Kotron 801型射频电容变送器.pdf

Kotron® Model 801 RF Capacitance Transmitter for Level/Flow/Volume D E S C R I P T I O N The Kotron Model 801 Transmitter is a new generation RF Capacitance multi-function transmitter that offers the user unparalleled power. The preamplifier circuit pro- vides installation flexibility of a 2500 feet maximum remote distance. The Model 801 can interface with two separate vessels, essentially making it a mini-multiplexer, while software mathematics allow for the sum or differen- tial of the two signals. F E A T U R E S • Capability for dual input of two probes from separate vessels. • The level signal from one vessel can be mathematically added to or subtracted from another vessel. • Level/Volume and Level/Flow characterization for all standard vessels and flumes/weirs. • Integral keypad on front panel maintains NEMA 4X rating; no need to open the enclosure during calibra- tion or setup. • Provides one 4–20 mA isolated analog output signal. • Four 10-amp SPDT relays provide complete flexibility from simple alarm applications to complex pump control including lead/lag alternation of pumps. • 16-character alphanumeric display of all parameters. A P P L I C A T I O N S • Display may be configured in units of level, volume, or flow. • Hydrocarbons and solvents • Continuous diagnostics check all major functions of the • Slurries device including integrity of the probe. • Viscous fluids • Unit may