User Manual

OPERATION 6
65
OPTIWAVE 7400-24 C
www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en
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 79.
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 75. For more data about distance
measurement, refer to Distance
measurement on page 74.
min-max: 0…30 m /
0…98.4 ft
1
2.3.2 BLOCK. DIST. Blocking distance. The distance from the
flange to the top limit of the measuring
range (a zone given by the user where it is
not possible to measure). We recommend a
blocking distance of 500 mm / 19.7¨ below
the process connection. We also
recommend that the limit of the measuring
range is not less than the blocking distance.
If it is possible that the tank contents will go
above the blocking distance, set 2.5.5
OVERF. ENAB. to "Yes". If the distance is
less than the blocking distance, the device
continues to display the blocking distance.
min: 100 mm / 13.9¨ or
2.3.6 ANTENNA.EXT
max: 2.3.1 TANK HEIGHT
500 mm / 19.7¨
2.3.3 TIME CONST. Using this function, the device processes
several measurement readings to filter out
disturbances. Increasing the time constant
will smoothen the integrated readings,
decreasing will roughen the readings.
s=seconds.
min-max: 1.00...100.00 s 5.00 s
2.3.4 TAG NAME The device has an identification code (tag
name). The supervisor can enter a
maximum of 8 numbers or letters.
1
2.3.5 ANTENNA.EXT Optional antenna extensions.These are
attached between the flange and the
antenna.
min: 0 mm / 0¨ or 2.3.6
ANTENNA.EXT
max: 2000 mm / 78.7¨ or
2.3.1 TANK HEIGHT
1
Menu
No.
Function Function description Selection list Default