Operations manual AQUASTOP
®
II
12
During normal operation, AQUASTOP® II works in
surveillance mode. The actual temperature of the
cooling water is shown in the upper part of the dis-
play. If an external temperature sensor is used
(which automatically disconnects the internal tem-
perature gauge in the flow sensor), make sure that
this sensor is located at an appropriate position to
measure the critical temperature in the process.
The measured cooling water flow in liter per minute
is shown in the lower part of the display.
If the actual temperature approaches the program-
med limit value (see chapter 7.1), a pre-alarm
sounds if the tolerance (see chapter 7.3) is reached.
The red LED „High temperature“ flashes and an
acoustical alarm sounds at the same time.
If the limit temperature is reached, the heating load
is definitely switched off (yellow LED „Heating“ is
extinguished), the red LED „Temp high“ lights conti-
nuously and the floating contact for external alarm is
activated. The temperature indication on the display
flashes also, the solenoid cooling water valve re-
mains open to ensure the correct cooling of the in-
stallation.
