palintest Green Drop Kit Instructions Manual page 16

Note that the log stores the result in the primary
form.
4.1.6 Reading in Transmittance and Absorbance
When taking readings in Transmittance (%T) or
 
Absorbance mode, use the and keys to step
through the wavelengths until the required
wavelength is reached.
4.1.7 Care and Maintenance
The photometer is designed to give long and
trouble-free operation. Care must be taken,
however, to avoid test solutions being spilt over the
instrument, and to prevent contamination of the
instrument. Spillages or moisture should be wiped
off immediately with a dry cloth. On no account
should solvents or abrasive materials be used to
clean the instrument. Care should be taken to keep
the test chamber clean.
You can check the performance of your instrument
with the check standards provided in this kit. Each
standard is characterised in %T at particular
wavelengths and to check your instrument, simply
read each standard using the transmittance (%T)
setting on your photometer and compare the %T
value on the certificate with that shown on screen
(ensuring you are comparing the %T value on the