---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sun 06/25/17: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:31 AM - Re: Re: Kx 170 b radio, ki211c indicator no power to ki 211c pin a (Robert L. Nuckolls, III) 2. 09:17 AM - Re: Re: Kx 170 b radio, ki211c indicator no power to ki 211c pin a (David A. Leonard) 3. 01:44 PM - David Clarke / SoftComm system for sale (Robert L. Nuckolls, III) 4. 01:44 PM - Re: Re: Kx 170 b radio, ki211c indicator no power to ki 211c pin a (Robert L. Nuckolls, III) 5. 03:23 PM - Enclosure For Batt Contactor and Bus Tie (William Hunter) 6. 03:44 PM - Did I Fry My Optima Battery?!?!? (William Hunter) 7. 06:44 PM - SOLD David Clarke / SoftComm system for sale SOLD (Robert L. Nuckolls, III) 8. 07:36 PM - Re: Did I Fry My Optima Battery?!?!? (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 04:31:09 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Kx 170 b radio, ki211c indicator no power to ki 211c pin a At 04:56 PM 6/24/2017, you wrote: >Hi guys, been away from flying a while, and >airplane mode and N77FE is a bit pissed off at beong ignored. > >Cant get my cdi to power up. > >I tried both my kx 170b and michel mx 170 in the >tray. =C2 =C2 I pulled the cdi and the connector >was loose, so fixed that.=C2 Probed for power. >=C2 Pin c on ki 211 is supposed to be 13.75 v >input, no power there w nav radio on. =C2 I do >get gs energize power at pin p when tuned to gs freq. =C2 =C2 > >=C2 Pin 26 is power out from tray, probed from >there to connector end of cdi connector pin c >and wire is connected. Continuity is solid. > >Does the tray connector jumper power to the cdi, >or does the radio switch it?=C2 Im kinda baffled. =C2 > >Page 2-13 shows what i think I have. =C2 > >Thanks, Dave Leonard Super viking N77FE > >https ://www.google.com/url?sa=t&source=web&rct=j&url=http://www.aeroelect ric.com/Installation_Data/Bendix-King/KX175B_IM.pdf&ved=0ahUKEwiSucHOuNfUA hWp64MKHfcCBQ0QFggdMAA&usg=AFQjCNEMWUD78gQVdc-xgRjp70uLbwJ1bA The label "NAV SWITCHED 13.75VDC" says that this is indeed a power output pin controlled by the nav receiver's power switch. There is a Note 7 associated with this path: Emacs! . . . which tells us that this ouput is limited to 300 ma. Probing this pathway with the voltmeter should show bus voltage with the nav radio ON. This power comes from the radio and is switched internally to the radio. If the power is missing on TWO radios, then it seems likely that the disconnect is somewhere in the ship's wiring. Bob . . . ________________________________ Message 2 _____________________________________ Time: 09:17:17 AM PST US From: "David A. Leonard" Subject: Re: AeroElectric-List: Re: Kx 170 b radio, ki211c indicator no power to ki 211c pin a Thanks Bob, that is where I was heading. But it seems odd that the wire pins to tray buzz on the ohmeter. Must be doing something wrong. Virus-free. www.avast.com <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Sun, Jun 25, 2017 at 7:30 AM, Robert L. Nuckolls, III < nuckolls.bob@aeroelectric.com> wrote: > At 04:56 PM 6/24/2017, you wrote: > > Hi guys, been away from flying a while, and airplane mode and N77FE is a > bit pissed off at beong ignored. > > Cant get my cdi to power up. > > I tried both my kx 170b and michel mx 170 in the tray. =C3=82 =C3=82 I p ulled the > cdi and the connector was loose, so fixed that.=C3=82 Probed for power. =C3=82 Pin > c on ki 211 is supposed to be 13.75 v input, no power there w nav radio o n. > =C3=82 I do get gs energize power at pin p when tuned to gs freq. =C3=82 =C3=82 > > =C3=82 Pin 26 is power out from tray, probed from there to connector end of cdi > connector pin c and wire is connected. Continuity is solid. > > Does the tray connector jumper power to the cdi, or does the radio switch > it?=C3=82 Im kinda baffled. =C3=82 > > Page 2-13 shows what i think I have. =C3=82 > > Thanks, Dave Leonard Super viking N77FE > > https://www.google.com/url?sa=t&source=web&rct=j&url=http:// > www.aeroelectric.com/Installation_Data/Bendix-King/KX175B_IM.pdf&ved > 0ahUKEwiSucHOuNfUAhWp64MKHfcCBQ0QFggdMAA&usg=AFQjCNEMWUD78gQVdc- > xgRjp70uLbwJ1bA > > > The label "NAV SWITCHED 13.75VDC" says that this is > indeed a power output pin controlled by the nav receiver's > power switch. There is a Note 7 associated with this > path: > > > [image: Emacs!] > . . . which tells us that this ouput is limited > to 300 ma. > > Probing this pathway with the voltmeter should show > bus voltage with the nav radio ON. This power > comes from the radio and is switched internally > to the radio. If the power is missing on TWO > radios, then it seems likely that the disconnect > is somewhere in the ship's wiring. > > > Bob . . . > ________________________________ Message 3 _____________________________________ Time: 01:44:55 PM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: David Clarke / SoftComm system for sale A further reduction in inventory dictates that I give up one of my two-station head-set/intercomm systems. I have the following to offer first to members of the List: DC H10-30 headset (mono) with new gel pads installed DC H10-13x headset (stereo with active noise reduction) with new gel pads installed. SoftComm ACT-2T two station, portable intercomm (one of my favorites). Control Yoke press to talk cable. Offer includes a zippered carry-bag (not shown) that holds one head-set, intercom and cordage. Cordage and general appearance is very good. New batteries installed. ANR box modified for more robust battery configuration (no spring-loaded holders). Will ship with two extra, alkaline battery sets. See at: http://tinyurl.com/yapnz577 Asking $300 for the system. If no takers over the next few days, I'll split the offer into component parts. Email me directly please. Bob . . . ________________________________ Message 4 _____________________________________ Time: 01:44:55 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Kx 170 b radio, ki211c indicator no power to ki 211c pin a At 11:16 AM 6/25/2017, you wrote: >Thanks Bob, that is where I was heading.=C2 But >it seems odd that the wire pins to tray buzz on >the ohmeter.=C2 Must be doing something wrong. =C2 =C2 Connectors captive to a slide-in tray can be problematic. You may be wrestling with a pin engagement issue . . . and if one path is coming up short, then there may be more. Bob . . . ________________________________ Message 5 _____________________________________ Time: 03:23:21 PM PST US From: "William Hunter" Subject: AeroElectric-List: Enclosure For Batt Contactor and Bus Tie Hi All, I am installing a bus tie contactor and a battery contactor in an "enclosure" under the rear seat of a composite airplane and I am concerned about the heat produced by these two devices. This enclosure is a "box" of sorts that is constructed with foam core composite material (good insulation properties) and the space is kinda small (about 20" X 10" X 4") and it will not have any airflow whatsoever so I am wondering how hot these two units could get when energized in this enclosed location. I do not intend to have the bus tie closed during flight so when airborne only the battery contactor will be energized however during ground operations I do intend on having both the bus tie and the battery tie closed for maintenance purposes. I have already had them both humming however I have not yet closed the lid to this box. If need be I could construct some kind of cooling air scoop however I would prefer to keep the box fully enclosed.IF.there would not be a fire hazard. THANKS for your feedback and advice. .. Cheers!!! Bill Hunter ________________________________ Message 6 _____________________________________ Time: 03:44:58 PM PST US From: "William Hunter" Subject: AeroElectric-List: Did I Fry My Optima Battery?!?!? So.I left my battery charger connected to an Optima battery overnight on the 10 Amp charge position. In the immortal words of Homer Simpson "!!!DOH!!!" The Optima battery can be installed in any position other than upside down and my battery was installed on its side. Well in the morning, I noticed that clear liquid was leaking out of the two small gray ports so I assume that these ports are some kind of vent to release the internal pressure in the instance where some DumbBass left the charger plugged in all night and the battery overheated. I felt the battery was not hot nor even warm however the liquid was definitely dripping out a fair amount. I thought that these things were supposed to be "spill proof" because they are "gel filled". In the past I noticed that when in the battery charger is in the 10 amp position the battery charger only puts out a voltage of about 13.0 volts so I would not have thought that it could cook a battery. How can one (me) determine if the fluid/gel level of an Optima battery is still adequate? I can weigh it and/or I can get it tested at the auto parts store? THANKS for your suggestions/experience/feed back!!! .. Cheers!!! Bill Hunter ________________________________ Message 7 _____________________________________ Time: 06:44:04 PM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: SOLD David Clarke / SoftComm system for sale SOLD At 03:44 PM 6/25/2017, you wrote: >A further reduction in inventory dictates that >I give up one of my two-station head-set/intercomm >systems. The audio system has sold. Thanks to all who inquired! Bob . . . ________________________________ Message 8 _____________________________________ Time: 07:36:20 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Did I Fry My Optima Battery?!?!? At 05:39 PM 6/25/2017, you wrote: >So=85I left my battery charger connected to an >Optima battery overnight on the 10 Amp charge >position. In the immortal words of Homer Simpson =93!!!DOH!!!=94 > >The Optima battery can be installed in any >position other than upside down and my battery >was installed on its side. Well in the morning, >I noticed that clear liquid was leaking out of >the two small gray ports so I assume that these >ports are some kind of vent to release the >internal pressure in the instance where some >DumbBass left the charger plugged in all night and the battery overheated. > >I felt the battery was not hot nor even warm >however the liquid was definitely dripping out a fair amount. > >I thought that these things were supposed to be >=93spill proof=94 because they are =93gel filled=94. In >the past I noticed that when in the battery >charger is in the 10 amp position the battery >charger only puts out a voltage of about 13.0 >volts so I would not have thought that it could cook a battery. The 13.0 volt observation seems valid . . . and certainly not enough snort to cook an SVLA battery. Yet, here we are. I would do a cranking load test on it first. Go to a battery store and have them load it DOWN and HOLD at 9 volts for 15 seconds. At the end of 15 seconds, note the current. A new battery of that genre would probably dump 400-600A. This test will normally consume less than 10% of a battery's snort. Follow up with a cap check. Hook a 55W head lamp to the battery and see how long it runs before the voltage drops below 11.0 volts. Again, for a battery of that ilk, 8 to 10 hours is healthy. After the first test, put it on a known-good charger/maintainer and repeat the test. Now, even if it still performs electrically, I wouldn't recommend using it for anything other than ground ops. It's obviously compromised. Optimas are jelly-roll cells with a rich heritage in AGM development and marketing. I'm a bit surprised that this thing leaked 'juice'. Hmmm . . . found these tid-bits on the 'net http://tinyurl.com/ya7lnv5u http://tinyurl.com/yaxbbaxl http://tinyurl.com/ydbpvo5z http://tinyurl.com/y76kk7q9 Seems your experience is not unheard of . . . What is the brand and model number of your battery charger? I have found, disappointingly, that even the masters of battery chargers stub their toe from time to time. I have a 'beefy' automotive charger by Schumacher I bought at Walmart a few years ago. http://tinyurl.com/y7yrzlyk I was evaluating a battery for Hawker-Beech that was purported to be a new, 'carbon foam' device. The sample I was working with was a 100A.h. group 31 truck battery. Needed something much larger than my usual stable of battery charger-maintainers. This thing was supposed to output charging profiles tailored to flooded, gel and AGM batteries. Got to watch the behavior during a dozen or more recharge cycles on the test battery. Frankly, the behaviors in each mode did not match conventional wisdom. I've still got the charger. Used it on the truck a few weeks ago to mitigate a dome-light-discharge event. But in spite of the claims in literature, I would not use this charger for anything but utility recoveries . . . it's not a 'maintainer' in spite of its apparent used of software. It would be interesting to test your charger with instrumentation to see if it might be responsible for your battery's 'accident'. Bob . . . ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.