Heidolph Hei-VAP Precision - Manual (Page 47)

Errors and Troubleshooting Errors and Troubleshooting
92 93
Error / message
error text
Cause Remedy
The set safety pressure
was exceeded. ‒ Pressure sensor safety
pressure is exceeded.
Deactivate the unit
Check if the pressure sensor
has responded. If yes, reset
(see chapter “Maintenance,
cleaning, service” –
“Maintenance”)
Contact service
The vacuum box is not
connected or defective. ‒ Vacuum box is not connected
or defective
Check the connection
between the vacuum box
and the evaporator.
Contact service
The aeration valve is
defective. ‒ Vacuum valve short circuit Contact service
The vacuum valve is not
connected or defective. ‒ The vacuum valve is not
connected
‒ The connection between the
vacuum box and the vacuum
valve is interrupted
Connect the vacuum valve
Check the connection
between the vacuum box
and the vacuum valve.
The vacuum valve is
defective. ‒ The vacuum valve is short
circuited
Replace the vacuum valve
The vacuum pump is not
connected or defective. ‒ The vacuum pump is not
connected
‒ The connection between the
vacuum box and the vacuum
pump is interrupted
Connect the vacuum pump
Check the connection
between the vacuum box
and the vacuum pump.
The rotation drive was
overloaded or is defective. ‒ Drive unit is defective
‒ Motor overload shutdown Deactivate the unit
Stop drive unit for cooling
down
Contact service Table 7-3: Troubleshooting table - Hei-VAP Precision
The rotary evaporator is checked after “power on” in an initialization phase for connected
components. The function scope of the rotary evaporator is based on the connected
units.
Missing component
Description and response of
the evaporator
Remedy
Vacuum box No vacuum box is connected:
‒ Actual value display of the
vacuum is not displayed
‒ The vacuum entry is not
displayed
‒ “Auto
easy
“, “Auto
accurate
“ and
“Gradient“ modes are not
displayed.
Note: An evaporator can be
operated with a separate pump
stand in this condition.
Connect component
Reset via power off/on
Vacuum valve or
vacuum pump No vacuum valve or vacuum
pump is connected.
‒ Vacuumcontroller is not
active
‒ “Auto
easy
“, “Auto
accurate
“ and
“Gradient“ modes are not
displayed.
Note: An evaporator can be
operated with a separate pump
stand in this condition.
Connect component
Reset via power off/on
Temperature sensor
T boiling The temperature sensor for
calculating the boiling
temperature is not connected:
‒ The vapor temperature is not
displayed
Connect component
Temperature sensor
Auto
accurate
sensor
The temperature sensor for
controlling the Auto
accurate
mode is
not connected:
‒ “Auto
accurate
“ mode is not
displayed
Connect component
Table 7-4: Missing Components