4) Use the
⇑⇓
keys to change the setting on the Electronic
Thumbwheel Display so that the Activity Display shows
the current activity of the sample which was calculated in
step 1. The ENTER LED starts flashing.
Because the calibration factors have a finite
number of steps (i.e., the calculated value for activity
may lead you to try and put in 7.345 when the calibration
factor can only be 7.3 or 7.4). You may not be able to
perfectly match the calculated value for activity. In other
words, you may have to round the number.
5) Press the ENTER key. The Selected Isotope key is now
programmed with the Calibration Value on the Electronic
Thumbwheel Display. The ENTER LED turns OFF.
6) Press the SETUP key. The SETUP LED turns OFF to
indicate the Atomlab 100 is out of Setup mode.
Should you find that you never use one or more of
the standard Isotope Selection keys, you may use the proce-
dure above to reset them for a radioisotope you do frequent-
ly measure. However, you must identify or mark the key with
the isotope for which it is programmed.
SETTING OTHER ISOTOPE VALUES
The following procedure allows you to measure the activity
of a radioisotope not included among the ten standard pre-
set keys. The calibration values you set for the keys labeled
OTHER, 1 and 2 are programmed into memory, eliminating
the need to reset the keys later (unless you need to meas-
ure a different non-standard isotope).
In order to change the default Calibration Value for
the other key you must select this key prior to initiating the
Setup mode.
ATOMLAB Dose Calibrator Operation Manual Chapter 5
Biodex Medical Systems 5-7 Release 2.0
OTHER, 1 or 2
Key Calibration
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