Hitachi ZA3000 Series Instruction Manual page 236

3.1 Generation of Measurement Conditions
 Hold Time
The end temperature can be held for the set time.
Input range
Dry .................... 0 to 100 s
Ash .................... 0 to 100 s
Atomize ............. 1 to 20 s
Clean ................. 1 to 20 s
Cool ................... 12 to 100 s
NOTE: The limits on the ramp time and hold time vary with the
temperature program developed and are dependent on the
temperature of the cuvette in one measurement session.
Set the limits to meet the following criteria.
 1500C≦Cuvette temperature <2000C
 2000C≦Cuvette temperature <2500C
 2500C≦Cuvette temperature <2800C
 2800C≦Cuvette temperature
 Gas Flow
Specifies the flow rate of carrier gas. For stages other
than atomization, set 200 mL/min usually for purging
solvent vapor and sample vapor. In the atomizing
stage, absorption sensitivity is enhanced by increasing
atomic vapor density at a reduced gas flow rate. The
carrier gas is passed through to protect the cuvette. If
the gas flow rate is set to a low value, the life of the
cuvette will be reduced.
Input value: 0, 10, 30, 200 mL/min
3 - 12
(1 to 10 s for Pyro Tube C HR and D
HR)
The sum of the ramp time and the hold
time: less than 100 s.
The sum of the ramp time and the hold
time: less than 25 s.
The sum of the ramp time and the hold
time: less than 20 s.
The sum of the ramp time and the hold
time: less than 10 s.