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GA01208_002_C0 - 11/2016 - © Leybold
4.3.3 Operating Temperature
Proper operation of the TRIVAC-B-DOT is ensured in the ambient
temperature range between 12 °C to 40 °C (55 °F to 104 °F).
At operating temperature, the surface temperature of the TRIVAC-B-DOT
may lie over 70 °C (156 °F).
Beware of hot surfaces
There is the danger of receiving burns.
Observe Safety Informations 0.3.
If – due to the ambient conditions – this temperature range is exceeded at
either end of the range, contact Leybold Sales.
The motor may accelerate with a delay when simultaneously an undervoltage
is present at the motor and the pump is at the minimum permissible and
ambient temperature.
Under such operating conditions the motor protection switch may respond.
In this case the motor may be started again.
In the case of motor 6506961 the minimum permissible temperature is 15 °C
at an undervoltage of 380 V -10% = 342 V and a mains frequency of 60 Hz.
4.4 Shutdown
If the pump was exposed to aggressive and corrosive media, we recom-
mend that you let the pump continue to operate even during long non-wor-
king intervals (e.g. overnight) with the intake line closed and the gas ballast
valve open. This avoids corrosion during idle periods and difficulties when re-
starting the pump under conditions where the lubricant has been chemically
modified.
When pumping condensable media let the pump continue to operate
with the gas ballast valve open and the intake line closed before swit-
ching off (see Chapter 4.3.2).
If the TRIVAC-B-DOT is to be shutdown for an extended period after
pumping aggressive or corrosive media or if the pump has to be stored, pro-
ceed as follows:
Pump and operating agents may be contaminated
If hazardous substances have been pumped, then these substances
can escape from the pump and from the oil. Introduce adequate safety
precautions; use gloves, face protection or a respirator, for example.
Observe Safety Informations 0.4.
Operation
CAUTION
WARNING
CAUTION
