Note
HW key protected parameters
For type-approved and verified FUE380 flowmeter the settings are HW key protected and can
be only read, but not changed via PDM. The HW key is located behind the display and is
thereby protected by the display sealing. The verification sealing may only be broken with the
acceptance of the authorities.
6.4.6
Output A, terminals 56/57:
The pulse rate can be seen on transmitter side label (system nameplate).
The settings are dependig on the ordering. The following table shows the typical recommended
pulse output settings (pulse width 5 ms) for the energy calculator SITRANS FUE950
For optimal benefit, the pulse value and pulse length must be selected as low as possible. The
following calculation formula can be used for determining the lowest pulse value at a pulse
length of 5 ms:
L/pulse > Qs (m
3
/h)/360
For example Qs = 300 m
3
/h; L/pulse > 300/360; L/pulse > 0.83; therefore the pulse value must
be 1 l/pulse (nearest possible ordering selection).
See also the pulse guide in PDM [Device → Pulse guide (offline)].
Table 6-4
Recommended pules values for FUE950
DN
Pulse setting (liter/pulse)
50
1
65
1
80
2.5
100
2.5
125
2.5
150
10
200
10
250
10
300
50
350
50
400
50
500
100
600
100
700
100
800
100
900
100
1000
100
1200
100
Commissioning
6.4 Commissioning via PDM
FUS380/FUE380
56
Operating Instructions, 09/2016, A5E00730100-AB