Profibus PA to Pneumatic Signal Converter



The FP303 is a converter mainly intended for interface of a PROFIBUS system to a pneumatically actuated control valve, or a positioner. The FP303 produces a default 3~15 psi (0.2~1.0 kg/cm2 ) or extended 3~30 (0,2~2,1 kg/cm2) psi output, proportional to an input received over the PROFIBUS PA network.

The digital technology used in the FP303 enables an easy interface between the field and the control room and also includes several interesting features that considerably reduce the installation, operation and maintenance costs.

Some Characteristics

PROFIBUS PA, digital only, complies with IEC 1158-2 (H1): 31.25 kbit/sand voltage mode with bus power
3-15 psi (0,2-1,0 kg/cm²) or 3~30psi (0,2~2,1 kg/cm²)
Output Capacity

3.40 Nm3/h (2 scfm) @ 1.24 bar (18 psi) air supply;
6.80 Nm3/h (4 scfm) @ 2.8 bar (40 psi) air supply;
15.30 Nm3/h (9 scfm) @7 bar (100 psi) air supply.

0.4% of span
Power Supply
Bus powered: 9-32 Vdc
Power Consumption
Quiescent 12 mA
Using local adjustment magnetic tool if device is fitted with LCD display. Complete configuration possible using PC software interface.
Pressure Supply
18 - 100 psi (1,24 - 7 kg/cm²)
Optional LCD indicator
Injected low copper aluminum with polyester painting or 316 stainless steel housing
Process Temperature Limits
-40 to 85ºC (-40 to 185 ºF)
Ambient Humidity Limits
0 to100 % RH
Hazardous Area Certification
Check order code.
Wall, panel, or 2" pipe with optional bracket
Nominal: 1.80 kg;
Digital display adds: 0.13 kg;
Mounting bracket adds: 0.60 kg.

SMAR Device Library CD contains several libraries that will be used in the integration of the SMAR equipments in several applications (of different communication protocols as: HART, Profibus and Foundation™ Fieldbus).

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