MKS 246C, Instruction Manual

Page: 35 / 92

Chapter Two: Installation Setup
25
Power Requirements
The power requirements for the 246 unit are:
•
115 VAC Setting: 100 to 120 VAC nominal, 50/60 Hz
•
230 VAC Setting: 200 to 240 VAC nominal, 50/60 Hz
The power consumption for the 246 unit is:
•
70 VA (maximum)
Mounting Instructions
Type 246 Unit
The 246 unit can be used as a bench top instrument, or can be mounted in a panel cutout, in a
half-rack holding up to 2 units, or in a 19” full-rack holding up to 5 units. Part numbers for these
accessories are listed in Unpacking Checklist, page 19.
However the unit is mounted, leave adequate space around it for proper ventilation. Refer to
Dimensions, page 23, for dimensional drawings of the 246 unit. Refer to System Configurations,
page 26, for more information.
Mass Flow Device
Caution
Install the mass flow device (MFC or MFM) in the gas stream so that
the flow direction corresponds to the flow marking on the base of the
equipment.
Allow enough space for connector clearance, access to the zero adjustment, and access to the seat
adjustment in the control valve. Refer to the appropriate instruction manual as needed for
complete installation instructions.