Maintenance Mode - Teledyne 7500 Series Operating Instructions Manual

6.8 Maintenance mode

This mode is used for check of sensor input values,
display of error log files or setting of passwords.
First, enter a password and then use it from the next
operation. This mode is displayed by selecting the
Maintenance Mode from "6.7 Parameter Setting"
1. Select the Maintenance mode from the Parameter
Setting screen to display the Password Setting screen.
2. Enter the password, and the Maintenance Mode item
selection screen will be displayed. Point the cursor to the
item you want by pressing the or key and press the ENT
key.
3. Next, each Maintenance screen is displayed.
Note: "To Factory Mode" is used for our service
engineers only. Refrain from using this mode.
• Sensor Input Value screen
Description of Sensor Input Value screen
• CO2: CO2 sensor input value
• CO: CO sensor input value
• O2: O2 sensor input value
• Temperature : Temperature sensor input value
• Error Log screen
Description of Error Log screen
Error history
For error number, date and time (days, period) of
occurrence, channel and other details of error, refer to
"8.1 Error message".
Teledyne Analytical Instruments
57 Model 7500 Instruction Manual