Yokogawa Removable Chassis DX1000N - Manual (Page 36)

IM 04L41B01-05EN
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1.6 Signature Function (Digital signature)
Signing is the act of attaching the following approval information to a measured data file.
• Pass or fail judgment
• Comment
• Name of the user who attached the information and the date and time when the
information was attached
For the setting procedure, see section 2.1.
For operating instructions, see section 2.3.
Signable Files
Display and event data files (.DSD and .DSE extensions) can be signed.
Two Process Types
Set the process type to choose what kind of collection of measured data can be signed.
Process Type Signable Data
When signing from the DX When signing from DAQSTANDARD
Batch When the measured data from the
start to stop of recording is contained
in a single file.
When all the measured data files from
the start to stop of a recording are
present. You can specify one file or
multiple files.
Continuous Each measured data file. Each measured data file.
The “continuous” process type is useful when you are dealing with a continuously
operating process, such as the monitoring of the air conditioning temperature. You can
sign each individual measured data file.
On the other hand, the “batch” process type is useful when you are dealing with a
process such as one in which recording starts and stops in accordance with production.
You cannot sign a unit of data unless all the files from the start to the stop of the
recording are present.
Signature Privileges and Signatures
Users and Signature Privileges
• You can attach three signatures (Signature 1, Signature 2, and Signature 3), each
with different privileges, to a single display or event data file. For example, you could
reserve Signature 1 for the operator, Signature 2 for the quality control supervisor, and
Signature 3 for the general supervisor.
• An administrator can attach any of the signatures to a file.*
• A user can only attach a signature that they have been given permission to attach.*
• A signature can only be attached once. You cannot overwrite a signature.
* Limited to users and administrators who were registered at the time that the file was
created.
Deleting and Changing Approval Information
You cannot delete or change the approval information that has been attached to a file.