Parr Instrument A2110E - Manual (Page 7)

Motor Controller
w w w . p a r r i n s t . c o m 7
Switches and Indicators
Front View A2110E Motor Controller
Main power switch
This switch will cut off power to the controller.
The Motor Controls consist of an on-off switch
and a speed control knob. The speed control knob
should be turned down to a minimum setting before
turning on the motor switch to minimize electrical
surges within the speed control unit.
The optional digital display shows the stirring
speed from the sensor mounted on the reactor. If
equipped with a motor control module, there will
also be a remote/local switch. When the remote/
local switch is in local mode, the speed control
knob will adjust the motor stirring speed. When the
remote/local switch is in remote mode, the motor
stirring speed may be adjusted from the RPM mod-
ule. If there is no motor control module installed,
the remote/local port will be plugged and the speed
control knob is the sole control for the stirring
speed.