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1.2 To be considered before initial operation 

Check that the device has not been damaged in transit. 

Push cannula on tightly. 

Do not carry the device at the outer housing (2). 

Push ejection cannula (6) on tightly and slide the cannula holder (7) 

into the formed grooves. 

When screwing on the bottle do not grip the device at its outer 

housing (2). 

Do not pump before the device has been assembled completely and 

a collecting vessel has been placed underneath. 

 
1.3 Warranty 

 

witeg warrantees the 

Labmax 

you have received is free of defects in material 

and workmanship for 12 months from the date of purchase. witeg´s 
responsibility is limited to the repair or replacement of the 

Labmax

This warranty is valid only if the 

Labmax 

is used in the manner described in this 

manual and for the purpose for which it is designed. 
witeg is not responsible for consequential damages resulting from the misuse of 
this equipment. 
 

1.4 Operating limitations 

 

 

Labmax “OE” 

Labmax “OE S” 

Labmax “OE HF” 

Use for 

nearly all liquids 

PTFE swelling 

solvents 

hydrofluoric acid 

PTFE swelling 

Solvents, 

hydrofluoric acid 

hydrofluoric acid 

PTFE swelling 

solvents 

solutions which contains any form of solids 

Don´t use for 

solutions of substances catalysed by platinum-iridium alloys 

 
The temperature of the 

Labmax “OE” 

and reagent should not exceed 40 °C 

(104 °F). 
 

 

 

3

21 

20 

2 General product description 

The 

Labmax “OE” 

is witeg´s economy dispenser and consists of high precision 

components and extreme solid materials “made in Germany”. This ensures 
highest reproducibility during the complete long life cycle of the device.  
The 

Labmax “OE” 

is fully autoclavable at 121 °C and can be completely 

disassembled for cleaning. The zero point is part of the construction and 
automatically calibrated after assembling. 
Each device is single tested and delivered with conformity certificate. 
The air-purging is managed through the ejection cannula and therefore no air 
bubbles get into the bottle and a contamination of the bottles content with 
previous used chemicals is not possible.  
The

 Labmax “OE”

 has the witeg´s typical Safety-Lock for your safety at work. 

Turn the cannula 180 ° to drain it and avoid further uncontrolled flow of liquid. 

 
 

3 Preparations 

 

First push the ejection cannula into the 
valve and then slide the cannula holder 
from above into the groove. Make sure it 
fits tightly! 
 
 

 
 
  
Push the return tube (21) into the big socket and the suction 
tube (20) into the small socket.  
Control the length of the suction tube and make sure it fits 
tightly!  
Now you can screw the 

Labmax “OE” 

onto the bottle.  

((20) and (21) are one tube at the 

Labmax “OE“ 250 ml

Summary of Contents for LABMAX OE

Page 1: ...GmbH Am Bildacker 16 D 97866 Wertheim Main Phone 49 0 9342 9301 0 Fax 49 0 9342 9301 77 Email info witeg de www witeg de Version 06042009 Operating Manual for Dispenser max OE OE S OE HF Please study...

Page 2: ...ling chemicals e g protective clothing protective goggles Use the Labmax only regarding to the resistance of materials and for the purpose for which is intended Always check the device for leaks fixed...

Page 3: ...f substances catalysed by platinum iridium alloys The temperature of the Labmax OE and reagent should not exceed 40 C 104 F 3 21 20 2 General product description The Labmax OE is witeg s economy dispe...

Page 4: ...ustment screw 4 3 Dispensing Avoid personal injury from chemicals To protect your self wear eye protection and use appropriate safety equipment and clothing Please follow all safety instructions and o...

Page 5: ...assemble the Labmax until you can surely clean it from all reagents Sometimes it could last out to rinse the device The cleaning can be performed with distilled water or alcohol The Labmax should be r...

Page 6: ...the closing cap 13 This point is not applicable for Labmax 250 ml 3 Place the valve ball 10 and the valve star 9 into the suction valve Check that the spikes of the valve star 9 point upwards For Labm...

Page 7: ...cap 13 2 5 100 ml 5 370 380 11 O Ring a 14 a 2 5 100 ml 5 370 381 O Ring b 14 b 2 5 10 ml 5 370 387 Cylinder set 16 2 5 ml 5 370 255 OE includes 4 5 18 5 ml 5 370 256 OE 10 ml 5 370 257 OE 25 ml 5 370...

Page 8: ...ass tube with plastic coating for calcium chloride ensures dry atmosphere in storage vessel Article No 5 377 310 3 Filter against dust and bacteria in storage vessel pore size 2 m 4 5 m Article No 8 2...

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