Description
Honeywell 2106B2310 Sensepoint HT Flammable Sensor
Key Technical Specifications
- Sensor type: Sensepoint HT high-temperature flammable sensor.
- Part number: 2106B2310.
- Detection method: Catalytic bead sensing technology.
- Target: Combustible / flammable gases expressed as % LEL.
- Output: Industry-standard mV bridge signal rather than a native 4–20 mA transmitter output.
- Range: 0–20% LEL or 0–100% LEL depending on the connected control system.
- High-temperature operation: Up to +150°C; published specifications give a range down to approximately -55°C.
- Alarm setting: The HT sensor design permits alarm thresholds as low as approximately 5% LEL.
- Connection: M20 version.
- Hazardous-area approval: ATEX.
- Response: Published data gives T60 below 6 seconds and T90 below 10 seconds.
- Power consumption: Approximately 0.7 W at 200 mA according to published technical data.
- Humidity: Continuous operation around 20–90% RH and intermittent exposure up to 99% RH, non-condensing, according to published specifications.
- Pressure: Approximately 75–110 kPa in published technical data.
Product Introduction
Honeywell 2106B2310 Sensepoint HT Flammable Sensor
The Honeywell 2106B2310 is a Sensepoint HT high-temperature flammable gas sensor intended for combustible-gas monitoring in hazardous areas where conventional sensors cannot tolerate the process temperature. It uses catalytic-bead technology and provides an mV bridge output for connection to a compatible gas detection controller or suitable DCS/PLC interface.
The 2106B2310 is the M20 ATEX configuration. Its high-temperature specification extends to approximately +150°C, making it particularly relevant to applications such as turbine enclosures, drying equipment and other heated process areas.
2106B2310
Application Scenarios & Field Pitfalls — Engineer’s Perspective
The 2106B2310 is aimed at fixed combustible-gas detection where the sensor installation point can experience elevated temperatures. It is not a standalone gas-monitoring controller. The sensor requires appropriate signal processing, alarm logic and power/interface equipment elsewhere in the installation.
Typical Applications
- Gas turbine enclosures — monitoring combustible-gas accumulation around heated machinery.
- Industrial drying ovens — high ambient temperature makes ordinary combustible-gas sensors unsuitable.
- Heated process equipment — fixed LEL monitoring around high-temperature process zones.
- Hazardous-area installations — suitable for appropriately engineered ATEX installations using the required certified connection hardware.
Field Warnings
1. Do not treat the mV bridge output as a normal 4–20 mA transmitter.
The 2106B2310 produces an mV bridge signal. The receiving controller must be designed for the Sensepoint catalytic sensor interface.
2. The sensor is not the complete gas detection system.
It does not provide the display, alarm relays or independent alarm logic normally associated with a gas controller. A suitable controller/interface is required.
3. Check the M20 mechanical configuration.
The 2106B2310 is specifically the M20 version. Related Sensepoint HT part numbers use different entry configurations, so substitution by part-family name alone is not sufficient.
4. Confirm the actual gas and measuring range.
The sensor can be configured for different LEL ranges through the associated control equipment. Do not assume that every installed 2106B2310 system is configured for the same alarm/range values.
5. Verify hazardous-area installation details.
The sensor is intended for hazardous-area use with appropriate certified Ex d/Ex e installation hardware. Junction-box selection, cable entry and certification must match the site classification.
Related Products
- 2106B2311 — Sensepoint HT flammable sensor with a different mechanical entry configuration; M25 version.
- 2106B2312 — Sensepoint HT flammable sensor using a 3/4-inch NPT configuration.
- 2106B0001 — Sensepoint explosion-proof junction box/accessory.
- SP-WPC — Weather protection cap for suitable Sensepoint installations.
- SP-DK — Duct mounting kit.
- SP-FA — Flow adaptor.
- SP-CC — Gas collecting cone.
- Sensepoint XCD controller — compatible control-system family for applicable Sensepoint installations.
Procurement Note
For 2106B2310, verify the complete installation rather than matching only the Sensepoint family name.
Before replacement, confirm:
- Full part number: 2106B2310
- M20 mechanical entry
- ATEX certification requirement
- High-temperature operating conditions
- Target combustible gas
- Required LEL range
- mV bridge interface compatibility
- Associated controller/interface
- Junction-box and cable-entry certification
- Sensor age and calibration history
Most important identification point: 2106B2310 is a Sensepoint HT catalytic flammable-gas sensor with an mV bridge output. It is not a 4–20 mA analog input module, PLC card, or standalone gas controller.
