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  #71  
Old 31-07-2017, 11:04 PM
Puddin15 Puddin15 is offline
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Default Re: Mazdaspeed 3

Hi Richard,

Just a quick clarification. For the gain trimmer, counter-clockwise rotation results in a larger/steeper slope per the figure correct?
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  #72  
Old 02-08-2017, 06:44 AM
Richard L Richard L is offline
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Default Re: Mazdaspeed 3

incorrect. it is clockwise. How did you arrive at this conclusion?
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  #73  
Old 02-08-2017, 03:11 PM
Puddin15 Puddin15 is offline
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Default Re: Mazdaspeed 3

Quote:
Originally Posted by Richard L View Post
incorrect. it is clockwise. How did you arrive at this conclusion?
Hi Richard,

I interpreted the figure on page 13 of the HFS4 v 3.1 manual as CW = a decrease in slope while CCW = an increase in slope. It doesn't actually state in the description of GAIN which direction is an increase or decrease in slope.
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  #74  
Old 03-08-2017, 07:52 AM
Richard L Richard L is offline
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Default Re: Mazdaspeed 3

You are the only person that interpreted the diagram this way. Majority of people would rotate the volume control clockwise to increase loudness on an PA system.

The manual text (v3.1) doesn't say CW or CCW on page 13. The figure is correct, but the direction of arrows does not represent the trimmers. It is related to the two slopes lines.


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  #75  
Old 07-08-2017, 04:57 PM
Puddin15 Puddin15 is offline
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Default Re: Mazdaspeed 3

Hi Richard,

Question on the fail-safe. I've noticed on the under range setting the "B" LED will blink when the flow is below the WL setting, and then will stay on once the flow is within the fail-safe window.

However when the "B" LED is blinking, I do not see the two fail-safe activation LED's illuminate. I take it this is normal? If so, what would cause the WL setting to actually trigger both fail-safe activation LED's?
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  #76  
Old 08-08-2017, 08:00 AM
Richard L Richard L is offline
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Default Re: Mazdaspeed 3

when the "B" LED is blinking, this is the moment the system has to decide whether to active the failsafe or not. The "FSDL" trimmer delays this decision.

When this happens, dial back the WL or WH accordingly to stop the blinking.
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  #77  
Old 08-08-2017, 06:31 PM
Puddin15 Puddin15 is offline
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Default Re: Mazdaspeed 3

Thanks Richard. One thing I have noticed is the "B" LED can blink for a few seconds without activating the failsafe. Is this normal?

I take it activating the failsafe is not strictly based upon the amount of time the system senses it is outside the correct flow window?
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  #78  
Old 09-08-2017, 07:01 AM
Richard L Richard L is offline
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Default Re: Mazdaspeed 3

blinking means it is on the verge of activating the failsafe. a click or so C-CW on the WL or CW on the WH trimmer will alleviate this issue. It is quite normal. It does matter how matter time it blinks. The system just reacts to the duty cycle % ratio of the blink.
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  #79  
Old 28-08-2017, 07:58 PM
Puddin15 Puddin15 is offline
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Default Re: Mazdaspeed 3

Hi Richard,

I noticed a strange issue today while driving. The yellow "W. Injection" LED stays partially lit when there is no flow, but goes away when there is flow. The "Water Level" light does not come on at the same time and the system is not tripping when the "W. Injection" LED is on. Everything other than the LED appears to be working completely normal. Any clue what would cause this and should I be concerned?

Last edited by Puddin15; 29-08-2017 at 04:16 AM.
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  #80  
Old 29-08-2017, 07:39 AM
Richard L Richard L is offline
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Default Re: Mazdaspeed 3

I would't be concerned with this, it will not affect the workings of the system. A small part of the circuity is sensitive to moist air condensing on the circuit board surface.

You can send the gauge back for us to fix this, no charge but you have to pay the shipping.
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