BASF EXACTUS User Manual page 65

Optical thermometer
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2. Click the Use Analog Output button.
3. Click on either Voltage or Current button.
4. Go to the corresponding section and type in the minimum temperature and the maximum
temperature and the corresponding voltage or current values. Voltages between 0 and 10
volts and currents between 0 and 20mA may be entered. See Scaling section below for
details.
5. Values may be stored in two ways. By pressing the Save button the values are stored in
the probes memory and are retained even if the probe is reset or powered down. Values
may also be stored by pressing the Apply button; however these values will not be
retained if the probe is reset or powered down. Pressing the Apply button will interrupt
the output from the probe for two to four seconds. Pressing the Save button will interrupt
output from the probe for several seconds.
Scaling:
The analog output will be scaled according to the four values entered in step four above. The
minimum and maximum temperatures entered can be the minimum and maximum temperature
the probe will read, or they could be just a few degrees from each other. When the Analog
Output Module is configured the first time, the default value for minimum temperature will be
0.00°C. The maximum temperature will be the same as the maximum temperature of the probe
connected; values larger than the maximum temperature of the probe will not be accepted.
The analog output may be configured to a number of different electrical ranges. For example, if
a voltage that varies from +1 to +5 volts is desired, simply enter these voltages and their
corresponding temperatures into the table. If the temperature goes below the temperature
assigned to +1 volt the output will stay at +1 volt. If the temperature exceeds the temperature
assigned to +5 volts, the output will stay at +5 volts. The resolution of the Analog Output
Module in voltage mode is 10,000 different voltage levels spread over the 0 – 10 V range; when
the voltage output range is reduced (e.g. 0 – 5V) the number of different voltage levels will be
Figure A-18
-61-

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