T-N diagram (production time related to quantity)

Note: The T-N diagram evaluates only job-related times.

Objectives

The T-N chart (1) is used exactly like the P-N chart. In this chart, the duration of the operation (3) is evaluated in relation to the good sheets of the operation (2).

Explanation of the T-N diagram

​•​Hours per operation = total operation time/operation = duration = T

​•​Impressions per operation = good impressions/operation = N

​•​Each dot represents a produced operation with a link to the job report (click on the dot).

​•​Graphic evaluation (curves) of the relationship between:

​•​Operation duration in hours (total operation duration = start to end of the operation)

​•​Impressions per operation (number of good impressions for every operation).

​•​Comparison of several machines in one diagram (dots of different colors represent different presses).

​•​Highly productive operations are in the lower part of the average curve, operations with low productivity are above the average curve.

Note: A job with two operations (perfecting) on one press is represented by one dot.

Table view

In the table view, the productivity for one or more printing machines is listed for a selected period. The table view is the basis for all other productivity reports. Only times lying within the selected period of time are considered. Provided an operation starts, for example, before the defined period of time, the times before this period of time will not be evaluated.

Notes on the displayed values

Prinect Production Cockpit

Prinect Production Cockpit - Analyze Point - Jobs

Description: Analyze Point - Jobs
Keywords: Analyze Point, Jobs
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