2110B1822 HONEYWELL

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The Honeywell 2110B1822 is a specific model within the Sensepoint XCD series, a high-performance gas transmitter used for monitoring toxic gas hazards in industrial environments. This particular unit is an XCD Hydrogen ($H_{2}$) transmitter, specifically configured as an ATEX/IECEx approved model. It is designed to provide comprehensive monitoring of hydrogen gas levels, featuring an integral explosion-proof housing and a clear, backlit LCD display for real-time local monitoring. The device utilizes a high-quality electrochemical sensor to detect gas concentrations and provides a standard 4-20mA output alongside programmable relay contacts for alarm and fault signaling.

Technical Specifications

The 2110B1822 operates on a standard 24V DC input voltage, with a functional range from 16V to 32V DC. As an electrochemical sensor device, it is calibrated for Hydrogen ($H_{2}$) detection with a default scale of 0-1000 ppm (parts per million), though the range can be adjusted via the internal menu. The unit provides a linear 4-20mA signal output and features three fully programmable SPDT (Single Pole Double Throw) relays rated at 5A at 250V AC. The housing is constructed from rugged LM25 aluminum with an epoxy paint finish, providing an IP66 environmental protection rating. For installation, it features two M20 cable entries. The operating temperature range for the sensor and transmitter assembly typically spans from $-40\text{°C}$ to $+65\text{°C}$, depending on local regulatory certifications and humidity levels.

Product Advantages

One of the primary advantages of the 2110B1822 is its "one-man" non-intrusive operation. Using a magnetic tool, technicians can calibrate the device and navigate the menus through the glass window without opening the explosion-proof transmitter housing, which maintains site safety by avoiding "hot work" permits. The tri-color backlit display is another significant benefit, changing color based on the status: green for normal operation, yellow for a fault or warning, and red for an alarm condition. This allows operators to identify the status of the gas hazard from a distance. Furthermore, the common transmitter platform across the Sensepoint XCD range reduces spare parts inventory and training requirements for maintenance personnel.

Important Considerations and Safety Precautions

When installing or maintaining the 2110B1822, it is crucial to ensure that the power supply is disconnected before opening the enclosure in a hazardous area, unless the atmosphere is known to be safe. Since this is an electrochemical sensor, it must be calibrated regularly to ensure accuracy, as sensitivity can drift over time or due to environmental exposure. Users must ensure the M20 cable entries are sealed with appropriate flameproof glands or plugs to maintain the integrity of the explosion-proof rating. Additionally, the sensor should be mounted in a location where hydrogen gas is most likely to accumulate—typically at high points, as hydrogen is lighter than air—while remaining accessible for routine maintenance and calibration.

Product Applications

The Honeywell 2110B1822 is widely used in industries where hydrogen gas is produced, stored, or utilized as part of a process. Common applications include battery charging rooms, where hydrogen gas is a byproduct of lead-acid battery charging, and power generation facilities where hydrogen is used for generator cooling. It is also found in the chemical and petrochemical industries for process monitoring, hydrogen refueling stations for fuel cell vehicles, and in laboratories or industrial manufacturing plants where hydrogen is used as a shielding gas or reagent. Its robust design makes it suitable for both indoor and outdoor installations in harsh environments, including offshore platforms and heavy industrial sites.

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