Electrical; Verify Operating Atmosphere - Emerson Rosemount 928 Reference Manual

Installation
February 2023
3.4

Electrical

3.4.1 Handling the power module
The Rosemount 928 is self-powered. The included Emerson 701 SmartPower Module-Black
contains two "C" size primary lithium/thionyl chloride batteries. Each battery contains
approximately 1 oz. (2.5 grams) of lithum, for a total of 2 oz. (5 grams) in each pack.
Under normal conditions, the battery materials are self-contained and are not reactive as
long as the batteries and the power module are maintained. Take care to prevent thermal,
electrical, or mechanical damage. Protect contacts to prevent premature discharge.
CAUTION
Equipment damage
The Power Module may be damaged if dropped from heights in excess of 20 ft. (6 m).
Use caution when handling the power module.
3.4.2 Making electrical connections (Rosemount 928XSS01 and
928XUT01 only)
Make electrical connections through the cable entry in the side of the connection head. Be
sure to provide adequate clearance for cover removal.
3.5

Verify operating atmosphere

Verify that the operating atmosphere of the transmitter and the sensor is consistent with
the appropriate hazardous locations certifications.
Table 3-1: Temperature guidelines
Operating limit
-40 °F (-40 °C) to 140 °F (60 °C)
Note
The electrochemical cells in the sensor have a limited shelf life. Store sensor modules in
a cool location that is not excessively humid or dry. Storing sensors for long periods may
shorten their useful service life.
104
Transmitter storage limit
-40 °F (-40 °C) to 185 °F (85 °C)
Reference Manual
00809-0100-4928
Sensor storage
recommendation
34 °F (1 °C) to 45 °F (7 °C)
Emerson.com/Rosemount