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Seaward Checkbox 17 Plus User Manual

Page 4

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Calibration
All reputable instrument manufacturers will supply upon request
information relating to the accuracy on each measuring scale. Provided
any variation between the CheckBox 17 Plus Certificate of Test and the
measurements obtained from the CheckBox 17 Plus are within the
accuracy stated by the manufacturer the user may be confident that his
instrument is measuring correctly in that area of the measuring range.

Most instruments will state the accuracy at a particular temperature (e.g.
2O° C). It is recommended that when using the CheckBox 17 Plus care is
given to avoiding excessive temperature variation and extremes of
temperature.

General Care and Maintenance
CheckBox 17 Plus is a precision instrument and should be treated as such.
Always:
1) Ensure that the mains lead and the terminals are in good condition.
2) Keep the instrument clean and dry.
3) Avoid excessive temperature variations.
4) Storage under high temperature, high humidity conditions should be

kept to a minimum.

CLEANING
Cleaning of the case may be carried out using a damp lint free cloth while
the CheckBox 17 Plus is disconnected from the mains supply. Ensure
that the test sockets and mains socket are not wetted.

FUSE REPLACEMENT
The CheckBox 17 Plus is protected by a HRC Fuse Link that is located in
the socket positioned at the base of the instrument. Should the fuse need
replacing always use one of the same type and rating (20mm, HBC, T5A,
250V).

WARRANTY AND REPAIR
Should the CheckBox 17 Plus require repair or calibration within the UK it
should be returned to:
Seaward Electronic Limited
Bracken Hill
South West Industrial Estate
Peterlee
Co. Durham
SR8 2SW
England.
Telephone: +44 (0)191 586 3511 Fax: +44 (0)191 586 0227.
www.seaward.co.uk
[email protected]
[email protected]
[email protected]

OVERSEAS
If the instrument owner resides outside the UK, they may either return the
instrument directly to Seaward at Peterlee, or to their local sales agent, a
list of whom can be obtained from Seaward. It is important that a copy of
the invoice and packing note are sent by airmail to clear the product
through customs.

Estimated repair charges (where appropriate) and freight charges will be
advised to the owner before work is commenced.

295A557 Rev 2