GESTRA NRG 26-21, Инструкция по установке и эксплуатации

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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
1 2 3 4 5 6
r
26
37
t
s
X
4