Environmental Express AutoBlock II - Manual (Page 21)

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Note: Acceptable volume range is 0.1ml to 50.0ml. Volumes can be entered
in 0.1ml increments.
Example: 2 (or 2.0) in the Enter ml box = 2mls per cup
D) Press Inject. You have now injected the prepped reagent at the selected
volume into the selected column of sample cups.
E) By moving the reagent injection arm to another column and pressing Inject,
you can duplicate steps A through D.
F) If a secondary reagent is to be added to the sample cups, Purge and Prep
procedures (see 5.2.1) are required prior to addition of secondary reagent(s).
G) Once reagent addition is completed, Purging with DI Water is required (see
5.2.1.) Purging reduces the chance of plumbing contamination and lengthens
the life of all wetted parts.
5.3 Temperature Control
Enter the temperature needed into the temp control box, and press apply. (See
Operating the Keypad, if you are not sure how to do this.) Temp range is ambient
to130 degrees Celsius. Variable temperatures A & B can also be entered for
heating. (See Section 8.1 (F) for additional details).
Application Note:
Understanding AutoBlock Temperature
To successfully operate the AutoBlock, a firm handle on AutoBlock Temperature
is required. Please spend the time necessary to learn this information.
Definitions
Graphite temperature
A) This refers to the actual temperature of the graphite block that holds the
digestion cups. This temperature is continually displayed in the upper left-
hand corner of the screen.
B) Set Point temperature
This is the desired temperature of the graphite. The set point temperature can
be programmed in the manual mode.
C) Sample temperature Calibration
Sample temperature is the actual temperature of the sample inside the
digestion cup. Temperature calibration is the process of adjusting the Set Point
temperature until an acceptable Sample temperature is achieved.
Temperature calibration is performed when the AutoBlock is initially set up in