Gardco 8400K Handbuch - Seite 5

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CALIBRATION PROCEDURE

Calibration is recommended once per year to ensure proper
function and accuracy of the 8400K.
Metrology labs can provide a NIST traceable certificate of calibration
(with measurement data) using this procedure.
A.
EQUIPMENT
One set of gage blocks, current and traceable to N.I.S.T.
B. INSTRUCTIONS
1. Slide one gage block lengthwise across the top of the other,
creating a step at the end. (The blocks "ring" together with this
method.)
2. Place micrometer over the "step" and focus on the top of the
upper gage block. Position so approx. one-half of the viewing
field is on upper block.
3. Set digital display to "0.0000"
4.
Focus on lower gage block. Display should show thickness of
upper block.
Suggested gage block sizes:
BOTTOM
0.1000"
TOP
0.0625" , 0.2000" , 0.5000" , 1.0000".
(Use 4X Objective for 0.2500" and above.)
8400K DIGITAL OPTICAL MICROMETER
MANUAL PAGE 7

CALIBRATION CERTIFICATE

Calibration is recommended once per year to ensure proper
function and accuracy of the 8400K.
Metrology labs can provide a NIST traceable certificate of calibration
(with measurement data).
SERIAL#
TEST#
INSPECTOR:
□
RENE CO. INSPECTION DEPARTMENT
LOCATION:
□
PRIMARY INSTRUMENTS INC.
_____ ºF ºC
TEMP:
Calibration Test: In Tolerance
Procedure: G.A.C.T.*
Accuracy: +/-0.001 IN.
This instrument meets this standard.
Remarks
*Generally accepted calibration techniques.
Procedure: Observe gage block thickness through optical micrometer.
Calibration is provided at a 4:1 TEST UNCERTANTITY RATIO (TUR) unless
otherwise stated. This certificate may not be reproduced, except in full.
8400K DIGITAL OPTICAL MICROMETER
TEST DATE
□
OTHER LAB/AGENT
________ %
HUMIDITY
MANUAL PAGE 8