Analytik Jena multi EA 4000 User Manual

Operation
multi EA 4000 Version 01.16 81
WARNING FOR HANDLING PHOSPHORIC ACID!
The reactor container and hoses of the acid supply contain phosphoric acid! Phosphoric acid
is irritating for eyes, skin and the
mucous membrane!
Meter slowly with the dispenser to prevent excess pressure!
Always wear protective gloves and goggles when handling concentrated phosphoric acid!
Rinse the affected skin with water immediately.
CAUTION! OPERATION O
F THE MAGNETIC STIRRER!
 Do not operate the heating plate unsupervised!
 Avoid overheating the acid bath! Limit the maximum temperature to 80 °C.
 Place the glass flask in the center of the heating plate to prevent the magnet from
knocking against the flask wall.
 Do not set the stirring speed of the magnet too high.
1. Fill the acid bottle with 40 – 50% phosphoric acid and place it into the plastic insert in
the upper housing.
2. Screw the dispenser onto the bottle. Connect the acid supply hose to the valve and the
TIC head.
3. Switch on the basic device multi EA 4000, the C/S module and the manual TIC solids
module from the respective main switch.

The status lamps at the device front panels illuminate.
4. Switch on the heating plate.
Adjust the temperature with the left-hand rotary switch of the heating plate. A tempera-
ture setting of approx. 80 °C is recommended. If the temperature selection is too high,
too much water evaporates, at too low a temperature the reaction takes longer.
5. Start the multiWin program.
6. Change between the different analyzer modules, first activating the sensors:
− Select the menu item D
EVICE / DEVICE - EDIT.
− Activate the E
LEMENTS to be analyzed.
− In the list C
OMBUSTION TUBE click on the option CERAMIC TUBE (CS).
− As S
TATES enable the option SOLID.
− Activate the TIC
MANUAL option.
7. Then initialize the system by clicking on [I
NITIALIZE ANALYZER].
8. Load a method (menu item M
ETHOD / METHOD - ACTIVATE) or create a new method
(menu item M
ETHOD / METHOD- NEW) with the TIC parameter (detect only TIC content).
Note:
In the method on the tab P
ROCESS set the furnace temperature to a value of 0°C. The
combustion furnace is then not monitored and the analyzer released for the measure-
ment.
9. At the valve set the oxygen flow to 16 l/h.
10. Weigh the finely ground sample into the Erlenmeyer flask.
Note: The sample must not stick to the flask wall during transfer. Only the floor of the
Erlenmeyer flask is covered with acid. Sample sticking to the walls is lost for analysis.
11. Carefully place the magnetic stirring rod into the Erlenmeyer flask and place the flask
into the center of the heating plate.

Analytik Jena multi EA 4000 Specifications

General

Brand	Analytik Jena
Model	multi EA 4000
Category	Measuring Instruments
Language	English