volume converters
TCI250 Temperature Compensating Index
Designed to help gas utilities and industrial operators improve measurement accuracy while simplifying installation and field maintenance.
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Overview
The TCI250 Temperature Compensating Index is built for gas distribution companies and commercial and industrial operators who need confidence in every cubic foot measured. Designed for direct mounting on rotary gas meters, the TCI250 delivers accurate, repeatable temperature compensation using a temperature input helping support fair billing, reliable custody transfer, and clear operational visibility.
By combining a compact footprint, universal compatibility with leading rotary meters, and more secure connectivity options, the TCI250 helps operators protect revenue and reduce lost and unaccounted gas. At the same time, it simplifies installation, commissioning, and ongoing maintenance—so teams can spend less time in the field and more time focused on safer and efficient network operation.
Key Benefits
Honeywell brings decades of experience in gas measurement and control, delivering solutions trusted by utilities and operators worldwide. The TCI250 reflects Honeywell’s commitment to accuracy, cybersecurity, and future ready‑ connectivity, helping customers protect revenue, improve operational efficiency, and maintain compliance as energy requirements evolve.
By combining a compact footprint, universal compatibility with leading rotary meters, and more secure connectivity options, the TCI250 helps operators protect revenue and reduce lost and unaccounted gas. At the same time, it simplifies installation, commissioning, and ongoing maintenance—so teams can spend less time in the field and more time focused on safer and efficient network operation.
Key Benefits
- Accurate, Reliable Temperature Compensation Corrects measured gas volume using a temperature input, with redundant volume sensing to reduce the risk of lost or unaccounted gas and support reliable billing and custody transfer.
- Universal Direct Mounting Designed for direct installation on rotary gas meters, enabling fast deployment across mixed installed bases with minimal installation effort.
- 24/7 Connectivity AMR ready and compatible with leading systems such as Itron, Aclara, and Sensus, with optional Honeywell CloudLink 5G cellular connectivity for more secure, automated data transmission.
- Cybersecurity by Design Developed to meet modern security requirements, including ANSI/ISA62443 and IEC 62443 compliance, ISASecure® SDLA certification, and TLS encryption to help protect critical measurement data.
- Commercial and industrial metering stations
- Gas distribution networks
- Custody transfer and billing applications
- Sites requiring compact, direct mounted‑ temperature compensation
- Operators seeking remote visibility and reduced site visits
- Gas Distribution Billing & Custody Transfer Used at distribution metering points where accurate volume correction is required for billing and custody transfer.
- Commercial & Industrial Metering Stations Ideal for C&I sites that require reliable gas volume measurement for operational monitoring and billing accuracy, with compact direct mounting to rotary meters and minimal installation complexity.
- Remote Monitoring & Automated Data Collection Deployed at sites requiring automated volume data transmission to meter data management or monitoring systems.
- Standardization Across Mixed Rotary Meter Fleets Used by operators managing rotary meters from multiple manufacturers and universal direct mounting
- CSA and IECEx hazardous location approvals (pending)
- Class I, Div. 1 / Zone 0 and Class I, Div. 2 / Zone 2 ratings (pending)
- Designed to support regulatory and custody transfer requirements
(Metrological approvals pending)
Honeywell brings decades of experience in gas measurement and control, delivering solutions trusted by utilities and operators worldwide. The TCI250 reflects Honeywell’s commitment to accuracy, cybersecurity, and future ready‑ connectivity, helping customers protect revenue, improve operational efficiency, and maintain compliance as energy requirements evolve.
Specifications
Applications & Compatibility
- Compatible Meter Types
- Compatible Meter Types
- Dresser LMMA and B3
- Romet RM and RMT
- Applications
- Accurate gas volume measurement with temperature compensation
- Ideal replacement for mechanical TC indexes and Mercury TCI
- Supports AMR (Automatic Meter Reading) connections
- Mounting
- Integrated Rotary mount for leading brand rotary gas meters
Processing & Performance Metrics
- Temperature Accuracy
- Maximum error at reference conditions: ±0.1% of reading
- Accuracy
- - Temperature: ±0.1% of reading
- Including linearity, repeatability, and hysteresis
- Maximum error over the full temperature range -40°F to 149°F (-40°C to 65°C)
Functional & Control Features
- Remote Upgrade
- via Firmware-over-the-air (FOTA)
- Audit Trail
- Single, configurable and flexible audit trail with up to 10 items w/ configurable interval: 1,5,10,15,30 minutes, hourly, daily, monthly, Year plus capacity hourly logging
Environmental Conditions
- Ambient Temperature Effects
- -40°F to 149°F (-40°C to 65°C)
- Relative Humidity
- 0 to 95% (Non-condensing)
Electrical Specifications
- External Power Supply
- No
- Power Supply
- Battery powered
- Battery Life
- Alkaline receptacle: up to 5 years
- Lithium batteries: up to 15 years
- Battery
- Alkaline, Lithium
I/O Capabilities
- Inputs
- Redundant high frequency Wiegand sensor input
- Inputs/Outputs/Interfaces
- RS232 local configuration port plus RS232/485 serial interface
- Temperature Sensors
- RTD Temperature Sensor
- Outputs
- 4 Digital outputs (volume pulse + alarm), AMR-Ready and compatible with Itron, Aclara & Sensus AMR Devices
Software & Interface
- Configuration Software
- MasterLink
- Display
- Multi-line Display with Single push button operation
Communication & Protocols
- Communication Protocols
- Mercury Instruments
- Communication
- Optional class I Div. 1 cellular radio modem CloudLink 5G
Standards & Certifications
- Metrological Approvals
- Measurement Canada (pending)
- Explosion Protection
- Ambient Temperature: -40 °C to +65 °C
- CSA IECx (in progress):
- Class I, Zone 2 AEx ic IIB Gc
- IECEx: Ex ia IIB + H2 T4 Ga
- IECEx: Ex ic IIB + H2 T4 Gc
- Intrinsically Safe, Class I, Division 1 Groups B, C, D T4
- Non Incendive Field Wiring, Class I, Division 2 Groups B, C, D T4
- Non Incendive, Class I, Division 2 Groups B, C, D T4
- Protection Class
- NEMAX 4
Applications & Compatibility
- Compatible Meter Types
- Compatible Meter Types
- Dresser LMMA and B3
- Romet RM and RMT
- Applications
- Accurate gas volume measurement with temperature compensation
- Ideal replacement for mechanical TC indexes and Mercury TCI
- Supports AMR (Automatic Meter Reading) connections
- Mounting
- Integrated Rotary mount for leading brand rotary gas meters
Processing & Performance Metrics
- Temperature Accuracy
- Maximum error at reference conditions: ±0.1% of reading
- Accuracy
- - Temperature: ±0.1% of reading
- Including linearity, repeatability, and hysteresis
- Maximum error over the full temperature range -40°F to 149°F (-40°C to 65°C)
Functional & Control Features
- Remote Upgrade
- via Firmware-over-the-air (FOTA)
- Audit Trail
- Single, configurable and flexible audit trail with up to 10 items w/ configurable interval: 1,5,10,15,30 minutes, hourly, daily, monthly, Year plus capacity hourly logging
Environmental Conditions
- Ambient Temperature Effects
- -40°F to 149°F (-40°C to 65°C)
- Relative Humidity
- 0 to 95% (Non-condensing)
Electrical Specifications
- External Power Supply
- No
- Power Supply
- Battery powered
- Battery Life
- Alkaline receptacle: up to 5 years
- Lithium batteries: up to 15 years
- Battery
- Alkaline, Lithium
I/O Capabilities
- Inputs
- Redundant high frequency Wiegand sensor input
- Inputs/Outputs/Interfaces
- RS232 local configuration port plus RS232/485 serial interface
- Temperature Sensors
- RTD Temperature Sensor
- Outputs
- 4 Digital outputs (volume pulse + alarm), AMR-Ready and compatible with Itron, Aclara & Sensus AMR Devices
Software & Interface
- Configuration Software
- MasterLink
- Display
- Multi-line Display with Single push button operation
Communication & Protocols
- Communication Protocols
- Mercury Instruments
- Communication
- Optional class I Div. 1 cellular radio modem CloudLink 5G
Standards & Certifications
- Metrological Approvals
- Measurement Canada (pending)
- Explosion Protection
- Ambient Temperature: -40 °C to +65 °C
- CSA IECx (in progress):
- Class I, Zone 2 AEx ic IIB Gc
- IECEx: Ex ia IIB + H2 T4 Ga
- IECEx: Ex ic IIB + H2 T4 Gc
- Intrinsically Safe, Class I, Division 1 Groups B, C, D T4
- Non Incendive Field Wiring, Class I, Division 2 Groups B, C, D T4
- Non Incendive, Class I, Division 2 Groups B, C, D T4
- Protection Class
- NEMAX 4
- Compatible Meter Types : Compatible Meter Types|Dresser LMMA and B3|Romet RM and RMT
- Applications : Accurate gas volume measurement with temperature compensation|Ideal replacement for mechanical TC indexes and Mercury TCI|Supports AMR (Automatic Meter Reading) connections
- Mounting : Integrated Rotary mount for leading brand rotary gas meters
- Temperature Accuracy : Maximum error at reference conditions: ±0.1% of reading
- Accuracy : - Temperature: ±0.1% of reading|Including linearity, repeatability, and hysteresis|Maximum error over the full temperature range -40°F to 149°F (-40°C to 65°C)
- Remote Upgrade : via Firmware-over-the-air (FOTA)
- Audit Trail : Single, configurable and flexible audit trail with up to 10 items w/ configurable interval: 1,5,10,15,30 minutes, hourly, daily, monthly, Year plus capacity hourly logging
- Ambient Temperature Effects : -40°F to 149°F (-40°C to 65°C)
- Relative Humidity : 0 to 95% (Non-condensing)
- External Power Supply : No
- Power Supply : Battery powered
- Battery Life : Alkaline receptacle: up to 5 years|Lithium batteries: up to 15 years
- Battery : Alkaline, Lithium
- Inputs : Redundant high frequency Wiegand sensor input
- Inputs/Outputs/Interfaces : RS232 local configuration port plus RS232/485 serial interface
- Temperature Sensors : RTD Temperature Sensor
- Outputs : 4 Digital outputs (volume pulse + alarm), AMR-Ready and compatible with Itron, Aclara & Sensus AMR Devices
- Configuration Software : MasterLink
- Display : Multi-line Display with Single push button operation
- Communication Protocols : Mercury Instruments
- Communication : Optional class I Div. 1 cellular radio modem CloudLink 5G
- Metrological Approvals : Measurement Canada (pending)
- Explosion Protection : Ambient Temperature: -40 °C to +65 °C|CSA IECx (in progress):|Class I, Zone 2 AEx ic IIB Gc|IECEx: Ex ia IIB + H2 T4 Ga|IECEx: Ex ic IIB + H2 T4 Gc|Intrinsically Safe, Class I, Division 1 Groups B, C, D T4|Non Incendive Field Wiring, Class I, Division 2 Groups B, C, D T4|Non Incendive, Class I, Division 2 Groups B, C, D T4
- Protection Class : NEMAX 4
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TC250
TEMPERATURE COMPENSATING INDEX
TC250
TEMPERATURE COMPENSATING INDEX
