KROHNE OPTIMASS with MFC 300 EN - Manual (Page 110)

110
Ref Display Description & Settings
C 3.x Frequency output X ctd...
C 3.x.4 Measurement
• Volume flow rate • Mass flow rate • Temperature
• Density • Diagnosis1 • Diagnosis 2
• Flow Speed • Concentration 1 • Concentration 2
• Concentration Flow1 • Concentration Flow 2 • Diagnosis 3
C 3.x.5 Range 0…100% (= unit dependent on measured variable selected)
C 3.x.6 Polarity
Both polarities Plus and minus values are used
Positive polarity Negative values are set to 0%
Negative polarity Positive values are set to 0%
Absolute Absolute value is used
Choice of meas. value polarity, note flow direction, see C 1.5.1
C 3.x.7 Limitation -xxx…+xxx % (setting range -150%…+150%)
C 3.x.8 Low flow cutoff
xxxx.x…±xxxx.x unit dependent on measured variable selected
1st value
A
2nd value (hysteresis), values around “0“ are set to “0“
C 3.x.9 Time constant xxx.x s (setting range 000.0…100.0 s)
C 3 x.10 Invert signal
Select:
Off switch closes on every pulse, normally open
On switch opens on every pulse, normally closed
C 3.x.11 Special function
This function is only at output B in devices with 2 frequency outputs
connected to terminals B + D or B + A See Fct. 3.x.11 below
Select:
Off
no special function
Phase shift to D setting of all functions for output B via output D
Phase shift to A setting of all functions for output B via output A
C 3.x.11
Phase shift in relation
to output B
This function is only available at output A or D, in devices with 2 fre-
quency outputs connected to terminals B + D or B + A See Fct. 3.3.11
above!
Select:
Off no phase shift
0° shift signal inversion possible
90° shift signal inversion possible
180° shift signal inversion possible
When Fct. C 3.5.6 Polarity is set to "both polarities“, the flow direction
is indicated (e.g. +90° or -90°)
C 3.x.12 Information
Displays the Serial No, Software No, and calibration date of the circuit
board
C 3.x.13 Simulation For sequence, see Test Level Menu, Fct. B 1
In the following descriptions for the pulse output, "x“ denotes the
terminals:
C 3.2 = A C 3.3 = B C 3.5 = D
C 3.x Pulse output X
C 3.x.1 Pulse shape
Automatic approx. pulse width in [ms] =500 / (max. pulse rate in
[1/s])
Symmetrical: pulse duty factor approx. 1:1
Fixed set in Fct. C 2.x.2