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Notes: Control and Cal. M & T E
Names: »0634A «
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…02… SD/STD/016
…02… EV/810219…02……02…#
CONTROL AND CALIBRATION OF MEASURING
AND TEST EQUIPMENT…02……02…GENERAL
T̲A̲B̲L̲E̲ ̲O̲F̲ ̲C̲O̲N̲T̲E̲N̲T̲S̲
…02…1 SCOPE ........................................ 4
…02……02…1.1 GENERAL .................................. 4
…02……02…1.2 APPLICABILITY ............................ 4
…02……02…1.3 APPLICABLE DOCUMENTS ..................... 4
…02…2 REQUIREMENTS ................................. 5
…02…3 INCOMING INSPECTION .......................... 5
…02…4 REGISTRATION ................................. 6
…02……02…4.1 GENERAL .................................. 6
…02……02……02…4.1.1 Forms ................................ 6
…02……02……02…4.1.2 Files ................................ 6
…02……02…4.2 EQUIPMENT REGISTER ....................... 6
…02……02…4.3 EQUIPMENT LOG SHEET ...................... 7
…02……02…4.4 CALIBRATION SPECIFICAION ................. 7
…02……02…4.5 CALIBRATION CALENDAR ..................... 7
…02…5 CALIBRATION LABELS ........................... 8
…02……02…5.1 EXTERNAL CALIBRATION ..................... 8
…02……02…5.2 INTERNAL CALIBRATION ..................... 8
…02…6 IDENTIFICATION MARKING LABELS ................ 9
…02…7 CONTROL ...................................... 10
…02……02…7.1 GENERAL .................................. 10
…02……02…7.2 CALIBRATION CALENDAR AND LABEL ........... 10
…02……02…7.3 CALIBRATION INTERVAL ..................... 10
…02……02…7.4 EXEMPTS FROM CALIBRATION INTERVAL ........ 10
…02……02…7.5 HAZARDS .................................. 11
…02……02……02…7.5.1 Standards and Traceability ........... 11
…02……02……02…7.5.2 Environmental Conditions ............. 11
…02……02…8.1 CALIBRATION PROCEDURES ................... 12
…02……02……02…8.1.1 General .............................. 12
…02……02……02…8.1.2 Content .............................. 12
…02…9 EQUIPMENT SAFETY ............................. 13
…02……02…9.1 STORAGE AND HANDLING ..................... 13
…02……02…9.2 TRANSPORTATION AND SHIPMENT .............. 13
1̲ ̲ ̲S̲C̲O̲P̲E̲
1.1 G̲E̲N̲E̲R̲A̲L̲
This document describes the rules, procedures and quidelines
used at CRA System Division (SD) in order to maintain
performance, accuracy, status, events, and nonconformances
of registered measuring/test equipment under satisfactory
control.
SD calibration control system is open to review by
customers QAR.
1.2 A̲P̲P̲L̲I̲C̲A̲B̲I̲L̲I̲T̲Y̲
The rules outlined herein is valid to the specified
extent for:
- Electronic instruments
- Mechanical measuring equipment and gauges
- Test equipment.
1.3 A̲P̲P̲L̲I̲C̲A̲B̲L̲E̲ ̲D̲O̲C̲U̲M̲E̲N̲T̲S̲
The following documents are applicable to the extent
specified herein:
AQAP-6 NATO Calibration System Requirements for
Industry.
MIL-C-45208 Calibration System Requirements
ESRO QRA 20 Calibration and Maintenance of Equipment
2̲ ̲ ̲R̲E̲Q̲U̲I̲R̲E̲M̲E̲N̲T̲S̲
2.1 The SD calibration control system shall provide for:
- maintaining of required equipment performance
- detection, registration and corrective actions
in case of nonconformances and hazards.
3̲ ̲ ̲I̲N̲C̲O̲M̲I̲N̲G̲ ̲I̲N̲S̲P̲E̲C̲T̲I̲O̲N̲
3.1 All new, modified or repaired instruments or measuring
equipment shall undergo a performance-check to verify
important specification characteristics, unless satisfactory
supplier verification is evident.
3.2 Mechanical measuring gauges shall at least be inspected
visually and functionally.
3.3 New equipment after incoming acceptance shall be identified
by a department reg. number (SD NO.) and entered to
the appropriate register.
4̲ ̲ ̲R̲E̲G̲I̲S̲T̲R̲A̲T̲I̲O̲N̲
4.1 G̲E̲N̲E̲R̲A̲L̲
Registration of equipment, belonging manuals, calibration
and important events are accomplished by use of the
following forms, labels and files.
4.1.1 F̲o̲r̲m̲s̲
- Equipment Register (fig. 4:1)
- Equipment Log Sheet (fig. 4:2)
- Calibration Specification (fig. 4:3)
- Calibration Calendar
4.1.2 F̲i̲l̲e̲s̲
- Equipment documents (Library or steel sheet cabinet)
- Register, logs and calibration specs.
The data to be filled in is given by the heading of
the forms.
4.2 E̲Q̲U̲I̲P̲M̲E̲N̲T̲ ̲R̲E̲G̲I̲S̲T̲E̲R̲ (FIG. 4:1)
The Equipment Register shall record:
- SD NO.
- Instrument designation
- Type No.
- Manufacture
- Serial No.
- Calibration interval
4.3 E̲Q̲U̲I̲P̲M̲E̲N̲T̲ ̲L̲O̲G̲ ̲S̲H̲E̲E̲T̲ (FIG. 4:2)
The Equipment Log Sheet shall record:
- SD NO.
- Incoming acceptance
- Accomplished calibrations
- Observed irregularities
- Hazards
- Loan
- Transportation and shipments.
- Next calibration date. (To be transferred to the
calibration calendar.
Furthermore, it shall collect remarks as well as signature
of the writer. It is the users duty to report events
to the instrument engineer or QA.
4.4 C̲A̲L̲I̲B̲R̲A̲T̲I̲O̲N̲ ̲S̲P̲E̲C̲I̲F̲I̲C̲A̲T̲I̲O̲N̲ (FIG. 4:3)
The Calibration Specification for every registered
measuring equipment has to contain:
- SD NO.
- Calibration interval (valid)
- Calibration laboratory and reference to standards
- Calibration environments
- Performance specification or reference
- Calibration procedure/reference.
Unknown or not applicable information shall be stated
as: TBS (to be specified) or N/A.
4.5 C̲A̲L̲I̲B̲R̲A̲T̲I̲O̲N̲ ̲C̲A̲L̲E̲N̲D̲A̲R̲
The Calibration Calendar attached to the wall or notice-board
at the equipment engineer, shall together with the
calibration lable be the means of calibration time
control.
5̲ ̲ ̲C̲A̲L̲I̲B̲R̲A̲T̲I̲O̲N̲ ̲L̲A̲B̲E̲L̲S̲
5.1 E̲X̲T̲E̲R̲N̲A̲L̲ ̲C̲A̲L̲I̲B̲R̲A̲T̲I̲O̲N̲
Equipment calibrated by external calibration facilities
must, when calibration is finished, be provided with
a label showing the following:
a) Calibration date: The date on which the calibration
is finished
b) Next calibration: The planned date for the
next calibration
c) Signature: The signature of responsible
instrument engineer.
5.2 I̲N̲T̲E̲R̲N̲A̲L̲ ̲C̲A̲L̲I̲B̲R̲A̲T̲I̲O̲N̲
Equipment calibrated or inspected by internal facilities
must, when calibration is finished, be provided with
a QC lable showing calibration date, next calibration
and signature/stamp.
6̲ ̲ ̲I̲D̲E̲N̲T̲I̲F̲I̲C̲A̲T̲I̲O̲N̲ ̲M̲A̲R̲K̲I̲N̲G̲ ̲L̲A̲B̲E̲L̲S̲
7̲ ̲ ̲C̲O̲N̲T̲R̲O̲L̲
7.1 G̲E̲N̲E̲R̲A̲L̲
The instrument engineer is keeping the instrument volume,
file and calibration calendar updated. He is responsible
that planned calibration dates are not exceeded without
reporting to QA.
QA is responsible for proper performance/calibration.
7.2 C̲A̲L̲I̲B̲R̲A̲T̲I̲O̲N̲ ̲C̲A̲L̲E̲N̲D̲A̲R̲ ̲A̲N̲D̲ ̲L̲A̲B̲E̲L̲
On the Calibration Calendar is plotted for each registered
instrument:
- actual calibration date
- next calibration date.
These data shall correspond to the informlations stated
on the CALIBRATION LABEL.
7.3 C̲A̲L̲I̲B̲R̲A̲T̲I̲O̲N̲ ̲I̲N̲T̲E̲R̲V̲A̲L̲
Periodical verification/calibration of performance
data shall normally be accomplished for instruments
identified for critical use following the rules stated
in the associated users manual and AQAP-6.
The intervals will be changed due to experience from
use and calibration results.
7.4 E̲X̲E̲M̲P̲T̲S̲ ̲F̲R̲O̲M̲ ̲C̲A̲L̲I̲B̲R̲A̲T̲I̲O̲N̲ ̲I̲N̲T̲E̲R̲V̲A̲L̲
Provided QA approval, the planned calibration time
may be adjusted in the following cases:
- When no sence or importance requires the accuracy
at that time
- When equipment has to be used outside CRA (e.g.
installation works). In this case, instrument
shall be calibrated b̲e̲f̲o̲r̲e̲ leaving.
It is the responsibility of the instrument engineer
to obtain QA approval to such deviations.
7.5 H̲A̲Z̲A̲R̲D̲S̲
Events that might cause impact on performance must
be reported to the instrument engineer or QA immediately.
QA will provide for marking the calibration label
with a big red cross, and removal of the equipment
from the test area or equipment stock.
7.5.1 S̲t̲a̲n̲d̲a̲r̲d̲s̲ ̲a̲n̲d̲ ̲T̲r̲a̲c̲e̲a̲b̲i̲l̲i̲t̲y̲
The calibration laboratory shall have an organisation,
facilities, and traceability of their calibration standards
to national or international standards that fulfills
the requirements to the needed accuracy of the equipment
under calibration. The calibration accuracy shall
consider the cumulative effect of inaccuracies from
the methods and bridges or comparing instruments used
in each link of the traceable calibration chain.
7.5.2 E̲n̲v̲i̲r̲o̲n̲m̲e̲n̲t̲a̲l̲ ̲C̲o̲n̲d̲i̲t̲i̲o̲n̲s̲
High accuracy equipment may require controlled environment
for use and calibraton. Standards for calibration
are typical examples hereof, and they must normally
be stored and used in controlled rooms with stabilized
temperature (+ 22…0e…o…0f…C +/- 5…0e…o…0f…C) and humidity (50% RF)
in order to ensure minimum drift.
8.1 C̲A̲L̲I̲B̲R̲A̲T̲I̲O̲N̲ ̲P̲R̲O̲C̲E̲D̲U̲R̲E̲S̲
8.1.1 G̲e̲n̲e̲r̲a̲l̲
A calibration procedure shall exist for each registered
instrument or measuring equipment that is intended
for accuracy, reproduceable and traceable measurements.
The procedure shall appear from the Calibration Specification
and will normally reflect or refer to calibration instructions
in the equipment manual with addition and specified
changes.
8.1.2 C̲o̲n̲t̲e̲n̲t̲
The procedure must give some general information like:
- Basic accuracy needed
- General decision limits for adjustment
- Environmental conditioning and warm-up time
- Rules for recording of data.
The detailed part shall contain important informations
about:
- Necessary step-by-step instructions
- Accuracy of method/instrumentation
- Methods deviating from standard practices.
9̲ ̲ ̲E̲Q̲U̲I̲P̲M̲E̲N̲T̲ ̲S̲A̲F̲E̲T̲Y̲
9.1 S̲T̲O̲R̲A̲G̲E̲ ̲A̲N̲D̲ ̲H̲A̲N̲D̲L̲I̲N̲G̲
The instruments and equipment shall be handled by instrument
engineers and technicians with education and experience
leaving them with knowledge of how to treat such delicate
things.
Instruments are normally placed on shelves in the general
test area, but selected instruments intended for use
in certain programmes may be separated and locked up
in cupboards during that period.
9.2 T̲R̲A̲N̲S̲P̲O̲R̲T̲A̲T̲I̲O̲N̲ ̲A̲N̲D̲ ̲S̲H̲I̲P̲M̲E̲N̲T̲
Necessary transportation of equipment to and from use,
or calibration outside CRA facilities will take place
under conditions reducing the impact of this to a minimum.
These conditions needs QA approval.
9.2.1 Delicate equipment will normally be accompanied by
CRA-people e.g. at transportation by private car.
9.2.2 Shipment of delicate measuring equipment requires special
attention to:
- Packaging and container
- Shipping documents (e.g. packing list)
- Safety marking: FRAGILE-HANDLE-WITH CARE.
