Jenway 6715 - Manual (Page 168)

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If air segmentation is required remove the sample and press the Start button. View the air being taken
up through the polythene tube to the cuvette. Press Stop when the air reaches the required position.
Further adjustment to the air uptake can be made using the + / - (uptake air) button. When the correct
level is achieved press the
Done button. A drain cycle will be performed and the instrument will return
to the Accessory Settings menu.
The sample and air volumes selected during calibration are stored in the method and will be accurately
reproduced during the measurement cycles.
note: A typical use for air segmentation is to ‘push’ a micro-volume of sample into the cuvette. To do
this, take up a very small sample volume into the polythene tube, while viewing it, take up air to move
the sample into the cuvette.
note: To ensure good laboratory practice before turning off the instrument ensure that the sample
has drained from the sipper pump into the waste receptacle.
Peltier operation
When the Peltier module is fitted an additional icon will be displayed at the top of the screen in the
status bar.
The red thermometer indicates that the set temperature has not been achieved and cooling/heating is
taking place.
The first value shows the actual peltier temperature.
The second displayed value shows the current set temperature.
Setting can be made between 20°C and 50°C (68 and 122° F)
Once optimum temperature has been achieved (within ±0.5°C) the thermometer will change to green.