Deltapilot
Provided a »dry« calibration was made or the sensor constants were entered before
calibration, it is not necessary to recalibrate the instrument when the electronic insert is
replaced. The measurement can be taken up again as soon as the new constants have
been entered in the matrix.
•
If the old sensor constants were not entered, the system must be recalibrated.
For new sensor constants see table 2.2.
•
f
o
is the zero frequency (or offset)
• ∆
f is the sensitivity
For the Deltapilot, the zero frequency may also be read from V0H8 when the probe is
unpressurized. This value gives slightly better accuracy, since it accounts for the
orientation of the probe.
Procedure
Step
Matrix
Entry
Significance
1
V3H5
e.g. 101
Enter zero frequency (from probe head or V0H8)
2
-
»E«
Register entry
3
V3H6
e.g. 1.052 Enter sensitivity
4
-
»E«
Register entry
7.4
Repairs
Check the condition of the probes during regular maintenance inspections. If necessary,
free them of build-up. Remember that all probes are sensitive instruments and must be
treated accordingly.
Should the Silometer FMX 570 transmitter or its probes need to be repaired by
Hauser, please send it to your nearest Service Centre with a note containing
the following information:
•
An exact description of the application for which it was used.
•
The physical and chemical properties of the product measured.
•
A short description of the fault.
Caution!
•
Special precautions must be observed when sending probes for repair:
•
Remove all visible traces of product from the probe.
•
If the product can impair health, i.e. is corrosive, poisonous, carcinogenic,
radioactive etc., please check that the probe is thoroughly decontaminated.
•
If the last traces of dangerous products cannot be removed, e.g. product has
penetrated into fissures or diffused into plastic parts, we kindly ask you not to
send the probe for repair.
Chapter 7: Trouble-Shooting
Silometer FMX 570
37
