SMC Networks HRS012-A-10 Series - 3.3.4 Troubleshooting of alarms

HRX-MM-N007
Chapter 3 Alarm Indication and Troubleshooting
HRS Series 3.3 Troubleshooting
3-9
3.3.4 Troubleshooting of alarms
AL01: Low level in tank
<Detection method> The level switch in the tank operates to detect the alarm.
Is the circulating fluid at
'H' level or above?
1.
Check of the correct
connections
2.
Check the conditions
of the float and contact
point
Check for the correct
connections.
Y
N
N
Y
Y
Is there circulating fluid
leakage inside the unit?
Does the unit have a
high pressure pump?
Is there fluid leakage from
the mechanical seal?
Is there circulating fluid
leakage outside the unit?
Repair the leaking part
and add circulating fluid.
Y
N
Y
N
Add circulating
fluid.
Repair the leaking part
and add circulating fluid.
Y
N
N
Y
N
Low level in tankAL01
Replace the main board.
See section "4.5.16
Replacement of main board &
communication board".
Replace the level switch.
See section "4.5.7
Replacement of level switch".
Replace the pump or
mechanical seal.
See section "4.5.4
Replacement of high
pressure pump", and
section "4.5.5 Replacement
of mechanical seal set".