2808B Installation / 2-1
Section 2
INSTALLATION
2.1 INSTALLATION NOTES
Prior to installing the Transmitter, factors such as environmental temperature, main-
tenance access, and Transmitter construction materials will require consideration.
Environmental Temperature: The temperature operating ranges for the wet end and elec-
tronics assemblies of the Transmitter are as follows:
1. Wet end w/ DC 200 fill: -40 to 220°F (-40 to 104°C)
2. Electronic - Amplifier Board -25 to 185°F (-32 to 85°C)
3. Electronic - Digital Indicator -22 to 158°F (-30 to 70°C)
When installing a Transmitter, it is important to consider the temperature range of all
items listed above as each has different limits. For example, if item 1 were at the upper
limit of its range (220°F), item 2 would be 35°F over its limit of 185°F. Likewise, if the same
Transmitter included a digital indicator, item 3, the indicator would be 62°F above its
158°F limit.
Under no circumstances should the internal temperature of the electronics housing be al-
lowed to go above the upper limits specified above for items 2 and 3. Doing so will cause
output errors, and possibly result in damage to the electronic assemblies. Going below the
lower temperature limit can also lead to performance or failure problems. If temperature
extremes are anticipated, the Transmitter should be installed in a more favorable en-
vironment or be provided with other means of protection.
Caution: The Transmitter must always be operated within the temperature range of its wet
end and electronic assemblies. Prolonged operation under extreme conditions could result
in eventual Transmitter damage.
Maintenance Access: Select a site that provides ease of access for maintenance and repairs.
Inspect the site for any potential hazards that could result in accidental damage to equip-
ment or injury to persons. Clearly post any dangers that may not be apparent to operators.
Construction Materials: Prior to mounting the Transmitter, check its construction materials
to insure that they are compatible with the process medium. Some gases or liquids will
react with certain metals and result in permanent damage to the Transmitter. This type of
damage is not covered under the warranty agreement. If you need assistance, contact the
Bristol Babcock Service Department in Watertown, Connecticut.
2.2 INSTALLATIONS IN HAZARDOUS AREAS
The information that follows only applies to Transmitter models approved for use in
hazardous areas. Models without approval must never be used for these installations.
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