VEGA VEGAPULS 45 4 … 20 mA; HART compact sensor - Manual (Page 44)

44 VEGAPULS 42, 44 and 45 – 4 … 20 mA
Error codes:
E013 No valid measured value
- Sensor in the warm-up phase
- Loss of the useful echo
E017 Adjustment span too small
E036 Sensor program not operating
- Sensor must be reprogrammed
(service)
- Fault signal also appears during
programming
E040 Hardware failure, electronics
defective
Adjustment steps
On the following pages you will find the com-
plete menu schematic of the adjustment mod-
ule MINICOM.
Set up the sensor in the numbered se-
quence:
1. Measuring tube adjustments (only for
measurement in a standpipe)
2. Operating range
3. Adjustment
4. Conditioning
5. Meas. conditions
6. False echo storage (only required when
errors occur during operation).
7. Indication of the useful and noise level
8. Outputs
Short explanations to the setup steps 1 … 8
follow.
1. Measurement in a standpipe
Adjustment is only necessary if the sensor is
mounted in a standpipe (surge or bypass
tube). When measuring in a standpipe, do a
sounding of the distance and correct the
measured value display (which can differ
several percent from the sounded value)
according to the sounding. From then on, the
sensor corrects running time shift of the ra-
dar signal and displays the correct value of
the level in the standpipe (measuring tube).
2
4
4 ... 20 mA
- + ESC
OK
Tank 1
m (d)
12.345
- +
ESC
OK
Tank 1
m (d)
12.345
5.3 Adjustment with adjustment
module MINICOM
Much like with the PC, you can set up and
operate the sensor with the small, detachable
adjustment module MINICOM. The adjust-
ment module is simply plugged into the sen-
sor or into the external indicating instrument
(optional).
The adjustment module, like the adjustment
program VVO on the PC, provides adjust-
ment options for all sensor versions. There
are some differences with MINICOM, how-
ever. It is not possible to enter your own
linearisation curve.
You carry out all adjustment steps with the 6
keys of the adjustment module. A small dis-
play shows you, apart from the measured
value, a short message on the menu item or
the value entered in a menu item.
The volume of information of the small display,
however, cannot be compared with that of the
adjustment program VVO, but you will soon
get used to it and be able to carry out your
adjustments quickly and efficiently with the
small MINICOM.
Set-up