X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 17 Sep 2013 07:42:10 -0400 Message-ID: X-Original-Return-Path: Received: from vms173005pub.verizon.net ([206.46.173.5] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTP id 6478075 for lml@lancaironline.net; Mon, 16 Sep 2013 22:09:21 -0400 Received-SPF: pass receiver=logan.com; client-ip=206.46.173.5; envelope-from=lancair403@verizon.net Received: from self87aab97f5d ([unknown] [71.176.2.161]) by vms173005.mailsrvcs.net (Sun Java(tm) System Messaging Server 7u2-7.02 32bit (built Apr 16 2009)) with ESMTPA id <0MT8009VGZAAMY50@vms173005.mailsrvcs.net> for lml@lancaironline.net; Mon, 16 Sep 2013 21:08:36 -0500 (CDT) X-Original-Message-id: <9250ADCFBE4D4D01B598EEF35AF813DA@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: Mon, 16 Sep 2013 22:08:34 -0400 MIME-version: 1.0 Content-type: multipart/alternative; boundary="----=_NextPart_000_0082_01CEB329.4956F630" 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_0082_01CEB329.4956F630 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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_0082_01CEB329.4956F630 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Bill-
 
MSP quoted $138 for a quantity of 1-9 = and $125 for=20 10-50, with a lead time of 10-12 weeks and a minimum quantity of = 5. These=20 MSP's are high quality, direct-replacements for the=20 Honeywells at less than 1/3rd the price. = Another advantage=20 is that they are furnished with 4 or 10 ft pigtails, so they can be = directly=20 connected to the DPU; no intermediate plug is necessary. It would be a = smart=20 move to purchase both a 50 and 100psi sensor for immediate replacement = of the=20 Honeywells or just to have them handy should (when) the=20 Honeywells fail.
 
Bill Rumburg
N403WR  (Sonic bOOm)
----- Original Message -----
From:=20 william=20 rossmann
Sent: Monday, September 16, = 2013 7:52=20 AM
Subject: [LML] Re: Replacement = VMS1000=20 Fuel and Oil Pressure Transducers

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

From: = William Rumburg=20 <lancair403@verizon.net>
= To: lml@lancaironline.net =
Sent: Friday, September 13, = 2013 9:36=20 PM
Subject: [LML] = Replacement=20 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 = Honeywell=20 MediMate transducer that the VMS 1000 employs for fuel pressure = indication.=20 Some tried to use that same transducer for oil pressure = and=20 reported that it didn't work, yielding a value twice the actual oil = pressure.=20 Here's 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 for=20 oil pressure also has a 50mV full output but, in this case, = that equates=20 to .5mV/psi. With it's 1mV/psi=20 output, the same MSP unit will not function for oil pressure; it = causes an=20 indication double the actual oil pressure. 
As stated in my post a couple of years ago, the = Honeywell=20 MediaMate is older and inferior technology, prone to failure, and -at = over=20 $400- is outrageously priced. In contrast, the MSP unit is compact, = superior=20 and modern technology at only $120.
There's another, almost identical MSP = unit that=20 has a 50mV full output and, consequently, will function perfectly = for=20 fuel and oil pressure in it's 50 and 100 psi versions. Here's the spec = sheet:=20 http://www.meas-spec.com/downloads/US300.pdf
Problem is that the combination = of it's 5VDC=20 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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