Product Overview
The Blancett B2900 is the affordable Blancett monitor: it takes the frequency signal from nearly any flow sensor — a low-amplitude AC magnetic-pickup or contact-closure output, including the Blancett turbine and PD meters — and calculates local flow rate and total. Rate units, total units and the time base are set from the front panel and can be re-configured in the field, and the display shows rate and total together or alternates rate with the grand total. It runs on a 3.6 V lithium D-cell or off a 4–20 mA two-wire loop, and mounts at the meter, remotely or on a swivel. The loop-powered Advanced model adds analog 4–20 mA, totalizing-pulse, open-collector and status-alarm outputs with auto-switching battery back-up, two adjustable flow-rate alarms, and Modbus RTU over RS-485 for integration into a PLC, DCS or SCADA network. It is intrinsically safe for Class I Division 1 Groups C and D areas.
Key Features & Benefits
- Affordable rate & total — a low-cost monitor that shows local flow rate and accumulated total at the meter, with simultaneous or alternating rate / grand-total display
- Battery or loop power — run it on its own 3.6 V lithium D-cell or draw power from the 4–20 mA loop
- Field-configurable display — set rate units, total units and time base from the front panel, and re-configure it in the field as the duty changes
- 4–20 mA, pulse & alarms — analog 4–20 mA, totalizing-pulse and open-collector outputs plus two adjustable flow-rate alarms for control-room integration
- Modbus RTU networking — Modbus RTU over RS-485 connects the monitor to a PLC, DCS or SCADA network
- Works with most pulse sensors — accepts a magnetic-pickup or contact-closure input from nearly any meter, so it pairs with Blancett turbine and PD meters alike
Specifications
- Function
- Affordable flow monitor — calculates rate and total from a flow sensor’s frequency signal, with field-selectable rate units, total units and time base
- Measurements
- Flow rate and total — simultaneous rate and total, or alternating rate and grand total; standard, batch and grand totals
- Power
- 3.6 V DC lithium D-cell battery, or 4–20 mA two-wire loop power (auto-switching battery back-up on the loop-powered Advanced model)
- Mounting
- Meter-mount, remote or swivel mount
- Outputs
- Analog 4–20 mA, totalizing pulse, open-collector and status-alarm outputs
- Communication
- Modbus RTU over RS-485, plus two adjustable flow-rate alarms (Advanced model)
- Hazardous-area rating
- Intrinsically safe — Class I Division 1 Groups C and D; Class II Division 1 Groups E, F and G; confirm the exact approval/marking with Badger
- Display
- Local rate and total display, field-reconfigurable from the front panel
- Meter compatibility
- Nearly any flow sensor with a low-amplitude AC (magnetic-pickup) or contact-closure signal — Blancett turbine and positive-displacement meters included
Common Applications
- Cost-effective local rate and total readout right at the meter
- Meter, remote or swivel mounting where the meter is awkward to read
- Modbus RTU integration over RS-485 into a PLC, DCS or SCADA network
- Loop-powered 4–20 mA monitoring with auto-switching battery back-up
- Intrinsically safe Class I Division 1 field indication on clean turbine and PD service
To size & select the right Blancett B2900:
Use the input form to tell us your Blancett meter and what the readout has to do — local rate and total, batching, or a scaled 4–20 mA signal into a PLC or DCS — and we’ll match the right monitor or converter.
Flow Meter Application Sheet ›Talk to an engineer directly — Scott Prater, Principal · 917-580-0878 · scott@pratertechnical.com
Specifications compiled by Prater Technical Partners from Badger Meter Blancett flow-metering product literature.