KROHNE FMCW24G74T User Manual

Page of 136
6
 OPERATION 
62 
OPTIWAVE 7400-24 C
www.krohne.com
12/2015 - 4004901901 - MA OPTIWAVE7400-24 R01 fr
5
Emp.Spec.Type
Emp.Spec.Type
Emp.Spec.Type
Emp.Spec.Type
Use the average value for tanks which 
contain fixed objects only. Use the 
maximum value for tanks which contain 
many objects or moving objects.
Maximum, Average
?
6
Recording in progress
Recording in progress
Recording in progress
Recording in progress
Reading in progress
Reading in progress
Reading in progress
Reading in progress
7
Empty spectrum graph
Empty spectrum graph
Empty spectrum graph
Empty spectrum graph
This shows a set of spectra (signals found in 
the tank). It also gives the amplitude and  
location of each signal. Push [>>>>] to make a 
selection from the available spectra.
8
Do you want to save the empty spectrum 
data?
Yes [>>>>], No [
]
2.2.0 TESTS
2.2.1
SET OUTPUT
This sets the current output to a test value 
[mA]. The output will change to the given 
value, independent of the measured value. 
The current output will go back to the 
measured value when the display goes back 
to the menu level.
3.5, 4, 6, 8, 10, 12, 14, 16, 
18, 20 or 22 mA
3.5 mA
2.2.2
DIAGNOSTIC
This starts the hardware test. Push [>>>>] many 
times to show:
D1, the time of operation
T1, temperature of the electronic 
converter board
I1, loop current (internally measured 
value)
I2, load current (NOTE: this data is not 
available at this time)
V1, voltage 5.6 V. If the voltage is not 
5.0<V1<5.7, speak to the supplier.
V2, voltage on capacitors. If the voltage is 
not 3.2<V2<3.4, speak to the supplier.
V3, voltage 3.3 V. If the voltage is not 
3.2<V3<3.4, speak to the supplier.
C1, reset counter (watchdog timer). If 
C1>1, replace the signal converter.
If an NE 107 symbol and a status marker are 
shown, refer to 
Device status (markers)
 on 
page 76.
If you push [>>>>] again, the display goes back 
to the menu level.
2.2.3.
The corrected spectrum. TBD.
2.3.0 BASIC PARAM.
2.3.1
TANK HEIGHT
The distance from the flange face / thread 
stop of the tank connection down to the tank 
bottom. If the tank has a dish-shaped or 
conical bottom, the tank height is measured 
to a point on the tank bottom directly below 
the antenna. For more data about level 
measurement, refer to 
Level measurement
 
on page 72. For more data about distance 
measurement, refer to 
Distance 
measurement
 on page 71.
min-max: 0…30 m / 
0…98.4 ft
1
Menu 
No.
Function
Function description
Selection list
Default