FEATURES
• Configuration by means of switches and potentiometers
• Load 300
• Low air consumption
• Stroke 8 to 260 mm (0.3 to 10.2 inches)
• Angle range up to 95 degree
• Supply air pressure up to 6 bar (90 psig), with spool valve up to 7 bar (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 65 (IP 66 on request) and NEMA 4X
• Explosion protection: II 2 G EEx ia IIC T6 according to ATEX or “Intrinsic Safety” according to FM Additional equipment (compatible with SRD991):
• Integrated inductive limit switches, independent of device electronics Accessories (compatible with SRD991):
• Gauge attachment for supply air and outputs
• Booster relay
• SRI990 can be upgraded to a SRD991 by exchange of the electronic motherboard