Retsch Mixer Mill MM 500 control, Manual

Page: 114 / 130

Error Messages and Information Notes
114
E87 The target temperature
could not be reached.
•
Check whether the stainless steel hose
is connected to the tank.
•
Check whether the LN
2
level in the tank
is sufficient.
•
Check if the withdrawal tap on the LN
2
tank is open.
•
Check whether the tank pressure
corresponds to the specification in the
Technical Data.
•
Check whether the connection lines
between the cryoPad and the MM 500
control are tightly connected and do not
leak.
•
Check and ensure that no significant
leakage of nitrogen is visible. A nitrogen
leakage can be recognized by nitrogen
drops beading on the table surface until
they have evaporated.
•
Check whether ambient conditions for
room temperature and humidity have
been observed (see Chapter 4.5).
•
If the error persists, please contact the
service of MM 500 control