User manual

OPERATING INSTRUCTION
Technical changes reserved
0141 0315-199 09/2014
Humidity reference cells
for adjustment of humidity sensors
humididty reference cell Thread humidity level
REFZ-
M20 x 1,5 mm -M20 11,3 % RH -11RH
G1/2“ -12Z 22,8% RH -23RH
32,9% RH -33RH
43,2 % RH -43RH
53,5 % RH -54RH
75,4 % RH -75RH
84,7 % RH -85RH
94,0 % RH -94RH
97,4 % RH -97RH
Complete sets
Article no.
Humidity-reference cell set with thread M20 x 1,5 mm: 32,9 % / 754% RH
REFZ-M20-SET1
Humidity-reference cell set with thread G1/2“: 32,9 % / 75,4 % RH
REFZ-12Z-SET1
Close the cap of polystyrene container and wait for at least two hours.
Put the device into operation. You can read the measurements on the display panel and assess stability at the adjustment point. Start adjust
-
ment only if the values on the display vary less than 0.1 % RH in a span of 30 minutes.
After this, rst you can start with the adjustment. Measure the ambient temperature in the vicinity of reference cells. The self measured tempe
-
rature values of the meter can also be used for hygrometers with temperature measuring facility.
Determine humidity value of the reference cell, with respect to the measured temperature of the cell (or in the polystyrene container), from
the salt tables through interpolation. Adjust the displayed value of the test piece with respect to the specied value of the reference cell as per
adjustment instructions of the manufacturer.
Take out the sensing unit with the reference cell from the polystyrene container, carefully remove the cell and continue the process for the next
adjustment point, if required. Take care to sufciently wait for stabilization after changing the cell.
Parameter Value
Available humidity values and llings See ordering data
Reference temperature 23 °C
Allowable operating temperature
(only static operation - no temperature cycles)
20 ... 40 °C
Storage Conditions 0 ... 60 °C
Durability:
Gasket sealed
With cap open
practically unlimited
approx. 2-4 weeks
Cell dimensions D 40 x 105 mm (with cap)
Styrofoam packing dimensions Ø 170 mm x 130 mm
Scope of supply Reference cells with operating instruction on CD
7. Ordering data
6. Technical Data
B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com
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