Out of stock

86255

Name: 86255
Brand: Alcor
SKU: NAT-XMQDNDKJ
Price: 105.00 USD
Availability: OutOfStock

The 86255 probe is intended for exhaust gas temperature and turbine inlet temperature measurement on reciprocating aircraft engines.

$105.00

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Product Description

Alcor 86255 is a grounded Type K clamp-style EGT and TIT thermocouple probe used on reciprocating aircraft engines to measure exhaust gas or turbine inlet temperature with compatible Type K instruments.

0 1. Overview

The 86255 thermocouple uses a clamp mounting design that fits exhaust system tubing with diameters from approximately 1 1/8 inches up to about 3 1/4 inches, with an associated mounting hole size of about 0.1285 inch. The clamp assembly incorporates a small diameter sensing element that produces near instantaneous instrument response and provides sufficient electrical output for unamplified Alcor indicators. The probe is constructed as a grounded Type K junction and is supplied with red and yellow lead wires configured for use with Type K EGT or TIT instruments and matching extension leads. The electrical resistance of the sensor is specified as 0.80 ohm with a tolerance of ±0.10 ohm, and the probe is rated for accuracy of ±25 degrees at 1500 degrees Fahrenheit. The assembly weight is about 0.12 pounds and includes ring terminals and required mounting hardware. The design incorporates an integral radiator section to limit high temperature effects on the internal spot-welded connections. This probe carries PMA and FAA approval for use on reciprocating powered aircraft in approved installations.

0 2. Key Features

Grounded Type K thermocouple probe for EGT and TIT measurement
Clamp style mount that fits exhaust systems from about 1 1/8 in to 3 1/4 in diameter
Configured with red and yellow leads for Type K thermocouple circuits
Sensor resistance specified as 0.80 ± 0.10 ohm
Accuracy rated to ±25 °F at 1500 °F operating temperature
Integral radiator section reduces thermal loading on internal connections
Supplied with ring terminals and associated mounting hardware
PMA and FAA approved for use on reciprocating powered aircraft

0 3. Specifications

Manufacturer Part Number: 86255
Product Type: Type K EGT/TIT thermocouple probe
Thermocouple Type: K (red and yellow leads)
Junction Type: Grounded
Mounting Style: Clamp, 3 1/4 in max exhaust diameter
Compatible Exhaust Diameter Range: Approximately 1 1/8 in to 3 1/4 in
Recommended Mounting Hole Size: Approximately 0.1285 in
Electrical Resistance: 0.80 ± 0.10 ohm
Temperature Accuracy: ±25 °F at 1500 °F
Assembly Weight: 0.12 lb
Included Items: Probe, clamp, ring terminals, and mounting hardware
Regulatory Approval: PMA and FAA approved for reciprocating powered aircraft

FAQs

01. What thermocouple type is used in the 86255 probe?

The 86255 probe uses a grounded Type K thermocouple element with red and yellow leads.

02. For what engine temperatures is the 86255 probe intended?

The 86255 probe is intended for exhaust gas temperature and turbine inlet temperature measurement on reciprocating aircraft engines.

03. What exhaust pipe sizes can the 86255 clamp fit?

The 86255 clamp fits exhaust systems with diameters from approximately 1 1/8 inches to 3 1/4 inches using an approximate 0.1285 inch mounting hole.

04. What is the specified electrical resistance of the 86255 thermocouple?

The 86255 thermocouple has a specified resistance of 0.80 ohm with a tolerance of ±0.10 ohm.

05. Does the 86255 EGT/TIT probe have regulatory approval for aircraft use?

The 86255 EGT/TIT probe is PMA and FAA approved for use on reciprocating powered aircraft in approved installations.