Maintenance And Inspection; Maintenance; Cleaning; Inspection - Endress+Hauser FQG61 Technical Information & Operating Instructions

Radiation Source Container FQG61/FQG62

Maintenance

Cleaning

"

Inspection

"
"
"
Endress+Hauser

Maintenance and Inspection

In designated use, operated under the specified ambient and operating conditions, no maintenance of the
device is required.
Clean the device in periodical intervals. When doing so, observe the following:
• Clean the device from substances which may have impact on safety functions.
• Keep labels in legible condition.
• Clean the adhesive labels and - for the versions with pneumatic actuator - the terminal box only wet with
water.
Caution!
When cleaning the device, all instructions concerning radiation protection (→ ä 4) have to be observed.
Within the framework of routine inspections of the plant the following checks are recommended:
• visual check regarding corrosion of housing, weld seams, outer parts of source insert and lock(s)
• check of the movability of the source holder (on/off function)
• visual check of the readability of the labels and the condition of the warning symbols
• check of the stability and position of the source holder
Caution!
If there is any doubt about correct function or proper condition of the device, immediately contact the
responsible radiation safety officer for advice.
Caution!
Non-routine repair or maintenance must be performed by the gauge manufacturer or distributor or - in the
USA - by a person specially authorized by NRC or an Agreement State.
Measures in case of corrosion
If considerable corrosion is visible at the housing, measure the radiation level around the device. If values occur
exceeding the normal operation level, cordon off the area and contact the responsible radiation safety officer
for instructions immediately.
Caution!
In every case corroded devices should be exchanged as soon as possible.
Source containers with corroded interlocks or source holder require immediate exchange.
29