Rosemount  Transmitter

Rosemount  702 Wireless Discrete Transmitter

The Rosemount 702 Wireless Discrete Transmitter takes a

variety of non-powered switch types such as pressure, flow

and level switches as input.

It has single or dual channel capacity which cost-

effectively enables access to discrete points that are not

connected to the control system due to wiring costs and lack

of I ⁄ O

With single or dual channel capacity, the Rosemount™ 702

Wireless Discrete Dual Input or Output Transmitter is a

cost-effective, reliable wireless solution.

This transmitter offers control system access to discrete

points that are otherwise not connected due to wiring costs

and lack of I/O, and takes input from a variety of non-

powered switch types such as pressure, flow and level

switches.

Easy to install, this device can be used for simple control

when outputs are being used or as a simple switch.

Specifications

Measurement Type

Discrete single or dual SPST dry contacts

Input

Momentary discrete inputs of 10 millisecond or more duration

Communication Protocol

IEC 62591 (WirelessHART®) 2.4 GHz DSSS

Update Rate

1 second to 60 minutes, user selectable

Power Supply

Replaceable, intrinsically safe lithium-thionyl chloride

power module with PBT polymer enclosure

Housing Material

Low-copper aluminum, or stainless steel

Housing Material

External (WK option) antenna: Maximum of 10mW (10 dBm) EIRP;

Extended range, External (WM option) antenna: Maximum of 18

mW (12.5 dBm) EIRP;

Maximum of 17 mW (12.3 dBm) EIRP

Display/Interface

Optional

•	An installation-ready solution that provides dual discrete inputs
•	Single or dual switch input with logic for limit contact and opposing contact applications
•	Flexibility to meet your most demanding applications
•	Self-organizing network delivers information rich data with >99% reliability
•	WirelessHART™ capabilities extend the full benefits of PlantWeb® to previously inaccessible locations