Power Module Replacement - Emerson Rosemount 248 Quick Start Manual

Wireless temperature transmitter

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July 2020

Power module replacement

Expected power module life is 10 years at reference conditions.

When power module replacement is required, remove the cover and remove

the Green Power Module. Replace the Green Power Module (part number

701PGNKF) and replace the cover. Tighten to specification and verify

operation.

Figure 6-1: Exploded Power Module View

6.1

Handling considerations

The Green Power Module with the wireless unit contains one "D" size

primary lithium-thionyl chloride battery (Green Power Module, model

number 701PGNKF). 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 batteries and the pack integrity are

maintained. Care should be taken to prevent thermal, electrical or

mechanical damage.

Contacts should be protected to prevent premature discharge.

Note

Power modules should be stored in a clean and dry area. For maximum

power module life, storage temperature should not exceed 86 °F (30 °C).

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Reference conditions are 70° F (21° C), transmit rate of once per minute, and routing

data for three additional network devices.

Quick Start Guide

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