Emerson Appendix A, Reference Data, SPECIFICATIONS Functional Specifications, Rosemount 848L

Reference Manual

00809-0100-4696, Rev AA September 2004

Rosemount 848L

Appendix A Reference Data

SPECIFICATIONS

Functional Specifications

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-1 Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-5 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-7

Inputs

8 Discrete Inputs suitable for NAMUR specification sensors, 9-32VDC sourcing sensors or general switch inputs (dry contact)

NAMUR Sensors:

On state: > 2.1 mA

Off state: < 1.2 mA

9-32 VDC Sourcing Sensors: On state: > 50% of I/O voltage Off state: < 20% of I/O voltage

General Switch Inputs:

On state: < 500 Ohms

Off state: > 5k Ohms

Minimum Pulse Width: 1ms

Maximum Pulse Input Frequency: 500Hz

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