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gas analysis equipment

EnCal 3000 proChain

The Honeywell Elster® EnCal 3000 proChain - cost-effective online natural gas composition measurement for accurate energy calculation.

Overview
The EnCal 3000 proChain is an explosion safe online gas chromatograph designed for natural gas applications where accurate heating value and gas composition measurement are mission critical. Built on Honeywell’s proprietary MEMS technology, EnCal 3000 proChain delivers ultralow helium consumption, high reliability, and long-term operational savings—making it an ideal solution for custody transfer, transmission and distribution networks, and industrial energy users.

Why EnCal 3000 proChain?
Lowest Helium Consumption in Its Class
EnCal 3000 proChain reduces helium usage through a patented MEMS-based measuring design with minimized internal volume. This helps lower ongoing operating costs and reduces the need for frequent helium bottle replacements.

Designed for Reliability and Low Maintenance
With only one moving part, EnCal 3000 proChain minimizes wear and maintenance requirements. The robust design supports long service intervals, fewer site visits, and extended replacement cycles—helping operators to lower total cost of ownership and improve uptime.

Cybersecure by Design
Developed in accordance with Honeywell’s secure development lifecycle, EnCal 3000 proChain provides strong cybersecurity features to protect measurement integrity and operational data. Secure communications and controlled configuration help address increasing cybersecurity requirements in gas metering infrastructures.

Key Benefits
  • Significant OPEX reduction through ultra low helium consumption and reduced maintenance
  • Minimal helium bottle changes, typically one bottle every seven years
  • High measurement accuracy enabled by proprietary MEMS technology
  • Improved reliability with a single-moving-part design
  • Enhanced cybersecurity compared to traditional gas chromatographs
  • Extended asset lifetime, delaying replacement by up to five years
Who It’s For
  • Transmission System Operators (TSOs)
  • Distribution System Operators (DSOs)
  • Industrial energy users such as glass manufacturing and power generation
  • Service managers and operational leaders responsible for custody transfer measurement
Common Applications
  • Custody transfer and fiscal metering
  • Incoming gas quality verification
  • Transmission and distribution networks
  • Burner control and industrial energy management
Solving Today’s Natural Gas Measurement Challenges
Operators face growing pressure to reduce operating costs, improve billing accuracy, strengthen cybersecurity, and support methane emissions reporting. EnCal 3000 proChain addresses these challenges by delivering reliable, low maintenance gas composition measurements with secure data access—helping minimize unaccounted gas and reducing operational risk.
Specifications

Environmental Conditions

  • Analysis Range
    • Up to C6+
  • Operating Temperature Range
    • Safety: -40 to +60 deg C; Metrology: -25 to +55 deg C
  • Gas Composition Range
    • CH4: 55 to 100%, N2: 0 to 20%, CO2: 0 to 20%, C2H6: 0 to 30%, C3H8: 0 to 20%, i-C4H10: 0 to 3%, n-C4H10: 0 to 3%, neo to C5H12: 0 to 1%, i-C5H12: 0 to 1%, n-C5H12: 0 to 1%, C6+: 0 to 0.5

Overview

  • Series
    • Elster® EnCal 3000

Measurement & Sensor Related (Measurement Capabilities)

  • Repeatability
    • =0.015% for calculated Heating values

Electrical Specifications

  • Power Supply
    • No Heating: 24 VDC/3 A (16 W Typical, 30 W Max, 60 W Peak)
    • With Heaters: 24 VDC/5A (max 120 W)

Processing & Performance Metrics

  • PC Requirement
    • Windows 7+, 1024x768 graphics, 10GB HDD, 1GB RAM, Java SE 8

Standards & Certifications

  • Metrological Approvals
    • NMi Approval According OIML R140 Class A
  • Approvals
    • ATEX/IECEx/NEPSI: Exd Zone 1 IIC T6
    • EMC EN 61000-6-2/4
    • cCSAus: Class I/Div 1 BCD

Communication Interfaces

  • Interfaces
    • Internal/External USB, Ethernet (ModBus/Config), 2x RS485 (ModBus), Digital I/O

Dimensions & Weight

  • Dimensions
    • 37 cm Base Dia x 37 cm H (14 in Dia x 14 in H)

Communication & Protocols

  • Data Logging
    • 2000 chromatograms (~4 days)
    • Local storage: last 100 days (analysis%, events%, alarms%, averages%, calibration)

Analytical / Technical Specifications

  • Analytical Hardware
    • 2 MEMS Columns/single Column Train, Backflush-to-detector Configuration, Temperature Ramped

I/O Capabilities

  • Analysis Time
    • 3 min for C6+ Analysis

Environmental Conditions

  • Analysis Range
    • Up to C6+
  • Operating Temperature Range
    • Safety: -40 to +60 deg C; Metrology: -25 to +55 deg C
  • Gas Composition Range
    • CH4: 55 to 100%, N2: 0 to 20%, CO2: 0 to 20%, C2H6: 0 to 30%, C3H8: 0 to 20%, i-C4H10: 0 to 3%, n-C4H10: 0 to 3%, neo to C5H12: 0 to 1%, i-C5H12: 0 to 1%, n-C5H12: 0 to 1%, C6+: 0 to 0.5

Overview

  • Series
    • Elster® EnCal 3000

Measurement & Sensor Related (Measurement Capabilities)

  • Repeatability
    • =0.015% for calculated Heating values

Electrical Specifications

  • Power Supply
    • No Heating: 24 VDC/3 A (16 W Typical, 30 W Max, 60 W Peak)
    • With Heaters: 24 VDC/5A (max 120 W)

Processing & Performance Metrics

  • PC Requirement
    • Windows 7+, 1024x768 graphics, 10GB HDD, 1GB RAM, Java SE 8

Standards & Certifications

  • Metrological Approvals
    • NMi Approval According OIML R140 Class A
  • Approvals
    • ATEX/IECEx/NEPSI: Exd Zone 1 IIC T6
    • EMC EN 61000-6-2/4
    • cCSAus: Class I/Div 1 BCD

Communication Interfaces

  • Interfaces
    • Internal/External USB, Ethernet (ModBus/Config), 2x RS485 (ModBus), Digital I/O

Dimensions & Weight

  • Dimensions
    • 37 cm Base Dia x 37 cm H (14 in Dia x 14 in H)

Communication & Protocols

  • Data Logging
    • 2000 chromatograms (~4 days)
    • Local storage: last 100 days (analysis%, events%, alarms%, averages%, calibration)

Analytical / Technical Specifications

  • Analytical Hardware
    • 2 MEMS Columns/single Column Train, Backflush-to-detector Configuration, Temperature Ramped

I/O Capabilities

  • Analysis Time
    • 3 min for C6+ Analysis
  • Analysis Range : Up to C6+
  • Series : Elster® EnCal 3000
  • Repeatability : =0.015% for calculated Heating values
  • Power Supply : No Heating: 24 VDC/3 A (16 W Typical, 30 W Max, 60 W Peak)|With Heaters: 24 VDC/5A (max 120 W)
  • PC Requirement : Windows 7+, 1024x768 graphics, 10GB HDD, 1GB RAM, Java SE 8
  • Operating Temperature Range : Safety: -40 to +60 deg C; Metrology: -25 to +55 deg C
  • Metrological Approvals : NMi Approval According OIML R140 Class A
  • Interfaces : Internal/External USB, Ethernet (ModBus/Config), 2x RS485 (ModBus), Digital I/O
  • Gas Composition Range : CH4: 55 to 100%, N2: 0 to 20%, CO2: 0 to 20%, C2H6: 0 to 30%, C3H8: 0 to 20%, i-C4H10: 0 to 3%, n-C4H10: 0 to 3%, neo to C5H12: 0 to 1%, i-C5H12: 0 to 1%, n-C5H12: 0 to 1%, C6+: 0 to 0.5
  • Dimensions : 37 cm Base Dia x 37 cm H (14 in Dia x 14 in H)
  • Data Logging : 2000 chromatograms (~4 days)|Local storage: last 100 days (analysis%, events%, alarms%, averages%, calibration)
  • Approvals : ATEX/IECEx/NEPSI: Exd Zone 1 IIC T6|EMC EN 61000-6-2/4|cCSAus: Class I/Div 1 BCD
  • Analytical Hardware : 2 MEMS Columns/single Column Train, Backflush-to-detector Configuration, Temperature Ramped
  • Analysis Time : 3 min for C6+ Analysis
Brochure
Name
Description
File Size
Date
Size
The EnCal 3000 proChain is an Ex-d type analyzer, designed for installation in hazardous areas. This makes it possible to install the analyzer near the sampling point and, if required, outdoors.
application/pdf 209.64 KB
4/9/2026
209.64 KB
Brief
Name
Description
File Size
Date
Size
The Honeywell measurement portfolio for the natural gas sector is designed to provide reliable and accurate volume and energy value measurement across a wide range of applications.
application/pdf 651.9 KB
10/31/2023
651.9 KB
Certificate
Name
Description
File Size
Date
Size
Evaluation Report ER11244R3
application/pdf 335.46 KB
4/17/2026
335.46 KB
Evaluation Certificate TC11244R3
application/pdf 929.58 KB
4/17/2026
929.58 KB
Name
Description
File Size
Date
Size
The EnCal 3000 proChain is an Ex-d type analyzer, designed for installation in hazardous areas. This makes it possible to install the analyzer near the sampling point and, if required, outdoors.
application/pdf 209.64 KB
4/9/2026
209.64 KB
Evaluation Report ER11244R3
application/pdf 335.46 KB
4/17/2026
335.46 KB
Evaluation Certificate TC11244R3
application/pdf 929.58 KB
4/17/2026
929.58 KB
The Honeywell measurement portfolio for the natural gas sector is designed to provide reliable and accurate volume and energy value measurement across a wide range of applications.
application/pdf 651.9 KB
10/31/2023
651.9 KB
Name
Description
File Size
Date
Size
The EnCal 3000 proChain is an Ex-d type analyzer, designed for installation in hazardous areas. This makes it possible to install the analyzer near the sampling point and, if required, outdoors.
209.64 KB
4/9/2026
The Honeywell measurement portfolio for the natural gas sector is designed to provide reliable and accurate volume and energy value measurement across a wide range of applications.
651.9 KB
10/31/2023
Evaluation Report ER11244R3
335.46 KB
4/17/2026
Evaluation Certificate TC11244R3
929.58 KB
4/17/2026
Name
Description
File Size
Date
Size
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