INFICON 2020ComboPRO Portable Photoionization Detector - Manual (Page 101)

94 ISP-074-575-P1D 94
Erroneous
high readings Sampling environment is
very humid. Water vapor may contain
mineral salts which carry a
charge. The water vapor
becomes an electrolytic
solution which becomes
ionized when it enters the
detector.
The 2020ComboPRO is
not properly calibrated. Ensure that the calibration gas
is the correct concentration
and calibrate the
2020ComboPRO as described
on page 63.
Memory Slots have not
been properly
programmed. Program the memory slots.
See page 61.
Detector has been short-
circuited by foreign
material. Contact INFICON
Date and time
setting are not
retained The battery pack was
removed before the
2020ComboPRO was
turned off. Replace the battery pack and
reset the time and date. See
page 39.
The 2020ComboPRO has
not been used for 3
months or more. Connect the 2020ComboPRO
to the battery charger and
recharge the battery. Reset the
date and time.
Display is
blank Battery pack is critically
low. Recharge or replace the battery
pack.
The battery pack is not
connected to the
2020ComboPRO properly. Ensure the battery pack
connector is securely attached
to the 2020ComboPRO.
Sample flow is
less than 300
ml/min Inlet filter is plugged. Replace the inlet filter. See
page 87.
Inlet filter is incorrectly
installed. Ensure the inlet filter is
installed correctly.
See page 83.
Sample outlet is blocked. Clear blockage from sample
outlet.
Pump has been damaged. Contact INFICON.