What other outputs are available?

In addition to 4-20mA with HART, the meter also offers pulse output, RS485 Modbus, and optional GPRS .

Battery Powered Electromagnetic Flow Meter with Hart Protocol - Hl-Ld Series

Name: Battery Powered Electromagnetic Flow Meter with Hart Protocol - Hl-Ld Series
Brand: Jiangsu Hualiu Instrument Co., Ltd.
SKU: 2182522392

Jiangsu, ChinaJiangsu Hualiu Instrument Co., Ltd.

US$200.00-6,500.00

1 Piece

Product profile

Customization

Available

After-sales Service

Online Support, 1 Year Warranty

Warranty

15 Months

Model NO.

HL-LD

Accuracy

±0.5% (±0.2% Optional)

Main Application

Water, Wastewater, Industrial Process, Mining

Size

DN15 - DN600 (Larger Available)

Sensor

316L Stainless Steel

Application

Water Supply Networks, Wastewater Treatment.

Type

Split Type (Remote Display)

Measuring Media

Water, Wastewater, Acid, Alkali, Slurry.

Measuring Principle

Electromagnetic Induction (Faraday's Law)

Measurement Object

Volumetric Flow Rate, Total Flow.

Certification

CE, ISO, Ex

Transport Package

Wooden Case.

Specification

HL-LD Series, Pulse / 4-20mA / RS485 / GPRS

Trademark

Hualiu

Origin

Jiangsu, China

HS Code

90261000

Production Capacity

5000 Pieces/Year

Key features

HART communication - Two-way digital communication on 4-20mA signal; remote configuration, calibration & diagnostics.

Long battery life -3.6V lithium battery lasts 3-6 years; no external wiring needed; ideal for remote locations.

High accuracy - pluse-minus 0.5% of reading (pluse-minus 0.2% optional); flow range up to 10 m/s; unaffected by density, temp, or viscosity.

Smart diagnostics -Remote zero/span adjustment, self-diagnosis, and parameter changes via HART host system.

No moving parts - Zero clogging from solids, fibers, or slurry; ideal for wastewater, pulp, and conductive fluids.

Company profile

High Repeat Buyers ChoicePatents AwardedSelf-brandedNational Award received

Jiangsu Hualiu Instrument Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 4 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤18h

AI-Powered supplier vetting

SummaryJiangsu Hualiu Instrument Co., Ltd. is described as a manufacturer of industrial automation instruments, including flow, pressure, temperature, and liquid-level instruments. The supplier reports over ten years of experience, four production lines, annual output above 20,000 units, complete production equipment, and gas and liquid calibration equipment. It offers broad customization and ODM services, has introduced new products within the past year, and performs 100% finished-product inspection with raw-material traceability. Quality and management certifications include ISO9001:2015, ISO14001, ISO45001:2018, and CE capability. Reported service strengths include inventory availability, documented supplier-management procedures, and lead times within 15 working days in both peak and off-season. However, it reports no overseas agents, branches, warehouses, showrooms, or offline trade-show participation. Customer cases are not provided, and the financial information is inconsistent or incomplete, so financial...

Supplier typeThe supplier is explicitly described as a manufacturer dedicated to the production, research, and sales of industrial automation instruments. Its product scope includes flow, pressure, temperature, and liquid-level instruments, indicating a specialized industrial-instrument manufacturing profile.

CertificationsThe supplier reports ISO9001:2015, ISO14001, and ISO45001:2018 certifications, along with CE and other product-certification capabilities. These stated certifications support quality, environmental, and occupational-health management, although the slices do not provide certificate validity dates or certificate copies.

R&D capabilityThe supplier states that it has an instrument research and production team, has launched new products within the past year, and provides ODM services. It also reports advanced gas and liquid calibration equipment, supporting a documented product-development capability.

Production capacityProduction evidence includes four production lines, annual output above 20,000 units, complete equipment such as CNC lathes, lathes, drying ovens, and drilling machines, and inventory capacity. The supplier also has valid manufacturing contracts with associated subcontractors and an outsourcing SOP, although it does not continuously reconcile quantities for each batch or production run.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM service availability, demonstrating broad customization coverage across customer-provided samples, designs, and original product development.

Product Q&A

Q:What is HART protocol?

HART (Highway Addressable Remote Transducer) is a two-way digital communication protocol superimposed on the 4-20mA analog signal. It allows remote configuration, diagnostics, and parameter changes without interrupting the analog signal .

Q:Can I remotely configure the flowmeter?

Yes! With HART protocol, you can remotely adjust zero point, range, and other parameters from the control room using a HART communicator or host system .

Q:How long does the battery last?

The 3.6V lithium battery provides 3-6 years of continuous operation, depending on the output configuration and communication frequency .

Q:Does HART communication affect the 4-20mA signal?

No. HART protocol uses frequency shift keying (FSK) to superimpose digital signals on the 4-20mA analog signal without interference. The average value of the superimposed signal is zero .

Q:Can this meter measure slurries?

Yes! The electromagnetic flow meter has no moving parts, making it immune to clogging from slurries, sludge, or pulp fibers .