Pentair HAFFMANS GMT, Instruction Manual, Page: 19 / 38

HAFFMANS GMT
GMT Page 19 of 37
7. MAINTENANCE AND CLEANING
7.1 Daily
The CO
2
Gehaltemeter must be thoroughly rinsed with cold water after all the measurements
have been taken.
Method:
Attention!
The temperature in the room must not fall below 0
o
C.
1. Connect the supply hose to the water tap,
2. Place the drain hose in a washbasin,
3. Carefully turn the water tap on,
4. Open the throttle valve (pos. 99),
5. Move the throttle valve and thoroughly rinse the instrument with water,
6. Move the handle (pos. 22) up and down a couple of times,
7. Close the handle,
8. Close the throttle valve (the CO
2
Gehaltemeter is now filled with water),
9. Turn the tap off,
10. Place the CO
2
Gehaltemeter in a cool room.
7.2 Weekly
Warning!
Never use a fluorine based cleaning product.
Attention!
Use a diluted solution (maximum of 0.5% chlorine). More
concentrated solutions may attack the stainless steel. Do not leave
the instrument filled with cleaner for longer than 2 hours.
The CO
2
Gehaltemeter must be cleaned once a week. Thoroughly rinse the instrument with cold
water. If there is still contamination present in the instrument, it may be partially filled with a
cleaning product. For example, use a 1 in 10 parts diluted solution of household chlorine.
Thoroughly clean the instrument with water to completely remove any residue of the cleaning
product. Move the handle up and down a couple of times.