Jenway 6300 Ser Man
48
8.8.5
Absorbance Verification
Equipment Required; -
Certified Standard Absorbance Filters or
Potassium Dichromate solution. (See Section 8.8.2)
Turn the unit on and allow the Start Up tests to complete then allow 15
minutes for the instrument to warm up.
Use the up or down arrow keys to select a wavelength at which the filter
or solution is certified.
For the Potassium Dichromate solution use the Sulphuric Acid solution as
a blank, (See Section 8.8.2) if the filter set includes a zero filter use this
as the blank, if not set the blank (zero absorbance or 100% transmittance)
with an empty sample chamber.
Insert the blank (ref. above paragraph) into the sample chamber and close
the lid. Press the CAL key and ensure the display reads 0.000 ABS or
100% T. Remove the blank from the sample chamber.
Insert the certified filter or Potassium Dichromate solution and check that
the reading is within the specified tolerance of the instrument PLUS the
tolerance of the filter/solution used.
Repeat this for other filters or solutions and at other specified
wavelengths as necessary.