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GE Healthcare
Revision 1
Job Card CAL A001 - Heater Current Scale Factor
1
SUPPLIES
None
2
TOOLS
•
Multimeter (Fluke 87)
(e.g.: Fluke 8060).
•
HV unit/cable adaptor
! Notice:
IMPORTANT NOTE: To ensure accurate measurement:
•
For ALL Digital Multimeters: The Autorange function MUST NOT be used, as it can lead to severe
measurement errors (>40%).
•
For ALL Digital Multimeters: The Relative Measurement function MUST NOT be used to reset to zero
the natural offset displayed when there is no current measured. The offset is automatically reset to
zero by the principle of the rms measurement.
•
Measurement configurations to be used are as follows:
-
Fluke 87: no shunt, in the 10 A AC range.
-
Fluke 8060: used with 20 A shunt in the 200 mV AC range (shunt reference: 80J10).
3
REQUIRED EFFORT
Personnel: 1 Field Engineer
Time: 67 minutes
4
SAFETY PRECAUTIONS
CAUTION
In case of equipment breakdown or service engineer error during this calibration proce-
dure, the resulting parameter values might become so unreasonable as to render the X-ray
tube filament supply circuit unusable. This can show up as an error message during
power up, and thus inhibit use of the calibration software. If this happens, the only way to
cancel the error is to manually re-enter the default parameter values (see section
default parameter values), and then switch the Senographe off and back on again before
again attempting a calibration.
5
PREREQUISITES
None
6
CALIBRATION OF HEATER CURRENT SCALE FACTOR
The objective is to determine the scale factor K and fixed offset VOF between the X-ray tube filament
current command from the software and the real filament current value obtained. Each tube track has its
own filament supply circuit, so this calibration procedure is to be performed for each of the two tracks.
DEFAULT PARAMETER VALUES ARE K = +9.450E+0 (9.45) AND VOF = +0.000E+0 (0.0).
JC-CAL-A-001.fm
Service Information and Procedures Class A 2385072-16-8EN
or a multimeter that can operate in true RMS AC ammeter mode
Page no. 1649
Job Card CAL A001 - Heater Current Scale Factor
Senographe DS
Chapter 9
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Chapter 9
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Troubleshooting
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Questions and answers
G.E.Essential l have recently bought What is the full weight.of the mamo Full weight of the console and other İtem's also measurements of each item with the main machine please All this Shipping Company required
The GE Senographe DS mammography machine is shipped in three crates with the following dimensions and weights:
- Crate 1 (Gantry, Generator Cabinet, and ramp):
- Dimensions: 2066 mm (81.34 in) depth × 848 mm (33.39 in) width × 2292 mm (90.24 in) height
- Mass: 641 kg (1410.2 lbs)
- Crate 2 (Control Station):
- Dimensions: 1110 mm (43.70 in) depth × 770 mm (30.31 in) width × 1850 mm (72.83 in) height
- Mass: 210.5 kg (464.07 lbs) for truck transport (without side covers and lid)
- Mass: 223.5 kg (492.73 lbs) for plane/boat transport (with side covers and lid)
- Crate 3 (Detector):
- Dimensions: 872 mm (34.33 in) depth × 2270 mm (89.37 in) width × 260 mm (10.24 in) height
- Mass: 104.4 kg (229.68 lbs)
### Total Mass:
- For truck transport: 641 + 210.5 + 104.4 = 955.9 kg (2104.95 lbs)
- For plane/boat transport: 641 + 223.5 + 104.4 = 968.9 kg (2133.61 lbs)
These values include the gantry, generator cabinet, control station, detector, and all related components.
This answer is automatically generated