BIFFI IMVS2000v2 - Page 17

Installation, Operation and Maintenance Manual
September 2019
MAN720_IMVS2000v2_IOM Rev. 6
Section 4: Device Description
Device Description
Stroking Time Limits (***)
Min. Actuator Stroking Time 2 sec.
Max. Actutor Stroking Time 300 sec.
Max. Ratio between Op. and Cl. times 10 (****)
Modbus Rtu (optional card) (*****)
Transmission Technology RS485
Baud rate (configurable) 600,1200,2400,4800,9600,19200,38400 bps
Parity Bit (configurable) Even, Odd, None
Stop Bit (according to Parity Bit) 1, 2
Galvanic Insulation from Logic Yes
4-20 mA Analog Output + HART (optional card) (******)
Feedback Signal Pressure or Position
Output Current Range 4-20 mA
Maximum Load (cable+resistor) 300 ohm
External Power Supply Voltage 21.6 - 26.4Vdc – max 21 mA
Galvanic Insulation from Logic Yes
Notes:
(*) Consult Factory for availability.
(**) Consult Factory for applications over 345 barg.
(***) Contact Biffi for the availability of applications that do not respect these ranges.
(****) Ratio greater than 5 affects the accuracy of the PST.
(particularly for pneumatic application)
(*****) See [3] for details.
(******) See [2] for details.
(#) For CSA/CSAus devices must be supplied from a limited energy source.
(voltage available is to be limited to 35 Vdc)
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