CTN
L
ABORATÓRIO DE
E
NSAIOS
T
ECNOLÓGICOS EM
Á
REAS
L
IMPAS
E
STRADA
N
ACIONAL
10,
2695-066
B
OBADELA
Edição: 01
Revisão: 00
Data: 2014
3
HM
voltmeter. If voltage is not /-2% of the socket voltage, replace the
power cord.
Check the fuse of the power cord.
CO2 level is below or above CO2 set-point
Possible Cause
Corrective Actions
Unit is not connected to the pressure
regulated CO₂ source.
Check gas hose connection at the rear of unit
to the CO2 source as defined in the
installation section of the manual.
CO2 inlet pressure not regulated correctly
The CO2 inlet gas pressure should be
regulated to approximate 15 psig.
CO2 gas tank is empty
Replace CO2 gas tank.
In-line filter is dirty / saturated
Replace in-line filter.
Gas hose is leaking
If hose is leaking, check the pressure regulator
to ensure CO2 inlet pressure is not more than
15 psig. Check for leakage at hose connection.
Gas hose is dirty or obstructed
Check physically for dirt accumulation or
obstruction, clean or replace it.
CO2 set-point was recently lowered or raised
Unit is still not stabilized after the set-point
was changed
Check CO₂ set-point. Allow 2 hours for the
unit to stabilize after adjustment of new set-
point.
If the CO2 set point is lowered, the outer and
inner doors must be opened.
