KROHNE CORIMASS E Series EN User Manual
Page 99
99
11.2
MFC 081 Signal Converter
Measured quantities and units
Mass flowrate
Total mass (or total volume
Density
Volume flowrate
Temperature
Option
g, kg, to, oz, lb per second, minute, hour, day
g, kg, to, oz, lb (or cm
3
, dm
3
, m
3
, liter, in
3
, ft
3
, imp. or US gallons)
g, kg, to per cm
3
, dm
3
, m
3
, liter or oz, lb per in
3
, ft
3
, imp. or US gallons
cm
3
, dm
3
, liter, m
3
, in
3
, ft
3
, imp. or US gall per sec., minute, hour, day
°
C or
°
F
sugar concentration in
°
Brix or Baumè, mass or volume concentration
Settable functions
display format, physical units, current, pulse and status outputs,
low-flow cut-off, time constant, primary constant, lower/upper range
limits,, forward/reverse measurement, standby, zero and reset of total
mass
Input and outputs / versions
Standard
Option 1
Option 2
Current output
1
Ч
2
Ч
not galvanically
isolated
2
×
galvanically isolated from
one another
Pulse (frequency) output
1
×
–
–
Status output
1
×
(active)
1
×
(passive)
–
Binary input
1
Ч
1
Ч
–
Current output
Function
−
all operating data adjustable
−
galvanically isolated via optocoupler
Current
0 - 20 mA or 4 - 20 mA
Load
≤
500 ohms
Linearity
≤
0.2% of measured value in range of 2 - 20 mA
≤
0.02% of full scale deflection in range of 0 - 2 mA
Pulse output
not provided if fitted with option (version) 1 or 2,
see above “input and outputs”
Function
−
all operating data adjustable
−
open
collector
−
galvanically isolated via optocoupler
Pulse rate
up to 1300 Hz
Amplitude
max. 24 V
Load rating
≤
150 mA
External voltage
≤
24 V DC
Status indication output
not provided if fitted with option (version) 2, see “input and outputs”
above.
−
all operating data adjustable
−
galvanically isolated via optocoupler
Function
status, limit value, direction identification
Voltage
max. 24 V, also suitable as voltage source for the pulse output
Load rating
short-circuit proof
Binary input
not provided if fitted with option (version) 2, see “input and outputs” above
Function
−
settable for totalizer reset, zero point, status acknowledgement or
changeover standby
measuring mode
−
galvanically isolated via optocoupler
−
active “high” or “low”
Control signals
high:
4 - 24 V or terminals open
low:
0 - 2 V or terminals closed
input current: < 0.2 mA
Low-flow cut-off
0 - 10% of nominal full-scale range
Time constant for flow
1 - 20 seconds (optionally: 0.5 - 20 seconds)
Power supply
Standard
230 V AC,
±
10% or 120 V AC, +10/-15%, 48 - 63 Hz
(changeable 100, 200 or 115 V AC,
±
10%, 48 - 63 Hz)
Special versions
21, 24, 42, 48 V AC, +10/-15%, 48 - 63 Hz
24 V DC,
±
30%
Power consumption
AC : 18 VA
DC : 10 W