Flow Rate Indication Is Not Correct - Toshiba L5232 Instruction Manual

13.2.2 Flow rate indication is not correct

Is the velocity range correctly
set?
Is zero point correctly set?
Is the exciting current correct?
Isn't the inside wall of detector
pipe or electrode contaminated?
Is the output load resistance 1k
or less?
Aren't there two load resistors
connected to the output in
parallel?
Is accuracy calculated as follows?
(Measured flow rate)
Actual flow rate
100 (%)
Contact your nearest Toshiba
representative.
START
YES
YES
YES
NO
YES
NO
(Actual flow rate)
YES
- 160 -
NO
Set it correctly according to 8.
"Parameter Settings/Adjustment."
NO
Perform zero adjustment according to 6.
"Operation" and 8.5 "Zero Adjustment."
NO
Set the exciting current correctly
according to 8. "Parameter Settings."
YES
Clean the inside wall of the detector pipe
to remove the deposits.
NO
Design the output circuit so that the
output load resistance is less than 1 k .
YES
Connect the two load resistors in series,
if necessary.
NO
Calculate as shown on the left.
6F8A0917