2-4 P/N 9-500-0255
Service Manual
Chapter 2: System Installation
Unit Installation
3.0 Unit Installation
The following sections detail setting up, positioning, and installing the Affinity Series
Mammography unit in the exam room.
As appropriate, install the Affinity Series Mammography unit in the exam room as per the
following general sequence of steps:
Note… Thoroughly read all procedures prior to starting.
1. Position the Gantry in the area of the exam room where the unit will be permanently
installed. Ensure the Gantry is positioned for easy access to the rear of the unit.
2. Perform the following installation procedures in the order given.
• Input Power Configuration—Section 3.1
• Power Cable Connection—Section 3.2
• Remote X-ray ON/Power ON Light Connection—Section 3.3
• Control Panel Installation—Section 3.4
• Securing Unit in Position—Section 3.5
• Installing the Unit Accessories—Section 3.6
• Initial Start Up Procedures—Section 3.7
• Final Operational Setup—Section 3.8
Note… Do not replace any covers or panels until told to do so.
3.1 Input Power Configuration
The isolation transformer must be configured to match the power source at the site. This
portion of the manual details the steps to properly configure and connect the mammography
unit to a voltage source.
Before connecting the unit to a power outlet, verify the source voltage as follows:
1. Measure the voltage at the outlet receptacle.
2. Inquire as to any history of voltage fluctuations or voltage-related problems that have
occurred in other equipment at the site.
3. Check the ground impedance using the following formula:
Where:
R = Ground Impedance
V
NL
= Voltage at no load
V
FL
= Voltage at full load (32 kV, 100 mA)
I
MAX.L
= Current at full load
Ground Impedance must be no more than:
0.20 Ω at 208, 220, 230, 240 V
~
TAP
0.16 Ω at 200 V
~
TAP
R
V
NL
V–
FL
I
MAX L•
-------------------------=
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