jenway 7315 Operating Manual Download Page 63

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11.3

USING THE ACCESSORIES

11.3.1

Automatic 8 cell turret

When the automatic 8 cell turret is in use the

8 cell turret

icon is displayed in the bottom right hand corner of the
screen. The current cell position is displayed adjacent to
the 8 cell turret icon. The 0 position should always be used
for the zero calibration sample.

To perform measurements using the automatic 8 cell turret, insert the cuvettes containing the samples
into turret positions 1 to 7. Insert the cuvette containing the blank solution into turret position 0. Enter
the required measurement mode and set up the required measurement parameters. Press the key below
the

calibrate to zero

icon. The instrument will automatically move the turret around to position zero to

perform the measurement. Once the calibration is complete the

measure sample

icon will appear and

the turret will return to its original starting position.

Press the key below the

8 cell turret

icon to highlight

the icon and the two arrow icons above. Press the keys
adjacent to the

arrow

icons to increase or decrease

the current cell position of the turret, until the required
sample position has been selected. Press the key below
the

measure sample

icon. The instrument will perform a

reading and display the result on the screen.

To measure the next sample select the next turret position and press the key below the

measure sample

icon. Repeat this process until all the samples have been measured. To adjust the wavelength press the
key below the

8 cell turret

icon and use the

arrow

icons to adjust the wavelength.

11.3.1.1 Automatic 8 cell turret - supporting creation of a standard curve in quantitation

The 8 cell turret can be used to support creation of a new standard curve in the quantitation measurement
mode. Refer to section 8.2.3.1 for more details.

When the standard measurement screen is open the 8

cell turret icon will be displayed in the bottom left hand

corner of the screen. The current cell position is displayed

adjacent to the 8 cell turret icon. The 0 position should

always be used for the zero calibration sample.

To measure the standards using the automatic 8 cell

turret, insert the cuvettes containing the standards into

turret, insert the cuvettes containing the standards into turret positions 1 to 6 (depending on how many
standards needed). Insert the cuvette containing the blank solution into turret position 0. Press the key
adjacent to the

tick

icon to perform an initial calibration to zero absorbance.

Use the keys adjacent to the

arrow

icons to increase the turret position, until the required standard

position has been selected. Press the key adjacent to the

tick

icon to measure the standard. The standard

concentration and photometric value will then be displayed. The standard can be re-measured by pressing
the key adjacent to the

back

icon.

To measure the next standard select the next turret position and press the key adjacent to