Return-Path: Received: from fed1rmmtao08.cox.net ([68.230.241.31] verified) by logan.com (CommuniGate Pro SMTP 4.2.2) with ESMTP id 423842 for flyrotary@lancaironline.net; Tue, 21 Sep 2004 10:42:29 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.31; envelope-from=ALVentures@cox.net Received: from BigAl ([68.107.116.221]) by fed1rmmtao08.cox.net (InterMail vM.6.01.03.04 201-2131-111-106-20040729) with ESMTP id <20040921144156.QIUU5616.fed1rmmtao08.cox.net@BigAl> for ; Tue, 21 Sep 2004 10:41:56 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] EM2 Calibration Date: Tue, 21 Sep 2004 07:41:57 -0700 Message-ID: <000001c49fe9$256d6860$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C49FAE.790E9060" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C49FAE.790E9060 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: [FlyRotary] EM2 Calibration =20 =20 Altitude. In understand that the altitude readout isn't adjusted for = current pressure, but still. Mine reads 687 ft when I'm actually at 14 ft. Is = there a way to adjust it so that it's al least close? =20 I wouldn't be concerned about this - density altitude could easily = differ from actual altitude by that much. Mine was much further off; but then = I have some discrepancies on other readouts that are still puzzling me. =20 Warnings. The system sends an intermittent ground to flash a warning = light. If you're using a voice system or a LED that flashes anyway you'll need = a steady ground. So, instead of saying "John, Check the engine monitor" my voice system says "John...John...John..." =20 Is it a sexy female voice? Maybe she is just overwhelmed . . :-) Can't comment on that one; don't have a voice warning, but the flashing LED = seems to work - although it has been flashing all the time. I haven't checked = all the warning settings, but I assume something has always been out of = range. =20 I also notice that the offending item on the display flashes about once every 30 seconds. I find that this is too long. If you miss the first = flash you have 30 seconds to wait until you know what's wrong. I'd rather see = this flash set at every 3 seconds or so. =20 Hum-m-m. I recall that mine flashes with the LED; at least once/second. =20 Anyone else have any tips as I head into this calibration stuff? =20 My experience so far would indicate that you should check the = calibration on most or all channels. That would mean verifying readings at least at = two points; low end and in operating range. I had air temps and MAP = readings that were a consistent 10% off using the default calibration inputs, although when Tracy had the unit in his shop it apparently was giving = good readings; so there must be something that is installation dependant; = maybe just mine. =20 As I was getting into the calibration stuff a couple of weeks ago I = managed to trigger some obscure bug (some combination of inputting a correction = just as a low voltage warning was triggered) in the software that resulted in corruption of all the calibration data on a half dozen channels. Unfortunately added to Tracy's concerns while Frances was dealing its = blow. But a new chip is on the way, so I will resume that journey soon. =20 Meanwhile, my rotor oil injection pump was leaking oil around the = adjustment level shaft and stopped pumping oil, so I had to exchange that. I = thought that little Mikuni (sp?) pump was bulletproof. =20 Al ------=_NextPart_000_0001_01C49FAE.790E9060 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Subject: [FlyRotary] EM2 Calibration

 

 <= /font>

Altitude. In understand that the altitude readout isn't adjusted for current = pressure, but still. Mine reads 687 ft when I'm actually at 14 ft. Is there a way = to adjust it so that it's al least close?

 

I wouldn’t be concerned = about this – density altitude could easily differ from actual altitude by = that much.  Mine was much further off; but then I have some discrepancies on = other readouts that are still puzzling me.

 <= /font>

Warnings. The system sends an intermittent ground to flash a warning light. If = you're using a voice system or a LED that flashes anyway you'll need a steady = ground. So, instead of saying "John, Check the engine monitor" my voice system = says "John...John...John..."

 <= /font>

Is it a sexy female voice?  = Maybe she is just overwhelmed . . J  Can’t comment on that one; don’t have a = voice warning, but the flashing LED seems to work - although it has been = flashing all the time.  I haven’t checked all the warning settings, but I = assume something has always been out of range.

 

I also notice that the offending item on the display flashes about once = every 30 seconds. I find that this is too long. If you miss the first flash you = have 30 seconds to wait until you know what's wrong. I'd rather see this flash = set at every 3 seconds or so.

 

Hum-m-m.  I recall that mine flashes with the LED; at least once/second.

 <= /font>

Anyone else have any tips as I head into this calibration = stuff?

 

My experience so far would = indicate that you should check the calibration on most or all channels.  That = would mean verifying readings at least at two points; low end and in operating = range.  I had air temps and MAP readings that were a consistent 10% off using the = default calibration inputs, although when Tracy had the unit in his shop it apparently was giving good = readings; so there must be something that is installation dependant; maybe just = mine.

 

As I was getting into the = calibration stuff a couple of weeks ago I managed to trigger some obscure bug (some combination of inputting a correction just as a low voltage warning was triggered) in the software that resulted in corruption of all the = calibration data on a half dozen channels.  Unfortunately added to = Tracy’s = concerns while Frances was dealing its blow.  But a new chip is on the way, so I will resume = that journey soon.

 

Meanwhile, my rotor oil injection = pump was leaking oil around the adjustment level shaft and stopped pumping = oil, so I had to exchange that.  I thought that little Mikuni (sp?) pump was = bulletproof.

 

Al

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