Badger Meter SRD/SRI Valve Positioners - Manual (Page 5)

DESCRIPTION
The SRI990 Analog Positioner with analog input 4…20 mA is designed to operate pneumatic valve actuators It offers an easy
adjustment by means of switches and potentiometers The modular structure of this positioner series enables conversion
from an analog to an Intelligent positioner by easily exchanging the electronics The SRI990-T Electrical Position Transmitter
includes the optional Position Transmitter but no controller and no pneumatic components The positon of the actuator is
given as 4…20 mA output signal
Features
• Configuration by means of switches and potentiometers
• Load 300 Ω
• Low air consumption
• Stroke is 8…260 mm (0 3…10 2 in )
• Angle range up to 95 °
• 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
• Optional 4…20 mA position transmitter
• 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 ib/ia IIB/IIC T4/T6 according to ATEX or “Intrinsic Safety” according to FM
• Additional equipment (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 an SRD991 by exchange of the electronic motherboard
Description
Page 5 August 2014 POS-UM-00013-EN-02