GESTRA NRG 26-21 - Basic Settings; Factory Setting Configuration; Setting Active Measuring Range

14
Basic settings
Factory setting
The code switch r is set at our factory so that the max. measuring range for water (conductivity
≥ 20 μS/cm) is activated. The max. measuring range is the range between the lower and the upper end
of the measuring range. Fig. 11
The level electrode features the following factory set default values:

Measuring range up to 350 mm: Code switch r position 4, 5 ON, 1, 2, 3, 6 OFF

Measuring range 350 mm up to 750 mm: Code switch r position 4 ON, 1, 2, 3, 5, 6 OFF

Measuring range 750 mm up to 1500 mm: Code switch r position 3 ON, 1, 2, 4, 5, 6 OFF

Measuring range 1500 mm up to 2500 mm: Code switch r position 2 ON, 1, 3, 4, 5, 6 OFF
X Selected (active) measuring range [mm]
4 Measuring range (mm) = xxx % see Fig. 2
s Lower end of measuring range, adjustable
t Upper end of measuring range, adjustable
u Diagram for water, conductivity ≥ 20 µS/cm
v Diagram for water, conductivity ≥ 0.5 µS/cm
w Diagram for fuel oil EL, dielectric constant ε
r
2.3
Lower measuring point
Attention

If X is clearly below 4 change the code switch settings according to the diagrams u,
v w for the fluid to be measured.
Establishing active measuring range (control range)
Within the measuring range of the electrode you can establish the active measuring range. Use code
switch r Fig. 9 to establish the length of the active measuring range.
Fig. 12
ON
12
3
4
5
6
r
26 37
t
s
X
4