We have Ct-scan mx8000 4-slice there are problem with temperature the is message appear:-
Gantry temperature exceeds operating limit!
Please make sure scanner room temperature remains below 28 deg. C (82.4deg. F).
Call service engineer if temperature is actually within operating
The temperature inside the scan room is 20 deg !!!
so the date in service ==> temperature is
Gantry- temp 34
Gantry-Humidity 24
Inlet_water temp 18
Gradle-Temp 34 in red color!!!
DMS-Left 34 in red color!!
DMS-Right 34 in read color!!
Tube-H.U 24
and date in read color!!!
any help please ???
I have service manual for the system but not helpful !!!
First, check the Heat Exchanger Module. See if it´s running. Inside the module, there is a Board with leds. Check there is NO an ambar led blinking on "error".
Second, check the pressure. If is below of 2 bar, you MUST purge and refill.
If your Heat Exchenger is Water-Water kind type, check the Chiller is working.
Then, check the FANS inside the Gantry. There are 3 fans with thier Heat Exchanger (Two at the botton of the Gantry and one on the right top).
If everything is OK, It could be the fans inside the DMS.
Good luck!
thanks for help
the Led status is L1 is blinking
L3 is off
l4 blinking slow
L5 is on
L7 is off
K1 is on
k2 is off
K3 is on
pressure is 2 Bar
Chiller is 12 C
Fan inside gntry is all ok include DMS 2 fan
You need to replace the DMS Temperature Sensor.
Shutdown the System Completly.
Open the Gantry front door.
Place the DMS at 12´o clock. (Always CW).
Put the Secure Pin to avoid rotation.
Take out the 5 allen of the DMS Cover (I think are 5mm).
Unplug the 3 cables (1 at the RCOM, 1 at the right of the DMS and the temperature cable sensor at the left).
Gently pull out the DMS Cover.
The sensors al located inside the DMS Cover, so, turn the DMS Cover back, y you will see the boards at the edges (P1 and P2).
Follow back the steps to install everything.
Finally, you can use CANPro to test the Temperature Tables and sensors. If not, just turn everything on and try to warm up.
Good luck!
Ok, you must perform and air calibration. If the problem persist, perform a phantom calibration and a DFS calibration.
All this must correct the ring artifacts and the density problem. If not, do a HCOR.
Good luck!
What configuration of WCS you? Water-water, water-to-air?
-Check that the water pressure is at 2.0 BAR
-Check the operation of the pump.
-What led L7 tab WCC is turned off if it is not try to enable the pump in service to see if it works.
-Check that 3-way valves are working has a 2 in the left side of the gantry and the WCS. > Attention to 550 VDC (try to electrically disconnect the valves and open them manually valves with a hexagonal key if has no knobs)
-Check the operation of the fans behind the radiator in the gantry
-Check that the circuit breakers on the left side of gantry are on (near the MCU board)
thanks for help
the pressure is 2 Bar
pump is working
L7 is off
about the 3-way valves i try to disconnect it and open it but when i reconnect it's work automatic!!
circuit breakers all is on
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sarmad hana
CT-MX8000 problem
January 27, 2013 06:24
Hi all
We have Ct-scan mx8000 4-slice there are problem with temperature the is message appear:-
Gantry temperature exceeds operating limit!
Please make sure scanner room temperature remains below 28 deg. C (82.4deg. F).
Call service engineer if temperature is actually within operating
The temperature inside the scan room is 20 deg !!!
so the date in service ==> temperature is
Gantry- temp 34
Gantry-Humidity 24
Inlet_water temp 18
Gradle-Temp 34 in red color!!!
DMS-Left 34 in red color!!
DMS-Right 34 in read color!!
Tube-H.U 24
and date in read color!!!
any help please ???
I have service manual for the system but not helpful !!!
Thanks
Eng sarmad hana
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Iftikhar Khan
re: CT-MX8000 problem
January 27, 2013 11:36
The system measures temperature inside the gantry, not in room. Either your chiller, or pump inside the cooling cabinet is not running.
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Dr. Yanicura Aguilera
re: CT-MX8000 problem
January 28, 2013 09:18
Can you send me a copy of software MX 8000, please? dr.vascoy@hotmail.com
Best Regards
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Gustavo Volpi
re: CT-MX8000 problem
January 28, 2013 05:36
First, check the Heat Exchanger Module. See if it´s running. Inside the module, there is a Board with leds. Check there is NO an ambar led blinking on "error".
Second, check the pressure. If is below of 2 bar, you MUST purge and refill.
If your Heat Exchenger is Water-Water kind type, check the Chiller is working.
Then, check the FANS inside the Gantry. There are 3 fans with thier Heat Exchanger (Two at the botton of the Gantry and one on the right top).
If everything is OK, It could be the fans inside the DMS.
Good luck!
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sarmad hana
re: re: CT-MX8000 problem
January 29, 2013 05:02
thanks for help
the Led status is L1 is blinking
L3 is off
l4 blinking slow
L5 is on
L7 is off
K1 is on
k2 is off
K3 is on
pressure is 2 Bar
Chiller is 12 C
Fan inside gntry is all ok include DMS 2 fan
any help??
i wait replay thnks
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Gustavo Volpi
re: re: re: CT-MX8000 problem
January 29, 2013 09:39
You need to replace the DMS Temperature Sensor.
Shutdown the System Completly.
Open the Gantry front door.
Place the DMS at 12´o clock. (Always CW).
Put the Secure Pin to avoid rotation.
Take out the 5 allen of the DMS Cover (I think are 5mm).
Unplug the 3 cables (1 at the RCOM, 1 at the right of the DMS and the temperature cable sensor at the left).
Gently pull out the DMS Cover.
The sensors al located inside the DMS Cover, so, turn the DMS Cover back, y you will see the boards at the edges (P1 and P2).
Follow back the steps to install everything.
Finally, you can use CANPro to test the Temperature Tables and sensors. If not, just turn everything on and try to warm up.
Good luck!
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sarmad hana
re: re: CT-MX8000 problem
February 02, 2013 11:25
Dear Sir
thanks
the problem was solved (we replaced temp switch off board in detector cover)
now there are tow problem
first problem Density is is incorrect
second vertical line artifact in image in surview scan!! and ring artifact in spiral scan!!
Thanks
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Gustavo Volpi
re: re: re: CT-MX8000 problem
February 03, 2013 11:12
Ok, you must perform and air calibration. If the problem persist, perform a phantom calibration and a DFS calibration.
All this must correct the ring artifacts and the density problem. If not, do a HCOR.
Good luck!
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MRAdmin
re: CT-MX8000 problem
January 28, 2013 05:36
where are you from?
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Francesco Palmieri
re: CT-MX8000 problem
January 28, 2013 05:55
What configuration of WCS you? Water-water, water-to-air?
-Check that the water pressure is at 2.0 BAR
-Check the operation of the pump.
-What led L7 tab WCC is turned off if it is not try to enable the pump in service to see if it works.
-Check that 3-way valves are working has a 2 in the left side of the gantry and the WCS. > Attention to 550 VDC (try to electrically disconnect the valves and open them manually valves with a hexagonal key if has no knobs)
-Check the operation of the fans behind the radiator in the gantry
-Check that the circuit breakers on the left side of gantry are on (near the MCU board)
contact me after all these checks.
good luck
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sarmad hana
re: re: CT-MX8000 problem
January 29, 2013 05:02
Dear Mr.Francesco Palmieri
thanks for help
the pressure is 2 Bar
pump is working
L7 is off
about the 3-way valves i try to disconnect it and open it but when i reconnect it's work automatic!!
circuit breakers all is on
i Wait your replay
thanks
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Francesco Palmieri
re: re: re: CT-MX8000 problem
January 29, 2013 09:39
Hello.
it seems that everything is ok.
For me you can leave disconnected valves 3way and April both for a while and see if the temperatures drop
What WCS has your machine (water-water or water-air)?
Try to measure the temperature of water entering the gantry with a thermometer or touch the tubes with your hands and make sure they are cold
The temperatures that have reported are good with the exception of the DMS, must be between 22/32 ° C
If temperatures drop with the 3-way valve closed (that moves the water) you should not connect again.
expect its positive news
best regards.
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sarmad hana
re: re: CT-MX8000 problem
February 02, 2013 11:25
Dear Sir
thanks
the problem was solved (we replaced temp switch off board in detector cover)
now there are tow problem
first problem Density is is incorrect
second vertical line artifact in image in surview scan!! and ring artifact in spiral scan!!
Thanks
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Alexander Perez
re: CT-MX8000 problem
January 29, 2013 09:12
Verify that you have correct water pressure to the xray tube gage should be a 2 psi
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sarmad hana
re: CT-MX8000 problem
February 02, 2013 11:24
Dear Sir
thanks
the problem was solved (we replaced temp switch off board in detector cover)
now there are tow problem
first problem Density is is incorrect
second vertical line artifact in image in surview scan!! and ring artifact in spiral scan!!
Thanks
to rate and post a comment
Francesco Palmieri
re: re: CT-MX8000 problem
February 03, 2013 11:11
great,
you have a defective channel or CAM
the line is thin or wide?
you can send me pictures of the artifacts?
francesco.palmieri86@gmail.com
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