NuFlo Scanner 2000 microEFM - Cameron

Product Description
The Scanner 2000 microEFM is a compact, high-performance electronic flow meter (EFM) designed for precise measurement, monitoring, and data management of gas, steam, and liquid flow in industrial applications. Built to operate reliably in harsh environments, the unit integrates flow computation, pressure and temperature measurement, and communications capabilities within a rugged, explosion-proof or intrinsically safe enclosure.

Certifications and Approvals

Explosion-Proof Package:

• CE approved; complies with EMC Directive 2004/108/EC

• ATEX and IECEx certified: II 2 GD Ex d IIC T6 IP68 (-40°C to +70°C / -40°F to +158°F)

• CSA certified for US and Canada:

  • Class I, Div. 1, Groups B, C, D

  • Class I, Div. 2, Groups A, B, C, D (non-sparking)

  • Type 4 enclosure, ANSI 12.27.01 single seal (0 to 3000 psi)

• Measurement Canada certified for custody transfer, Approval No. AG-0557C

• GOST-R / GOST-K certified

• ASME pressure vessel code compliant (0 to 3000 psi); CRN 0F10472.5C

• Fieldbus Foundation approved

Intrinsically Safe Package:

• CE approved

• ATEX certified: II 2G Ex ia IIB T4 IP66 (-40°C to +78°C / -40°F to +172°F)

• Fieldbus Foundation approved

Display

• Two-line LCD display with clear alphanumeric characters

• Top line: 8-digit display for values

• Bottom line: 6-digit display identifying scrolling parameters and engineering units

• Displays up to 12 user-defined parameters

• Access to daily log data for 99 days

• User-selectable units of measurement

• Character height: 0.3 inch

• Adjustable contrast and update period

Power Supply

• Internal lithium battery for autonomous operation

• External power supply: 6–30 VDC, with internal battery backup

• Fieldbus network power available for Foundation Fieldbus models

Flow and Fluid Calculations

Flow Measurement:

• Gas, steam, or liquid flow calculation per:

  • AGA-3 (orifice)

  • AGA-7 (turbine)

  • ISO 5167

  • Compensated liquid turbine

  • Cone and Averaging Pitot Tube (Annubar®)

Fluid Properties:

• Natural gas: AGA-8-92 (detail and gross)

• Steam: IF-97

• Liquids:

  • Generic (water or emulsions)

  • API-2540 (crude oil, jet fuel, gasoline, fuel oils, lubricating oil)

Wet Steam Correction:

• James (orifice)

• Chisholm (orifice)

• Steven (cone)

Communications and Data Retrieval

• Modbus RTU protocol with two on-board RS-485 communication ports (COM1 and COM2)

  • Baud rate: 300 to 38,400 bps

• Foundation Fieldbus communication with one RS-485 port (COM1)

  • Baud rate: 300 to 38,400 bps

• USB communication via optional adapter

• Enron Modbus compliant for data downloads

• User-defined data blocks (up to 25 floating-point values) for efficient SCADA data transfer

• Full archive download in approximately 3 minutes (main board only) or 6 minutes (with expansion board)

Inputs

Turbine Meter Inputs (1 and 2*)

• Configurable sensitivity: 20–200 mV peak-to-peak

• Frequency range: 0–3500 Hz

• Input amplitude: 20–3000 mV peak-to-peak

• Note: Turbine Input 2 cannot be used simultaneously with Pulse Input

Pulse Input (Expansion Board Required*)

• Accepts signals from turbine or PD meters

• Optically isolated input: 3–30 VDC or contact closure

• Cannot operate simultaneously with Turbine Input 2

Analog Inputs (1 and 2; Expansion Board Required*)

• Three-wire sensor interface

• Sensor power same as external power supply (6–30 VDC)

• Accuracy: ±0.1% of full scale

• Temperature effect: ±0.25% of full scale across –40°F to +158°F (–40°C to +70°C)

• Resolution: 20 bits

• User-adjustable sampling time and damping

Process Temperature Input

• 100-ohm platinum RTD (2-wire, 3-wire, or 4-wire)

• Sensing range: –40°F to +800°F (–40°C to +427°C)

• Accuracy: ±0.2°C (±0.36°F) over calibrated range

• Temperature effect:

  • ±0.54°F over operating range (–40°F to +158°F)

  • ±0.3°C over operating range (–40°C to +70°C)

• Resolution: 24 bits

• User-adjustable sample time and damping

Outputs

Digital Output

• Configurable as pulse or alarm output

• Solid-state relay, optically isolated

• Output rating: 60 mA max @ 30 VDC

Pulse Output:

• Adjustable pulse duration

• Maximum frequency: 50 Hz

• Configurable pulse representation (e.g., 1 pulse = 1 MCF)

• Based on any accumulator (flow run or turbine inputs)

Alarm Output:

• Configurable for low/high, out-of-range, or status/diagnostic conditions

• Latched/unlatched; normally open/normally closed operation

Analog Output (Expansion Board Required*)

• 4–20 mA output

• Accuracy: ±0.1% of full scale @ 25°C (77°F)

• Temperature drift: 50 ppm/°C (27.8 ppm/°F)

• Represents any measured or calculated parameter (e.g., differential pressure or flow rate)

• Optically isolated, 16-bit resolution

• Suitable for PID control of valves

Key Features

• Compact, explosion-proof or intrinsically safe design

• High-accuracy measurement and data logging

• Multiple input/output and communication options

• Compatible with industry standards (AGA, API, ISO, IF-97)

• Ideal for custody transfer and process monitoring applications