21
4 Service and maintenance
4.1 Rollers
The tension meter is easy to maintain.
Depending on operating time and load, the instrument should be checked according to the
locally valid regulations and conditions (as described in Chapter 3.6.3). The use of other
test methods than the procedure described in Chapter 3.6.3 may cause deviating measu-
ring results.
For example:
Order of spare rollers
:
Model:
ZEF-100 / ZED-500
(given on rear side of tension meter)
Serial number: 802 - 888888 (given on rear side of tension meter)
Standard rollers
:
Model number ZEF: R580005
Delivery:
1 set (3 pcs.) of spare rollers 900 m/min with mounting tool
Standard rollers
:
Model number ZED: R581004
Delivery:
1 set (3 pcs.) of spare rollers 2000 m/min with mounting tool
or
Model:
ZEF-100-K / ZED-500-K (given on rear side of tension meter)
Serial number: Z 802 - 8888888
(given on rear side of tension meter)
Code K rollers
:
Model number ZEF: R580006
Delivery:
1 set (3 pcs.) of spare rollers 2000 m/min with mounting tool
Code K rollers
:
Model number ZED: R581003
Delivery:
1 set (3 pcs.) of spare rollers 3500 m/min with mounting tool
5 Cleaning
For cleaning the unit do not use any
AGGRESSIVE SOLVENTS
such as trichloroethylene or similar chemicals.
NO WARRANTY OR LIABILITY
shall be accepted for damage resulting from improper cleaning.
The question of finding the right frequency of calibration accuracy verification depends on
several different factors:
Operating time and load of the SCHMIDT tension meter
Tolerance band defined by the customer
Changes to the tolerance band compared to previous calibrations
Therefore, the interval between verifications of calibration must be determined by the user‘s
Quality Assurance Department, based on the user‘s experience.
Assuming normal operating time and load as well as careful handling of the tension meter,
we recommend a verification interval of one year.
6 Verification interval
