horiba SF-1U, Instruction Manual

Page: 51 / 60

E-16
8.3. A2 alarm
(Detecting stop detector errors)
A2 alarm generated
Check filming condition Abnormal
Abnormal
Normal Check filming operation
Abnormal
Check measured flow rate
※
Repair
Replace VP Normal Normal
Abnormal Check filming liquid Abnormal
Check alarm time for contamination
Set time Normal Replace
Normal filming liquid
Abnormal Check measuring tube
for contamination
Clean measuring tube Normal
※
Check, repair or overhaul
detector
Items marked with “
※
” are services from HORIBA STEC,CO.,LTD. or your dealer.
Placing order for the services is recommended.

A2 Alarm (
Ａ２：−−−−
)
A stop detector error occurs. It is generated if the time from the film detection by the
start detector to the film detection by the stop detector takes more than 120 seconds
(180 seconds for VP-1U) due to film breakage or attempting to measure a flow rate
outside the specification range.
Wet inside measuring tube and check the flow rate attempting to measure. The
alarm time (120 or 180 seconds) can be changed.
⇒6.4
Cleaning measuring tube.
⇒7.1.3
Press the START key to reset the alarm.