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INSTRUCTION MANUAL
Technical changes reserved
B+B 0141 0315-117 September 2010
B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
Fon +49 771 83160 | Fax +49 771 831650 | [email protected] | bb-sensors.com
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2. Recalibration
The measuring device will be calibrated before leaving our works. A recalibration is, therefore, not necessary. If you want to
calibrate the device for an existing sensor, please proceed as follows: (calibrate 0°C before scale as otherwise correct
adjustment cannot be guaranteed).
Normally sensor adjustment by means of 0° C potentiometer is sufficent. We do not recommend a scale compensation in order
to maintain the specified accuracy of the device. If an accurate reference temperature is available, choose highest temperature
possible to calibrate the device.
Calibration point 0°C :
Put ice cubes in a glass and pour cold water till ice cubes are almost covered. Put sensor
into glass, wait approx. 15 minutes, then stirr water with a spoonhandle. Wait for stable
value to be displayed, then turn zero point potentiometer (NP, Potentiometer next to
sensor connection) by means of a screw driver till display shows „000“.
Calibration point scale :
To set the pitch (Scale) a fixed reference temperature is required (the higher the better).
Subject sensor to this temperature and set respective display value according to corre-
tion table value (e.g. reference temperature 700°C --> value to be set: 711) by means of
pitch
potentiometer
(outer
potentiometer).
Please
note
that boiling water should not be used as a temperature reference as the
boiling temperature is dependent on the atmospheric pressure.(If using a reference
thermometer stating the precise temperature you may, however even use boiling water.)