Current position > Product detail
『Blancett Flow Meter B3000: Sourcing Pulse-to-Analog Fluid Converter Calibration』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
Blancett Flow Meter B3000 Sourcing Pulse-to-Analog Fluid Converter Calibration
Quick Answer: You can source a pulse-to-analog fluid converter for the Blancett Flow Meter B3000 from Silver Automation Instruments. Calibration requires the K-factor, flow range, pipe size, and power supply voltage. Send those details to Silver Instruments for a quote within 24 hours.
What the B3000 Converter Does on a Flow Skid
Most engineers use the B3000 converter to turn turbine meter pulses into an analog signal. A Blancett flow meter sends pulses that scale with flow rate. The converter counts those pulses and outputs a 4-20 mA current loop. This signal feeds a PLC, DCS, or chart recorder. We have supplied similar converters for water treatment plants in Indonesia, chemical dosing skids in Vietnam, and fuel transfer lines in Chile.
In practice, the converter also filters noise and handles low flow cut-off. Some models accept a 5 V DC or 24 V DC pulse input. The output can be active or passive loop powered. An engineer should check the field wiring before replacement. A wrong jumper setting can shift the 4 mA point.
Calibration Data You Must Have on Hand
Calibration for the B3000 starts with the turbine meter K-factor. This number is often printed on the meter tag or calibration certificate. It is expressed in pulses per liter or pulses per gallon. A typical K-factor for a DN25 turbine meter may be 3200 pulses per liter. For a DN50 meter it can be 750 pulses per liter. The converter uses this value to scale the output.
You also need the flow range. Many customers request 4 mA at zero flow and 20 mA at the maximum flow rate. The maximum flow rate depends on pipe size and liquid viscosity. For water, a DN40 turbine meter may run 2 to 20 m3/h. For diesel, the same meter may run 1 to 10 m3/h because of viscosity in centipoise. Viscosity above 5 cP can affect turbine accuracy. Silver Instruments can adjust the converter calibration for linearization points.
Sourcing a Direct Replacement for the B3000
Blancett flow meters use a pulse output. The B3000 converter is one of several options. Silver Automation Instruments supplies a pulse-to-analog converter that matches the B3000 input and output terminals. Our converter mounts on a DIN rail or in a NEMA 4X enclosure. The analog output is 4-20 mA with HART as an option. We also provide ATEX Zone 1 approved converters for gas metering skids in the Middle East.
Here is the thing. Many procurement teams waste time waiting for the original part number. Silver Instruments can cross-reference the B3000 specifications and ship a compatible unit in 5 to 10 working days. We ship from Nanjing, China to Australia, Saudi Arabia, South Africa, and Mexico by DHL or sea freight.
Calibration Procedure on Your Workbench
Most engineers can calibrate the B3000 converter in under 30 minutes. First, apply a pulse signal generator to the input terminals. Set the frequency to match a known flow rate. Measure the output current with a multimeter. Adjust the 4 mA trim and 20 mA trim until the output matches the target. Then run a mid-range check at 12 mA. We have seen a paint plant in Southeast Asia skip the mid-range check and lose accuracy at 30 percent flow.
If you do not have a pulse generator, use th
Common Field Problems and Fixes
Field issues often come from ground loops. A ground loop can make the 4-20 mA output drift by 0.3 to 0.5 mA. Use isolated power supplies and check the shield drain wire. Another issue is incorrect pulse type selection. The B3000 and compatible converters often accept square wave pulses from a turbine meter. If the input is set to reed switch mode, the converter may double count or miss pulses.
We have seen customers in the UAE replace a B3000 converter when the real problem was a damaged turbine pickup coil. The pickup coil resistance should be 400 to 600 ohms for many Blancett models. Measure that before ordering a new converter. It saves money and downtime.
Recommended Silver Instruments Models for B3000 Replacement
Silver Automation Instruments recommends the SI-880 pulse-to-analog converter for standard DIN rail installation. It accepts 0 to 10 kHz pulse input and outputs 4-20 mA. The power supply is 24 V DC. It includes a digital display for flow rate and totalizer. For field mounting, use the SI-880F with a weatherproof enclosure. It works with Blancett flow meters from DN15 to DN200.
For hazardous areas, the SI-880X carries ATEX Zone 1 certification. It is suitable for gas flow metering in Qatar, Oman, and Nigeria. The output is 4-20 mA HART. You can configure the K-factor via a handheld communicator or the front panel buttons.
How to Request a Quote from Silver Instruments
Send us your flow range, K-factor, pipe size (DN), liquid type, and power supply voltage. Our application engineers will confirm the correct converter model and calibration range. Email your process data to Silver Instruments. You can also reach us by phone or WhatsApp.
Tel: +86-25-68650347
Whatsapp: +86-25-52155837
WeChat: +86 15365082610
FAQ
Q: Can the B3000 converter work with a magnetic flow meter?
No. The B3000 converter is designed for turbine flow meters and other pulse-output sensors. A magnetic flow meter outputs a 4-20 mA signal directly and does not need a pulse-to-analog converter.
Q: What is the typical lead time for a B3000 compatible converter?
Silver Instruments keeps standard SI-880 units in stock. Lead time is 5 to 10 working days for standard models. ATEX versions may take 15 working days.
Q: Do you provide calibration certificates?
Yes. Each converter ships with a 3-point calibration certificate. We calibrate at 4 mA, 12 mA, and 20 mA against traceable reference equipment.
Q: Can the converter be powered by 12 V DC?
The standard SI-880 converter accepts 24 V DC. A low power version is available for 12 V DC systems. Specify the power supply voltage when you request a quote.
Q: Does the converter work with high viscosity liquids?
The converter works with the pulse signal from a turbine meter. High viscosity above 5 cP affects the turbine meter accuracy. Silver Instruments can supply an oval gear flow meter for liquids above 5 cP.