■
Alarm display
If conditions exceed the device's specified range, an alarm message and the instan-
taneous flowrate are displayed alternately. In order to use this device within an al-
lowable range, change the conditions of the fluid.
Alarm
display
Cause
AL0
1
Flowrate upper limit alarm
AL02
Temperature lower limit alarm
AL03
Flowrate upper limit alarm + Temperature lower limit alarm
AL04
Temperature upper limit alarm
AL05
Flowrate upper limit alarm + Temperature upper limit alarm
AL08
Pressure upper limit alarm
AL09
Flowrate upper limit alarm + Pressure lower limit alarm
AL
10
Temperature lower limit alarm + Pressure lower limit alarm
AL
1
1
Flowrate upper limit alarm + Temperature lower limit alarm + Pressure lower
limit alarm
AL
12
Temperature upper limit alarm + Pressure lower limit alarm
AL
13
Flowrate upper limit alarm + Temperature upper limit alarm + Pressure lower
limit alarm
AL
16
Pressure upper limit alarm
AL
1
7
Flowrate upper limit alarm + Pressure upper limit alarm
AL
18
Temperature lower limit alarm + Pressure upper limit alarm
AL
19
Flowrate upper limit alarm + Temperature lower limit alarm + Pressure upper
limit alarm
AL20
Temperature upper limit alarm + Pressure upper limit alarm
AL2
1
Flowrate upper limit alarm + Temperature upper limit alarm + Pressure upper
limit alarm
Flowrate upper limit alarm:
Velocity 45 m/s or more.
Temperature lower limit alarm: −15 ˚C or lower.
Temperature upper limit alarm: +60 ˚C or more.
Pressure lower limit alarm:
−50 kPa or lower.
Pressure upper limit alarm:
0.1 MPa or more (model with operating pressure
range 0-0.1 MPa).
0.3 MPa or more (model with operating pressure
range 0-0.3 MPa).
1.0 MPa or more (model with operating pressure
range 0-1.0 MPa).
Chapter 4. TROUBLESHOOTING
17
