Optix Pyro Gauge Question

[nineback]

I just installed the Optix pyro, boost, and trans gauges. I noticed that when I turn off the engine that the pyro gauge stays at whatever it was reading when I turned off the engine instead of dropping to zero. When I crank the truck later the gauge goes to zero and then moves to the current temperature. Is it normal for the gauge not to return to zero when turning off the engine?



Thanks,



Tom

 

[lmills]

yes, that is normal for that pyro. it resets whent he voltage is switched off then back on.

 

[RLPrice]

Tom,

My Westach Combo gauge does the same thing with the EGT's, stays where it was when I turn it off. Suspect it's still reading the current temp. . It's at zero when I restart later.

 

[nineback]

Thanks for the fast replies.



Tom

 

[BSwope]

Yup mine dose the same thing!

 

[JWendt]

Another reason is that it's a DC powered gauge and when you remove the power from it. The gauge will freeze where its at. Until you put power back to it.

 

[AndyT]

Actually, the reason this happens is that the gauge needle is operated by a small step motor. These motors will stay in their current position when power is removed, assuming there is not a load on the motor greater than the holding power of the internal magnets.



On another note, I installed an Optix gauge on my truck and noticed some erratic readings when I used my cell phone (Nextel). Upon contacting the manifacturer, they mentioned another person was having this same issue. Apparently the frequency Nextel phones operate on is very near the frequencies the step motor in the gauge responds to. I sent my gauge to them and a prototype replacement was sent in quick order. So far, the replacement is working properly. They are in the process of making a new batch of gauges and I am to receive one when they arrive. (The prototype they sent has a black face instead of the white face gauges I have. )



I suggest if anyone is having the same cell-phone related issue, contact Danin to discuss the problem with Eric. They are very helpful and my customer service experience with them has been great.





Andy

 

[BSwope]

Thanks for that bit of info, i have a Nextel as well dose it only do it when your usein the phone?