36
5 Maintenance
5
Maintenance
In accordance with the legal regulations, device maintenance
comprises the following elements:
●
Device inspection including test of indication accuracy
●
Adjustment
●
Servicing
All inspections must be documented. The documentation must
be retained for at least one year.
5.1
Device inspection
5.1.1
General information on the device inspection
5.1.1.1 Scope
The device inspection includes the following tests:
●
Analysis of the general status (see Section 5.1.3 on page 41
)
●
Test of the indication accuracy with supply of fresh air (see
●
Test of the indication accuracy with supply of test gas (see
5.1.1.2 Frequency
The frequency of the device inspection depends on the applica-
tion.
Application
When to test
Inspection above ground
weekly
Measuring in bar holes
every 3 months
House
weekly
Gas measuring
every 3 months
This symbol appears in the display when a device
inspection is due for the selected application.
