The KOM Weigh Module
Rugged & Compact — Tank & Silo Level Monitoring — High-Capacity Weighing
10–500 kN • ‒40 to +100 °C • ATEX / IECEx • KOSD-40 Sensing Element • Storage Tank Weighing System
Turn Any Tank or Silo Into a Reliable Scale
Storage tanks, silos and process vessels are rarely static, and the conditions around them are rarely kind. The contents shift, the structure expands and contracts with temperature, and the whole assembly is exposed to vibration, dust, wash-down and corrosive atmospheres. You still need to know — accurately and continuously — how much material is inside.
The BLH Nobel KOM-1 weigh module answers that need from underneath. Mounted under the legs of a tank or silo, it measures the true vertical weight of the contents and turns any vessel into a reliable scale. As a rugged, compact tank weigh module and tank level monitoring load cell, it gives a direct mass measurement that is unaffected by foam, coating, stratification or changing product density — the failure modes that defeat radar, capacitive and pressure probes.
Built around the field-proven KOSD-40 sensing element and available from 10 to 500 kN, the KOM-1 is the BLH Nobel building block for a complete storage tank weighing system. With an extended ‒40 to +100 °C version and ATEX / IECEx certification, it performs as a true rugged load cell for harsh environments across food, chemical, pharmaceutical, metal and offshore plants.
Core Features
ENGINEERED FOR HIGH-CAPACITY IN HARSH COMPOSTIONS
Every KOM-1 feature targets a measurable problem in tank weighing, silo level monitoring and hazardous-area process weighing:
- High-Capacity Range (10–500 kN): a single high capacity load cell platform covers mid-size process vessels to large storage silos — 10, 20, 50, 100, 200 and 500 kN.
- Twist-Locked Three-Section Sensing Element: two outer support sections rest on a built-in block fixed to the base; the central load-sensing section carries a yoke for the tank leg and is positively locked against twisting — a defined, repeatable load path.
- Insensitive to Side Loads, Vibration & Thermal Expansion: the structure can move and resonate without corrupting the weight signal, keeping readings stable under dynamic process conditions.
- Non-Intrusive Measurement: weighing from underneath means no probes inside the vessel — ideal for inventory / fill level control and bulk material level monitoring regardless of product behaviour.
- Extended Temperature Range ‒40 to +100 °C: an extreme temperature load cell version for outdoor silos, heated reactors and chilled or frozen processes — no external compensation hardware required.
- ATEX / IECEx Hazardous Area Version: a certified hazardous area weigh module for explosive atmospheres in chemical, food (dust), pharmaceutical and offshore installations.
- Rugged, Compact Construction: a sealed, low-profile module that shrugs off dust, moisture, corrosion and mechanical abuse for a long, maintenance-light service life.
- Quick & Easy Installation: mounts directly under existing tank legs — fast retrofits and new builds, turning a tank, hopper or bin into a scale with minimal downtime.
- Seamless System Integration: connect multiple modules through a junction box to a BLH Nobel weighing instrument or directly to your PLC as a process weighing load cell.
At a Glance
KOM-1 Weigh Module - Specifications
Mechanical & Design
|
Product Type |
Weigh module — compression / load & level monitoring |
|
Sensing Element |
KOSD-40 — three-section sensing element |
|
Load Introduction |
Central yoke secures the tank leg; sensor locked against twisting |
|
Capacity Range |
10, 20, 50, 100, 200 & 500 kN |
|
Mounting Hardware |
Mounts under tank legs; no elaborate sub-structure required |
|
Construction |
Rugged, compact, sealed body for harsh environments |
|
Customisation |
Custom dimensions and capacities engineered to order |
Environmental & Certifications
|
Operating Temperature |
Standard range; extended ‒40 °C to +100 °C option |
|
Outdoor Installation |
Suitable — extreme temperature version available |
|
Hazardous Area |
ATEX / IECEx certified version available |
|
Service Environment |
Storage tanks, silos, vessels, hoppers, bins, bunkers |
|
Typical Industries |
Food, chemical, pharmaceutical, metal, mining, offshore |
|
Compatible Instruments |
BLH Nobel G5 / G6 process control instruments |
Choose the Right KOM-1 Configuration
The KOM-1 ships in three configuration profiles across the full 10–500 kN range. All share the same compact body and twist-locked three-section sensing element.
Standard
The standard KOM-1 covers the full capacity range and installs directly under existing vessel legs — no additional mounting hardware required.
▸ Full 10–500 kN capacity range
▸ Twist-locked three-section element
▸ Quick install under existing legs
▸ Direct mass / level measurement
▸ Plated steel construction
Extreme Temp
For outdoor silos, weather-exposed tanks, heated reactors, and chilled processes where standard temperature ratings are insufficient.
▸ Extended −40 to +100 °C range
▸ Outdoor silos & weather-exposed tanks
▸ Heated reactors & chilled processes
▸ No external temperature compensation
▸ Stable accuracy across the range
ATEX / IECEx
Certified for use in explosive atmospheres — chemical, solvent, petrochemical, food dust, pharmaceutical, offshore, and energy installations.
▸ Certified for explosive atmospheres
▸ Chemical, solvent & petrochemical zones
▸ Food (dust) & pharmaceutical bulk
▸ Offshore & energy installations
▸ Pairs with ATEX junction boxes
INDUSTRY APPLICATIONS
WHERE THE KOM WEIGH MODULE PERFORMS
As a vessel weighing load cell and silo weighing load cell, the KOM-1 is deployed wherever the weight of stored or processed material drives a decision — batching, dosing, inventory and bulk material level monitoring.
Food & Beverage
A hygienic silo weighing solution for ingredient silos, sugar and flour storage, mixing and process tanks. Drift-free silo level monitoring protects recipe accuracy, and the ATEX version covers dust-classified zones.
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Ingredient, flour and sugar silos
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Mixing tanks and process vessels
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Brewing and beverage applications
Chemical & Petrochemical
The ATEX / IECEx version makes the KOM-1 the natural tank weighing load cell for bulk storage in classified areas, while the twist-locked element handles the thermal expansion of large reactor and storage vessels.
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ATEX storage tanks and reactor vessels
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Bulk chemical and solvent silos
-
Outdoor tank farms in classified zones
Pharmaceutical
A repeatable process weighing load cell for storage and process vessels where validated batching depends on reliable, drift-free level control — with stainless-compatible, hazardous-area options.
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Process and storage vessels
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Hygienic batching and dosing
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Bulk-handling areas in classified zones
Metal & Mining
A heavy-duty compression load cell for tanks, bins and additive silos in rough environments — built to withstand impact loading, abrasive dust and the temperature swings of outdoor installations.
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Additive and reagent silos
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Bins, bunkers and feed weighing
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Harbor-side and outdoor storage
Offshore & Energy
A rugged force measurement load cell for mud, fluid and bulk tanks on platforms and vessels, exposed to vibration, salt and temperature extremes — with IECEx certification for hazardous zones.
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Mud and fluid storage tanks
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Bulk material level monitoring offshore
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Weather- and vibration-exposed installations
Why Choose the KOM-1?
Against a generic tank weigh module, the KOM-1 brings purpose-built robustness and certification options to storage-tank and silo weighing:
|
Capability |
KOM-1 Weigh Module |
Standard Tank Module |
|
Tank & silo level monitoring |
✓ Purpose-built, non-intrusive |
Often needs internal probes |
|
Side load / vibration rejection |
✓ Twist-locked 3-section element |
Variable |
|
Extended ‒40 to +100 °C |
✓ Standard option |
Often limited or unavailable |
|
ATEX / IECEx version |
✓ Certified variant available |
Separate certification needed |
|
High capacity (to 500 kN) |
✓ Standard range |
May require custom build |
|
Install on existing tanks |
✓ Direct under tank legs |
Extra mounting hardware |
FREQUENTLY ASKED QUESTIONS
WHAT ENGINEERS ASK US MOST ABOUT KOM-1 Weigh Module
We need a high-capacity module that is quick to install on existing tanks — what do you recommend?
The KOM-1 weigh module. It is a compact, rugged module available from 10 up to 500 kN, so one product family covers most mid- to high-capacity tanks and silos. Because it mounts directly under existing tank legs with no elaborate sub-structure, it installs quickly and suits retrofits — letting you add accurate weighing to vessels already in service with minimal downtime. For very heavy-duty work beyond this range (up to 200 tons), the KDH-5 from the same Tank Mount family is the next step up.
How can we monitor the level in a large storage tank or silo without installing intrusive internal probes?
Weigh the vessel instead of probing it. KOM-1 modules sit under the tank or silo legs and measure the actual weight of the contents, giving a direct, reliable measure of mass — and therefore level — with nothing inside the vessel. Unlike radar, capacitive or pressure sensors, the reading is unaffected by foam, surface coating, dust, stratification or changing product density, which makes it ideal for silo level monitoring and bulk material level monitoring.
Which weighing solution can handle extreme or fluctuating temperatures?
The KOM-1 is available as an extreme temperature load cell rated for ‒40 to +100 °C, suitable for outdoor silos and tanks, heated reactors and chilled or frozen processes where standard load cells drift or fail. Its sealed, rugged construction keeps it measuring accurately through wide ambient swings, with no external temperature compensation hardware required.
How do we get reliable readings when the tank is exposed to side forces, vibration and thermal expansion?
Through the KOM-1’s mechanical design. The sensing element has three sections: the two outer sections rest as supports on a built-in block fixed to the base, while the central load-sensing section carries a yoke that secures the tank leg. The sensor is positively locked so it cannot twist in the block, giving a defined, repeatable load path. This makes the module insensitive to side loads and vibration and lets the structure expand and contract with temperature without corrupting the weight signal.
What is the difference between the KOM-1 and the KDH-5 weigh module?
Both are BLH Nobel Tank Mount weigh modules for tank, silo and vessel weighing, and both offer hazardous-area approvals — but they target different ends of the capacity range. The KOM-1 is the compact, KOSD-based module for high-capacity weighing and level monitoring from 10 to 500 kN, with an extended ‒40 to +100 °C option. The KDH-5 is a double-ended shear beam weigh module for heavy, very-high-capacity applications — up to 200 tons — with a floating load point and integrated tilt guard for large silos, containers and weighbridges.
|
Feature |
KOM-1 |
KDH-5 |
|
Design |
Compact KOSD-40 module |
Double-ended shear beam |
|
Capacity |
10 – 500 kN |
20 kN up to ~200 tons |
|
Best for |
Tank/silo level monitoring, retrofits |
Heavy silos, containers, weighbridges |
|
Temperature |
‒40 to +100 °C option |
Standard industrial range |
|
Hazardous area |
ATEX / IECEx |
FM / ATEX / IECEx |
|
Signature feature |
Twist-locked 3-section element |
Floating load point + tilt guard |
