Foxboro SRD998 series is a smart and highly reliable digital positioner supplied by Schneider Electric. Designed for both single and double acting actuators, SRD998 can be operated from control systems, controllers and PC-based configurations.
SRD series functions applying nozzle and flapper mechanism. This principle is all about a pressure signal produced by a mechanical movement. That is a fluid flow restriction through a nozzle covered by a flat plate called flapper generates the pressure signal.
To mention some benefits of SRD998 we may say:
- Easy operation
- Local configuration
- Auto-start with self-calibration
- High diagnostic level with self-diagnostics features
- Extremely reduced commissioning time
- Reduced installation cost
SRD998 type can be also supplied with an air volume booster for larger actuators or to lower the action time.
Set-point signal :
Enclosure protection degree:
4-20 mA, HART 7
–40°C to 85 °C
Aluminum alloy with Polyester powder coating
IP 66/NEMA 4x
Intrinsic Safety according to ATEX / IECEx, INMETRO, NEPSI