SERVICE MANUAL
Checkout and adjustment
RTG PLUS (120V) (Rev. 0)
7-12
7.3.1
7.3.17.3.1
7.3.1
Check of line voltage regulation
Check of line voltage regulationCheck of line voltage regulation
Check of line voltage regulation
WARNING:
The following test implies X-ray emission; please follow all measures
envisaged by local safety regulations.
The system is qualified to operate with a maximum line voltage
regulation of 3% at 108V, which is the line voltage generating the highest
current draw from the line.
Check of line regulation: a proper installation has to make sure that the
line provided in the facility where the device is being installed, meets the
requirement of line voltage regulation. In order to carry out this test
proceed as follows:
1. Using a true RMS Voltmeter asses the line voltage value under no
load condition (Vn).
2. Select a timer setting of 2 seconds and make an exposure.
3. Using the same RMS Voltmeter, read the line voltage during
exposure which is the under load condition (Vi).
4. Calculate line voltage regulation as: ((Vn-Vi)/Vi)x100. To make
absolutely sure that the line meets the requirement independently
from possible drift of the line voltage during life of the equipment the
measured line voltage regulation must be smaller than 2.4%.
5. In case line voltage regulation does not meet the spec, refer to
paragraph 5.1 of this manual and consult with a certified electrician
or the local Power Company.
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