IMKO Trime-GW, Руководство по эксплуатации

Страница: 6 / 35

1.3
Configuration
The instrument configuration is set optimally at the factory prior to delivery of the TRIME-GW. In
some cases, further optimisation of these instrument-internal settings may be necessary.
The following TRIME-GW settings can be altered:

Product selection switch (0..F initially use switch setting 8)

Offset correction (shifting the measurements)

Averaging time (reaction speed of the readings)

Calibration and temperature compensation (when using a variety of materials)

Behaviour during filling/discharge, i.e. where material being measured is not always present
(e.g. in the discharge chute)
These functions are described in detail in Section 4.1
Operating the TRIME®-GW measure-
ment systems in an intermittent flow of material on page 23
Each of these settings remains unaltered even after the instrument is turned off, i.e. permanent
storage.
1.3.1 Product selection switch
After you wired up the system as described initially start with the switch setting 8, after the system
is running take samples close to the probe and compare the value of the TRIME-GW with the
result of your reference instrument.
Example:
The TRIME-GW shows an value of 18,0% the reference instrument shows an value of 15,0% so
you have to change the switch setting from initial setting 8 to the new switch setting B
The here shown values are for the use with the standard calibration set for the measurement in
grain (for use with maize, wheat, rye and barley), for other materials these values are specific:
Table 2
Switch position Switch (Offset
to raw value)
Temperature compensation:
0 + 3 % Inactive (for testing)
1 +10 % Active
2 + 9 % Active
3 + 8 % Active
4 + 7 % Active
5 + 6 % Active
6 + 5 % Active
7 + 4 % Active
8 + 3 % Active
9 + 2 % Active
A + 1 % Active
B ± 0 % Active
C - 1 % Active
D - 2 % Active
E - 3 % Active
F - 4 % Active
1.3.2 Offset-correction
The measurements taken by the TRIME-GW may vary slightly depending on the location of the
probe in the dryer because metallic components or hollow spaces (e.g. the dryer walls or baffle
structures inside the dryer) in the immediate vicinity of the probe may affect measurement. In
order to correct these installation-related but constant and reproducible errors, a so-called "offset-
_____________________________________________________________________________
6