KROHNE UFM 600 T ALTOSONIC, Installation And Operating Instructions Manual

Page: 57 / 93

D.4 Sub Menu:
3.0.0 INSTALLATION
3.1.0 FLOW DATA
: set flow parameters
3.1.1 PRIM. CORR.
: Primary Correction
This function allows the user to correct the primary constant
that is calculated by the microprocessor. Corrections on the
primary constant are useful in the case of for example poor
installation conditions or comparison to a reference flowme-
ter.
The primary constant will be multiplied by the number dis-
played; 1.0000 E0 means no correction and 1.1000 E0 indi-
cates a correction of + 10%.
Range: 0.0000 E0
≤
Prim. Corr.
≤
2.0000 E0
3.1.2 TRAN. RANGE
: Transit (time) Range
Use this function only if the transit time of the acoustic signal
(the time elapsed between transmission and reception) is
used as output on either the current or the frequency output
(see Fct. 3.3.1 and 3.4.1).
The transit time value that corresponds to 100% output is
programmed.
Range: 2.0000 E1
≤
Tran. Range
≤
1.0000 E5 µsec
Current output example:
If 200 µsec is entered and the 0 - 20 mA output is being
used then an actual transit time of 150 µsec provides a 15
mA output signal. Likewise, if a 4 - 20 mA output is being
used, a 16 mA signal would be the analog output.
Frequency output example:
If 200 µsec is entered and the pulse rate at full flow is pro-
grammed to be 10000 Hz then an actual transit time of
120 µsec is indicated by a 6000 Hz signal.
54
ALTOSONIC
Programming mode
UFM 600 T