X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 20 Sep 2013 08:12:49 -0400 Message-ID: X-Original-Return-Path: Received: from vms173021pub.verizon.net ([206.46.173.21] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTP id 6482885 for lml@lancaironline.net; Thu, 19 Sep 2013 21:55:24 -0400 Received-SPF: pass receiver=logan.com; client-ip=206.46.173.21; envelope-from=lancair403@verizon.net Received: from self87aab97f5d ([unknown] [71.176.57.179]) by vms173021.mailsrvcs.net (Sun Java(tm) System Messaging Server 7u2-7.02 32bit (built Apr 16 2009)) with ESMTPA id <0MTE00GTOIMPQH50@vms173021.mailsrvcs.net> for lml@lancaironline.net; Thu, 19 Sep 2013 20:54:26 -0500 (CDT) X-Original-Message-id: <4C71FE8D31194B4498BF48ED1008F342@self87aab97f5d> From: "William Rumburg" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: Replacement VMS1000 Fuel and Oil Pressure Transducers X-Original-Date: Thu, 19 Sep 2013 21:54:20 -0400 MIME-version: 1.0 Content-type: multipart/alternative; boundary="----=_NextPart_000_0098_01CEB582.CB8E0020" X-Priority: 3 X-MSMail-priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 This is a multi-part message in MIME format. ------=_NextPart_000_0098_01CEB582.CB8E0020 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Roger- The Vision Microsystems VM1000 obtains oil and fuel pressure by sending = 5VDC to a transducer, which returns a 0 to 50 millivolt signal thats = linearly proportional to pressure. All pressure transducer's function in = a similar manner; however, there are several variations on the voltage = transmitted and the type of electrical signal that's returned. Other = systems -including your's- might use that same combination, but it's = unlikely. You'd have to know the electrical parameters for the pressure = transducers employed by your MFD before seeking a substitute. MFD = manufacturer's tend to keep those a secret in order to make you a = captive customer for replacement transducers.=20 Bill Rumburg N403 (Sonic bOOm) ----- Original Message -----=20 From: Roger Iverin=20 To: lml@lancaironline.net=20 Sent: Wednesday, September 18, 2013 8:32 AM Subject: [LML] Re: Replacement VMS1000 Fuel and Oil Pressure = Transducers Hi, Are this ones universal and will work on any MFD or monitor? Roger=20 On 17.09.2013 22:40, william rossmann wrote: Okay Bill put me in for the 50 and the 100.. Bill From: William Rumburg To: lml@lancaironline.net=20 Sent: Tuesday, September 17, 2013 7:42 AM Subject: [LML] Re: Replacement VMS1000 Fuel and Oil Pressure = Transducers Bill- MSP quoted $138 for a quantity of 1-9 and $125 for 10-50, with a = lead time of 10-12 weeks and a minimum quantity of 5. These MSP's are = high quality, direct-replacements for the Honeywells at less than 1/3rd = the price. Another advantage is that they are furnished with 4 or 10 ft = pigtails, so they can be directly connected to the DPU; no intermediate = plug is necessary. It would be a smart move to purchase both a 50 and = 100psi sensor for immediate replacement of the Honeywells or just to = have them handy should (when) the Honeywells fail. Bill Rumburg N403WR (Sonic bOOm) ----- Original Message -----=20 From: william rossmann=20 To: lml@lancaironline.net=20 Sent: Monday, September 16, 2013 7:52 AM Subject: [LML] Re: Replacement VMS1000 Fuel and Oil Pressure = Transducers Hi Bill are both 50 and 100psi MSP sensors $120.00 each.. Regards Bill From: William Rumburg To: lml@lancaironline.net=20 Sent: Friday, September 13, 2013 9:36 PM Subject: [LML] Replacement VMS1000 Fuel and Oil Pressure = Transducers A couple of years ago, I made a post identifying a superior -and = much lower cost- Measurement Specialties Products (MSP) transducer as a = replacement for the Honeywell MediMate transducer that the VMS 1000 = employs for fuel pressure indication. Some tried to use that same = transducer for oil pressure and reported that it didn't work, yielding a = value twice the actual oil pressure. Here's why: The 50 psi Honeywell unit that VMS employed for fuel pressure has = a 50mV full output, which equates to 1mV/psi. The 100 psi MSP unit that = I recommended has a 100mV full output, which also equates to 1mV/psi; so = it functions perfectly as a replacement for *fuel pressure*. The 100 psi Honeywell unit that VMS employs for oil pressure also = has a 50mV full output but, in this case, that equates to .5mV/psi. With = it's 1mV/psi output, the same MSP unit will not function for oil = pressure; it causes an indication double the actual oil pressure.=20 As stated in my post a couple of years ago, the Honeywell = MediaMate is older and inferior technology, prone to failure, and -at = over $400- is outrageously priced. In contrast, the MSP unit is compact, = superior and modern technology at only $120.=20 There's another, almost identical MSP unit that has a 50mV full = output and, consequently, will function perfectly for fuel and oil = pressure in it's 50 and 100 psi versions. Here's the spec sheet: = http://www.meas-spec.com/downloads/US300.pdf Problem is that the combination of it's 5VDC supply voltage and 50 = mV output is rarely utilized in industry, so there aren't now any = available. However, I contacted one of MSP's distributors and they = appear willing to place an order for the 10 unit minimum, provided that = there's interest. Let me know if you're interested, even to purchase one now for = future use if your current transducer should fail. Bill Rumburg N403WR (Sonic bOOm) =20 ------=_NextPart_000_0098_01CEB582.CB8E0020 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Roger-
 
The Vision Microsystems VM1000 obtains = oil and fuel=20 pressure by sending 5VDC to a transducer, which returns a 0 to 50 = millivolt=20 signal thats linearly proportional to pressure. All pressure=20 transducer's function in a similar manner; however, there are = several=20 variations on the voltage transmitted and the type of electrical signal = that's=20 returned. Other systems -including your's- might use that same = combination, but=20 it's unlikely. You'd have to know the electrical parameters for the = pressure transducers employed by your MFD before seeking a = substitute.=20 MFD manufacturer's tend to keep those a secret in order to make you a = captive=20 customer for replacement transducers.
 
Bill = Rumburg
N403 (Sonic bOOm)
 
 
----- Original Message -----
From:=20 Roger = Iverin=20
Sent: Wednesday, September 18, = 2013 8:32=20 AM
Subject: [LML] Re: Replacement = VMS1000=20 Fuel and Oil Pressure Transducers

Hi,

Are this ones universal and = will work on=20 any MFD or monitor?

Roger


On 17.09.2013 22:40, = william=20 rossmann wrote:
Okay Bill put me in for the 50 and the 100..
Bill

From: William Rumburg "><lancair403@verizon.net>
To: lml@lancaironline.net =
Sent: Tuesday, September 17, = 2013 7:42=20 AM
Subject: [LML] = Re:=20 Replacement VMS1000 Fuel and Oil Pressure = Transducers

Bill-
 
MSP quoted $138 for a quantity of = 1-9 and $125=20 for 10-50, with a lead time of 10-12 weeks and a minimum quantity of = 5. These MSP's are high quality, direct-replacements for = the=20 Honeywells at less than 1/3rd the price.=20 Another advantage is that they are furnished with 4 or 10 ft = pigtails,=20 so they can be directly connected to the DPU; no intermediate plug = is=20 necessary. It would be a smart move to purchase both a 50 and 100psi = sensor=20 for immediate replacement of the Honeywells or just to have them = handy=20 should (when) the Honeywells fail.
 
Bill Rumburg
N403WR  (Sonic = bOOm)
-----=20 Original Message -----
From:=20 william rossmann
To:=20 lml@lancaironline.net
Sent:=20 Monday, September 16, 2013 7:52 AM
Subject:=20 [LML] Re: Replacement VMS1000 Fuel and Oil Pressure = Transducers

Hi Bill are both 50 and 100psi MSP sensors $120.00=20 each..
Regards Bill

From: William Rumburg = <lancair403@verizon.net>
To: lml@lancaironline.net
Sent: Friday, September 13, = 2013 9:36=20 PM
Subject: = [LML]=20 Replacement VMS1000 Fuel and Oil Pressure = Transducers

A couple of years ago, I = made a=20 post identifying a superior -and much lower cost- = Measurement=20 Specialties Products (MSP) transducer as a replacement for = the=20 Honeywell MediMate transducer that the VMS 1000 employs for fuel = pressure=20 indication. Some tried to use that same transducer = for oil=20 pressure and reported that it didn't work, yielding a value twice = the=20 actual oil pressure. Here's=20 why:
The 50 psi Honeywell = unit that VMS=20 employed for fuel pressure has a 50mV full output, which = equates to=20 1mV/psi. The 100 psi MSP unit = that I=20 recommended has a 100mV full output, which also equates to = 1mV/psi; so it=20 functions perfectly as a replacement for *fuel = pressure*.
The 100 psi Honeywell unit that = VMS employs=20 for oil pressure also has a 50mV full output but, in this case,=20 that equates to .5mV/psi. With it's 1mV/psi output, the same MSP unit will not = function for=20 oil pressure; it causes an indication double the actual oil=20 pressure. 
As stated in = my post a=20 couple of years ago, the Honeywell MediaMate is older and inferior = technology, prone to failure, and -at over $400- is outrageously = priced.=20 In contrast, the MSP unit is compact, superior and = modern technology=20 at only $120.
There's another, almost identical = MSP unit=20 that has a 50mV full output and, consequently, will function=20 perfectly for fuel and oil pressure in it's 50 and 100 psi = versions.=20 Here's the spec sheet: http://www.meas-spec.com/downloads/US300.pdf=
Problem is that the combination = of it's=20 5VDC supply voltage and 50 mV = output is rarely utilized in=20 industry, so there aren't now any available. However, I = contacted one=20 of MSP's distributors and they appear willing to place = an=20 order for the 10 unit minimum, provided that there's=20 interest.
Let me know if you're interested, = even to=20 purchase one now for future use if your current transducer should=20 fail.
 
Bill Rumburg
N403WR  (Sonic=20 bOOm)   
=
 





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