Landis+Gyr Model 750 High Capacity Gas Meter

The Landis+Gyr Model 750 High Capacity Gas Meter is a durable and high-performance solution designed for accurate and long-term gas measurement in residential and commercial applications. Known for its slow revving speed, the Model 750 incorporates a 2-liter diaphragm per cycle, operating at 40% slower than its 1.2-liter counterparts. This design minimizes the wear of internal components, resulting in significantly reduced wear rates and ensuring exceptional accuracy retention over time.

With a gas flow capacity of 7.5 m³/h of Natural Gas (SG 0.62) or 6 m³/h of Air at a 125 Pa pressure drop, the Model 750 is engineered to provide reliable and accurate measurements for extended periods, exceeding 20 years of service life. The meter’s low pressure absorption ensures longevity and minimal mechanical wear, reducing maintenance costs and extending the meter's operational life.

The Model 750 is pulse-ready, allowing for retrofitting with a pulse output module for advanced metering applications. It is also equipped with a magnetically driven index, reducing mechanical wear and enhancing long-term accuracy retention. For added convenience, the meter can be fitted with an optional top-read index, particularly useful for installations at lower heights.

Rigorous endurance testing and adherence to global standards—EN1359:1999, ANSI B109.1, AS4647:2005, and OIML Recommendation 31—demonstrate the Model 750’s robust performance and outstanding accuracy retention.

Specifications:

• Gas Compatibility:

  • Natural gas

  • Town gas

  • Propane

  • Butane

  • LPG

  • Inert gases (For other gases, consultation with Landis+Gyr is recommended)

• Temperature Range: -10°C to +65°C

• Flow Capacity:

  • 7.5 m³/h (Natural Gas at 125 Pa pressure drop)

  • 6 m³/h (Air at 125 Pa pressure drop)

• Cyclic Volume: 0.002 m³ (2 liters)

• Working Pressure: Refer to meter index badge for specific pressure ratings

• Index:

  • Anti-fog, hydrophilic-coated 8-digit index

  • 5 whole cubic meters (white numbers on black wheels)

  • 3 decimal places (white numbers on red wheels)

• Index Drive:

  • Magnetically driven index

  • Low mechanical wear

• Meter Boss Threads:

  • Vertical inlet/outlet threads, 1” to BS746 1987 at 152mm (6”) centers

  • 1” 10 Lt. to 3/4” BSP Cap Nut and Liner set available (part number SK5)

• Case Construction:

  • Pressure die-cast aluminum

  • Weight: 2.75 kg

• Pulse Output:

  • Pulse ready, fitted with a magnet in the far right index wheel

  • 1 pulse per 10 liters

  • Pulse retrofittable with IN-Z61 or IN-Z62 pulse module

• Corrosion Protection:

  • Alodine internal and external pre-treatment of castings

  • Baked polyester powder coat for maximum corrosion protection

• Optional Features:

  • Top-read index

  • Viton o-rings for aggressive gas applications

• Compliance:

  • Designed to meet EN1359 and AS4647:2005 standards

Endurance tested to meet European Standard EN1359:1999, ANSI B109.1, AS4647:2005, and OIML Recommendation 31