40
Reference Manual
00809-0100-4248, Rev CA
May 2017
5.9
Low-Flow cut-off
The low flow cutoff value can be configured to cause the Rosemount 705 Transmitter to report zero flow
for any rates below the configured threshold. Totalized volume will be unaffected by the low flow cutoff
setting. The transmitter will continue to totalize any detectable volume - even for very small flow rates.
5.10
Input sensitivity
The input sensitivity setting is used to adjust the minimum input voltage required for the Rosemount
705 Transmitter to count pulses. There are two settings “Normal” and “Reduced”. Under most
circumstances, the “Normal” setting will provide the most accurate flow readings. The “Reduced”
setting should be used in environments where outside interference is causing a degradation of
transmitter performance, such as picking up extra counts/showing a flow rate when the turbine meter is
not rotating. If the “Reduced” setting is selected, care should be taken to verify the device is properly
reporting flow, particularly at low frequencies.
5.11
How to reset the totalized volume
The totalized volume can be reset via the wireless network, through the wireless gateway, using a button
located behind the electronics/LCD display side housing cover, or by connecting to the local wired
maintenance port. To avoid any loss of volume accumulation, the totalizer should only be reset when the
flow through the attached turbine meter has been stopped.
5.12
Service support
To expedite the return process outside of the United States, contact the nearest Emerson representative.
Within the United States, call the Emerson Instrument and Valves Response Center using the
1-800-654-RSMT (7768) toll-free number. This center, available 24 hours a day, will assist you with any
needed information or materials.
The center will ask for the following information:
Product model
Serial numbers
The last process material to which the product was exposed
Fast Keys
2, 2, 2, 2, 2
Fast Keys
2, 2, 2,1, 4
Fast Keys
3, 5, 1, 4
Содержание Rosemount 705
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