Detailed Parameter Table

Product Introduction

The KROHNE BM70I/U/D/D/E-EEX/ZO is a high-precision radar-based level transmitter optimally engineered for continuous level measurement in hazardous environments, enabling safe, reliable monitoring of liquids, slurries, and solids. As a member of the BM 70 (or BM 70 Ex) family, BM70I/U/D/D/E-EEX/ZO inherits a proven platform known for its robust design, intrinsic safety, and versatile communication options. Embedded in the “Ex” line, this variant is tailored for use in Zone 0 hazardous areas, offering hardened explosion protection with EEx d/e approvals.

In a modern industrial automation system, BM70I/U/D/D/E-EEX/ZO serves as the cornerstone sensor for level control loops, tank inventory management, high- and low-level alarms, and interfaces seamlessly into DCS, SCADA or PLC systems via standard analog and digital protocols. It translates radar reflections into reliable level or volume data even in demanding process conditions. With its flexible antenna options and rugged build, the device is engineered to perform in harsh chemical, petrochemical, oil & gas, water & wastewater, and maritime applications. By selecting BM70I/U/D/D/E-EEX/ZO, users get the performance and safety required for critical level measurement in the most challenging zones.

Core Advantages and Technical Highlights

Functional Innovation:
BM70I/U/D/D/E-EEX/ZO leverages KROHNE’s advanced radar signal processing algorithms to distinguish between true level echoes, multipath reflections, and interference, thus delivering highly stable and accurate readings even under foam, turbulence, vapor, or condensation. Its software-based echo-tracking and bottom-tracking features allow it to dynamically adapt to changing process surfaces and tank conditions.

Performance & Accuracy:
This model offers excellent linearity and repeatability over long measuring ranges (typically up to tens of meters, depending on antenna selection). The 4–20 mA/HART output, in conjunction with internal diagnostics, provides early-warning fault detection and continuous performance monitoring. The optional Fieldbus or RS-485 interface supports richer data exchange, such as diagnostic parameters or measured echo spectra.

Reliability in Hazardous Environments:
Built for Zone 0 operation, BM70I/U/D/D/E-EEX/ZO meets strict explosion protection standards (EEx d/e), enabling it to be installed in the most hazardous zones without requiring remote mounting. Its rugged housing, flange design, and secure terminal compartments are built to resist ingress, electrostatic discharge, and pressure/temperature stresses typical in petrochemical and refining sectors.

Compatibility & Integration:
The transmitter supports HART and KROHNE SMART as standard, with optional upgrade paths to protocols like MODBUS or PROFIBUS-PA. It is compatible with KROHNE’s PC-CAT configuration software for remote or local tuning, and its outputs can interface directly into PLC, DCS or control panels.

Ease of Use & Maintainability:
The local display (LCD) and three-key interface (or magnetic sensors in some versions) enable on-site configuration and diagnostics without disassembly. Firmware updates, calibration routines, and echo viewing can be performed via PC-CAT. Modular design allows for field replacement of antennas or electronics without disturbing the process flange, reducing downtime.

In summary, BM70I/U/D/D/E-EEX/ZO stands out as a cutting-edge radar level transmitter combining high measurement fidelity, explosion-safe design, flexible communication, and maintainability tailored for critical industrial applications.

Typical Application Scenarios

The KROHNE BM70I/U/D/D/E-EEX/ZO is ideal in industries and settings where continuous and reliable level measurement in hazardous environments is essential:

• Petrochemical and refining: monitoring liquid levels in flammable hydrocarbon storage tanks, intermediate reactors, and separation vessels subject to vapor and foam. The Zone 0 certified design allows safe direct installation within the vessel.

• Oil & gas upstream and midstream: measuring level in oil storage tanks, ballast tanks, or intermediate separators, even under vapor pressure, condensation and flashing conditions.

• Chemical and process plants: detection of aggressive media, acids, solvents or suspensions, using appropriate wetted material options (e.g. Hastelloy, titanium) to resist corrosion.

• Marine and offshore: tank level measurement on ships, FPSO or platform tanks with potential explosive atmospheres and strict safety regulations.

• Water & wastewater and sludge treatment: use in sludge, slurries, or wastewater basins where foam, vapor, or solids may interfere; BM70’s advanced echo discrimination is beneficial.

• Bulk solids or powders (in limited cases): with an appropriate antenna configuration, BM70 variants can measure granular media in dusty silos, especially in hazardous zones.

In each use case, BM70I/U/D/D/E-EEX/ZO brings value by delivering continuous, high-fidelity measurement, enabling precise inventory control, level-based control logic, overfill prevention, safety interlocks, and diagnostics. Its explosion protection rating means fewer tradeoffs on sensor placement and safer operations in volatile environments.

Related Model Recommendations

Here are several related KROHNE BM 70 / BM 700 product models and their relationship to BM70I/U/D/D/E-EEX/ZO:

• BM70 A / BM70 P — Standard variants in the same radar level transmitter family (non-Ex or lower zone rating), offering a wider variety of antenna and protocol options; useful where full Zone 0 certification isn’t required.

• BM700 — A more advanced or high-performance version supporting extended ranges, more flexible sensor configurations, and more robust diagnostics — a suitable upgrade path.

• BM702 Ex — Specialized version for use in highly explosive or corrosive environments, offering enhanced immunity and safety certification (Zone 0/1) under more demanding conditions.

• BM70 Mi-EEx — Version with intrinsically safe I/O (Ex ia) capabilities, fitting applications where entire I/O chain must be intrinsically safe.

• BM70M-EEx / BM70M — A compact variant in the same series with modular flange and electronics design; may be used where space or mechanical constraints require a smaller profile.

• BM70Nautic — Marine-grade version of BM70, tailored for use aboard ships or offshore platforms, with additional marine approvals and ruggedization for salt environments.

Each of these models shares the core radar measurement technology, configuration software (PC-CAT), and modular platform with BM70I/U/D/D/E-EEX/ZO, yet differ in explosion classification, antenna packaging, range, or application specialization.

Installation, Commissioning and Maintenance Instructions

Installation preparation:
Before installing BM70I/U/D/D/E-EEX/ZO, ensure that the mounting environment is clean, vibration-minimized, and free of excessive electromagnetic interference. Confirm that temperature, humidity, and ambient pressure fall within the rated limits. Use explosion-protected cabling, glands and bonding per applicable standards (e.g. EN 60079, IECEx). Prepare tools such as calibrated torque wrenches, Teflon or Kalrez gaskets, multimeters, and insulation testers. Verify that the process nozzle and flange face are smooth, flat, and properly aligned. Always deenergize related circuits in hazardous areas before handling.

Commissioning:
Mount the unit on the process flange, align the antenna, torque bolts per spec (e.g. ≤ 8 Nm for flange bolts), and connect ground/equipotential bonding. Wire the power and signal cables, ensuring shielding is connected to FE clamps and that no ground loops exist. Use PC-CAT (or local keys/display) to assign zero and span values, set the operating units, configure protocol settings (HART, address, baud), and perform echo monitoring (graphical echo check). Validate the output against reference measurement (e.g. dipstick) and use bottom tracking or echo discrimination tuning if needed.

Maintenance suggestions:
Routine maintenance includes visual inspection of antenna surfaces for buildup or damage, checking tightness of flange bolts, verifying proper gland sealing, and inspecting cable and gland integrity. Periodically exercise the echo check or self-test functions via diagnostics. If signal distortions or drift appear, clean or recondition the antenna surfaces, or recalibrate via PC-CAT. For spare part replacement (e.g. antenna, waveguide, electronics), use original KROHNE modules and follow field-swap procedures; always power down and wait required safe-delay time before opening Ex enclosures. Keep firmware updated to the latest validated version to benefit from improved filtering or diagnostics. For explosion-protection aspects (EEx compartments), only certified personnel or the manufacturer’s authorized service should perform internal repairs.

Service and Guarantee Commitment

We stand firmly behind the quality and reliability of the BM70I/U/D/D/E-EEX/ZO. All units undergo rigorous factory calibration, functionality testing, and full compliance verification against explosion-protection standards before shipment. We provide a standard warranty covering defects in materials and workmanship for a defined period from delivery. Should any issue arise, we commit to responsive technical support—via phone, remote diagnostics or on-site assistance—leveraging our deep expertise in industrial automation and process measurement.

Furthermore, we offer repair, calibration, and upgrade services, ensuring that your BM70I/U/D/D/E-EEX/ZO remains in optimal condition throughout its operational life. During the warranty period, repaired or replaced units carry equivalent warranties. We also maintain a dedicated spare parts program, ensuring fast access to replacement antennas, electronics modules, or Ex components. Our aim is to minimize downtime and maximize operational confidence. Trust in our service commitment—your investment in BM70I/U/D/D/E-EEX/ZO is backed by our dedication to product excellence and customer satisfaction.

NEW RELIANCE ELECTRIC POWER BOX #803604-TC 720HP / 600V

RELIANCE ELECTRIC 3RA2008 USPP 3RA2008

RELIANCE ELECTRIC DCS POWER MODULE 803613-TC 360HP

Reliance Electric Company 86466-3R Rectifier 864663R

RELIANCE ELECTRIC 802220-15VC USPP 80222015VC

RELIANCE ELECTRIC 3RA2015 USPP 3RA2015

RELIANCE ELECTRIC UVZ3475 USPP UVZ3475

RELIANCE ELECTRIC 150V4051 USPP 150V4051

RELIANCE ELECTRIC 355C22D USPP 355C22D

Reliance Electric Company 86466-3R Rectifier 864663R

RELIANCE ELECTRIC 86466-3R USPP 864663R

RELIANCE ELECTRIC 7C658 USPP 7C658

RELIANCE ELECTRIC 29274-9SS USPP 292749SS

RELIANCE ELECTRIC 3RA2008U USPP 3RA2008U

RELIANCE ELECTRIC 50R4160 NSPP 50R4160

Reliance Electric Motor 200 hp 200hp 1785 RPM NEW

RELIANCE ELECTRIC 3RA2015U USPP 3RA2015U

RELIANCE ELECTRIC 57C-410B USPP 57C410B

RELIANCE ELECTRIC UGZ3455 USPP UGZ3455

RELIANCE ELECTRIC UVZC3007 USPP UVZC3007

RELIANCE ELECTRIC SA3000DC140 USPP SA3000DC140