Advanced Operations

6.1.2 Free programming program type

Free Programming is an advanced option for entering original user-developed methods. When the Free Programming option is selected, an overview of the specifications of the programmed test is displayed. Each input option can be modified to develop the user method. Refer to Table 10 for more information. To modify an input option, select the appropriate line and press Edit.

Important Note: Perform steps 1–6 of Programming a New User

Method (section 6.1.1 on page 61) before proceeding with Free

Programming.

Highlight the line containing the program point that is to be edited or defined and press Edit.

 

Table 10 Definitions of the program points

 

 

Program point

Description

 

 

Name

Name of the analysis parameter

 

 

Version

An abbreviation or version number assigned by the user is entered here.

 

 

 

Exact definition of the test: the number of wavelengths at which measurements are made, the

Measurement Process

number of absorbance measurements needed, the keys to be used, any waiting periods between

 

measurements, etc.

Formula

Definition of the formulas with which the test result is calculated.

 

 

 

The number of variables shown in the display depends on the definition of the measurement

Variables

process and the formulas. Input of the numerical values of the wavelengths, factors, constants,

 

etc.

 

 

 

Used to enter abbreviations and defined times for up to four timers. Highlight the appropriate line

Timer 1, Timer 2,

and press Edit. The timers are activated or deactivated with the control boxes on the left of the

Timer 3, Timer 4

display. In the next column, a selection can be made from a list of names that describe the

 

corresponding work step. In the third column, the times for each active timer are entered.

 

 

6.1.2.1 Measurement process

The measurement process defines the handling and the measurements of the test:

At which and how many wavelengths should measurements be completed

How many absorbance measurements must be completed?

When should the zero measurement and the sample measurement be completed?

Are waiting times necessary between measurements?

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Hach DR 2800 Advanced Operations Free programming program type, Measurement process, Definitions of the program points