Learning Event 3:
LOCATE AND DESCRIBE THE FUNCTION OF THE CONTROLS AND INDICATORS ON THE VERSAMAT
11C-MW FILM PROCESSOR.
1. Controls and indicators.
Before you operate the Versamat processor, you
must understand the location and functions of the controls and indicators.
During the following discussion, refer to Figures 2-8 and 2-9.
a. Dryer fan switch. The dryer fan switch operates the blower and applies
power to the dryer heater circuit. When the dryer thermostat calls for heat, a
pilot lamp illuminates.
b. Main drive switch.
The main drive switch, protected by the 12-amp
fuse, applies power to the main drive motor and speed control circuits. The
motor starts immediately, but there is an approximate 3-second delay before the
transport system begins to drive.
This allows the motor to reach operating
speed and the other electrical components to warm up before operation.
c. Replenisher pump switch.
This switch controls the power to the
replenisher pumps. The switch has three positions, MANUAL, OFF, and AUTO. In
AUTO, the replenisher pump is energized by a microswitch under the detection
roller as film is fed between the rollers. The AUTO mode is used primarily in
processing sheet film.
In the MANUAL position the replenisher pumps operate
continuously for processing continuous lengths of thin base film.
The
replenishment assures a fresh flow of chemicals to the machine.
To prevent
unnecessary waste of chemicals, turn the pump switch OFF immediately after the
processing is completed.
Figure 2-8.
Control panel
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