|
Grounds already checked. It is my first task these days. Thanks.
Sent from my iPhone 4
Check all gounds for that unit.
Brian Trubee
-----Original Message-----
From: Chris Barber < cbarber@texasattorney.net>
To: Rotary motors in aircraft < flyrotary@lancaironline.net>
Sent: Thu, Feb 9, 2012 2:31 pm
Subject: [FlyRotary] EM2 was one more thing
Well, Murphy must have a corner on my hangar. During a brief engine run today everything was fine. I added a little power to bump the catering nose wheel around and my EM2 lost all it's information and started displaying sporadically flashing rows of blocks
and lines, then occasionally several numeral "5"s. Tried pushing buttons. Cycled circuit breaker. Turned ships Power on and off. No Joy. I still have my Dynon EFIS/monitor but the RWS unit is playing games. The engine is currently running fine. Turned it off
and on as well too
Whoops, now I see "2"'s inside some of the flashing blocks.
Ideas please.
Chris
Sent from my iPhone 4
Tracy,
On the topic of EGT's, I am using your engine monitor in conjunction with my Dynon engine monitor. I has some problems with the RWS EGT reading do I am letting the Dynon monitor the EGT's.
I wrote asking about a way to disable the EGT readings on the RWS monitor. You suggested connecting the EGT leads together. However, this did not work. Any other ideas? I am quite close to flying, I hope so I would prefer not to have to send it in if
possible and may wait till after trying to gly as the Dynon gives redundancy, but obviously does little for tuning.
Thanks.
Chris Barber
Houston
Sent from my iPhone 4
The EGT channels should be pretty accurate over the full range. Less calibration for these is necessary because a temp compensated thermocouple interface chip is used in the EM2/3.
The EGT bar graphs are the only thing that don't read below 1000 deg. Temps below that are not significant (for EGT). The bargraph can then have higher resolution over the range of interest.
Tracy
On Wed, Feb 8, 2012 at 11:27 PM, <bktrub@aol.com> wrote:
The egt can't read anything below around 800-1000 accurately f if I recall correctly. I don't recall exactly, but it's several hundred degrees, maybe as low as 180 or so when the engine is ambient- around 50 today.
Brian Trubee
-----Original Message-----
From: Bill Bradburry < bbradburry@bellsouth.net>
To: Rotary motors in aircraft < flyrotary@lancaironline.net>
Sent: Wed, Feb 8, 2012 8:17 pm
Subject: [FlyRotary] Re: one more thing
Speaking of EGT calibration. If the EGT reads ambient air temps accurately, does that mean that it is accurate throughout its range??? If
not, how do you check the temp when it is reading 15-1600 degrees??
Bill B
Also, I forgot to mention- in looking at the calibration for my EGTs I have the same settings for both- Scale factor is 1.943 and the low end offset is
38. Is this the correct factory setting?
|