Alcor EGT and TIT Thermocouple Probes
Alcor EGT probes are accurate +/- 25 deg at 1500 deg F. Includes fire sleeve and ring terminal hardware.
Installation Instructions
EGT in a Nutshell
Screw-In Mount:
This option provides the neatest installation. Many engines now come with a hole already threaded for a screw-in probe. If not, threaded weld boss P/N 28113 can be purchased to retrofit an engine. Alcor screw-in probes are available in 7/16"-20 UNF thread common in Continentals or 1/4"-18 NPT common in Lycomings. Some probes are available with adjustable depth to accommodate different weld boss heights. The probe tip should be 3/4" into the tube. Screw-in probes are also available with a 90 deg bend or an 8 deg bend to allow for an engine design that will not accommodate the straight-in type.
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P/N
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Description
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Thermocouple Type
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Mount
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Grounded or Ungrounded
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Stagger
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Resistance
|
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86143 *
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EGT/TIT Probe
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K - Red and Yellow
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Screw-in, 1/4" NPT
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Grounded
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Normal
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0.89 +/- .10 Ohms
|
|
86153 ***
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EGT/TIT Probe
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E - Red and Brown
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Screw-in, 1/4" NPT
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Grounded
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Normal
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0.97 +/- .15 Ohms
|
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86159 **
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EGT/TIT Probe
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K - Red and Yellow
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Screw-in, 1/4" NPT
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Grounded
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Reverse
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0.70 +/- .10 Ohms
|
|
86160 **
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EGT/TIT Probe
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K - Red and Yellow
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Screw-in, 7/16"-20
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Grounded
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Reverse
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0.70 +/- .10 Ohms
|
|
86161 *
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EGT/TIT Probe, 90 deg bend
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K - Red and Yellow
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Screw-in, 1/4" NPT
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Grounded
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Reverse
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0.70 +/- .10 Ohms
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|
86230 *
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EGT/TIT Probe, 8 deg bend
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K - Red and Yellow
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Screw-in, 1/4" NPT
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Grounded
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Normal
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0.89 +/- .10 Ohms
|
|
86240
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EGT/TIT Probe
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K - Red and Yellow
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Screw-in, 7/16"-20
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Grounded
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Normal
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0.80 +/- .10 Ohms
|
|
86245 **
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EGT/TIT Probe, 11.56"
|
K - Red and Yellow
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Screw-in, 7/16"-20
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Grounded
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Reverse
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0.70 +/- .10 Ohms
|
|
86307 ***
|
EGT/TIT Probe
|
K - Red and Yellow
|
Screw-in, 1/4" NPT
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Ungrounded
|
Normal
|
0.71 +/- .03 Ohms
|
|
86308 ***
|
EGT/TIT Probe
|
K - Red and Yellow
|
Screw-in, 7/16"-20
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Ungrounded
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Normal
|
0.71 +/- .03 Ohms
|
|
86309 **
|
EGT/TIT Probe, Long Lead
|
K - Red and Yellow
|
Screw-in, 7/16"-20
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Ungrounded
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Normal
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1.60 Ohms
|
|
86341 *
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EGT/TIT Probe
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K - Red and Yellow
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Screw-in, 1/8" NPT
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Ungrounded
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N/A
|
0.94 +/- .10 Ohms
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* Adjustable depth tip
** Built in radiator
*** Adjustable depth tip and built in radiator
Clamp Mount:
The is the most common option because installation is easy and no welding is required. A hole is simply drilled in the exhaust near the mounting flange. The probe is inserted in the hole and a hose-clamp style clamp secures it in place. Clamps are available in various sizes to accommodate different sized exhaust tubes.
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P/N
|
Description
|
Thermocouple Type
|
Mount
|
Grounded or Ungrounded
|
Stagger
|
Resistance
|
|
86156 *
|
EGT/TIT Probe
|
E - Red and Brown
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Clamp, 3 1/4" Max
|
Grounded
|
Normal
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0.85 +/- .15 Ohms
|
|
86226 *
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EGT/TIT Probe
|
K - Red and Yellow
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Clamp, 3 1/4" Max
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Grounded
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Reverse
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0.70 +/- .10 Ohms
|
|
86255 *
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EGT/TIT Probe
|
K - Red and Yellow
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Clamp, 1 1/8" to 3 3/8"
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Grounded
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Normal
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0.80 +/- .10 Ohms
|
|
86275 *
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EGT/TIT Probe, 13.8"
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K - Red and Yellow
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Clamp, 3 1/4" Max
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Grounded
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Normal
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0.80 +/- .10 Ohms
|
|
86281 *
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EGT/TIT Probe
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K - Red and Yellow
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Clamp, 3 1/4" Max
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Grounded
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Normal
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0.85 +/- .10 Ohms
|
|
86310 *
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EGT/TIT Probe
|
K - Red and Yellow
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Clamp, 2.35" Max
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Ungrounded
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Normal
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1.60 Ohms
|
|
86343 **
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EGT/TIT Probe
|
K - Red and Yellow
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Clamp, 3 1/4" Max
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Ungrounded
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Normal
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0.80 Ohms
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* Built in radiator
** Omega style male plug connector. Does not include fire sleeve.
For more information on probes, go to Thermocouple Probes.
ALCOR Instruments and Probes
Don't waste your money on cheap instruments and probes. There is a big difference!
McFarlane is your lowest price and quickest source for Alcor products!
Increase engine life and enhance safety through proper monitoring
-
Faster responding probes than low dollar alternatives
-
Temperature compensated gauges for accuracy all year round at any altitude
-
Single gauges monitor one cylinder, dual gauges for twin engine aircraft monitor one cylinder per engine. Add a selector switch to make an economical full engine analyzer.
Lighted gauges and custom dials also available!
Alcor: A name you can trust
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Over 50 years experience - Designed, manufactured and supported in the USA
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Generous warranty: 3 years for gauges, 5 years for grounded probes, 1 year for ungrounded probes
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FAA-STC approved for all aircraft with reciprocating engines
Simple installation
- No power required from the aircraft (lighted gauges require power)
- Works even with an electrical failure
- Great for homebuilt or antique aircraft with no electrical system
- Gauges include all mounting hardware
- Standard 2 1/4" or 3 1/8" gauge sizes
Save with complete kits!