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Reference Manual
00809-0200-4705, Rev AA
Section 5: Operation and Maintenance
May 2015
Operation and Maintenance
5.8 Average Flow rate filtering period
The average flow rate filtering period controls how heavily the average flow rate is filtered. The
default setting of 1 second will cause the 705 totalizer to report the average flow rate over a
time interval of 1 second. Setting the period to a larger value will reduce noisy flow rate
measurements, but will increase the time constant of the reported value.
5.9 Low-Flow cut-off
The low flow cutoff value can be configured to cause the 705 totalizer to report zero flow for any
rates below the configured threshold. Totalized volume will be unaffected by the low flow cutoff
setting. The 705 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 705
Totalizer 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 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.
Fast keys
2, 2, 2, 2, 3
Fast keys
2, 2, 2, 2, 2
Fast keys
2, 2, 2, 1, 4
Fast keys
3, 5, 1, 4