Rosemount 708

Reference Manual

00809-0100-4708, Rev AD September 2012

Field Communicator Connections

The Power Module needs to be installed in the device for the Field Communicator to interface with the 708. This transmitter uses the Green Power Module; please order model number 701PGNKF. Field communication with this device requires a HART-based Field Communicator using the correct 708 DD. Field communicator connections are located on the power module. The Power Module is keyed and can only be inserted in one orientation. Refer to Figure 1-3for instructions on connecting the Field Communicator to the 708.

Figure 1-3. Connection Diagram

Mechanical

Location

 

When choosing an installation location and position, take into account access

 

to the power module compartment for easy power module replacement.

 

Electronics cover

 

The electronics cover is sealed and cannot be removed. Do not attempt to

 

unscrew the cover.

Electrical

Power Module

 

The Rosemount 708 Wireless Acoustic Transmitter is self-powered. The

 

power module contains one “D” size primary lithium/thionyl chloride battery.

 

Each battery contains approximately 5.0 grams of lithium. Under normal

 

conditions, the battery materials are self-contained and are not reactive as

 

long as the battery and the power module are maintained. Care should be

 

taken to prevent thermal, electrical, or mechanical damage. Contacts should

 

be protected to prevent premature discharge.

 

Use caution when handling the power module, it may be damaged if dropped

 

from heights in excess of 6.10 m (20 ft).

Environmental

Verify that the operating atmosphere of the transmitter is consistent with the

 

appropriate hazardous locations certifications.

 

Temperature Effects

 

The transmitter will operate within specifications for ambient temperatures

 

between -40 and 85 °C (-40 and 185 °F).

1-4

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Emerson 708 manual Mechanical, Electrical, Environmental