Endress+Hauser Field Xpert SFX350, Руководство по эксплуатации

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Field Xpert SFX350, SFX370 Commissioning
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5.1.3 Battery life
The battery life of the Field Xpert depends greatly on how it is used.
• The non-Ex version (SFX350) of Field Xpert has an average battery life of up to 18 hours
when actively operated
• The Ex version (SFX370) of Field Xpert has an average battery life of up to 18 hours
when actively operated
• If Field Xpert (SFX350 and SFX370) is not required for a short period and put into
standby mode using Suspend , then it has an average battery life of up to 5 days
• If Field Xpert (SFX350 and SFX370) is not required for a long period and switched off
using Shutdown , then it has an battery life of several weeks
• The actual life depends upon the type of Bluetooth, WLAN and infrared usage as
well as the intensity of data transmission and the screen brightness
• If the battery does become exhausted, any unsaved data in the random access
memory (RAM) will be lost
• Information about the battery status can be found in the information area of the
screen. More information about the battery can be found in chapter 6.3 Dashboard
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5.1.4 Bluetooth transmission range
The Field Xpert is equipped with a Class 2 Bluetooth adapter, which enables a range of up
to 10 m. The range can be reduced by interference from other nearby devices transmitting
in the 2.4 GHz ISM band. Sources of interference may include cordless telephones, wireless
networking devices and also microwave ovens. In certain circumstances, reception
interference may cause a Bluetooth connection to be terminated, making it necessary to
reconnect to the HART or FOUNDATION fieldbus network.
5.2 VIATOR Bluetooth modem
The VIATOR Bluetooth modem is a point-to-point interface for temporary connection to
HART-enabled field devices for configuration purposes. It is approved for hazardous areas
and operates for approx. 20 hours when powered by replaceable batteries. Field Xpert and
the modem communicate with each other via Bluetooth, with the modem connected via
cable to the HART field device.
The VIATOR Bluetooth modem incorporates a Class 1 Bluetooth radio with a range of up
to 100 m.
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CAUTION
The modem is certified for use in hazardous areas, Zone 1.
There is the risk of unintentionally overloading the protective circuits with the result that
they no longer work correctly.
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Once a modem has been used with a non-Ex device, it may not be used in an Ex facility
afterwards.
The modem must only be operated when the battery compartment is closed.