Selecting The Location; Selecting The Voltage - Micromeritics 1305 Operator's Manual

Selecting the Voltage

Selecting the Location

The Model 1305 Pycnometer performs best in a regulated temperature environ-
ment. It should be installed on a workbench 75-90 cm (30-36 in.) high in a loca-
tion free of drafts from either a forced-air heating or cooling system. It should
not be located near a window where it will be exposed to direct sunlight.
A square meter (10 ft
rear of the instrument should be provided for working space. Ready access to an
analytical balance capable of weighing to 1 mg for sample preparation is advanta-
geous. Space near the instrument in which to mount securely the appropriate gas
cylinder will be necessary if the workbench is not plumbed to supply the gas.
Sharp variations in ambient pressure caused by fans or doors closing rapidly may
cause erratic results; avoid these locations.
Selecting the Voltage
All instruments leave the factory set for 120 VAC and with the line fuse re-
moved. The correct setting of the universal power entrance must be checked and
the appropriate fuse installed before the Model 1305 can be operated. The Model
1305 is designed to operate with either 100, 120, 220 or 240 VAC at 50 or 60
Hz. Voltage selection and fusing are made at the power connector which is lo-
cated on the right side panel of the unit.
The power cord should be disconnected from the Model 1305 before re-
moving the cover from the power input connector. Failure to disconnect
the power cord could result in electrical shock.
1. Make sure the power cord is disconnected from the pycnometer.
2. Using a pointed object, remove the fuse block and cover assembly from the
power connector on the right side of the pycnometer.
2-2
2
) of free space to one side and a few centimeters to the
Figure 2-1. Removing Fuse Block and Cover Assembly
Model 1305 MultiVolume Pycnometer
Jun 99