Operation
multi EA 4000 Version 01.16 67
The calculated operating point of the combination electrode is displayed under the menu
item S
YSTEM / COMPONENT TEST in the tab CL-AMP.
IMPORTANT
To protect the combination electrode against unnecessary wear, note the following:
Always fill fresh electrolyte into the measuring cell before the end point routine.
Never perform the end point routine several times consecutively.
7.4.5 Performing the Cl measurement
1. Switch on the basic device multi EA 4000, the Cl module, C/S module (only for multi EA
4000 C/S Cl) and, where applicable, the FPG 48 from the main switch.
The status lamps at the device front panels illuminate.
2. Start the multiWin program.
3. Change between the different analyzer modules, first activating the sensors:
− Select the menu item D
EVICE / DEVICE EDIT.
− Activate the chlorine as E
LEMENT to be analyzed.
− If both carbon/sulfur and chlorine have been activated, click on Q
UARTZ TUBE (CL)
in the list C
OMBUSTION TUBE.
− As S
TATES enable the option SOLID.
4. Then initialize the system by clicking on [I
NITIALIZE ANALYZER].
5. Load a method (menu item M
ETHOD / METHOD - ACTIVATE) or create a new method
(menu item M
ETHOD / METHOD- NEW).
You can select the following parameters for the Cl measurements:
− Cl_AMP (detecting chlorine content in solids)
− Cl_direct_AMP (check the measuring cell by pipetting a liquid standard directly into
the measuring cell)
6. Adjust the gas flows:
Cl measurements without gas splitting
− For the non-splitting operation S
PLIT 100 % must be selected in the method in the
tab P
ROCESS.
− The following gas flows must be set for that purpose:
Gas flows for measurements without gas splitting
approx. 600 ml/min 300- 400 ml/min 300- 400 ml/min
− The following must be noted when adjusting the gas flows:
The intake flow must be approx. 200 ml/min greater than the oxygen flow.
To guarantee the effect of the gas airlock the sum of argon and oxygen flow must
be at least 200 ml/min greater than the oxygen flow.
When prompted the user must reduce the oxygen flow manually at the "pump" flow
meter of the basic device.