
Installation & User Manual - Sampling Systems
Version 140618 UK
Page 21
Revision Vacuum samplers
When the capacity of the air pump decreases, the filters inside the pump
need to be cleaned. Remove the pump from the electronic compartment.
Loosen the four M4 bolts from the pump head and remove the 2 filters
(D) from the pump head. Clean the filters with tap water and let them dry.
Be aware!
Reassemble the pump exactly as seen in fig 4.6a.
Replacing pincher
•
Remove power supply
•
Loosen the connector bolt (E) from the pincher connector (D) by
hand. Remove the white bolt (F) which holds the silicon
hose and loosen the nut (B) from the enclosure (A).
•
Remove the pincher and replace the new pincher.
•
Place the connector seal (C) and connector (D) and fasten the
connector bolt (E) (
Be aware! Seal air tight
).
•
Place de white bolt back in its position.
•
Connect the power supply, check if the pincher works properly.
4.7
Trouble shooting
Problem
Diagnose
Solution
Sampler doesn’t take any
samples
Check sampling settings
§3.5
End of suction hose not
emerged
See installation instructions
(
§4.3)
PP glass holder loose
Fasten glass holder
Coupling suction hose leaks
air
Fasten / replace coupling
suction hose / replace
O-ring
Air pump not enough power Check pump filters and
rotor blocks(
§4.6)
Pincher doesn’t fully pinch
the silicon hose
Adjust the pot meter on the
power supply to 24 ± 0,10
VDC
To high pulse frequency
Max. pulse frequency:
< 1 pulse / second
Air pump rotates but doesn’t
blow air
Rotor block inside pump is
broken / worn down
Replace rotor block
(
§4.6)
Sampler skips suction
Polluted Pins inside sample
chamber
Clean all wetted parts
inside the sample chamber
Low sample volume
Sample volume to low
adjusted
Lengthen silicon hose
(
§4.5)
Medium enters sample
chamber to quickly
Contact your supplier
Fig. 4.6a
Fig. 4.6b
F
A
B
C
D
E
Содержание omy
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