Metri Signet - Model 2100 -Turbine Flow Sensor

Durable PVDF wetted parts combined with ceramic shaft and bearings deliver excellent chemical compatibility and long service life in aggressive media including high purity chemicals. Union style end connections and a choice of fittings for DN8 DN10 and DN15 tubing or DN15 piping simplify installation into either rigid or flexible lines. Removable NEMA 4X electronics that can be installed from either side of the sensor body reduce downtime and enable quick replacement in the field. A standard 4.6 metre shielded cable which can be extended up to 300 metres allows the Signet 2100 turbine flow sensor to integrate seamlessly with panel mount and field mount instruments for local display totalisation and control.

Low Flow Turbine Sensor for Small Bore Lines

The Signet 2100 Turbine Flow Sensor is optimised for low flow measurement in DN15 pipe and DN8 to DN15 tubing. Its dual range design covers very low flows for precise dosing as well as higher flows up to 38 litres per minute supporting a wide variety of small line processes from chemical injection to fertigation systems.

Chemically Resistant PVDF Turbine Flow Construction

With a PVDF sensor body and rotor and ceramic shaft and bearings the 2100 turbine sensor offers strong chemical resistance and minimal wear. This makes it ideal for high purity and corrosive chemical dispensing where metallic meters are unsuitable. Optional FPM or EPDM O rings allow further matching of materials to process compatibility requirements.

Compact Turbine Sensor with Flexible End Connections

The compact body length from approximately 102 millimetres depending on end fittings and lightweight 0.15 kilogram construction simplifies installation in tight spaces. A comprehensive selection of end connector kits provides hose barb options for flexible tubing and fusion socket IR or PVC socket and NPT connections for rigid DN15 piping so that the same sensor can be adapted to many system designs.

Removable Electronics for Easy Service of Turbine Flow Sensor

The electronics module is removable and installs from either side of the flow sensor allowing quick replacement without disturbing the plumbing. The housing is rated NEMA 4X and constructed from robust PBT and EVA materials to withstand industrial environments while maintaining protection for the internal circuit.

Open Collector Pulse Output for Turbine Flow Measurement

The Signet 2100 provides an open collector sinking pulse output rated up to 30 milliamp which is compatible with a wide range of indicators transmitters and controllers. Powered from a five to twenty four volt DC supply with reverse polarity protection the sensor can be wired up to 300 metres using shielded twisted pair cable enabling installation at a distance from the control panel.

Proven Performance and Compliance for Turbine Flow Sensors

The sensor achieves an accuracy of plus or minus three percent of reading with repeatability of plus or minus 0.5 percent across its operating range. Maximum pressure capability of up to 16 bar at 20 degrees Celsius with derating to 9.3 bar at 70 degrees Celsius together with CE FCC and RoHS approvals and manufacture under ISO 9001 and ISO 14001 quality systems provides assurance of dependable performance.

The Signet 2100 Turbine Flow Sensor is ideal for low flow monitoring and control in small bore chemical and water lines where compact size chemical resistance and reliable pulse output are required. Its flexible end connection options and wide flow range make it suitable for both OEM skids and plant upgrades in many process industries.

Typical suitable applications include:

• Chemical addition and feed verification in water treatment and process systems
• High purity chemical dispensing in semiconductor pharmaceutical and laboratory facilities
• Textile dyeing lines requiring accurate low flow monitoring of dyes and additives
• Water addition and batching in food beverage and industrial processes
• Fertigation systems blending fertiliser with irrigation water in agriculture and horticulture
• Dosing and metering of cleaning and sanitising agents in CIP and wash systems
• Pump protection monitoring for small metering pumps to confirm flow and detect loss of prime

Parameter: Specification

• Product name: Signet 2100 Turbine Flow Sensor
• Measurement principle: Turbine flow sensor with non magnetic turbine rotor
• Flow ranges: Low range code L 0.38 to 3.8 litres per minute 0.10 to 1 US gallons per minute
• High range code H 3 to 38 litres per minute 0.8 to 10 US gallons per minute
• Accuracy: Plus or minus 3 percent of reading
• Repeatability: Plus or minus 0.5 percent of reading
• Pipe size: DN15 0.5 inch pipe
• Tubing sizes: DN8 0.25 inch DN10 0.375 inch DN15 0.5 inch
• Wetted body and rotor material: PVDF
• Shaft and bearing material: Ceramic
• O ring materials: FPM for versions 3 2100 1L and 3 2100 1H
• EPR EPDM for versions 3 2100 2L and 3 2100 2H
• Electronics housing material: PBT polybutylene terephthalate and EVA ethylene vinyl acetate
• Power supply: Five to twenty four volt DC plus or minus ten percent regulated maximum current 1.5 milliamp
• Electrical protection: Reverse polarity protection
• Output signal: Open collector sinking output maximum 30 milliamp
• Standard cable length: 4.6 metres fifteen feet
• Maximum cable extension: Up to 300 metres one thousand feet with suitable cable and recommended junction block
• Cable type: PVC jacketed two conductor twisted pair with shield 22 AWG
• Operating temperature range: Minus 20 to plus 70 degrees Celsius minus 4 to plus 158 degrees Fahrenheit
• Storage temperature range: Minus 15 to plus 80 degrees Celsius 5 to 176 degrees Fahrenheit
• Maximum pressure at 20 degrees C: 16 bar 232 psi
• Maximum pressure at 70 degrees C: 9.3 bar 130 psi
• Overall length all sockets: Approximately 102 millimetres 4 inches
• Overall length butt fusion IR: Approximately 170 millimetres 6.7 inches
• Overall length 0.25 inch barb: Approximately 124 millimetres 4.9 inches
• Overall length 0.375 inch barb: Approximately 127 millimetres 5 inches
• Overall length 0.5 inch barb: Approximately 132 millimetres 5.2 inches
• Electronics module length: 64 millimetres 2.5 inches
• Shipping weight: Approximately 0.15 kilograms 0.33 pounds
• Approvals and standards: CE FCC RoHS and China RoHS compliant manufactured under ISO 9001 and ISO 14001