SRD991
Smart Positioner
• Auto-start with self-calibration
• Self diagnostics, status- and diagnostic messages
• Easy operation with three key pads
• Multi-Lingual full text graphical LCD
• VALcare™ or Valve Monitor DTM for valve diagnostics and predictive maintenance
• Stroke 0.3 to 10.2 in with standard lever; larger stroke with special lever
• Angle range up to 95° (up to 300° as option)
• Supply air pressure up to 90 psig, with spool valve up to 105 psig
• Single or double-acting
• Mounting on linear actuators according to NAMUR – IEC 50534-6-1 – VDI/VDE 3847
• Mounting on rotary actuators acc. to VDI/VDE 3845 or IEC60534-6-2
• Protection class IP 66 and NEMA 4X
• Approved for SIL applications
• Explosion protection: Intrinsic safety according to ATEX / IECEx, FM, CSA, INMETRO, NEPSI, EAC, and more
With communication
• HART, FOUNDATION Fieldbus H1, PROFIBUS-PA
• Configuration by means of local keys, handheld terminal (HART), PC with FDT-DTM or I/A Series system Without communication
• Input signal 4 to 20 mA
SRI990
Electro-Pneumatic Positioner
• Configuration by means of switches and potentiometers
• Load 300 Ω
• Low air consumption
• Stroke 0.3 to 10.2 inch
• Angle range up to 95 degree
• Supply air pressure up to 90 psig, with spool valve up to 105 psig
• Single acting or double acting
• Mechanical travel indicator
• Position transmitter 4 – 20 mA as option
• Attachment to stroke actuators directly or according to IEC 534 part 6 (NAMUR)
• Attachment to rotary actuators according to VDI/VDE 3845
• Protection class IP 66 and NEMA 4X
• Explosion protection: II 2 G Ex ib/ia IIB/IIC T4/T6 according to ATEX or “Intrinsic Safety” according to CU TR Additional equipments (compatible to SRD991):
• Integrated inductive limit switches, independent of device electronics Accessories (compatible to SRD991):
• Gauge attachment for supply air and outputs
• Booster relay
• SRI990 can be upgraded to a SRD991 by exchange of the electronic motherboard
SRP981
Pneumatic Positioner
• Independent adjustment of stroke range and zero
• Adjustable amplification and damping
• Split range up to 4-fold possible
• Supply pressure up to 90 psig
• Low vibration effect in all directions
• Mounting according to IEC 534, part 6 (NAMUR)
• Rotation adapter for angles up to 120 °
• Ambient temperature –40 to 176 °F
• Travel 0.3 to 4 in
• Angular range 30 ° to 120 °
• Modular system of additional equipment
• Protection class IP54 (IP 65 on request)
• Certificate No. 90/20226(E2) Lloyd’s Register of Shipping for use on vessels
• Explosion protection – pneumatic basic device: ATEX II 2 G c IIC T6 constructive design – electrical additional built-in equipment: ATEX II 2 G Ex ib/ia IIB/IIC T4/T6
CU TR explosion protection