20
MODEL SOLU COMP II
SECTION 4.0
DISPLAY AND OPERATION
1.
If a security code has been programmed, pressing MENU causes the
security screen to appear.
2.
Enter the three-digit security code.
3.
If the entry is correct, the main menu screen appears. If the entry is incor-
rect, the
Invalid Code
screen appears. The
Enter Security Code
screen
reappears after 2 seconds.
Enter Security
Code
0
00
00
0
Invalid Code
Calibrate
H
Ho
ol
ld
d
Program
Display
Hold Outputs and
Alarms?
Y
Ye
es
s
No
4.4 SECURITY
4.4.1 How the Security Code Works
Use the security code to prevent accidental or unwanted changes to program settings, displays, and calibration.
4.4.2 Bypassing the Security Code
Enter 555. The main menu will open.
4.4.3 Setting a Security Code
See Section 5.6.
4.5 USING HOLD
4.5.1 Purpose
The analyzer output is always proportional to the measured ozone. To prevent unwanted alarms and improper
operation of control systems or dosing pumps, place the analyzer in hold before removing the sensor for calibra-
tion and maintenance. Be sure to remove the analyzer from hold once calibra-
tion is complete. During hold, both outputs remain at the last value.
Once in
hold, the analyzer remains there indefinitely.
While in hold, the screen
shown to the left appears periodically.
H
Ho
ol
ld
d
4.5.2 Using the Hold Function
To choose a menu item, move the cursor to the item and press ENTER.
To store a number or setting, press ENTER.
1.
Press MENU. The main menu screen appears. Choose
Hold
.
2.
The
Hold Outputs and Alarms ?
screen appears. Choose
Yes
to place
the analyzer in hold. Choose
No
to take the analyzer out of hold.
3.
The main display screen will appear.
