ENMET OX-2000 - Manual (Page 12)

ENMET Corporation TX2000 / OX2000
8
4.0 Maintenance
The operations and adjustments described in this section must be performed by authorized personnel, as they affect
detection safety.
Important: Being a safety instrument, it is necessary to calibrate:
• TX2000 at least twice a year.
• OX2000 when ever it fails to read 20.9 when turned on ( ± 0.02)
4.1 Access Maintenance Menus
Turn the instrument on. After the instrument stabilizes press and hold for 5 seconds, the BACKLIGHT and
ENTER switches, at the same time. See figure 4 entrance to maintenance menu.
Press at the same time for 5 seconds:
& (During this time, measurement is displaying)
5 seconds later, the maintenance pictogram appears
• Release the switches
• At this time, the operator has 5 seconds to
enter the maintenance menus or the
instrument returns to operation mode.
· Then proceed with following
Press BACKLIGHT switch to toggle
between (PrG) and (CAL)
to continue See Sections:
4.2 for Programming
4.3 for Calibration
Figure 4: Entrance to Maintenance Menu Flow Chart
N O
Do you want to reach
the menus?
Y ES
ƒ No action on switches
ƒ Return to normal operation,
5 seconds later
ƒ Press ALARM switch 3 times
ƒ Maintenance pictogram is flashing
ƒ You have access to:
Calibration (CAL) and
Programming (PrG) menus.