Electronic Fluxmeter EF 14
8 Maintenance
8.1 Maintenance Plan
WHAT? WHEN? WHO?
Checking the instrument and the
accessories for damages
monthly Operator
Calibrating the instrument and
accessories
e.g. once a year or
every two years
Manufacturer or authorized calibration
laboratory
The checks shall be periodically repeated and documented.
8.2 Checking for Damage
The EF 14 and all accessories must be checked once a month for damages. If any of the
components, in particular the instrument housing or a measuring coil are damaged, the device
must only be used if it has been cleared for operation by an authorized person. The damaged
parts shall be replaced or sent to the manufacturer (Magnet-Physik) for repair as soon as
possible.
8.3 Calibration
Only regular calibration ensures accurate and reliable measuring results.
The EF 14 and the accessories should be calibrated using suitable references normally once a
year. We recommend having this calibration carried out by the manufacturer (Magnet-Physik)
or an authorized calibration laboratory.
8.4 Troubleshooting
1. Fault: The instrument cannot be switched on.
Measure: Check if the line power socket used has current and if both ends of the power
cable are properly plugged in.
If this is the case, check the line fuse. Remove the power cable and open the
small cover below the power switch to gain access to the fuse. Check the fuse
using an Ohmmeter or a line tester. Do not rely on a visual test alone.
If the fuse has blown, replace it by a new fuse. The required type and rating is
given on a label next to the fuse holder. Only use the rated type. If an unsuited
fuse is used or the fuse is bypassed, there is an increased risk of fire!
2. Fault: No test result is displayed.
Measure: If no measurement is displayed although the measuring coil is exposed to a
changing magnetic field, first check the settings of AC/DC, Range, Coil and
Var. The AC mode can only measure periodically alternating flux.
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