Hach DR 6000, User Manual

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Standard programs
5.4.3 Use of program timers
Some procedures do not require the use of timers. Other
procedures require several timers. These timers are
pre-programmed into each
Stored Program , along with a
description of the activity to be performed during the timed period.
Dilution Factor Off/On
A corrective dilution factor can be entered in order to take account of certain properties.
The number entered at the dilution factor prompt will be multiplied by the result to compensate for
the adjustment. For example, if the sample has been diluted by a factor of 2, enter 2. The default
setting of the dilution factor is turned off.
Note: During use of a dilution factor, the dilution symbol is shown on the display.
Standard Addition
This option enables the accuracy of the measurements to be checked. The procedural instructions
for test parameters contain a detailed explanation of how to use this function.
Standard Adjust:
Off/On The procedural instructions for test parameters indicate whether a standard adjustment is
necessary and, if so, how to proceed.
Chemical Form Some of the stored tests/methods allow selection of the chemical form and measuring range.
Reagent Blank: Off/On
Some of the stored tests/methods include the "Reagent Blank" function. This enables the reagent
blank value to be added to or subtracted from, the subsequent readings. The reagent blank value
shifts the calibration curve along the y-axis, without changing the shape or gradient of the curve.
The effect corresponds to a y-axis intercept of the calibration straight line. This is clarified by the
following formula: concentration =[conc. factor) x Abs] - (reagent blank)
Save as User Program To store the selected parameters as a User Program, refer to section 6.1, page 79 .
Multiple determination This option allows multiple measurements of a sample.
Reading Mode
The "Reading Mode" function is available for some saved tests/methods.
Single Reading : A single reading is displayed when Read is pressed.
Continuous Readings : After the zero measurement, all readings are displayed automatically and
continuously.
Carousel 1 inch square : Optional measurement of carousel insert with up to 5 square cells.
Carousel 1 cm square : Optional measurement of carousel insert with up to 7 square cells.
Recall Data To recall saved measurement data or time courses, refer to section 5.3, page 44 .
Instrument Setup
mode
Basic data for the instrument, refer to section 5.2, page 27 .
Table 4 Stored programs options (Continued)
Options Description