Peltier temperature-controlled cell holders/cell changers
Peltier temperature-controlled 8-cell changer
Monitoring the cell internal temperature
1
2
3
4
1 Cell sensor
2 Connector for cell sensor
Fig. 13-14 Cell measuring sensor for the Peltier temperature-controlled 8-cell changer
1. Close a standard cell with round stopper with the supplied cell measuring sensor
(Fig. 13-14 / 1) in place of the standard stopper.
2. Put the cell onto any desired cell position. Take the connector (Fig. 13-14 / 2) from
the storage receptacle (Fig. 13-13 / 3) and plug the connector onto the cell
measuring sensor.
3. On the temperature-control unit, switch the selector switch to “cell“.
4. If you no longer need the cell sensor, disconnect it from the connector and plug it
into the storage receptacle (Fig. 13-13 / 3).
Fault indication!
If the temperature displays (Fig. 13-17, 2 and 3) on the control unit are flashing, either
the cell measuring sensor has not been connected properly to the connector, or the
sensor is defective.
Operation without heat exchanger
When operating the Peltier temperature-controlled 6-cell changer without heat exchanger
or with the heat exchanger switched off, cooling is electronically suppressed, heating
however is possible. In this case, if the ambient temperature is constant and the selected
nominal temperature is about 5 degrees above room compartment temperature, the
selected nominal temperatures can be kept to an accuracy of 0.1 – 0.2 degrees at
increased settling time. However, the setting accuracy specified in Section “Technical
data of Peltier temperature-controlled 8-cell changer” on p. 81 refers to the operation of
the cell changer with heat exchanger.
Operation with purging of sample compartment
Below a certain cell block or cell temperature (dew point) and depending on room
temperature and relative humidity, the water contained in the ambient atmosphere
condenses at the cell walls and the cell block. This will result in a distortion of
measurement results.
For the beginning of condensation (dew-point temperature), the following relation
applies:
User’s Manual SPECORD 200/205/210/250 – Accessories 07/2005 87
Analytik Jena AG
To Next Page
Loading...
Need help?
General
