Fuji Electric ZSJ Instruction Manual page 74

3.7.1.3 Explanation of sample switch method
timing.
Measuring time of
reference gas
Folw time of
reference gas
Close
DO26 contact
Open
Close
DO27 contact
Open
measuring
position
Switching time of reference gas : 1 to 30s (Initial value 5 sec)
Measuring time of reference gas : 1 to 60s (Initial value 5 sec)
Note) Switching time of the reference gas, measuring time of the sample gas, flow time of the
reference gas and flow time of the sample gas are updated automatically based on
following relational expression.
Switching time of sample gas (t1) = Switching time of reference gas (t3)
Flow time of sample gas (Ts) = Flow time of reference gas (Tr)
Flow time of reference gas (Tr) =
Flow time of sample gas (Ts) =
1 cycle = flow time of reference gas (Tr) + flow time of sample gas (Ts)
INZ-TN2ZSJ-E
Measuring time of
sample gas
Folw time of
sample gas
1 cycle
Switching time of reference gas (t3) + measuring time of reference gas (t4)
Switching time of sample gas (t1) + measuring time of sample gas (t2)
Measuring time of
reference gas
Folw time of
reference gas
65
Measuring time of
sample gas
Folw time of
sample gas