NECI

Micro Motion SGM Gas Specific Gravity Meter

Micro Motion SGM Gas Specific Gravity Meter

A Gas Specific Gravity Meter designed to provide a fast-response, direct measurement of gas specific gravity, molecular weight and relative density.

Specs

Specific gravity range

0.1 to 3 typical

Accuracy

Up to ± 0.1% of reading

Reference chamber pressure

1.2 to 7.0 bar absolute at 20 °C (17 to 101 psi absolute at 68 °F)

Supply pressure

Minimum1.4 bara (20 psia)

Maximum 12 bara (174 psia)

Temperature range

–18 °C to +50 °C (–0 °F to +122 °F)

Materials

• Interior liner: 416 stainless steel
• Pressure housing:316L stainless steel
• Reference chamber:Aluminum alloy

Local display (optional)

• Segmented two-line LCD screen.
• Can be rotated on transmitter, in 90-degree increments, for ease of viewing.
• Suitable for hazardous area operation.
• Optical switch controls for hazardous area configuration and display.
• Glass lens.
• Three-color LED indicates meter and alert status.

Display functions

• View process variables
• View and acknowledge alerts
• Configure mA and RS-485 outputs
• Supports Known Density Verification (KDV).
• Supports multiple languages

Transmitter output channels

• Available output channels (depending on the Electronics Interface option):
• One or two externally powered (passive) 4–20 mA outputs
• Channel A is 4–20 mA + HART
• Channel B is 4–20 mA
• One externally powered (passive) Time Period Signal (TPS)output
• One externally powered (passive) Discrete output
• One Modbus/RS-485 output

Meter approvals, calibrations, and certifications

• Agencies and types of approval available:
• ATEX
• CSA C-US
• IECEx

Features

• Quickly and directly measure gas specific gravity, molecular weight, relative and base density
• Simultaneously calculate up to four gas purity curves to support each cycle of hydrogen-cooled generator operation
• Purge without the need to reconfigure or recalibrate
• See multivariable outputs including hydrogen purity, calorific value/BTU, Wobbe Index and mass or standard volume flow
• Expand usage with a hazardous area-approved, head-mounted transmitter that supports local configuration and display
• Quickly verify meter health and status using advanced internal diagnostics
• Support multiple simultaneous protocols for connection to DCS, PLC and flow computers
• Interact with our to learn more about our Compact Density Meters