Fault
Cause
ð
Possible remedy
Display: Gage pressure
(Outflow pressure too high)
n
Pump level is too high
ð
select a lower pump level.
n
When pressure control is active, the set pressure is too
high
ð
reduce the set pressure.
n
The maximum pressure is too low
ð
increase the max-
imum pressure, but only if your application, hoses, etc.
cannot be damaged.
Display: Evaporator frozen
n
Increase the pump level.
n
Open the manual bypass in the constant temperature
equipment.
n
Increase the flow rate through the application.
Unstable temperature control
(Temperature fluctuates strongly)
n
Increase the pump level.
n
Open the manual bypass in the constant temperature
equipment.
n
If necessary, increase the control parameters Xp and Tn.
n
Increase the flow rate through the application.
n
Reduce the load.
V6
Integral Process Thermostats and High-Temperature Thermostats
151 / 198
