Signet 8150 Manual page 15

15. Sensitivity
The SENSITIVITY setting determines how the 8150 responds to sudden surges in the À ow rate. It "overrides" the SPEED function just
long enough to allow an actual change in À ow rate to be displayed, then resumes the averaging. The result is a smooth À ow display
and a quick response to large shifts in the À ow rate.
No SPEED, no SENSITIVITY
With SPEED averaging set to 0 (zero) and with SENSITIVITY set
to zero, the À ow rate may be very unstable. This line represents
the actual output of the À ow sensor as it responds to unstable
À ow conditions in the pipe.
SPEED only
With SPEED set to 60 seconds and SENSITIVITY still set to zero
the À ow rate is stabilized, but a sharp change in À ow rate is not
represented for 60 seconds or longer. (dotted green line).
SPEED and SENSITIVITY
With SPEED at 60 seconds and SENSITIVITY set to 6, the À ow
rate is stabilized, while the sudden shift in À ow is reÀ ected very
quickly. (dotted blue line)
NOTE: The SENSITIVITY function is ineffective if the SPEED function is set to zero (seconds).
Example: Change the SENSITIVITY from 5 to 8
1. Hold the ENTER key for 2 seconds, then enter the SECURITY CODE.
The display shows the ¿ rst item in the menu, AutoCAL.
2. Press the UP key once to scroll to SENSITIVITY.
The display shows DISP SENS and the current sensitivity setting.
3. Press the RIGHT key to select the SENSITIVITY for editing.
The current SENSITIVITY setting begins À ashing.
4. Press the UP key three times to scroll from 5 to 8.
5. Press the ENTER key to return to the menu.
6. Press UP and DOWN keys together to exit the menu and return to normal operation.
The display shows "Storing" for a few seconds, then returns to the normal operating display.
1
2
6
8150 Flow Totalizer
2 s
ENTER
2 s
3
3x
10 s 20 s 30 s 40 s
Enter Security code
5
4
50 s 60 s 70 s
ENTER
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