![CORNING Ascent 6970 Instruction Manual Download Page 116](http://html1.mh-extra.com/html/corning/ascent-6970/ascent-6970_instruction-manual_2668650116.webp)
112
CORN I NG ASCENT FBR PD SYSTEM
9.0 Preventative Maintenance
Routine care helps keep the Corning® Ascent™ FBR instrument in proper working condition. This section provides maintenance
recommendations and how to replace the gas in-line filters and enclosure filters.
9.1 Recommended List
Table 9-1 lists the recommended maintenance frequency. Table 9-2 is a list of replaceable parts.
Table 9-1.
Preventative maintenance schedule.
Component
Frequency
Mass flow controller
in-line gas filter
Inspect every 3 to 6 months. Replace as needed when fouled. See procedure in Section 9.3.
Enclosure fan filter
Inspect every 3 to 6 months. Replace as needed when fouled.
See procedure in Section 9.4
ASCO pinch valves
Annual cleaning and inspection for wear.
All fuses
Contact Corning for service.
All mass flow
controllers
Annual calibration. See procedure in Section 8.2.3.1.
All transmitters
Annual calibration.
All pumps
Annual calibration. See procedure in Section 8.1. Inspect every 3 months for accumulation
of tubing particulate around pump head, particularly the recirculation pump. Remove
particulate as appropriate.
Table 9-2.
Replaceable parts list.
Description
Manufacturer
Cat. No.
Fan filter replacement, 120 mm square
Hammond
PFF10000
In-line gas filter (one per mass flow controller)
Cole Parmer
EW-02908-50
9.2 Routine Screen Cleaning
The HMI screen shall be routinely wiped clean. See Table 9-3 for instructions.
WARNING:
Do not use paint thinner, organic solvents, or a strong acid compound to clean the screen.
Table 9-3.
Clean screen instructions.
Cleaning Option
Instruction
Light clean
Use a soft dry cloth or a soft damp cloth soaked in only water and wrung tightly to wipe
down the screen.
Deep clean
Bussmann