Installation, Operation and Service Manual
LKP Series
© 2016 DynAmp, LLC
Page 30
041738 I
I.) Clean the following items:
1.) Cables and external surfaces of Measuring Head and Metering Unit:
Clean as necessary; remove any oil or grease with a mild detergent or cleaner
solvent. Do not use strong chemical solvents as they may damage the cables or
erase the silk-screening from the Metering Unit.
2.) Metering Unit interior (should only be performed after disconnecting power to the
Metering Unit):
Dust and dirt can be removed by gently vacuum cleaning the unit. Be careful not
damage the internal shunt. Solvents should never be used on any of the PC
boards. The boards are coated with a protective conformal coating that can be
stripped away by certain solvents.
J.) Check the electrolytic filter capacitors for seals that have been popped (degassed) or
are leaking electrolytic fluid. Replace if necessary.
K.) If the unit is equipped with a cooling fan and filter, then the filter should be cleaned or
replaced according to the manufacturer instructions.
CAUTION
To avoid the risk of shock and electrocution, always disconnect the AC power and
head cables from the head before performing any cleaning or service operation on the
Metering Unit.
Disconnect power to the system before servicing or replacing fuses.
6.3 CALIBRATION INTERVALS
DynAmp does not specify required intervals of calibration for its products.
The end user of the product is responsible for identifying the appropriate interval between
calibrations. The intervals should be determined based on the following factors:
•
Requirements of a Quality Management System
•
Accuracy and permissible limits of errors
•
Purpose and usage
•
Experience with similar products
•
Manufacturer's recommendations
•
Stability of the product
•
Past history
•
Other characteristics of the product
Reference: "ISO/IEC 17025:2005, General requirements for the competence of testing
and calibration laboratories" and Laboratory Accreditation Bureau "Guidance for
Documenting and Implementing ISO/IEC 17025:2005 and Laboratory Guidance."
As a guideline, DynAmp recommends a 24-month interval of calibration for all permanently
installed products and a 12-month interval of calibration for all products used in portable
applications.
