VM1000 Fuel Pressure Sender Alternative Part

[dtw_rv6]

I have just discovered that the fuel pressure sender for my VM1000 is no longer operating (0 psi).... This is one of the original LCD VM1000 units for my 4 cylinder, fuel injected lycoming.

This is a 4 wire unit for 0-80 psi, and Vision Microsystems wants about $200 for the sending unit.

I've searched for an alternative sender, but all appear to be 2 wire, or 3 wire units, and I'm not savvy enough to know the difference. Is there any option for replacing the faulty sender -- other than paying what seems to be a fairly steep price?

Don

[81T]

Sent you a P/M

[isenburg]

They keep the manufacturer/model a secret in order to support their price, but some research revealed it to be a Honeywell 'MediaMate' model MM050PG1HA http://sensing.honeywell.com/index.c...ment/1/re_id/0 (thanks Bill from the Lancair forum!!)

It has a 0-50mVDC output over its 0-50 psi range.

A lower cost and, I believe, superior replacement is the Measurement Specialties MSP 340 model M3421-000006-100PG
http://www.meas-spec.com/product/t_product.aspx?id=5115
It has a 0-100mVDC output over its 0-100 psi range. It's available from Digi-Key for about $115 and a direct replacement for the Honeywell, except that the green and white output wires have to be reversed.

here is the DigiKey link:
http://www.digikey.com/product-searc...rds=MSP6892-ND