In flammable and explosive environments, every weighing must be safe, accurate and reliable. LOCOSC builds intrinsically safe explosion-proof weighing modules, load cells and indicators that let reactors, tanks and silos be measured with confidence, even inside hazardous areas.
In chemical production, reactors, batching tanks and acid storage tanks sit throughout explosive gas environments (Zones 0, 1 and 2) and combustible dust environments (Zones 20, 21 and 22), where any electrical spark can trigger a serious accident. LOCOSC explosion-proof weighing products use intrinsically safe design (Ex ia IIC T6 Ga) and flameproof enclosures to eliminate ignition sources at the root, keeping weighing equipment running safely in hazardous areas and protecting production continuity.
In fine chemical production such as paints and coatings, formulation accuracy directly determines batch quality and raw material cost.
Install LOCOSC LP7213 weighing modules under batching kettles, paint-mixing kettles and similar vessels to weigh the vessel and its contents as one — no modification to the tank structure is required. The intrinsically safe circuit design (Ex ia IIC T6 Ga) guarantees the module cannot produce an igniting spark or high temperature under normal or fault conditions in a hazardous area.
Paired with the XK3150-Ex intrinsically safe indicator, batching weight is displayed in real time throughout the process — accurate, repeatable dosing and steadily better batch consistency.
The LP7213 weighing module, the LP731aB intrinsically safe junction box and the XK3150-Ex intrinsically safe indicator — three products that form one complete explosion-proof weighing system installable directly in hazardous areas, closing the loop from the vessel to the control room.
304 stainless steel housing, intrinsically safe circuitry (Ex ib IIC T4 Gb), 6-digit LED or backlit LCD, RS232/RS485 and 4-20mA, PLC/DCS integration.
0.25–5 t capacity, OIML C3 accuracy, Ex ia IIC T6 Ga, mild steel or stainless steel, with overload and anti-lift protection, easy and stable to install.
Stainless or carbon steel fully sealed enclosure, IP68, Ex ia IIC T6 Ga, sums signals from multiple sensors, simple and reliable to set up.
No extra parts to source, no risky field wiring to second-guess. These three products ship as one system designed to work together — install them in signal order and it just works.
Fitted under the legs and supports of reactors, tanks and silos, turning material weight into an intrinsically safe mV signal. Ex ia IIC T6 Ga, 0.25–5 t, with overload and anti-lift protection built in.
Sums 4–10 module signals into one loop right inside the hazardous area. Fully sealed stainless steel enclosure, IP68, Ex ia IIC T6 Ga — energy-limited and explosion-proof, no risky field splitting.
Reads weight directly at the hazardous-area location, Ex ib IIC T4 Gb; then sends the data over 4-20mA / RS485 to the PLC/DCS in the safe area for automatic batching and traceability.
Intrinsic safety all the way: from the LP7213 module (ia) through the LP731aB junction box (ia) to the XK3150-Ex indicator (ib), the weighing circuit cannot release enough energy to ignite explosive gas under either normal or fault conditions — vessel-area weighing runs without any additional explosion-proof conversion.
Level sensors are affected by media density, temperature and corrosiveness; weighing measures the mass of the material directly — simple, reliable and independent of media properties.
Install LP7213 modules under the legs or supports of FRP tanks and horizontal tanks to monitor material weight and inventory in real time. Whether the media is acid, solvent or powder, the reading stays accurate and consistent.
High and low limit alarms through the explosion-proof indicator prevent overflow and stock-outs, making inventory and purchasing planning easier.
Neutralization tanks and acid storage tanks hold corrosive media — equipment must be both explosion-proof and corrosion-resistant.
LOCOSC offers stainless steel weighing modules and load cells for acid and corrosive media. Modules feature equipotential bonding points, and together with flameproof braided hoses and proper grounding they form a complete intrinsically safe chain.
Intrinsically safe (ia) design means the weighing circuit cannot release ignition energy under normal or fault conditions — even when weighing acid and other hazardous media.
A reliable weighing system depends on indicators that work in hazardous areas.
The XK3150-Ex intrinsically safe indicator (Ex ib IIC T4 Gb) installs directly in hazardous areas; the XK3150-Exd flameproof indicator uses a flameproof enclosure with built-in safety barriers for higher protection requirements.
Via RS232/RS485, weight data feeds into PLC/DCS systems in real time for automatic batching, dosing control and production traceability — weighing that fits into smart manufacturing.
The reliability of an explosion-proof weighing system lies in the details of its installation.
From equipotential bonding points and flameproof braided hoses to yellow-green grounding cables, LOCOSC provides complete protection accessories and installation guidance for every explosion-proof weighing system, eliminating static build-up and signal interference.
Mild steel / stainless steel structures and fully sealed protection stand up to the dust, moisture and corrosion of chemical plants year after year.
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