REFLECTOR: CHT monitor

[aminetech at bluefrog.com]

Doug,

As I understand it, one of those leads is considered a ground.  According to RMI's installation manual, the red wire is normally the ground wire.

John

--- douglas.holub at gmail.com wrote:

From: "Douglas Holub" <douglas.holub at gmail.com>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Subject: Re: REFLECTOR: CHT monitor
Date: Wed, 18 Mar 2009 08:51:53 -0500

I wouldn't think there would be any ground leads involved with CHT probes. 
The wiring diagram for my RMI CHT probes uses a double pole rotary switch 
that successively sends both CHT leads from each probe to the engine 
monitor.

Doug Holub
5 hrs on N2980W, cylinders are cool, oil still hot
----- Original Message ----- 
From: <aminetech at bluefrog.com>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Tuesday, March 17, 2009 11:59 AM
Subject: REFLECTOR: CHT monitor


> I'm installing a digital CHT, single readout gauge using a Westach switch 
> to switch amoung the 6 cylinders.  The wiring that comes with the switch 
> connects all the grounds into a single lead.  I assume that is not a 
> problem?  Also, the ground wires are larger and I'm wondering why?
>
> John
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