Technology of Eclipse Model 705 for Hygienic Applications
Eclipse Model 705 Guided Wave Radar is based upon the technology of TDR (Time Domain Reflectometry). TDR utilizes pulses of electromagnetic energy transmitted down a probe. When a pulse reaches a surface that has a higher dielectric than the air/vapor in which it is traveling, the pulse is reflected. Ultra high-speed timing circuit precisely measures the transit time and provides an accurate level measurement. ECLIPSE GWR can be utilized to detect overall level or interface level, and when used with a HART® splitter, it can transmit two 4–20 mA signals.
Features of Eclipse Model 705 for Hygienic Applications
- Two-wire, 24 VDC, loop-powered transmitter for level, interface, or volume • HART®, FOUNDATION fieldbus™ or PROFIBUS PA digital communications
- Performance not process dependent (changing specific gravity and dielectric constant have no significant effect)
- Designed to BPE Standards
- No level change needed for configuration; no field calibration necessary
- 20-point custom strapping table for volumetric or flow measurement • Can measure reliably to very top of vessel and to the bottom of the probe
- Probes available in 316L SS, AL6XN and Hastelloy® C22 (15Ra MAX electropolished probe rod finish)
- Standard C of C documentation included. (The C of C includes certification of o-rings, PTFE, and PEEK as 21CFR-177 GRAS and USP <88> Class VI at 121 °C, and metallic material CMTRs and surface finish specification.)
- IS, XP, and Non-Incendive approvals
- Two-line, 8-character LCD and 3-button keypad (opt.)
- Quick connect/disconnect probe coupling
- Third Party Safety Integrity Level (SIL) data (FMEDA analysis) for Safety Instrument Systems engineering is available. (HART® version.)
Applications of Eclipse Model 705 for Hygienic Applications
MEDIA : Liquids or slurries; hydrocarbons to waterbased media (dielectric 1.9–100).
VESSELS : Most process or storage vessels, up to rated probe temperature and pressure.
CONDITIONS : Virtually all level measurement and control applications including process conditions exhibiting visible vapors, foam, coating/buildup, surface agitation, bubbling or boiling, high fill/empty rates, low level and varying dielectric media or specific gravity