Operation
75
3. From the
<Analog interfaces>/<Analog module>
submenu, select the
menu option
<Standby>
.
4. Select Active in the selection window.
The standby input is activated and can be used.
8.11 Adjusting the temperature sensor (ATC)
For physical reasons, there can be a temperature difference in the bath tank
between the temperature sensor and a defined, more remote point within the
bath fluid volume. As a result, the measured temperature deviates slightly from
the actual bath temperature. Adjustment of the temperature sensor can increase
accuracy of the temperature control application.
The adjustment of a temperature sensor requires the determination of the
temperature difference between the temperature sensor and the reference
thermometer. Three adjustment options are available:
• 1-point adjustment: When a sample is tempered to a certain setpoint. The
adjustment curve is displaced parallel to the original curve by the reference
amount.
• 2-point adjustment: When the temperature is controlled between two
setpoints. The slope of the temperature curve is adjusted between two
points.
• 3-point adjustment: When temperature is controlled within a temperature
range. This results in an arched temperature curve.
8.11.1 Adjust internal temperature sensor
This section describes how to adjust the internal temperature sensor of the
device.
The bath tank is filled.
The unit is switched on.
A calibrated reference thermometer is available.
1. Hang the calibrated thermometer in the bath.
2. Bring up the
<Main menu>
.
3. From the
<Install unit>
submenu, select the menu option
<Adjust sensor>
.
4. Set the internal mode to inactive.
The input fields are unlocked.
5. Enter the desired setpoint for internal in the first line and confirm your
entry.
6. Enable the number field highlighted in blue on the first line.
The temperature control application starts. Let the reference thermometer
settle for 10 minutes.
Summary of Contents for DYNEO DD
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