Extech RE300 Waterproof ORP Meter RE300 Manual Do Utilizador

ExStik

TM

  RE300-EU_ENG   V2.2   02/08 

4 

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If the unit appears to be locked (display frozen). It is possible that the Data Hold mode 
has been inadvertently accessed by pressing the MODE button. Simply press the 
MODE button again or turn the meter off and restart if the display appears frozen. 

• 

If the meter does latch up and no button presses revive it, remove the batteries and 
restart. 

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Note that if the batteries are removed, any stored readings will be discarded. Factory 
calibration data for all models will be retained, however. 

To preserve Electrode life keep the sponge in the protective cap soaked 
with tap water. When not in use (store vertically).  

DO NOT USE DE-IONIZED WATER. 

1. 

To remove an electrode, unscrew and completely remove the electrode collar (turn 
the collar counter-clockwise to remove). 

2. 

Gently rock the electrode from side to side, pulling it downwards, until it disconnects 
from the meter. 

3. 

To attach an electrode, carefully plug the electrode into the meter socket (note that 
the electrode connector is keyed, ensuring proper connection). 

4. 

Tighten the electrode collar firmly enough to make a good seal (a rubber gasket seals 
the electrode with the meter).