Burkert Type 8750 - Manual (Page 17)

I NSTALLATION
8750 - 15
P.CO INP
INP P1'P2 Signal type P1'P2 (two pressure sensors),
alternatives to 4‘20A with ;
confirm setting with and return
to P.CO INP
P.CO FILT
FILT 0 With arrow keys set a filter value
from 0 ... 9 for the process input; 0 = smallest effect;
9 = greatest effect; recommended setting: 5 or 6;
confirm setting with
and return to P.CO FILT
P.CO SCAL
DP 1
PV
⊥
000.0
PV T 100.0
DP = decimal point for (0, 1, 2, 3) digits after the
point; PV = process value in m³/h; PV
⊥
= lower
scaling value (here 0 m³/h); is allocated to the
smallest input signal (here 4 mA);
PV
T
= upper scaling value (here 100 m³/h); is
allocated to the largest input signal (here 20 mA);
PV
T must be actualized by the operator according to
the geometry of the control valve.
SP
⊥
xx.xx
SP T xx.xx
With SETP INT, menu item SP is suppressed
(only active with SETP EXT); SP = process setpoint
in m³/h
SP
⊥
= lower scaling value; is allocated to the
smallest value of the standard setpoint signal used
(0/4 mA; 0 V);
SP
T
= upper scaling value; is allocated to the
greatest value of the standard setpoint signal used
(20 mA; 5/10 V)
P.TYPFLOW
UNITM3/H
Select type of controlled variable; with the controlled
variable, the dimension is also specified;
alternatives: TYP FLOW (flow in m³/h) or TYP VELO
(flow velocity in m/s)
TEMP MAN
TEMP 20.0
Set with arrow keys, whether media temperature is
to be measured manually (TEMP MAN) or by
sensor (TEMP SENS); change of temperature (here
+20 °C) is possible with arrow keys
DENS 1.293
DIAM 0015
Medium density required for flow control; here
density for air of 1.293 kg/m³; specify DIAM for
piping diameter (here 15 mm), only possible with
TYP VELO active; confirm last setting with
;
program jumps to P.CO SCAL
P.CO TUNE
P.TUN ACT
P.TYPFLOW
The function P.TUN ACT must be active at the start
of PROCESSTUNE, only then can it be carried out
after completion of the required parameter entries;
change with arrow keys;
with
select the controlled member FLOW or
N.DEF (both define a PI controller)
with
confirm settings and return
to P.CO TUNE
Further to P.CO KV
Further to SIG--ERR