5.1 Additional Standards for
Monitoring Test Equipment
To check proper operation of the
instrument, measurements with
special test standards should be
performed at regular intervals
(about once every three months).
The appropriate test standards are
listed in the Ordering Guide.
The displayed readings should fall
within the specified values for the
standard. If they do not, check that
the standard was clean and that the
device was properly calibrated. If
cleaning the standard and
recalibration do not correct the
error, please contact Customer
Service.
5.2 Cleaning the Standards
Calibration with a dirty or damaged
standard may severely affect the
accuracy of measurements.
Standard surfaces are very delicate.
Be very careful when cleaning
them.
Use a fresh, soft cloth, and wash
the standards in running or standing
cold water. Do not apply a
scrubbing action or heavy pressure.
Make sure no large particles that
might damage the surface adhere to
the cloth.
Do not use aggressive cleaners like
solvents, rubbing alcohol,
trichloroethylene, benzine, or strong
alcohols, acids or lyes. Most
chemical cleaners or polishes will
cause damage.
To remove stubborn dirt, add a little
household dish detergent to the
water. Rinse with distilled water.
Dry with compressed air and blow
off any dust or lint.
Never rub the standard dry! The
rubbing action may cause
scratches from surface dust.
Precise calibration is possible only
with flawless standards. If visual
appearance or measurement errors
suggest that a standard is compro-
mised, we’ll be glad to check it.
5.1 Additional Standards for
Monitoring Test Equipment
To check proper operation of the
instrument, measurements with
special test standards should be
performed at regular intervals
(about once every three months).
The appropriate test standards are
listed in the Ordering Guide.
The displayed readings should fall
within the specified values for the
standard. If they do not, check that
the standard was clean and that the
device was properly calibrated. If
cleaning the standard and
recalibration do not correct the
error, please contact Customer
Service.
5.2 Cleaning the Standards
Calibration with a dirty or damaged
standard may severely affect the
accuracy of measurements.
Standard surfaces are very delicate.
Be very careful when cleaning
them.
Use a fresh, soft cloth, and wash
the standards in running or standing
cold water. Do not apply a
scrubbing action or heavy pressure.
Make sure no large particles that
might damage the surface adhere to
the cloth.
Do not use aggressive cleaners like
solvents, rubbing alcohol,
trichloroethylene, benzine, or strong
alcohols, acids or lyes. Most
chemical cleaners or polishes will
cause damage.
To remove stubborn dirt, add a little
household dish detergent to the
water. Rinse with distilled water.
Dry with compressed air and blow
off any dust or lint.
Never rub the standard dry! The
rubbing action may cause
scratches from surface dust.
Precise calibration is possible only
with flawless standards. If visual
appearance or measurement errors
suggest that a standard is compro-
mised, we’ll be glad to check it.
Summary of Contents for Haze-gard plus
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