GE HEALTHCARE OPTIMA XR200AMX/XR220AMX
D
IRECTION 5336113-1EN, REVISION 10 INSTALLATION MANUAL
Chapter 3 Installation Page 43
3.5.1.5 Taking ground measurements
1. Turn off system power and main circuit breaker.
2. Connect cable A to the grounding pin on the electrical plug.
3. Connect cable B to the first measurement point listed in Table 3-3.
4. On the tester, press the green START button.
The orange indicator is displayed, the Test Current display value quickly increases from 0.0 to
the preset output current (25.0 A or 30.0 A), and the timer value decreases from 5.0 seconds
to 0.0 seconds.
If the test passes, the green Pass indicator is displayed. Record the displayed resistance value
in Table 3-3.
5. Press Stop.
6. Move cable B to the next measurement (Table 3-3), then repeat steps 4 and 5.
The voltage must not exceed 2.5 V (0.1 ohms).
Table 3-3 Ground measurement test points
Component Measurement point
Measured
resistance
Tube
Tube endcap screws or HV cable nuts
See Figure 3-12
Collimator
Skin guards
See Figure 3-13
Column
Scroll support rivets
See Figure 3-14
Bin
Screw used for mounting strain relief of wired handswitch cable
See Figure 3-15
Tube latch
Tube latch on top cover
See Figure 3-16
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