TAC-O
2
_
H
Pg. 18
TEXAS ANALYTICAL CONTROLS
4418 Bluebonnet Drive | Stafford, TX 77477 | (281) 240-4160 |
www.tac-controls.com
4 Controls and Their Operation
To Change Password Protection Settings
1 From the menu screen, press the USER PASSWORD button.
2 Press PASSWORD ENABLED or DISABLED to set. The Password is set to 0.
If you get locked out, consult the TAC support team for assistance.
4.10 Password Protection Feature
A new feature has been added to our analyzers. Program Version: 4.22 allows you to password protect
various settings of your analyzer. For example to start calibration: if the password protect feature has
been enabled; the operator will be required to enter the 4 digit code to gain access to this screen.
1
2
3
5.1 Occasional External Inspection
To be sure the analyzer is operating properly, conduct the following two (external) visual checks. Do not
make internal adjustments without consulting a technician or the troubleshooting guide. Do not adjust
any operating parameters through the operator interface. Do not adjust the needle valves unless you
carefully follow the prescribed calibration procedures.
Sample Gas Pressure
• Read the sample-gas pressure at the sample-pressure gauge.
• As mentioned in the installation section, set this pressure to maintain the correct flow
rate as determined during installation.
• Adjust the sample pressure with the sample-pressure regulator on the sample line.
(Adjust any pressure during zero-flow conditions.)
Vents Not Blocked
• The vent lines terminate at the bottom of the analyzer housing. Check the vent openings
for obstructions and clear them.
• The instrument’s accuracy depends on keeping vent lines perfectly clear, and bug screens
on the vents help with this. You may purchase additional bug screens from TAC.
5 Maintenance
0
0