Programming The High Switching Threshold - Burkert 8041 Manuel Utilisateur

3.6.3 Programming the high switching threshold

The high switching threshold can be programmed within
a range between the low switching threshold value and
100% of the full scale.
- The green led flashes once and the red led is off
(Readout mode). If not, refer to § 3.1
- Press the push-button 3 times briefly: the green led
flashes four times and the bargraph shows the
present high threshold (in % of the full scale)
- Press and hold the push-button: after 2 seconds,
the red led lights up (Configuration mode) and the first
bargraph led following the low threshold value flashes
9 times (1 flash = 1% of the full scale) then it lights up;
The next leds then light up one after the other up to
100%;
Release the push-button when the desired number of
leds is lit (1 led lit = 10% of the full scale).
Press and hold the push-button again: after 2 seconds,
the next led flashes (1 flash = 1% of the full scale).
Release the push-button when the led has flashed the
desired times.
- If necessary, press and hold the push-button again to
change the displayed value.
- Press the push-button briefly to validate the value
visualized by the bargraph and automatically return to the
flow velocity Readout mode or wait for 10 s to return to
the flow velocity Readout mode without validating the
displayed value.
8041
CONFIGURATION
19
Bargraph status
0 100% FS
1 2 3 4 5 6 7 8 910
Present measured flow velocity
0 100% FS
1 2 3 4 5 6 7 8 910
Present high thresh old
(full scale by default)
0 100% FS
1 2 3 4 5 6 7 8 910
0 100% FS
1 2 3 4 5 6 7 8 910
0 100% FS
1 2 3 4 5 6 7 8 910
0 100% FS
1 2 3 4 5 6 7 8 910
8 leds lit = 80% of the full scale
9th Led flashing twice = 2% of
the full scale
The bargraph shows 82% of the
full scale, i.e. by a 0-10 m/s mea-
suring range, this corresponds to
a high threshold of 8.2 m/s