Specifications; Functional Specifications; A.1 Specifications - Emerson Rosemount 702DX22 Reference Manual

Reference Manual
00809-0200-4702, Rev CA
Appendix A
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 107
Dimensional drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 111
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 112
A.1

Specifications

A.1.1

Functional specifications

Discrete Input
Single or dual SPST dry contacts, single SPDT dry contacts or leak detection. To maintain I.S.
ratings, contacts must be limited to simple switches or leak detection only.
Switching Threshold, Model 702DX22
Open > 1000 Ohm
Closed < 100 Ohm
Switching Threshold, Models 702DX32, 702DX42
Open > 100 K Ohm
Closed < 5 K Ohm
Momentary Discrete Input, Models 702DX32, 702DX42
Detects momentary discrete inputs of 10 millisecond or more duration. At each wireless
update, device reports current discrete state and accumulating count of close-open cycles.
Accumulating count registers from 0 to 999,999, then re-sets to 0.
Discrete Output, Model 702DX42
Maximum Rating: 26 Vdc, 100 mA
On resistance: typical 1 Ohm
Wireless output
IEC 62591 (WirelessHART) 2.4 GHz DSSS.
Specifications and Reference Data
Specifications and Reference
Data
Appendix A: Specifications and Reference Data
February 2013
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