Hammonds HC600-1P7 Pressure Simulating Calibration Device (PSCAL)

The PSCAL device simulates real-world product line pressures to deliver accurate and repeatable calibration of Hammonds additive injection systems. It draws additive from a graduated reservoir, allowing technicians to set injection ratios without exposing fuel loads to Biobor JF or other additives. This allows precise calibration, eliminates additive waste, and significantly reduces the complexity associated with open-container sample collection.

Because additive injection performance is directly tied to system pressure, calibrating at the incorrect pressure can result in inaccurate injection ratios. The PSCAL enables technicians to dial in the same pressure measured on the fuel truck or hydrant cart, ensuring the system operates exactly as it will during live fueling. This prevents under- or over-treatment of Jet A during aircraft refueling operations.

The HC600-1P7 PSCAL is specifically designed to support Biobor JF injection, making it ideal for microbial control and fuel system protection programs. Its reservoir and calibration system are optimized for additives with properties similar to Biobor. The unit can help operators maintain proper additive ratios to ensure reliable fuel quality.

Yes. During calibration, the PSCAL isolates the additive system, diverting all measured additive into a graduated bottle rather than the fuel stream. This ensures the aircraft’s Jet A supply remains untreated while the injection pump is dialed in. The method enhances safety and prevents unintentional fuel loading of the aircraft.

The HC600-1P7 PSCAL is compatible with fueling systems that operate at line pressures of up to 100 PSI and flow rates ranging from 25 to 250 GPM (with intermittent flow rates of up to 300 GPM). These specifications align with typical operations on fuel trucks, hydrant carts, and ground-based additive injection systems. Its design fits seamlessly into standard aviation fueling workflows.

The PSCAL’s dual-scale (gallon/liter) reservoir features clear, measurable volume markings, allowing technicians to verify injection ratios with precision. By drawing the additive directly from the calibrated column, the operator can confirm the actual flow per stroke of the metering pump. This creates a far more consistent and predictable calibration than relying on open containers or improvised measurement methods.

Yes. The system includes the SCG212 suction calibration gauge (2" × 12", 12-oz capacity), which provides real-time readings of additive draw. This gauge helps technicians confirm correct pump operation and ensures accurate ratio adjustments. The integrated gauge also reduces the need for external measurement tools.

The HC600-1P7 PSCAL is mounted on a one-person movable hand cart, making it easy to position around the fueling vehicle or maintenance bay. Its compact footprint allows it to be rolled into tight service areas without requiring additional equipment. All controls are accessible from one side, simplifying calibration workflow for a single technician.

The HC600-1P7 uses a positive-displacement fluid motor to drive its one-piston metering pump, ensuring highly stable and predictable additive flow. This design maintains consistent injection output regardless of minor variations in pressure or flow. The result is a more accurate calibration and safer fuel treatment process.

The PSCAL features hard-anodized aluminum motor components and 300-series stainless steel wetted parts, ensuring corrosion resistance and long service life. A Bengal silver powder-coated finish protects the cart from ramp conditions. Its rugged design makes it well-suited for daily use in demanding aviation fueling environments.

The HC600-1P7 can achieve injection ratios up to approximately 355 ppm when used with Biobor® JF. This allows operators to meet a wide range of fuel treatment requirements. The unit is accurate across the full ratio range, enabling both standard and high-ratio calibration scenarios.

Hammonds recommends annual maintenance to ensure continued accuracy and reliability. Regular inspection includes checking elastomers, verifying calibration accuracy, and ensuring the reservoir and gauge remain clean. Routine service helps maintain warranty coverage and prolongs the system's lifespan.

This PSCAL device dramatically simplifies additive injection calibration by eliminating guesswork, improving measurement accuracy, and replicating true operating pressure conditions. It reduces downtime, enhances dosing precision, and prevents accidental fuel treatment during calibration. For operators who rely on Biobor® JF injection or other additive programs, it is an essential tool for maintaining consistent fuel quality and compliance.

The Hammonds HC600-1P7 PSCAL includes a three-year warranty that covers defects in materials and workmanship. As long as the unit is operated within its specified limits and annual maintenance is performed as recommended, the warranty remains in full effect. This provides operators with confidence that their pressure-simulating calibration system will perform reliably over the long term.