Sensor Flickering

Hans.Hinrichsen — Tue, 04 Oct 2011 22:09:19 GMT

Current revision posted to ETC Product Wiki by Hans.Hinrichsen on 10/4/2011 5:09:19 PM

Sensor Flickering

Filed under: CEM, Sensor+, Sensor, Sensor Rack, Sensor+

There are a number of issues that can appear as "flickering" in a Sensor dimmer rack.

Airflow issues are a common reason that all dimmers in a rack might flicker together: [[products:Sensor Dimmer Rack Flickering Due to Airflow Issues|Sensor Dimmer Rack Flickering Due to Airflow Issues]]
DMX problems might cause all dimmers in all racks to flicker sporadically. This flicker will usually "pop around" with different dimmers blinking at different rates and times.
Power problems might cause all dimmers in all racks to flicker together or for dimmers powered from a specific phase of power to have issues across all racks, while the remaining dimmers behave normally.

If these things do not seem to describe the issue, contact ETC Technical Services.

Sensor Flickering

Tracy.Fitch — Sat, 16 Jul 2011 16:34:40 GMT

Revision 8 posted to ETC Product Wiki by Tracy.Fitch on 7/16/2011 11:34:40 AM

Sensor Flickering

Filed under: CEM, Sensor+, Sensor, Sensor Rack

Question:

Seeing flickering

There are a number of issues that can appear as "flickering" in a Sensor dimmer rack.Could this be due to an airflow problem?

Answer

Airflow issues are a common reason that all dimmers in a rack might flicker together: [[products:Sensor Dimmer Rack Flickering Due to Airflow Issues|Sensor Dimmer Rack Flickering Due to Airflow Issues]]

Yes it can. The rack can get caught between system ok and airflow error. This can
DMX problems might cause flicker. If all of the dimmers that are active in the rack always all racks to flicker out together, airflow could be a factorsporadically. If they change This flicker will usually "pop around" with different dimmers blinking at different rates or and times, airflow is not a likely culprit.

A few things that can be done to fix the problem:

Verify that there is nothing obstructing the fan(s) (on the top of installation racks; on the back of portable packs; on the bottom of touring

Power problems might cause all dimmers in all racks ) to flicker together or blocking outgoing airflow.

Open the front door and remove the black filter. Ensure that it is clean and fairly dust free. If it is not, clean it. If water is used during cleaning, do not reinstall into the rack unless completely dry.

If on a CEM Classic:

At the CEM press and hold the clear button for 5 seconds. This will clear the error.

If on a CEM+:

At the CEM+ press [-] until you see "Press Enter to view rack errors" displayed on the LCD.

Press [checkmark] to enter.

When the errors are displayed, press [checkmark] to clear each one.

Repeat until all errors are cleared.

Check back later and see if the error has returned.

If the issue returns, try blowing out the control module using canned compressed air by the following instructions:

Turn off power to the rack. This is most commonly accomplished by finding a labeled electrical disconnect nearby and pulling the handle to the off position.

Remove the control module dimmers powered from the rack:

On a CEM Classic, slide out the center tab. Grasp with the thumbs and forefingers of both hands and wiggle the module out toward the front of the rack.

On a CEM+, gently push on the latch at the bottom of the rack where the triangle indicates. Hook a finger into the handle once it extends from the rack and wiggle the module out toward the front specific phase of the rack.

While wearing safety glasses and following power to have issues across all safety procedures detailed by the canned air manufacturerracks, use canned compressed air (like that often used for computer maintenance) to blow dust off of the circuit boards and out of the module. Pay specific attention to the front right side since the airflow sensor is located in that area.

Reinstall the control module into the rack with firm pressure.

Re-power while the rack.

Clear out any errors as detailed above for your appropriate control moduleremaining dimmers behave normally.

If these things do not seem to correct describe the problemissue, contact ETC Technical Services.

Sensor Flickering

Tracy.Fitch — Sat, 16 Jul 2011 16:24:11 GMT
Revision 7 posted to ETC Product Wiki by Tracy.Fitch on 7/16/2011 11:24:11 AM

Sensor Flickering

Filed under: CEM, Sensor+, Sensor, Sensor Rack

Question:

Seeing flickering in a rack. Could this be due to an airflow problem?

Answer:

[[products:Sensor Dimmer Rack Flickering Due to Airflow Issues|Sensor Dimmer Rack Flickering Due to Airflow Issues]]

Yes it can. The rack can get caught between system ok and airflow error. This can cause flicker. If all of the dimmers that are active in the rack always flicker out together, airflow could be a factor. If they change at different rates or times, airflow is not a likely culprit.

A few things that can be done to fix the problem:

Verify that there is nothing obstructing the fan(s) (on the top of installation racks; on the back of portable packs; on the bottom of touring racks) or blocking outgoing airflow.

Open the front door and remove the black filter. Ensure that it is clean and fairly dust free. If it is not, clean it. If water is used during cleaning, do not reinstall into the rack unless completely dry.

If on a CEM Classic:

At the CEM press and hold the clear button for 5 seconds. This will clear the error.

If on a CEM+:

At the CEM+ press [-] until you see "Press Enter to view rack errors" displayed on the LCD.

Press [checkmark] to enter.

When the errors are displayed, press [checkmark] to clear each one.

Repeat until all errors are cleared.

Check back later and see if the error has returned.

If the issue returns, try blowing out the control module using canned compressed air by the following instructions:

Turn off power to the rack. This is most commonly accomplished by finding a labeled electrical disconnect nearby and pulling the handle to the off position.

Remove the control module from the rack:

On a CEM Classic, slide out the center tab. Grasp with the thumbs and forefingers of both hands and wiggle the module out toward the front of the rack.

On a CEM+, gently push on the latch at the bottom of the rack where the triangle indicates. Hook a finger into the handle once it extends from the rack and wiggle the module out toward the front of the rack.

While wearing safety glasses and following all safety procedures detailed by the canned air manufacturer, use canned compressed air (like that often used for computer maintenance) to blow dust off of the circuit boards and out of the module. Pay specific attention to the front right side since the airflow sensor is located in that area.

Reinstall the control module into the rack with firm pressure.

Re-power the rack.

Clear out any errors as detailed above for your appropriate control module.

If these things do not seem to correct the problem, contact ETC Technical Services.

Sensor Flickering

Tracy.Fitch — Sat, 16 Jul 2011 16:19:23 GMT
Revision 6 posted to ETC Product Wiki by Tracy.Fitch on 7/16/2011 11:19:23 AM

Sensor Flickering

Filed under: CEM, Sensor+, Sensor, Sensor Rack

Question:

Seeing flickering in a rack. Could this be due to an airflow problem?

Answer:

Yes it can. The rack can get caught between system ok and airflow error. This can cause flicker. If all of the dimmers that are active in the rack always flicker out together, airflow could be a factor. If they change at different rates or times, airflow is not a likely culprit.

A few things that can be done to fix the problem:

Verify that there is nothing obstructing the fan(s) (on the top of installation racks; on the back of portable packs; on the bottom of touring racks) or blocking outgoing airflow.

Open the front door and remove the black filter. Ensure that it is clean and fairly dust free. If it is not, clean it. If water is used during cleaning, do not reinstall into the rack unless completely dry.

If on a CEM Classic:

At the CEM press and hold the clear button for 5 seconds. This will clear the error.

If on a CEM+:

At the CEM+ press [-] until you see "Press Enter to view rack errors" displayed on the LCD.

Press [checkmark] to enter.

When the errors are displayed, press [checkmark] to clear each one.

Repeat until all errors are cleared.

Check back later and see if the error has returned.

If the issue returns, try blowing out the control module using canned compressed air by the following instructions:

Turn off power to the rack. This is most commonly accomplished by finding a labeled electrical disconnect nearby and pulling the handle to the off position.

Remove the control module from the rack:

On a CEM Classic, slide out the center tab. Grasp with the thumbs and forefingers of both hands and wiggle the module out toward the front of the rack.

On a CEM+, gently push on the latch at the bottom of the rack where the triangle indicates. Hook a finger into the handle once it extends from the rack and wiggle the module out toward the front of the rack.

While wearing safety glasses and following all safety procedures detailed by the canned air manufacturer, use canned compressed air (like that often used for computer maintenance) to blow dust off of the circuit boards and out of the module. Pay specific attention to the front right side since the airflow sensor is located in that area.

Reinstall the control module into the rack with firm pressure.

Re-power the rack.

Clear out any errors as detailed above for your appropriate control module.

If these things do not seem to correct the problemconnect , contact ETC Technical SupportServices.

Sensor Flickering

Tracy.Fitch — Sat, 16 Jul 2011 16:18:20 GMT
Revision 5 posted to ETC Product Wiki by Tracy.Fitch on 7/16/2011 11:18:20 AM

Sensor Flickering

Filed under: CEM, Sensor+, Sensor, Sensor Rack

Question:

Seeing flickering in a rack. Could this be due to an airflow problem?

Answer:

Yes it can. The rack can get caught between system ok and airflow error. This can cause flicker. If all of the dimmers that are active in the rack always flicker out together, airflow could be a factor. If they change at different rates or times, airflow is not a likely culprit.

A few things that can be done to fix the problem:

Verify that there is nothing obstructing the fan(s) (on the top of installation racks; on the back of portable packs; on the bottom of touring racks) or blocking outgoing airflow.

Open the front door and remove the black filter. Ensure that it is clean and fairly dust free. If it is not, clean it. If water is used during cleaning, do not reinstall into the rack unless completely dry.

If on a CEM Classic:

At the CEM press and hold the clear button for 5 seconds. This will clear the error.

If on a CEM+:

At the CEM+ press [-] until you see "Press Enter to view rack errors" displayed on the LCD.

Press [checkmark] to enter.

When the errors are displayed, press [checkmark] to clear each one.

Repeat until all errors are cleared.

Check back later and see if the error has returned.

If the issue returns, try blowing out the control module using canned compressed air by the following instructions:

Turn off power to the rack. This is most commonly accomplished by finding a labeled electrical disconnect nearby and pulling the handle to the off position.

Remove the control module from the rack:

On a CEM Classic, slide out the center tab. Grasp with the thumbs and forefingers of both hands and wiggle the module out toward the front of the rack.

On a CEM+, gently push on the latch at the bottom of the rack where the triangle indicates. Hook a finger into the handle once it extends from the rack and wiggle the module out toward the front of the rack.

While wearing safety glasses and following all safety procedures detailed by the canned air manufacturer, use canned compressed air (like that often used for computer maintenance) to blow dust out of the module. Pay specific attention to the front right side since the airflow sensor is located in that area.

Reinstall the control module into the rack with firm pressure.

Repower

Re-power the rack.

Clear out any errors as detailed above for your appropriate control module.

If these things do not seem to correct the problem connect ETC Technical Support

Sensor Flickering

Tracy.Fitch — Sat, 16 Jul 2011 16:17:48 GMT
Revision 4 posted to ETC Product Wiki by Tracy.Fitch on 7/16/2011 11:17:48 AM

Sensor flickeringFlickering

Filed under: CEM, Sensor+, Sensor, Sensor Rack

Question:

Seeing flickering in a rack. Could this be due to an airflow problem?

Answer:

Yes it can. The rack can get caught between system ok and airflow error. This can cause flicker. If all of the dimmers that are active in the rack always flicker out together, airflow could be a factor. If they change at different rates or times, airflow is not a likely culprit.

A few things that can be done to fix the problem:

Verify that there is nothing obstructing the fan(s) (on the top of installation racks; on the back of portable packs; on the bottom of touring racks) or blocking outgoing airflow.

Open the front door and remove the black filter. Ensure that it is clean and fairly dust free. If it is not, clean it. If water is used during cleaning, do not reinstall into the rack unless completely dry.

If on a CEM Classic:

At the CEM press and hold the clear button for 5 seconds. This will clear the error.

If on a CEM+:

At the CEM+ press [-] until you see "Press Enter to view rack errors" displayed on the LCD.

Press [checkmark] to enter.

When the errors are displayed, press [checkmark] to clear each one.

Repeat until all errors are cleared.

Check back later and see if the error has returned.

If the issue returns, try blowing out the control module using canned compressed air by the following instructions:

Turn off power to the rack. This is most commonly accomplished by finding a labeled electrical disconnect nearby and pulling the handle to the off position.

Remove the control module from the rack:

On a CEM Classic, slide out the center tab. Grasp with the thumbs and forefingers of both hands and wiggle the module out toward the front of the rack.

On a CEM+, gently push on the latch at the bottom of the rack where the triangle indicates. Hook a finger into the handle once it extends from the rack and wiggle the module out toward the front of the rack.

While wearing safety glasses and following all safety procedures detailed by the canned air manufacturer, use canned compressed air (like that often used for computer maintenance) to blow dust out of the module. Pay specific attention to the front right side since the airflow sensor is located in that area.

Reinstall the control module into the rack with firm pressure.

Repower the rack

Clear out any errors as detailed above for your appropriate control module.

If these things do not seem to correct the problem connect ETC Technical Support

Sensor flickering

Tracy.Fitch — Sat, 16 Jul 2011 16:02:00 GMT
Revision 3 posted to ETC Product Wiki by Tracy.Fitch on 7/16/2011 11:02:00 AM

Sensor flickering

Filed under: CEM, Sensor+, Sensor, Sensor Rack

Question:

Seeing flickering in a rack. Could this be due to an airflow problem?

Answer:

Yes it can. The rack can get caught between system ok and airflow error. This can cause flicker. If all of the dimmers that are active in the rack always flicker out together, airflow could be a factor. If they change at different rates or times, airflow is not a likely culprit.

A few things that can be done to fix the problem:

Verify that there is nothing obstructing the fan fan(s) (on the top of installation racks; on the rackback of portable packs; on the bottom of touring racks) or blocking outgoing airflow.

Open the front door and remove the black filter. Ensure that it is clean and fairly dust free. If it is not, clean it. If water is used during cleaning, do not reinstall into the rack unless completely dry.

If on a CEM Classic:

At the CEM press and hold the clear button for 5 seconds. This will clear the error.

If on a CEM+:

At the CEM+ press [-] until you see "Press Enter to view rack errors" displayed on the LCD.

Press [checkmark] to enter.

When the errors are displayed, press [checkmark] to clear each one.

Repeat until all errors are cleared.

Check back later and see if the error has returned.

If the issue returns, try blowing out the control module using canned compressed air by the following instructions:

Turn off power to the rack. This is most commonly accomplished by finding a labeled electrical disconnect nearby and pulling the handle to the off position.

Remove the control module from the rack:

On a CEM Classic, slide out the center tab. Grasp with the thumbs and forefingers of both hands and wiggle the module out toward the front of the rack.

On a CEM+, gently push on the latch at the bottom of the rack where the triangle indicates. Hook a finger into the handle once it extends from the rack and wiggle the module out toward the front of the rack.

While wearing safety glasses and following all safety procedures detailed by the canned air manufacturer, use canned compressed air (like that often used for computer maintenance) to blow dust out of the module. Pay specific attention to the front right side since the airflow sensor is located in that area.

Reinstall the control module into the rack with firm pressure.

Repower the rack

Clear out any errors as detailed above for your appropriate control module.

If these things do not seem to correct the problem connect ETC Technical Support

Sensor flickering

Tracy.Fitch — Sat, 16 Jul 2011 15:35:30 GMT
Revision 2 posted to ETC Product Wiki by Tracy.Fitch on 7/16/2011 10:35:30 AM

Sensor flickering

Filed under: CEM, Sensor+, Sensor, Sensor Rack

Question:

Seeing flickering in a rack. Could this be due to an airflow problem?

Answer:

Yes it can. The rack can get caught between system ok and airflow error. This can cause flicker.

A few things that can be done to fix the problem:

Verify that there is nothing obstructing the fan on the top of the rack.

Open the front door and remove the black filter. Ensure that it is clean and fairly dust free. If it is not, clean it. If water is used during cleaning, do not reinstall into the rack unless completely dry.

If on a CEM Classic:

At the CEM press and hold the clear button for 5 seconds. This will clear the error.

Check back later and see if the error has returned.

If neither of these things do not seem to correct the problem connect ETC Technical Support

Sensor flickering

Kelsey Aleckson — Thu, 22 Jul 2010 15:47:12 GMT
Revision 1 posted to ETC Product Wiki by Kelsey Aleckson on 7/22/2010 10:47:12 AM

Question:

Seeing flickering in a rack. Could this be due to an airflow problem?

Answer:

Yes it can. The rack can get caught between system ok and airflow error. This can cause flicker.

A few things that can be done to fix the problem:

Open the front door and remove the black filter. Ensure that it is clean and fairly dust free.

At the CEM press and hold the clear button for 5 seconds. This will clear the error.

Check back later and see if the error has returned.

If neither of these things seem to correct the problem connect ETC Technical Support