Brand: Honeywell
Model: 2106B2310
Type: Sensepoint HT Flammable Gas Sensor
Series: Sensepoint HT
Core Function: High-Temperature Flammable Gas Detection
Country of Origin: USA / Honeywell Analytics
Condition: New / Used
Availability: In Stock / Contact Us for Availability
Warranty: 12 Months

 

Product Overview

The Honeywell 2106B2310 is a Sensepoint HT Flammable Sensor with ATEX approval and an M20 threaded connection, designed for detecting combustible gases in high-temperature industrial environments.

The sensor is part of the Honeywell Sensepoint family of fixed gas detection equipment and is specifically designed for applications where conventional combustible gas sensors may not be suitable because of elevated ambient temperatures.

Honeywell identifies 2106B2310 as the Sensepoint HT Flammable Sensor (ATEX) M20. The corresponding variants 2106B2311 and 2106B2312 use M25 and 3/4 NPT connections respectively.

The 2106B2310 uses a combustible-gas sensing element and provides an industry-standard mV bridge output to a compatible control system or transmitter.

Main Function

The primary purpose of the 2106B2310 is to detect the presence and concentration of flammable or combustible gases in potentially hazardous industrial areas.

The sensor can be connected to a suitable controller, transmitter or gas-detection system.

A typical detection chain can be represented as:

Combustible Gas

↓

Honeywell Sensepoint HT Sensor

↓

mV Bridge Signal

↓

Gas Detection Controller / Transmitter

↓

Alarm / Shutdown / Monitoring System

This allows the gas detection system to identify potentially dangerous concentrations of combustible gases and initiate appropriate warning or protective actions.

Sensepoint HT High-Temperature Technology

The HT designation refers to the high-temperature capability of this Sensepoint sensor family.

The Honeywell Sensepoint HT sensor is designed for operation over a temperature range of approximately -55°C to +150°C (-67°F to +302°F).

This makes it suitable for industrial locations where elevated ambient temperatures can occur.

Typical high-temperature applications include:

1. Turbine enclosures
2. Drying ovens
3. Solvent-based printing equipment
4. Coating machinery
5. Industrial heating equipment
6. Process areas with elevated ambient temperatures

Honeywell specifically describes the Sensepoint HT family as being intended for high-temperature combustible-gas detection applications.

 

Flammable Gas Detection

The 2106B2310 is designed for combustible gas detection, with the measuring range depending on the associated control system.

Available ranges include:

0–20% LEL

or

0–100% LEL

where LEL means Lower Explosive Limit.

The applicable range depends on the controller or control-card configuration used with the sensor.

LEL-based measurement allows the gas detection system to express the concentration of combustible gas as a percentage of the concentration at which the gas-air mixture can become ignitable.

 

Catalytic-Bead Sensing

The Sensepoint HT combustible sensor uses a matched pair of combustible-gas detection elements designed for stable operation.

The sensing technology is intended to provide reliable detection of combustible gases while maintaining a stable baseline across a wide operating-temperature range.

This stability is particularly important in industrial environments because changes in ambient temperature can otherwise influence sensor behavior.

The sensor is designed to support low-level alarm settings, with Honeywell documentation and product information identifying a minimum alarm level of 5% LEL for the Sensepoint HT application.

 

Response Performance

The 2106B2310 provides a fast response to combustible gas exposure.

Published specifications identify:

1. T60: Less than 6 seconds
2. T90: Less than 10 seconds

These response characteristics allow the sensor to detect developing combustible-gas conditions quickly and provide the associated control system with a timely measurement signal.

Fast response is particularly important in applications where gas accumulation can occur quickly.

 

M20 Threaded Version

The 2106B2310 is the M20 version of the Sensepoint HT flammable sensor.

The Sensepoint HT family also includes:

1. 2106B2310 – ATEX M20
2. 2106B2311 – ATEX M25
3. 2106B2312 – ATEX 3/4 NPT

Honeywell documentation clearly distinguishes these versions according to their mechanical connection.

Therefore, the complete part number should be verified when replacing an existing sensor.

An M20 version should not automatically be substituted with an M25 or 3/4 NPT version even if the sensing technology is otherwise similar.

 

ATEX Application

The 2106B2310 is identified as an ATEX-approved Sensepoint HT flammable sensor.

This makes the sensor suitable for appropriately designed hazardous-area gas detection installations where the relevant ATEX certification requirements apply.

The sensor itself forms part of a complete hazardous-area detection arrangement. The installation must use compatible equipment, wiring, junction boxes and control devices according to the applicable hazardous-area requirements.

Honeywell documentation also references suitable explosion-protected installation arrangements for Sensepoint detectors.

 

mV Bridge Output

Unlike a standard 4–20 mA gas transmitter, the 2106B2310 provides an mV bridge output.

Honeywell identifies the sensor output as an industry-standard 3-wire mV bridge signal.

This means the sensor is normally used together with a compatible control card, transmitter or gas detection controller capable of supplying and interpreting the required bridge signal.

The sensor should therefore not be connected directly to a generic 4–20 mA input without the appropriate interface.

 

Electrical Characteristics

The published Honeywell specifications identify the sensor bridge voltage as approximately 2.9–3.5 V at 200 mA.

Power consumption is approximately 700 mW.

These values should be checked against the actual Honeywell controller or interface being used before commissioning.

 

Environmental Performance

The Sensepoint HT sensor is designed for demanding industrial environments.

Published operating specifications include:

Parameter	Specification
Operating Temperature	-55°C to +150°C
Humidity	20–90% RH continuous
Intermittent Humidity	10–99% RH, non-condensing
Operating Pressure	Approximately 90–110 kPa
Warm-Up Time	Less than 10 minutes
Output	mV Bridge
Power Consumption	Approx. 700 mW
Supply / Bridge Condition	2.9–3.5 V at 200 mA

The operating limits should be evaluated together with the installation environment and the associated gas-detection controller.

 

Typical Applications

The Honeywell 2106B2310 is particularly suitable for industrial areas where combustible gas detection is required at elevated temperatures.

Typical applications include:

1. Gas turbine enclosures
2. Industrial drying ovens
3. Solvent-based printing machinery
4. Coating systems
5. Petrochemical processing
6. Oil and gas facilities
7. Chemical processing
8. Industrial heating equipment
9. Hazardous-area process equipment
10. High-temperature machinery enclosures

Honeywell specifically identifies turbine enclosures and solvent-based printing and coating equipment among the applications for the Sensepoint HT sensor.

 

Gas Detection System Integration

The 2106B2310 is normally installed as one component of a complete fixed gas detection system.

A typical architecture is:

Sensepoint HT Sensor

↓

Junction Box / Field Connection

↓

Compatible Gas Detection Controller

↓

Alarm and Monitoring System

↓

Plant Safety / Shutdown System

The sensor provides the primary gas measurement while the associated controller handles signal processing, alarm logic and system-level functions.

This architecture allows the Sensepoint HT to be incorporated into larger industrial safety and gas monitoring systems.

 

Installation Considerations

When installing or replacing a 2106B2310, several factors should be checked.

Important considerations include:

1. M20 threaded connection
2. Hazardous-area classification
3. Sensor location
4. Expected combustible gases
5. Ambient temperature
6. Controller compatibility
7. Bridge-signal compatibility
8. Calibration requirements
9. Gas flow and ventilation
10. Applicable ATEX requirements

The sensor should be installed in accordance with Honeywell documentation and the applicable hazardous-area installation standards.

 

Calibration and Maintenance

Regular calibration is an important part of combustible-gas detection system maintenance.

The sensor output should be checked against an appropriate calibration gas and the associated control system should be adjusted according to the manufacturer’s procedures.

Maintenance activities can include:

1. Zero verification
2. Span calibration
3. Sensor response testing
4. Cable inspection
5. Connection inspection
6. Filter inspection
7. Environmental condition inspection
8. Alarm verification
9. Controller diagnostics
10. Sensor replacement when required

Honeywell’s troubleshooting documentation specifically identifies zero adjustment and control-system range adjustment as possible corrective actions for incorrect sensor readings.

 

Replacement Considerations

When sourcing a replacement for Honeywell 2106B2310, the complete part number should be matched.

Important verification points include:

1. Part number: 2106B2310
2. Product family: Sensepoint HT
3. Gas type: Flammable / Combustible
4. Certification: ATEX
5. Connection: M20
6. Temperature requirement
7. Measuring range
8. Output type
9. Existing controller
10. Installation environment

The connection type is especially important because 2106B2311 and 2106B2312 are mechanically different variants of the same Sensepoint HT family.

 

Related Honeywell Models

Related Sensepoint HT products include:

1. 2106B2310 – Sensepoint HT Flammable Sensor, ATEX, M20
2. 2106B2311 – Sensepoint HT Flammable Sensor, ATEX, M25
3. 2106B2312 – Sensepoint HT Flammable Sensor, ATEX, 3/4 NPT
4. 2106B1200 – Sensepoint Flammable Sensor, M20
5. 2106B1201 – Sensepoint Flammable Sensor, M25
6. 2106B1202 – Sensepoint Flammable Sensor, M26
7. 2106B1204 – Sensepoint Flammable Sensor, 3/4 NPT

Honeywell’s product documentation distinguishes the high-temperature 2106B23xx family from the standard-temperature Sensepoint flammable sensors.

 

Technical Specifications

Parameter	Specification
Manufacturer	Honeywell
Product Family	Sensepoint HT
Model	2106B2310
Product Type	Flammable Gas Sensor
Certification	ATEX
Connection	M20
Detection Type	Combustible / Flammable Gas
Measuring Range	0–20% LEL / 0–100% LEL, controller dependent
Output	3-Wire mV Bridge
Response T60	<6 seconds
Response T90	<10 seconds
Minimum Alarm Level	5% LEL
Operating Temperature	-55°C to +150°C
Humidity	20–90% RH continuous
Power Consumption	Approx. 700 mW
Bridge Current	200 mA
Application	High-Temperature Gas Detection

The above specifications are based on Honeywell documentation and supporting technical listings for the Sensepoint HT 2106B2310.

 

Verification & Quality Control

Because the 2106B2310 is a gas-detection sensor used in potentially hazardous environments, product verification is especially important.

Recommended inspection includes:

1. Part-number verification
2. ATEX marking inspection
3. M20 thread inspection
4. Sensor housing inspection
5. Sensing-element condition
6. Connector inspection
7. Filter condition
8. Signs of corrosion
9. Signs of mechanical damage
10. Date / production information where available
11. Functional response testing where technically possible

For unused stock, the original packaging and identification markings should also be checked.

 

Product Summary

The Honeywell 2106B2310 is a Sensepoint HT Flammable Sensor (ATEX M20) designed for detecting combustible gases in demanding industrial environments.

Its high-temperature operating capability of up to +150°C, combined with an industry-standard 3-wire mV bridge output, makes it suitable for applications where conventional flammable-gas sensors may not provide the required temperature performance.

The sensor supports 0–20% LEL or 0–100% LEL measurement depending on the associated control system, with published response times of less than 6 seconds for T60 and less than 10 seconds for T90.

For replacement projects, the complete 2106B2310 part number should be verified carefully, especially the ATEX certification and M20 connection, before ordering.

 

Related Tags

Type: Flammable Gas Sensor, Combustible Gas Detector, High-Temperature Gas Sensor, LEL Sensor
Function: Flammable Gas Detection, LEL Monitoring, Hazardous Area Detection, Gas Safety Monitoring
System: Honeywell Sensepoint, Sensepoint HT, Fixed Gas Detection System, Gas Safety System
Field: Oil & Gas, Petrochemical, Chemical Processing, Gas Turbine, Printing, Coating, Industrial Safety
Procurement: Honeywell Gas Detector Spare Parts, Sensepoint HT Replacement, 2106B2310 Replacement, Honeywell Flammable Sensor, ATEX Gas Detector