Knauer Smartline 2300 Benutzerhandbuch Seite 17

16
FLUSH Menu
ANALOG OUT Menu
GLP Menu
With coarse the values are doubled or divided by 2, with fine you can
change the digits in steps of 4 at the third decimal position.
All KNAUER detectors are adjusted in-factory to a standardized
sensitivity by comparing measurements with calibrating solutions at
T=20° C. The selection of another value for calibration applies to all
measurement outputs, and erases/overwrites the previous entry.
Changing the calibration constant c does not affect the signal-to
noise ratio !
By selecting this factor you can achieve any calibration for the RI
detector. Thus, an absolute calibration by means of a solution with known
concentration at a certain temperature can also be performed.
FLUSH
♦ time: 030 s
In this menu you can define the period of time for flushing the reference
cell. The available range is 1...900 s. Place the cursor on the time field
using the ► or ◄ key and select the desired time with the ▲ or key. By
pressing the ▼ key you can reach the function no valve beyond the
value 0, which is used to deactivate the valve circuit.
Flushing periods of 10...20 s are recommended for flow rates of approx.
1 ml/min. With lower flow rates the use of longer flushing periods is
advisable.
While flushing the reference cell the flow rate should not exceed
3 ml/min for the Smartline 2300 or 5 ml/min for the Smartline 2400.
Otherwise the flush solenoid valve and/or the reference cell may be
destroyed.
ANALOG OUT
♦ full scale: 1e-3 RIU
The ANALOG OUT menu is used to set the scaling factor of the analog
output signals. The maximum output signal is always 1 V. Generally the
maximum output signal is 1 V. In accordance with your current conditions
you can determine how many RIU correspond to this maximum signal or
full scale deflection. The values of 1e-5, 2e-5, 5e-5, 1e-4, 2e-4, 5e-4, 1e-
3, 2e-3, 5e-3, 1e-2, 2e-2, 5e-2, 1e-1, 2e-1, 5e-1 or 1e-0 RIU
(corresponding to 0.00001, 0.00002, 0.00005, 0.0001, 0.0002, 0.0005,
0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.2, 0.5 or 1 RIU respectively)
are selectable.
GLP S/N:00012345
♦ 00000 . 3h
In the GLP menu the instrument's serial number and operating time are
indicated.
Operating the RI Detector 2300/2400