ArlynGuard D Intrinsically Safe Drum Scales - From 500lb to 1000lb
Overview
The ArlynGuard D intrinsically safe drum scale is purpose-built for weighing 55-gallon drums, chemical containers, pails and other process vessels in hazardous industrial locations. It combines a low-profile 30" or 36" platform with an included loading ramp, rugged stainless steel load sensors and ArlynGuard intrinsically safe weighing electronics. Available in 500 lb and 1,000 lb capacities, the ArlynGuard D is designed for drum filling, batching, inventory monitoring and material-use applications where flammable gases, vapors or combustible dust may require intrinsically safe equipment. Battery operation is standard, with optional safe-area power, data communication, PLC connectivity and remote monitoring configurations available. See more product details| Product Code | Capacity & Resolution | Platform Size | Aluminum | Stainless |
|---|---|---|---|---|
| D5-30 | 500 lbs x 0.1 lb | 30" x 30" x 1 7/8" (Ramp Size 30" x 15") | $2409 | $3129 |
| D10-30 | 1000 lbs x 0.2 lb | 30" x 30" x 1 7/8" (Ramp Size 30" x 15") | $2409 | $3129 |
| D5-36 | 500 lbs x 0.1 lb | 36" x 36" x 1 7/8" (Ramp Size 36" x 15") | $2569 | $3429 |
| D10-36 | 1,000 lbs x 0.2 lb | 36" x 36" x 1 7/8" (Ramp Size 36" x 15") | $2569 | $3429 |
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Details
Need an intrinsically safe scale for weighing drums?
The ArlynGuard D combines an intrinsically safe ArlynGuard weighing system with a low-profile platform and included ramp specifically suited for loading and weighing 55-gallon drums and other industrial containers in hazardous locations. Standard models are available in 500 lb and 1,000 lb capacities with 30" x 30" or 36" x 36" platforms.
Designed Specifically for Drum Weighing in Hazardous Areas
Many industrial processes require drums to be weighed where flammable gases, solvent vapors, combustible dust or other potentially hazardous materials may be present. Standard industrial weighing equipment may not be appropriate for these classified locations. The ArlynGuard D intrinsically safe drum scale combines the proven ArlynGuard hazardous-location weighing system with the loading convenience of Arlyn's industrial drum-scale design. The result is a dedicated solution for facilities that need to roll drums directly onto a scale while maintaining an intrinsically safe weighing configuration. Typical applications include chemical manufacturing, coatings and adhesives, pharmaceutical production, specialty manufacturing, waste handling, filling operations and other processes involving hazardous or volatile materials.Low-Profile Platform with an Included Loading Ramp
A drum scale should be easy to load without requiring operators to lift a heavy container onto the weighing surface. ArlynGuard D platforms are only 1 7/8" high and include a matching 15"-deep ramp. The standard 30" x 30" and 36" x 36" platform sizes provide ample space for common 55-gallon drums, pails and process containers. The open, rail-less platform also allows appropriately sized loads to overhang the platform when necessary. Custom platform dimensions and capacities may also be available for applications involving unusual drum sizes, containers or material-handling requirements.Intrinsically Safe ArlynGuard Weighing System
ArlynGuard D uses the same intrinsically safe weighing architecture found throughout the ArlynGuard product family. The system is designed for hazardous classified environments including Class I, II and III, Division 1, Groups A through G and Class I, Zone 0, AEx ia IIC applications, subject to the configuration and approval requirements of the installation. ArlynGuard systems use FM-approved weighing components, including the MKE-5-IS digital indicator and approved intrinsically safe load-cell models. Because hazardous-location requirements are application-specific, the final scale configuration should always be selected according to the facility's actual area classification.Rugged Construction for Industrial Drum Handling
Four stainless steel load sensors are integrated into the scale platform to measure the load directly without mechanical pivots or lever assemblies. The sensors are precision matched and designed for the shock, vibration and uneven loading commonly encountered in industrial environments. Standard ArlynGuard D platforms are available in rugged aluminum construction, with stainless steel construction available for harsher or more corrosive environments.500 lb and 1,000 lb Drum Scale Capacities
ArlynGuard D is available in two standard weighing ranges:- 500 lb capacity with 0.1 lb readability
- 1,000 lb capacity with 0.2 lb readability
Battery Operation or Continuous Safe-Area Power
The standard configuration uses rechargeable NiMH batteries so the weighing system can operate without bringing an ordinary AC power source into the hazardous area. Batteries must be recharged in a safe area. For fixed installations or continuous process monitoring, an optional AC-powered configuration with an intrinsically safe safety barrier can supply power from the safe area. This arrangement can also provide a pathway for communication and control signals between the hazardous and safe areas.PLC, Data Collection and Safe-Area Integration
An intrinsically safe drum scale does not have to operate as an isolated weighing device. Depending on the selected ArlynGuard configuration, weight data can be routed to equipment located in a safe area for process monitoring, recording or automation. Available integration options may include:- RS-422 and RS-485
- RS-232 and USB communication
- 4-20 mA or voltage analog output
- Ethernet and Wi-Fi connectivity
- Modbus RTU / ASCII and Modbus TCP
- EtherNet/IP
- PROFINET
- Setpoint control for filling and batching
- USB data logging
- Google Sheets data logging
- AxChange cloud monitoring
ArlynGuard D or ArlynGuard P?
Choose ArlynGuard D when drums or similar containers will regularly be rolled onto the scale and an integrated ramp is important to the workflow. Choose ArlynGuard P when you need a general-purpose intrinsically safe platform scale and drum-specific loading is not the primary requirement.
Common ArlynGuard D Applications
- 55-gallon drum weighing
- Chemical drum inventory monitoring
- Drum filling and batching
- Solvent and coating production
- Hazardous-material processing
- Waste and recovery operations
- Ingredient or raw-material consumption monitoring
- Process vessels and containers within the scale's rated capacity
Frequently Asked Questions
What is an intrinsically safe drum scale?
An intrinsically safe drum scale is a weighing system designed so that its electrical energy is limited to levels appropriate for designated hazardous locations. The ArlynGuard D combines this type of weighing system with a low-profile ramped platform designed specifically for drums and industrial containers.
Can the ArlynGuard D weigh a 55-gallon drum?
Yes. ArlynGuard D was designed around industrial drum-weighing applications. Standard platforms are available in 30" x 30" and 36" x 36" sizes with 500 lb or 1,000 lb capacities.
Does the ArlynGuard D include a ramp?
Yes. The standard ArlynGuard D configuration includes a 15"-deep loading ramp matched to the platform width. The low 1 7/8" platform height helps operators roll drums onto and off the weighing surface.
Is an intrinsically safe drum scale the same as an explosion-proof drum scale?
The terms are sometimes used interchangeably when searching for hazardous-location equipment, but they describe different protection approaches. ArlynGuard D uses an intrinsically safe weighing design that limits available electrical energy. The correct equipment must always be selected according to the hazardous-area classification and installation requirements.
Can ArlynGuard D operate continuously without batteries?
Yes. An optional externally powered configuration uses a safety barrier between the hazardous and safe areas to provide continuous power. Standard battery-operated configurations are also available.
Can drum weight be sent to a PLC or control system?
Yes. Depending on the selected safe-area configuration, ArlynGuard systems can provide analog, serial, Ethernet and industrial-network interfaces including Modbus, EtherNet/IP and PROFINET. The required interface components are located or isolated according to the selected hazardous-area configuration.
Can ArlynGuard D be used with totes or unusually sized containers?
The standard D-series platforms are optimized for drums and similar containers. Other containers may be weighed when their dimensions and loaded weight are appropriate for the selected platform and capacity. Contact Arlyn Scales for custom platform sizes or capacities when a standard 30" or 36" platform is not suitable.
Available Upgrades
The ArlynGuard D can be configured for applications ranging from a standalone battery-operated drum scale to a continuously powered weighing system integrated with a PLC, SCADA system or data-collection platform. Available options depend on whether the indicator, communication equipment and control hardware are located in the hazardous or safe area. For an explanation of the available hazardous-location architectures, see ArlynGuard Intrinsically Safe Scale Configurations.Power Options
| Upgrade | Application |
|---|---|
| Rechargeable Battery Operation | Standard hazardous-area operation with batteries recharged in a safe area |
| AC Powered System with Intrinsically Safe Safety Barrier | Continuous or fixed installations requiring safe-area power |
Displays & Indicators
- MKE-5-IS intrinsically safe digital indicator
- Additional MKE-5 digital indicator located in the safe area
- Arlyn UpScale Touchscreen Indicator located in the safe area
- No-display configuration for applications requiring only a safe-area analog output
Connectivity & Communication
- Hazardous-Area Communication
- RS-422
- RS-485 on supported configurations
- Setpoint outputs for supported hazardous-area control applications
- Safe-Area Communication
- 4-20 mA or voltage analog output
- RS-232 serial communication
- USB PC communication
- Ethernet TCP/IP
- Wi-Fi TCP/IP with UpScale
Industrial Protocols
With an Arlyn UpScale indicator installed in the safe area:- Modbus RTU / ASCII
- Modbus TCP
- EtherNet/IP
- PROFINET
Filling, Setpoints & Process Control
- Programmable weight setpoints
- Relay control for filling and batching equipment
- Buzzer alarms
- Two- or three-color light towers
- Flow-rate monitoring with UpScale
- Remote ZERO, TARE, PRINT or CYCLE controls on supported safe-area configurations
Data Collection & Monitoring
- USB data logging
- Time and date output with supported MKE-5 configurations
- Remote Indicator PC software
- Google Sheets integration with UpScale
- AxChange cloud monitoring with UpScale
Printing & Barcode Options
Printing and barcode workflows can be added through supported safe-area configurations. Options include serial printing and UpScale-based thermal label, barcode and QR-code workflows. See our industrial scale printer comparison for currently supported printer configurations.
Need help selecting a configuration?
Hazardous-location equipment should be selected according to the classified area, required power source, location of the operator display and required communication or control interfaces. Contact Arlyn Scales and we can help configure the appropriate ArlynGuard D system.
Specifications
The following specifications apply to all standard ArlynGuard D models unless otherwise noted. For resolution and capacity details, refer to the “Capacities & Platform Sizes” section.
Performance
- Accuracy: ±0.1% of full scale
- Internal Resolution: 1 part in 500,000
- Minimum Sampling Rate: 10 Hz
- Tare/Zero Range: 100% of full scale
- Display Speed: Adjustable from 0.1 to 0.5 seconds
Platform & Construction
- Standard Platform Size with included Ramp: 30" x 30" (Ramp Size 30" x 15"), 36" x 36" (Ramp Size 36" x 15")
- Construction: Aluminum or Stainless Steel
- Design: Low-profile, fixed-position cradle with no pivots or levers
- IP Rating: Not rated for washdown—contact us for sealed enclosure options
- No Moving Parts: Load cell design minimizes failure and reduces maintenance needs
Power Supply
- Battery Power (Standard):
- (3) x 2600mAh NiMH AA rechargeable batteries
- Spare set + charger included
- Batteries must be changed in a safe area
- Typical operation: ~96 hours (dependent on features)
- AC Power (Optional):
- Requires Zener Barrier (Configuration #2)
- Ideal for continuous use or always-on operations
Display
- Indicator Type: 1” high graphical LCD digits
- Functions: Auto tare, keyboard tare, zero, net/gross toggle, unit conversion (lb, kg, etc.)
- Mounting: Stainless steel swivel mount
- Memory: 100+ stored tare locations
Calibration & Maintenance
- Calibration: Factory calibrated
- Field Calibration: Available via front panel (Safe Area Display required)
- Maintenance: Minimal due to solid-state “no moving parts” design
Safety & Compliance
- Certifications:
- FM Approved (Standards 3600, 3610, 3611, 3810)
- Class I, II, III Division 1 Groups A–G
- Class I, Zone 0 AEx ia IIC (T3, Ta=60°C)
- Division 2 approval for nonincendive use
- Approved Components:
-
- Digital Indicator: Model MKE-5-IS-a (b)
- Load Cells Models: 620-300-IS, 620-100-IS, 620-50-IS, 620-25-IS, 620-10-IS, 520-10000L-IS, 520-5000L-IS, 520-5000IS, 520-2500-IS, 520-1250-IS, 320-500-IS and 320-250-IS
Documentation
Download the Full ArlynGuard D Specification Sheet (PDF)Frequently Asked Questions
What hazardous environments is the ArlynGuard D certified for?
The scale is certified for Class I, II, III Division 1, Groups A–G, as well as Class I, Zone 0 hazardous locations. It meets FM Approval standards and is safe for use around chlorine gas, flammable vapors, combustible dusts, and other hazardous materials.
What makes the ArlynGuard D different from other drum scales?
Unlike generic platforms, the ArlynGuard D is specifically designed for Drums. It includes Ramp that becomes easier to role the drums to the scale.
Why is stainless steel construction important?
Many competitive models use painted or powder-coated steel, which can corrode when scratched. The ArlynGuard T is built entirely from stainless steel, making it highly resistant to corrosion—ideal for chlorine or other chemically aggressive environments.
How accurate is this scale compared to other options?
The ArlynGuard D provides ±0.1% accuracy—up to five times more precise than pivot-based models using single load cells. The four-load-cell design ensures consistent readings, even if the cylinder isn’t perfectly centered.
Is this scale battery powered or AC powered?
Both options are available. Standard models run on rechargeable batteries (up to 96 hours per charge). For permanent setups, an AC Powered System (Configuration #2) is available and includes an intrinsically safe Zener Barrier.
Can I integrate this with our data systems or SCADA network?
Yes. Safe Area configurations support a wide range of outputs including Modbus, Ethernet, Wi-Fi, 4–20mA analog, USB logging, and even direct Google Sheets integration via our AxChange platform.
What display options are available?
You can choose from our standard MKE-5 digital indicator, the advanced UpScale touchscreen interface, or a no-display option for output-only environments. Secondary Safe Area Displays are also available.
Can I connect multiple platform to a single display?
Yes. Dual configurations allow to 6 platforms to be connected to one interface. This is ideal for facilities weighing multiple drums at once or managing simultaneous processes.
