89
charge. The water vapor
becomes an electrolytic
solution which becomes
ionized when it enters the
detector.
The 2020PRO
Plus is not
properly calibrated.
Ensure that the calibration gas
is the correct concentration
and calibrate the 2020PRO
Plus
as described on page 60.
Memory Slots have not
been properly
programmed.
Program the memory slots.
See page 57.
Detector has been short-
circuited by foreign
material.
Contact Photovac
Date and time
setting are not
retained
The battery pack was
removed before the
2020PRO
Plus was turned
off.
Replace the battery pack and
reset the time and date. See
page 39.
The 2020PRO
Plus has not
been used for 3 months or
more.
Connect the 2020PROPlus 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
2020PRO
Plus properly.
Ensure the battery pack
connector is securely attached
to the 2020PROPlus.
Sample flow is
less than 300
ml/min/
Inlet filter is plugged. Replace the inlet filter. See
page 82.
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 Photovac.
Liquid has
been aspirated.
The 2020PRO
Plus has
been exposed to a solvent
that can pass through the
inlet filter.
Contact Photovac.
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