EXPLOSION-PROOF INDUSTRIAL
WEIGHING SCALES IN RIYADH, SAUDI ARABIA
Global Scales delivers rugged explosion-proof industrial weighing scales built to withstand the harsh and explosive conditions of the oil and gas sector. From heavy duty scales to hazardous area floor scales, our systems ensure accurate measurement of raw materials and bulk loads. With standard weights, customized software, accredited calibration, and maintenance services, we help the petrochemical industry improve efficiency, safety, and compliance. Durable and precise, our solutions keep your oil and gas operations seamless regardless of stage, be it extraction or transportation.
Explosion Proof Weighing
Don’t Let Your Environment Dictate Your Accuracy
In a petrochemical facility, a flour mill, or a pharmaceutical warehouse, the weighing scale is a critical safety instrument, not just another tool or scale. One spark from non-compliant equipment in a classified hazardous area can have catastrophic consequences. Your petrochemical weighing solution has to be as serious about safety as you are.
PRODUCT INFORMATION
Product Family: Explosion-Proof & Hazardous Area Floor Scales
Approvals: ATEX / IECEx / OIML
Hazardous Zones Covered: Zone 1/21, Zone 2/22, Division 1 & Division 2
Primary Industries: Oil & Gas, Petrochemicals, Chemical Processing, Pharmaceutical, Mining, Grain & Milling, Paint & Coatings
Scales in This Family:
| Model | Type | Best For |
|---|---|---|
| PFD779 PowerDeck™ | Stainless Steel Floor Scale | Harsh wet environments, Zone 2/22 (ATEX Cat. 3GD) |
| PFA569 Liftop | Hinged-Platform Floor Scale | Hygienic washdown, easy-access cleaning |
| PFA584 | Configurable Global Standard Floor Scale | Flexible industrial deployments, multinational sites |
| PTA469 | U-Shaped Pallet Scale, Stainless Steel | Pallet and container weighing without ramps |
Global Scales & Systems supplies the full range of explosion-proof and intrinsically safe floor scales; precision instruments engineered specifically for environments where flammable gases, vapors, combustible dusts, or ignitable fibers are present. Each model in this lineup carries rigorous third-party approvals under ATEX and IECEx directives, ensuring your operations remain compliant whether you operate under Zone 1/21, Zone 2/22, or Division 1/2 classification.
What makes these scales different isn’t just the certifications. It’s the way they’ve been built: hermetically sealed load cells, stainless steel structures, intelligent diagnostics, and smart digital interfaces that deliver outstanding accuracy even in the most demanding conditions on earth.
We’ve selected four models for this page; the PFD779, PFA569, PFA584, and PTA469, because together they cover virtually every floor-level weighing requirement in hazardous or hygiene-critical industrial environments. Whether you’re weighing a 5-tonne drum in a Zone 2 chemical plant or loading pallets in a washdown pharmaceutical production line, there’s a configuration here built for exactly that job.
As your partner in Saudi Arabia, UAE and the entire GSS, we are here to help you all things involving sourcing, installation, calibration, and ongoing service across KSA and the GCC. You get factory-grade precision, backed by local support you can actually reach.
PRODUCT PARAMETERS
General Parameters — Explosion-Proof Floor Scale Range
| Parameter | PFD779 PowerDeck™ | PFA569 Liftop | PFA584 Floor Scale | PTA469 Pallet Scale |
|---|---|---|---|---|
| Scale Type | Floor Scale | Liftop Floor Scale | Configurable Floor Scale | U-Shaped Pallet Scale |
| Material | 304 Stainless Steel | 304 Stainless Steel | Mild Steel / Stainless Steel | 304 Stainless Steel |
| Max Capacity | 6,000 kg | 5,000 kg | 3,000 kg | 5,000 kg |
| Min Capacity | 300 kg | 1,000 kg | 1,500 kg | 2,500 kg |
| Minimum Readability | 100 g | 200 g | 100 g | 100 g |
| Platform Sizes Available | 0.8×0.8m to 2×2m | 1,220×1,220mm to 1,524×1,524mm | 1,000×1,000mm to 1,500×1,500mm | 1,220×1,220mm to 1,524×1,524mm |
| Platform Height | 78mm – 104mm | Low-profile | 78mm | Low-profile |
| Protection Rating | IP68 / IP69K | IP69K | IP65 (MS) / IP67 (SS) | IP65 |
| ATEX Approval | Cat. 3GD (Zone 2/22) | Zone 1/21 (with IS config) | Zone 2/22 (configurable) | Zone 2/22 (configurable) |
| Hazardous Zone | Zone 2/22 | Zone 1/21, Zone 2/22 | Zone 2/22 | Zone 2/22 |
| Scale Interface | POWERCELL® Digital | Analog / SICSpro | Analog / SICSpro / Cable-Free | Analog |
| Legal for Trade | OIML | OIML | OIML | OIML |
| Accuracy | Up to 10,000e | Up to 5,000e | Up to 5,000e | Up to 5,000e |
| Cable Length | 3m standard | 5m standard | 5m standard | 5m standard |
| Operating Temperature | -10°C to +40°C | -10°C to +40°C | -10°C to +40°C | -10°C to +40°C |
| Approvals | ATEX, IECEx, OIML | ATEX, IECEx, OIML | ATEX, IECEx, OIML | ATEX, IECEx, OIML |
Note: All models are certified by accredited third-party notified bodies. Specific ATEX classification (zone, gas group, temperature class) depends on configuration. Contact GSS for exact approval documentation.
PRODUCT FEATURES
PFD779 PowerDeck™ Floor Scale
Real-Time Operator Guidance
Visual loading prompts alert operators to off-center placement in real time, eliminating weighing errors before they happen. Faster process cycles, fewer re-weighs, zero excuses.
Best-in-Class Accuracy
The only floor scale on the market offering up to 10,000e legal-for-trade accuracy. Digital POWERCELL® load cells deliver resolution from 3,000e to 60,000d — no junction boxes, no interference, no compromise.
Built for the Harshest Environments
IP68/IP69K-rated for full immersion and high-pressure washdown. The 304 stainless steel platform stands up to chemical exposure, heavy forklift traffic, and temperature extremes without degradation.
Intelligent Shock and Overload Monitoring
Built-in diagnostics continuously track shock events and overload occurrences. Predictive alerts flag potential failures before they cause downtime — protecting your investment and your production schedule.
ATEX Category 3GD — Zone 2/22 Ready
Factory-certified for use in potentially explosive atmospheres where flammable gases or combustible dusts may be present. Designed, tested, and approved under ATEX directives — not an afterthought, an engineering decision.
PFA569 Liftop Floor Scale
Platform Access Without the Headache
The Liftop’s hinged platform opens with one hand. Built-in gas springs control the lifting and lowering speed — it opens smoothly with minimal effort and closes gently every time. Cleaning the load cells and platform underside takes minutes, not a maintenance event.
IP69K Washdown-Ready Construction
Stainless steel structure throughout. IP69K-rated SS junction boxes. Hermetically sealed stainless steel load cells. This scale was built for environments where the hose comes out after every shift.
No Ramp, No Pit, No Problem
Low-profile design enables direct ground-level loading. No need to build a pit or install ramps — less installation cost, less floor space consumed, faster deployment.
Simple Relocation
Adjustable feet for quick levelling on uneven surfaces. Lightweight enough to move, robust enough to stay accurate wherever you put it.
Ideal for Food, Pharma, and Chemical Industries
Designed specifically for hygiene-critical and hazardous-area applications where contamination risk and explosive atmosphere risk are both real concerns.
PFA584 Floor Scale
Configure It Once, Deploy It Everywhere
The PFA584 was designed to eliminate the complexity of site-by-site scale procurement. A globally standardised set of components — platform, feet, load cells, interface — can be mixed and matched to build exactly the scale your application demands.
Out-of-the-Box Accuracy
Factory calibration values are stored directly in the scale. The moment it’s powered up, it’s measuring accurately. No on-site calibration required to get started.
Globally Approved for Multinational Operations
One scale. One approval. Pre-approved globally under OIML and regional directives, the PFA584 eliminates the country-by-country compliance overhead that adds weeks to commissioning timelines.
Versatile Interface Options
Choose from wired analog, SICSpro digital, or cable-free wireless load cells depending on your environment and integration requirements. Works with the widest range of Mettler Toledo terminals.
Configurable for Hazardous Areas
The PFA584 can be configured with intrinsically safe load cells for Zone 2/22 deployment. Wet and dry environments both supported.
PTA469 Floor Scale (U-Shaped Pallet Scale)
Load It Faster
The U-shaped design eliminates ramps entirely. Move the pallet jack into the open channel, lower the load, done. No inclines to navigate, no time wasted. Your weighing process just got faster.
Safer by Design
No ramp means no one has to push heavy loads uphill. Workers, forklifts, and pallet jacks enter from the side — reducing strain, reducing risk, reducing accidents. Hazard elimination built into the product geometry.
Longer Platform Life
Wheeled vehicles never cross the platform — they load into it. That eliminates the wear and impact damage that shortens a conventional floor scale’s working life. The PTA469 delivers a significantly better ROI over its lifecycle.
Easy to Clean, Easy to Move
The U-shape reduces surface area. Built-in handles let a single operator lift and reposition the scale. Designed for the kind of rapid turnaround that food processing and pharmaceutical environments demand.
Expandable
Optional attachments convert the U-platform into a standard rectangular floor scale, enabling weighment of loads larger than the base footprint. One purchase, multiple configurations.
SYSTEM COMPONENTS
A complete explosion-proof floor scale system from GSS comprises the following core components. Each component is selected and matched by our technical team to ensure full system compliance in your specific hazardous zone classification.
| Component | Description |
|---|---|
| Scale Platform / Base | Structural foundation of the weighing system. Available in 304 stainless steel or mild steel. Sizes and capacities vary by model. The platform houses the load cells and bears all mechanical load. |
| Load Cells | Transducers that convert applied weight into an electrical signal. METTLER TOLEDO systems use either analog load cells (stainless steel, hermetically sealed) or POWERCELL® digital load cells (PFD779) for superior accuracy and individual diagnostics. |
| Junction Box | Consolidates the load cell signals from all corners of the platform into a single output. In explosion-proof configurations, junction boxes are rated IP69K and stainless steel. The POWERCELL® system (PFD779) eliminates the need for traditional junction boxes entirely. |
| Intrinsic Safety Barrier / Zener Barrier | Required for Zone 1/21 and Zone 2/22 installations. Limits the energy in the hazardous area circuit to levels incapable of causing ignition, even under fault conditions. |
| Weighing Terminal / Indicator | The operator interface displaying weight readings, providing tare, net/gross functions, and process outputs. For hazardous areas, METTLER TOLEDO offers Ex-rated terminals (e.g., IND560x, IND570xx, IND780x) with appropriate enclosure and electrical protection. |
| Signal Cable / Connection Harness | Rated, shielded cable connecting the platform to the terminal. Length and specification depend on installation distance and zone classification. |
| Mounting Feet / Levelling Pads | Adjustable feet ensure the platform sits level on uneven floors. Critical for measurement accuracy. Rubber pads or stainless steel options depending on environment. |
| Optional Ramp Kit | For PFD779 and PFA584 installations requiring above-floor mounting. Not required for PTA469 (U-shaped design) or PFA569 (low-profile). |
| Optional Pit Frame / Liner | For flush-to-floor pit installations. Ensures a flush surface for rolling loads directly onto the platform. Available as Quick-Pit frame or full pit liner for the PFD779 and PFA584. |
PRODUCT SPECIFICATIONS
PFD779 PowerDeck™ Floor Scale
| Specification | Detail |
|---|---|
| Model | PFD779 (PowerDeck™) |
| Material | Type 304 Stainless Steel |
| Capacity Range | 300 kg – 6,000 kg |
| Platform Sizes | 0.8×0.8m / 1.0×1.0m / 1.2×1.2m / 1.5×1.25m / 1.5×1.5m / 2.0×2.0m |
| Platform Height | 78mm (capacities ≤6t) / 104mm (higher-capacity configs) |
| Minimum Readability | 100 g |
| Certified Readability | 500 g – 1,000 g (configuration dependent) |
| Repeatability (typical) | 40 g – 300 g (configuration dependent) |
| Accuracy | Up to 10,000e (dual interval); up to 60,000d internal resolution |
| Scale Interface | POWERCELL® PDX Digital Load Cells |
| Number of Load Cells | 4 |
| Junction Box | None required (digital POWERCELL® system) |
| Protection Rating | IP68 / IP69K |
| Cable Length | 3m standard |
| ATEX Approval | Cat. 3GD — Zone 2/22 (IIB+H2, T4) |
| IECEx Approval | Yes |
| Legal for Trade | OIML |
| Environment | Wet & Harsh (≥IP66) |
| Operating Temperature | -10°C to +40°C |
| Construction | Pit or top-of-floor installation |
| Compatible Terminals | IND570, IND780, IND890, IND560x (Ex-rated) |
PFA569 Liftop Floor Scale
| Specification | Detail |
|---|---|
| Model | PFA569 (Liftop) |
| Material | Type 304 Stainless Steel throughout |
| Capacity Options | 1,000 kg / 2,500 kg / 5,000 kg |
| Platform Sizes | 48″×48″ (1,220×1,220mm) / 60″×60″ (1,524×1,524mm) |
| Platform Design | Hinged liftop with integrated gas springs |
| Platform Height | Low-profile (ground-level loading) |
| Minimum Readability | 200 g |
| Load Cell Type | Hermetically sealed stainless steel analog load cells |
| Junction Box | IP69K Stainless Steel |
| Protection Rating | IP69K |
| Levelling | Adjustable stainless steel feet |
| ATEX Suitability | Intrinsically safe configurations available (Zone 1/21 & Zone 2/22) |
| Legal for Trade | OIML |
| Application | Hygienic/washdown environments, hazardous area (IS configuration) |
| Operating Temperature | -10°C to +40°C |
| Cable Length | 5m standard |
| Compatible Terminals | IND570, IND231/236, IND560x (Ex-rated) |
| Special Feature | Gas-spring controlled lift — opens and closes with one hand |
PFA584 Floor Scale
| Specification | Detail |
|---|---|
| Model | PFA584 |
| Material | Mild Steel (painted) or Stainless Steel (configurable) |
| Capacity Options | 1,500 kg / 3,000 kg |
| Platform Sizes | 1,000×1,000mm / 1,250×1,250mm / 1,500×1,000mm / 1,500×1,500mm |
| Platform Height | 78mm |
| Minimum Readability | 100 g |
| Certified Readability | 500 g – 1,000 g |
| Repeatability (typical) | 150 g |
| Scale Interface | Analog / SICSpro Digital / Cable-Free (wireless) |
| Load Cell Options | Dry environment / Wet environment (hermetically sealed) |
| Protection Rating | IP65 (Mild Steel) / IP67–IP69K (Stainless Steel) |
| ATEX Suitability | Zone 2/22 — configurable with IS load cells and barriers |
| Legal for Trade | OIML (globally pre-approved) |
| Environment | Dusty & Light Wet (MS) / Wet & Harsh (SS) |
| Operating Temperature | -10°C to +40°C |
| Cable Length | 5m standard |
| Compatible Terminals | IND570, IND231/236, IND560x (Ex-rated) |
| Key Feature | Globally standardised — identical ordering worldwide |
PTA469 Floor Scale (U-Shaped Pallet Scale)
| Specification | Detail |
|---|---|
| Model | PTA469 |
| Material | Type 304 Stainless Steel |
| Platform Shape | U-shaped (open channel entry) |
| Capacity Options | 2,500 kg / 5,000 kg |
| Platform Sizes | 48″×48″ (1,220×1,220mm) / 48″×60″ (1,220×1,524mm) / 60″×60″ (1,524×1,524mm) |
| Platform Height | Low-profile (no ramp required) |
| Minimum Readability | 100 g |
| Load Cell Type | Hermetically sealed stainless steel analog load cells |
| Protection Rating | IP65 |
| Levelling | Adjustable feet (built-in) |
| ATEX Suitability | Zone 2/22 — configurable with IS components |
| Legal for Trade | OIML |
| Application | Pallet, container, drum weighing without ramps or pits |
| Operating Temperature | -10°C to +40°C |
| Cable Length | 5m standard |
| Compatible Terminals | IND570, IND231/236, IND560x (Ex-rated) |
| Special Feature | U-shape eliminates drive-over wear; built-in handles for repositioning |
| Accessories | Platform extension attachments for wider loads |
FREQUENTLY ASKED QUESTIONS (FAQ)
What is an explosion-proof floor scale?
An explosion-proof floor scale — also called a hazardous-area scale or intrinsically safe floor scale — is a weighing instrument certified for use in classified explosive atmospheres. Certification means the scale has been tested and proven incapable of generating enough electrical energy or heat to ignite flammable gases, vapors, or combustible dusts present in the surrounding environment. These scales carry approvals from bodies such as ATEX (EU/GCC), IECEx, and FM, depending on the region of operation.
What is the difference between Zone 1, Zone 2, and Division 1/2?
Zones and Divisions both describe how frequently a potentially explosive atmosphere is present in a given area. Zone 1/Division 1 means an explosive atmosphere exists under normal operating conditions — standard day-to-day operations. Zone 2/Division 2 means an explosive atmosphere is not normally present but could occur during abnormal conditions, spills, or maintenance activities. Zones are classified under IEC/ATEX standards (Europe, Asia, GCC, Africa); Divisions under the NFPA NEC (United States). Equipment must be approved for the specific zone in which it will be installed — a Zone 2 scale cannot be used in a Zone 1 area without the appropriate certifications.
Which of these scales can be used in Zone 1/21?
The PFA569 Liftop, when configured with fully intrinsically safe load cells and an approved IS barrier and terminal, is suitable for Zone 1/21 applications. The PFD779, PFA584, and PTA469 are standard-configured for Zone 2/22. Contact GSS if you require Zone 1 certification — we will specify the correct configuration and supporting components.
Can these scales be installed in a pit or flush to the floor?
Yes. The PFD779 and PFA584 can be installed either above floor level (top-of-floor) or in a prepared pit using a Quick-Pit frame or pit liner. Pit installation provides a flush surface ideal for rolling pallet jacks or carts directly across. The PTA469’s U-shape eliminates this requirement — its open geometry allows loading from the side at ground level without a pit or ramp.
What type of weighing terminals are compatible with these scales in hazardous areas?
For hazardous area installations, the weighing terminal must also carry the appropriate Ex rating and be located either within the hazardous zone (using an explosion-proof or purge/pressurized enclosure) or outside it (with a certified intrinsic safety barrier in between). Compatible Mettler Toledo terminals for Ex applications include the IND560x, IND570xx, and IND780x. GSS specifies the complete system — platform, barrier, and terminal — to ensure full installation compliance.
How often do explosion-proof floor scales need to be inspected?
For fixed installations, IEC guidelines recommend a maximum interval of 3 years between periodic inspections, subject to expert review. For moveable or portable equipment, the interval should not exceed 12 months. Enclosures that are regularly accessed (such as battery compartments) require detailed inspection at a minimum every 6 months. All equipment should be visually inspected by a trained operator before each use. GSS offers calibration and preventive maintenance contracts aligned with these requirements.
Do these scales comply with SASO and NMI metrological requirements?
Yes. All Mettler Toledo floor scales in this range carry OIML certification, which forms the technical basis for legal-for-trade approval under SASO (Saudi Standards, Metrology and Quality Organization) and equivalent regional bodies in the GCC. GSS, as the official Mettler Toledo partner in KSA and UAE, supports customers through the SASO type approval and site verification process.
What is the difference between the PFA584 and the PFD779?
The PFA584 is a modular, configurable platform scale best suited for environments where flexibility and global procurement standardisation are priorities. It uses analog or SICSpro load cells and is configurable for mild steel or stainless steel. The PFD779 PowerDeck™ is a premium-tier scale using METTLER TOLEDO POWERCELL® digital load cells, delivering significantly higher accuracy (up to 10,000e), real-time operator guidance, and built-in diagnostics. The PFD779 is the right choice where accuracy, diagnostics, and long-term performance in harsh environments are the primary drivers.
Can I weigh pallets on the PFD779 or PFA584?
Yes, both can be used for pallet weighing. However, if your primary workflow involves loading pallets with a pallet jack or forklift, the PTA469 U-scale is a more efficient choice — the open channel eliminates the need for ramps, speeds up loading, and reduces drive-over wear on the platform.
How do I get a quote for a hazardous area floor scale in Saudi Arabia or UAE?
Contact Global Scales & Systems directly. Our technical team will review your hazardous area classification, process requirements, and installation conditions and specify the correct scale, terminal, and barrier configuration for full compliance. We cover Riyadh, Jeddah, Dammam, and Dubai, with on-site commissioning, calibration, and service support across the GCC.
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