Overprinting DA Labels 80 and 163

TB 750-25

C-7. Overprinting DA Labels 80 and 163. Overprinting of DA Labels 80 and 163 will

be controlled by the TMDE support coordinator or the designated alternate.

Overprinting may be accomplished with a rubber stamp, or by hand printing. When

using a rubber stamp, approximately 12mm (1/2 inch) letters with a thin outline

overprint is recommended. Overprinting is authorized as follows:

NOTE

For illustration purposes of overprinted DA Labels 80 and

163, only the DA Label 80 will be depicted with overprinting

in figures C-5, C-6, C-7, C-8, C-9, and C-10.

a. Void (fig. C-5). Calibration of an instrument may become doubtful for many

reasons. When the accuracy of an instrument is uncertain, it will not be used. To avoid

the use of instruments with doubtful accuracy, unserviceable instrument, or when the

calibration void date has been exceeded prior to submission for calibration, the existing

DA Label 80 or DA Label 163 shall be overprinted with the word "VOID". When the

instrument is submitted for scheduled calibration, the need to overprint VOID is

eliminated.

b. Calibration Not Required (CNR), (fig. C-6). CNR overprinting is applicable for an

instrument that does not require calibration, or an instrument that requires calibration,

but due to its application, calibration is not required. For example, CNR could be

applied to a tube tester, a dial indicator gage used only as a null indicator, an

instrument used for non-precision testing, or measuring, or instruments used for

indicating devices only, etc. When an instrument is designated as being CNR, a CNR

overprinted DA Label 80 will be signed in block 4 and affixed to the item by the TMDE

support coordinator/designated alternate or the supporting activity lab/team chief.

Blocks 1 and 5 will be completed. Any previous calibration labels will be removed.

Identifying an instrument as CNR does not relieve the owner/user of its organizational

maintenance responsibilities, or from obtaining repair support when the item is

unserviceable. CNR labels will be replaced whenever they become illegible or status of

the instrument changes.

c. Calibrate Before Use (CBU), (fig. C-7). CBU overprinting is applicable to some

instruments held in storage. CBU will be overprinted on a new DA Label 80 and affixed

to the instrument at the time it is placed in storage. The TMDE support coordinator or

designated alternate signs block 4 of a new DA Label 80, overprinting it CBU. Enter

appropriate information in block 1 and block 5, then affix the DA Label 80 to the

instrument being placed in storage. Instrumentation with a CBU overprinted label must

not be used. When the instrument is required for use, it must be calibrated, the CBU

label removed, and a new DA Label 80 or 163 (completed as prescribed in this appendix)

will be affixed to the instrument. CBU labels will be replaced whenever they become

illegible or status changes.

C-9