socket device x ~ 77 mm with socket device Sealing ring

Article matrix for pressure transmitters Pressure Pressure range connection Seal material Electrical connection Burst Pressure Pressure range Pressure connection G1/4 – DIN EN ISO 1179-2 (DIN 3852-11), form E Seal material – Application areas Hydraulic/machine oil, air, nitrogen, water, etc. Brake fluid, water, acetylene, hydrogen, oxygen etc. Hydraulic fluids (HFA, HFB, HFD), petrol/gasoline, etc. Hydraulic/machine oil, water, air, nitrogen, acetylene, etc. Electrical connection DIN EN 175301-803-A (DIN 43650-A); socket device included Article number Static pressure, dynamic pressure 30 to 50%...