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Bez. des Novasina EU Gef. Farbe Chemische % relative Feuchte in Relation Literatur
Standards Typ Klasse des Symbole zur Remperatur (x / 100 in a
w
) Referenz
Salz 15°C 20°C 25°C 30°C
SAL-T / 4 SC-4 T weiss CsF (>25%) 4.3 3.8 3.4 3.0 A
SAL-T / 6 SC-6 Xn weiss LiBr 6.9 6.6 6.4 6.2 A
SAL-T / 11 SC-11 Xn weiss LiCl 11.3 11.3 11.3 11.3 A
SAL-T / 33 SC-33 -- blau MgCl
2
-6H
2
O 33.3 33.1 32.8 32.4 A
SAL-T / 53 SC-53 O grün Mg(NO
3
)
2
-6H
2
O 55.9 54.4 52.9 51.4 A
SAL-T / 75 SC-75 -- violett NaCl 75.6 75.5 75.3 75.1 A/B
SAL-T / 90 SC-90 T weiss Ba(Cl)
2
-2H
2
O 90.9 90.5 90.1 89.9 C
SAL-T / 97 SC-97 -- gelb K
2
SO
4
(>20%) 97.9 97.6 97.3 97.0 A
SAL-T / 98 SC-98 T+/N orange K
2
Cr
2
O
7
98.5 98.2 98.0 98.0 A
Lit : A : Greenspan, Humidity Fixed points of Binary Saturated Aequeous Solutions
Journal of Research of the National Bureau of Standards Vol. 81A, No1 01/02 1977
B : Robinson R.A. and Stokes R.H. Electrolyte Solutions, Butterworths London 1959
C : Wexler, Humidity and Moisture Vol.3, Fundamentals and Standards, Robert E.Krieger,
10.2. Equilibrium humidity values of the
SAL-T humidity source
11. Troubleshooting
11.1. What is wrong when ....?
The calibration of the aw-value 1. The sensor is protected by a password
is not possible? 2. The sensor is defective or contaminated and has
to be repalced
You have a drift of the aw-value 1. The stability obsevation factor is set too short
after completing the analyzing 2. The temperature of the probe is not in equilibrium
process? 3. The probe has a second sorption step
Reading of the LCD screen 1. The contrast of the screen is very low
is very bad? 2. The ambient light is bad. Please change the place of the
instrument
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