These type K ungrounded thermocouples are manufactured using Special (+/-0.4%) limits and have a time response of 1.7 to 4.0 seconds depending on the tip configuration.
Conax Technologies manufactures these exhaust thermocouples with tip diameters from .062 diameter to .125. They are used on all heavy duty gas turbines and are of the latest configuration for easy replacement. Just connect Conax’s thermocouple to the flexible, stainless steel braided cable for quick installation and longer life.

All specification qualified exhaust gas and blade path thermocouples are manufactured from ASTM E585 thermocouple materials utilizing the highest purity insulation material yielding superior insulation resistance at elevated temperatures.

Exhaust Gas Sensor	Blade Path Sensor
Frame 5 Series EGT Sensor	Frame 7 Series EGT Sensor

The thermocouples are manufactured and tested at various points during the manufacturing cycle ensuring the highest possible level of quality. Product testing includes helium leak testing, calibration, thermal shock, insulation resistance and hermeticity testing of sealing points.

Featuring Type K conductor wire with MgO insulation, hermetically sealed in stainless steel for high-temperature oxidation resistance, vibration resistant hermetic terminations and high reliability mineral insulated cable.

Conax Technologies also manufactures exhaust thermocouples using other configurations. Simply supply the drawing number you have and utilize our short cycle turn around time.

These exhaust gas thermocouples, like all of our products, are manufactured in the United States of America.

Wheelspace, Disc Cavity and Compressor Discharges Thermocouples

Conax Technologies’ thermocouples for this application meet the operational and performance requirements per the OEM specifications as replacements on heavy duty gas turbines. These cost effective thermocouples are designed to be hermetically sealed to provide a more reliable product that eliminates IR failures. The positive stop at the tip of the thermocouple eliminates any fretting problems. Conax’s wheelspace, disc cavity and C.D.T. thermocouples are manufactured using a stainless steel sheath, MgO insulation with type K conductors to ensure the robust design needed in this application.

Wheelspace Sensor Assembly

All specifications qualified thermocouples are manufactured from ASTM E585 thermocouple material utilizing the highest purity insulation materials yielding superior insulation resistance at elevated temperatures. The thermocouples are manufactured and tested at various points during the manufacturing cycle, ensuring the highest possible level of quality.

Production testing includes helium leak testing, calibration, thermal shock, insulation resistance and hermeticity testing of sealing points.
Conax Technologies also manufactures these type thermocouples using other configurations. Simply supply the drawing number you have and utilize our short cycle turn around time.
These thermocouples, like all of our products, are manufactured in the United States of America.

Bearing Sensors and Seals
These sensors are for embedded applications where temperature monitoring is critical to machine performance and reliability. Available with RTDs or thermocouple types J, K, T and E. The unique bearing sensor wire seal prevents migration of oil along the sensor leads.

Bearing Sensor Assembly

Air Inlet or Oil Temperature Sensor
All specification qualified air inlet thermocouples are manufactured from ASTM E585 thermocouple material utilizing the highest purity insulation material yielding superior insulation resistance and sensor repeatability. The thermocouples are manufactured and tested at various points during the manufacturing cycle ensuring the highest possible level of quality.

Air Inlet or Oil Temperature Sensor

CBT 100 Series sensor-terminal head assemblies are available in all thermocouple calibrations and in RTD assemblies with 100, 200, 500 and 1000 ohm platinum, 10 ohm copper or 120 ohm nickel elements. Assemblies are available with stainless steel sheaths, a W8 mounting fitting and explosion-proof terminal head with terminal strip and 4-20mA transmitter.

Example: CBT100-RTD43W3-SS25-T8E(W8)-15.00″

CBT 200 and CBT 300 assemblies are NEC-compliant replacement probes for use with UL and CSA-approved terminal heads in hazardous locations. CBT 200 provides a W8 fitting for attachment to the terminal head and to the vessel. CBT 300 provides a W7 fitting for attachment to the terminal head. A separate adjustable fitting is required to attach the probe to the vessel.

Example: CBT200-RTD43W3-SS25-T1(4”)-W8-15.00″	Example: CBT300-RTD43W3-SS25-T1(4:)-W7-15.00″

CT 600 Series sensor-terminal head assemblies are available in all thermocouple calibrations and in RTD assemblies with 100, 200, 500 and 1000 ohm platinum, 10 ohm copper or 120 ohm nickel elements. Assemblies are available with stainless steel or Inconel sheaths, a spring loaded mounting fitting (CSLW) and explosion-proof terminal head with terminal strip. Note: Sensor must be installed into either a thermowell or a port machined into a solid metal piece with a 1/2″-14 NPT mounting connection made per ANSI/ASME B1.20.1 and gauged to +1/2 to +2 turns from flush with end of start thread in accordance with CSA Std. C22.2 0.5 and UL Std. 1203, A 36″ maximum bore depth, a 0.104″ minimum wall, and a ∅0.302″ maximum bore.

Example: CT600-RTD43W3-SS25-T8E(CSLW) -15.00”

Certificate No. LR111664-1

Replacement Steam Turbine Sensors
Conax offers a complete line of OEM replacement and aftermarket equivalent sensors for steam turbines.We maintain a complete set of OEM drawings for bearing sensors, inner case sensors, outer case sensors and shell sensors (part numbers beginning with U251, U252, U253, U231, U248 and U249).

Sensors can also be manufactured and improved for any turbine manufacturer if you can provide a drawing, sketch or failed part.

Bearing Lube Temperature Sensor	U252 Series Bearing Sensor

Conax Technologies works with several OEM manufacturers of HRSG’s providing sensors for Superheaters, waste water evaporators, High Pressure drum temperatures well as tube skin temperature measurement. These sensors, usually provided in type K or E conductor material are manufactured from ASTM E585 grade MI cable. Often times weld pads matching tube materials and radius are provided.

Tube Skin Sensor

HRSG Thermowells
One of the most important features in HRSG’s is product life. Conax Thermowells are available in F21 and F22 alloys with full material certifications. Thermowells are designed with the ASME power test code as a guideline.

Thermowells

* Pins are polarized and identification marks are molded into the connector bodies
* Connectors are color-coded according to type
* Standard and miniature sizes available
* Metal ferrule tube adapters secure the probe in place, and cable clamps are used to hold the wire and provide strain relief
* Maximum service temperature is 400°F (204°C)
* High Temperature connectors are available for temperatures to 800°F (427°C)
* Dual construction available for thermocouple models only. Dual polarized plug and jack assemblies offer the same features as standard plug and jack assemblies but are supplied with a dual tube adapter. Service temperature upper limit: 400°F (204°C)
* Size (reference): Standard PJFC (single) – 3.8″ L x 0.6″ H, 0.163 lb; Miniature PJFC – 1.75″ L x 0.3″ H, 0.042 lb.

The environmental conditions found in pharmaceutical autoclave chambers are extreme for any equipment. These conditions are a major cause of sensor failure in chamber/load probes due to the ingress of moisture into the sensor and the unacceptable leakage of steam/condensate through the bulkhead connection.

The Sterimaster® Chamber/Load Sensor has been designed to withstand these conditions and offers a reliability factor surpassing anything previously obtainable. Every weld undergoes NDT examination and each completed assembly is leak tested.

Sterimaster® is a registered trademark of Thermal Detection Ltd.

Steriwire continuous-wire thermocouples feature a Type T (Copper/Constantan) thermocouple with special limits of error, attached to a nearly unlimited length of insulated stranded thermocouple wire. Optional tipping provides electrical isolation of the thermocouple function from the environment or product. One-inch tipping is standard, but tipping up to 6″ long (in one-inch increments) is available. The simplicity of construction allows these junctions to be configured in the field if required. Plug & Jack terminations made of molded thermoset compounds are also available in miniature and standard sizes.

Sterisensor® withstands the environmental conditions found in pharmaceutical autoclave chambers. Sterisensor’s engineered moisture seal prevents the ingress of moisture which is the leading cause of failure.

Thermocouple Type T or RTD, 100 ohms @0°C, .00385 ohms/ohms/°C calibrations are available, sensor lengths and diameters are configured to meet application requirements.

Sterisensor® is a registered trademark of Conax Technologies and manufactured by Thermal Detection Ltd.