Foxboro Eckardt SRD991 Intelligent Positioner

2
SRD991
DS EVE0105 (en)
FUNCTIONAL SPECIFICATIONS (common data for all versions) Travel range Stroke range . . . . . . . . . . . . . . . . . 8…260 mm (0.3 ... 10.2 in) with standard feedback levers; special levers on
request Rotation angle range . . . . . . . . . . . up to 95° (without mechanical stop)
Supply Supply air pressure . . . . . . . . . . . . 1.4 ... 6 bar (20 ... 90 psig)
with spool valve 4) . . . . . . . . . . . . . 1.4 ... 7 bar (20...105psig)
Output to actuator . . . . . . . . . . . . . 0 to ~100 % of supply air pressure (up to 5.5 bar at 6 bar supply air pressure)
Air supply 1) . . . . . . . . . . . . . . . . . . according to ISO 8573-1
Solid particle size and density . . . . class 2 Oil rate . . . . . . . . . . . . . . . . . . . . . . class 3
Response characteristic 2) 3) Sensitivity . . . . . . . . . . . . . . . . . . . . < 0.1% of travel span
Non-linearity (terminal based adjustment) . . . . . . . . < 0.4 % of travel span
Hysteresis . . . . . . . . . . . . . . . . . . . < 0.3 % of travel span Supply air dependence. . . . . . . . . . < 0.1 %/ 1 bar (15 psi)
Temperature effect. . . . . . . . . . . . . < 0.3 %/ 10 K Mechanical vibration 10 to 60 Hz up to 0.14 mm, 60 to 500 Hz up to 2 g . . . . . < 0.25 % of travel span
Air output Nm3/h (scfh) at max. deviation,
SRD single or double acting . . . . . 7.5 Nm3/h (265 scfh) @ 6 bar (90 psig)
3
SRD with spool valve amplifier. . . . 18 Nm /h (636 scfh) @ 6 bar (90 psig)
SRD with booster code F or G. . . . 21 Nm3/h (742 scfh) @ 6 bar (90 psig)
Air consumption (steady state) Nl/h (scfh)
SRD single acting . . . . . . . . . . . . . 150 Nl/h (5.3 scfh) @ 6 bar (90 psig)
SRD double acting . . . . . . . . . . . . .400 Nl/h (14.1 scfh) @ 6 bar (90 psig)
SRD with spool valve amplifier . . . .550 Nl/h (19.4 scfh) @ 6 bar (90 psig)
Operation and Configuration The local LCD enables a fast and easy configuration as well as clear diagnostic.
Local . . . . . . . . . . . . . . . . . . . . . . . with local key pads Display. . . . . . . . . . . . . . . . . . . . . . Multi-lingual Graphic LCD and five LEDs
PHYSICAL SPECIFICATIONS (common data for all versions) Mounting Onto any valve.
Linear Actuator up to 260mm with standard feedback lever, for bigger stroke please consults us
Rotary Actuator up to 95° rotation and up to 300° with special construction
Materials Housing and covers . . . . . . . . . . . . Aluminum (Alloy No. 230) finished with DD-varnish
All moving parts of feedback system . . . . . . . . . 1.4306 / 1.4571 / 1.4104
Attachment kits . . . . . . . . . . . . . . . V4A or Aluminum, finished with DD varnish
(depending upon version) . . . . . . . (Alloy No. 230) Mounting bracket . . . . . . . . . . . . . . Aluminum (Alloy No. 230)
Pneumatic diaphragms . . . . . . . . . PVMQ (Silicone elastomer, suitable for use in the paint industry)
Weight Single acting . . . . . . . . . . . . . . . . . approx. 1.7 kg (3.7 lbs)
Double acting. . . . . . . . . . . . . . . . . approx. 2.0 kg (4.4 lbs)
Pneumatic connection
NAMUR mounting . . . . . . . . . . . . . G 1/4 or 1/4-18NPT with additional connection manifold