Hach Portable Spectrophotometer DR 2800, User Manual

Page: 74 / 126

74
Advanced Operations
Process Timer key
1. Press the Process Timer key to enter any waiting, reaction or
handling times that have to be taken into account. Use the
alphanumeric keypad to enter the time. Press
OK and confirm
the input by pressing OK again.
Note: This time is integrated into the measurement process.
Note: The entered measurement sequence is displayed.
[R] key / Reading...
1. Press the [R] key to program a measurement of the substance
that is to be analyzed. Confirm with OK .
2. Press New and then Reading... and use the alphanumeric
keypad to enter the wavelength at which the measurement is to
be completed. Press
OK and confirm the input by pressing OK
again.
3. If measurements are to be completed at a number of
wavelengths, repeat the above two steps for each wavelength.
Note: The entered measurement sequence is displayed.
{ } key
Elements of the measurement sequence that are to be repeated
are placed in brackets.
The left bracket "{"marks the start of the sequence that is to be
repeated and the right bracket "}" marks the end.
Note: The key showing the right bracket remains inactive until a left bracket
is entered.
1. Press { .
2. Press the key that defines the sequence that is to be repeated:
[Z] or [R] . Confirm with OK .
3. Press New and then press Zeroing... or Reading... and use
the alphanumeric keypad to enter the wavelength at which the
measurement should be completed. Press
OK and confirm the
input by pressing OK again.
4. Press } to end the sequence.
Note: If an action such as a zero measurement recurs at different
stages of a measurement sequence, the series of actions is numbered
sequentially (e.g. Z1, Z2, etc.).