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Egt Gauge

What Thermocouple(s) would be best for use with a dual output pyrometer on an automotive application?

I'm trying to wire up a dual display pyrometer as an exhaust gas temperature (EGT) gauge. It needs to meter 1200F (~600C) to about 2000F (~1100C) and be able to be permanently attached to the exhaust.
So what are the properties of the K- thermocouple. That was the one i was leaning toward given it's temperature range, but i don't really know anything about them.

Can it be for example screwed into an open bung in an exhaust system?

I need to determine EGT's for two separate rotor housings so that i can detect a lean condition in one or the other.

An air/fuel gauge can do this for the engine but not for individual housings.

Where would i buy a k-thermocouple?

Chromel-Alumel. If I remember correctly it's "Type- K" and will be linear through that temperature range (it's linear range= -190C to 1260C). Just remember that your "digital temp guage" (is not a pyrometer) must be programmed to receive the millvolt output range of the thermocouple or at least that portion of the range displayed on the temp gage (Not a Pyrometer). If the temperature gage is not programmable then you must find the thermocouple that matches the input millivolt range of the temp gage.

A "pyrometer" does not have to be wired up and does not need a thermocouple to detect heat. A pyrometer is a non-contact detector and a thermocouple needs to make contact with the heat source. They are two totally different ways of measuring heat. A pyrometer optically detects and measures radiation and converts it to a temp measurement.

A thermocouple detects and measures molecular activity and converts it to a milli-volt signal.
I hope this info helps in your endevour.

Note; A thermocouple is just two dissimular metal wires that; when, connected at one end generate a linear millivoltage when heated. You can just tack weld them to your exhaust system. Or, you could weld it to a bolt and screw it into your system (bung). You should be able to buy them at radio shack or any simular electronics shop.. some VOMs (volt ohm meters) have a place to plug (the other end of the wires) thermocouples into and read-out the temp directly. They sell those at radio shack and other electrical shops also. You can look-them-over while your there. They might even have a cheap type k digital that you can plug the wires into..If you tack weld them you must make sure that the wires are still touching each other and not just the other metal otherwise you will get an error in your reading. So twist them together real good before tacking.
Type "K" just means one wire is chrome and the other is aluminum (alloys)

Factory Match; Pyrometer-EGT Gauge $164.69 Factory Match; Pyrometer-EGT Gauge; 2 1-16 in.; 0 - 1600 Deg. F; Incl. 10 ft Thermocouple; 1-8 in. NPT Fitting; Full Sweep;

Auto Meter 8444 Factory Match Pyrometer/EGT Gauge 2 1/16 in. 0 - 1600 Deg. F $182.59 Auto Meter 8444 8444 Factory Match; Pyrometer/EGT Gauge; 2 1/16 in.; 0 - 1600 Deg. F;

Edge Insight Thermocouple EGT Probe Edge 98600 $79.99 The Insight is an easy-to-install standalone multi-gauge display. With what would otherwise cost thousands of dollars and take hours to install the Insight provides inexpensively and instantly. EGT probe sold separately.

ApexI EL II Electronic Exhaust Gas Temperature EGT Gauge Black $236.99 ApexI EL II Electronic Exhaust Gas Temperature EGT Gauge BlackThe EL II System Meters are the newest addition to the EL Meters lineup. The 60mm System Meters utilize a main control unit which constantly monitors the movement of all of the gauges. The

ApexI EL II Electronic Exhaust Gas Temperature EGT Gauge White $236.99 ApexI EL II Electronic Exhaust Gas Temperature EGT Gauge WhiteThe EL II System Meters are the newest addition to the EL Meters lineup. The 60mm System Meters utilize a main control unit which constantly monitors the movement of all of the gauges. The

Auto Meter 8545 Factory Match Pyrometer/EGT Gauge 2 1/16 in. 0 - 2000 Deg. F $181.99 Auto Meter 8545 8545 Factory Match; Pyrometer/EGT Gauge; 2 1/16 in.; 0 - 2000 Deg. F; Incl. 10 ft Thermocouple; 1/8 in. NPT Fitting; Full Sweep;

Auto Meter 8544 Factory Match Pyrometer/EGT Gauge 2 1/16 in. 0 - 1600 Deg. F $171.99 Auto Meter 8544 8544 Factory Match; Pyrometer/EGT Gauge; 2 1/16 in.; 0 - 1600 Deg. F; Incl. 10 ft Thermocouple; 1/8 in. NPT Fitting; Full Sweep;

Revolution 2 116 Inch Exhaust Gas Temperature Custom Gauge 200-1600F with EGT Probe $167.95 Revolution 2 116 Inch Exhaust Gas Temperature Custom Gauge 200-1600F with EGT ProbeRevolution Gauges 270 degree sweep movement gauges are easier to read at the most important and critical threshold measurement points than lower cost and quality 90 de

Turbo XS DTEC-EGT $126.79 Turbo XS DTEC-EGT DTECEGT Sensor: DTEC EGT Sensor

Elation ZB-EGT $39.95 Elation ZB-EGT 120V-1000W, for Pro FS 1000 Get Your Elation ZB-EGT Today!

TurboXS DTEC EGT Sensor $158.99 TurboXS DTEC EGT SensorThe DTEC-EGT is a high quality type K thermal couple that allows the DTEC to monitor and log exhaust gas temperatures.

DiabloSport T1010 $189.95 DiabloSport T1010 T1010 TRINITY EGT GAUGE PACK

Edge 98600 Insight Thermocouple EGT Probe $79.98 Edge 98600 98600 Insight Thermocouple EGT Probe;

Auto Meter Elite Series Pyrometer-EGT $197.99 Auto Meter Elite Series Pyrometer-EGT

Edelbrock QwikData EGT Thermocouple Compression Fitting - 91130 $27.99 For use with QwikData EGT Thermocouple.Product Features:QwikData EGT thermocouple compression fitting. Most Motorcycle products are available for in-store pickup from Advance Auto Parts.

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BDC's Alky Videos - 25psi and EGT gauge view



What type of wire should i use to hook up my pyrometer and where?

yea i drive a 99 mustang gt 4.6L this is the link to my pyrometer..

http://www.upscaleautomotive.com/p-18883-auto-meter-phantom-52mm-full-sweep-electric-0-1600f-egt-pyrometer-gauge.aspx

i just need to know if its possible where i hook the other end, but i mainly need to know what kind of wire ill need?? any help would be great thanks

the same gauge of wire coming out of the gauge. probably 16 or 18ga.