hi

i have optix gauges.
now the problem: pyro guages i read from 250 to 1000
now this morning i read 400 to 1200.

on idle i have normal 250 but this morning 400.

i shut off the engines.i read 400 on gauges.

i turn key on the gauges going to zero and the to 250.

i trun on the engine an drive around 5 miles the gauges read 250 to 1000.

i have 12 volt power switched from lighter.

thanks
for help

chris

 

Pyrometers don't read zero when the engine is off.

Sounds like normal operation if I understood you correctly.

 

Mines done that a few times and all I've done is shut down the truck and count to three then start it and the pyro's back to normal.

 

yes the pyro read 250 on shut down.
but on key on the pyro read for 2-3 seconds zero an then 250.

if the pyro gauges make reset.

chris

 

Yeah sounds normal to me! Mine dose the same thing, when it reads 250 its just reading the manifold temp. But sometimes just driving around mine takes a fit and reads way off like when it should be around 400 it reads 800 and then and with just alittle pressure on the skinny peddle it will jump to 1600like nothing while the TST is reading only 400-450 the whole time! But once i turn the key off it will reset itself and all is well again!

 

yes thats it. same problem.

chris

 

Optix gauges need a very good on-off circuit. If for some reason they receive enough power to not fully shut off and reset, they will keep on adding the start numbers. It is weird. After having a couple of problems with these, I started to run a separate relay just for the gauges. This ensures that they do not receive ANY power when the key is off. Then when the key is turned on, the relay is excited and the gauge receives it's power and then resets. After the relay power supply, never a problem again.

 

Thanks for the info, any pics of the relay? What type is it?

 

Same here. I may have to try the relay deal too.

 

12 volt, 30 amp relay.

http://www.the12volt.com/relays/page5.asp#rtol

Go to "Connecting Additional Devices to the Remote Turn On Wire"

Put constant 12V+ to post 87. 87a will not be used. Post 30 will run to your gauge power wires (keyed and 12V+ constant). Post 85 goes to ground. Post 86 goes to key on 12V+.

 

ok cool
thanks for this ...

chris