The Parker Service Junior SCJN-600-01 is a robust, versatile, and user-friendly digital pressure gauge designed for a wide range of industrial service and maintenance applications. It combines the reliability of the Parker Senso Control line with a compact, economical design, making it an ideal tool for technicians, engineers, and maintenance personnel.
This model is particularly noted for its dual-range capability, allowing it to measure both vacuum and positive pressure with high accuracy.
Key Features
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Dual Pressure Range: Unique ability to measure both vacuum (down to -4 bar / -58 psi) and positive pressure (up to 600 bar / 8700 psi) with a single instrument.
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High Accuracy: Offers precise measurements, typically with an accuracy of ±0.5% F.S. (Full Scale), ensuring reliable data for diagnostics and system checks.
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Compact and Rugged Design:Â The “Junior” form factor is easy to handle and transport. It is built to withstand the rigors of daily use in demanding industrial environments.
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Large, Easy-to-Read LCD Display:Â Features a clear digital display for quick and error-free reading of pressure values, even in low-light conditions.
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Multiple Units: Allows the user to switch between different pressure units (e.g., bar, psi, MPa, kg/cm²) for convenience and international use.
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Peak Hold Function:Â Can capture and display the maximum (peak) or minimum (valley) pressure value reached during a measurement cycle, which is crucial for diagnosing intermittent issues.
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IP65 Protection Rating:Â The housing is dust-tight and protected against water jets, making it suitable for use in dirty or wet conditions.
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Long Battery Life:Â Powered by standard, easily replaceable batteries, designed for extended operational use.
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Stainless Steel Sensor:Â The core pressure sensor is made of stainless steel, providing excellent resistance to media like compressed air, water, and hydraulic oils.
Technical Specifications (SCJN-600-01)
| Feature | Specification |
|---|---|
| Model | SERVICE JUNIOR SCJN-600-01 |
| Brand / Line | Parker / Senso Control |
| Pressure Range | -4 … 0 … 600 bar (-58 … 0 … 8700 psi) |
| Accuracy | ±0.5% of F.S. (Full Scale) |
| Resolution | 0.1 bar (in the bar range) |
| Display | Large, custom LCD |
| Units | bar, psi, MPa, kg/cm² (user-selectable) |
| Peak Hold | Yes (Max / Min value capture) |
| Power Supply | 2 x 1.5V AAA batteries |
| Process Connection | G¼ (¼” BSPP) internal thread (standard) |
| Wetted Materials | Stainless Steel |
| Housing Protection | IP65 |
| Operating Temperature | 0°C to +50°C (+32°F to +122°F) |
Typical Applications
This gauge is a versatile tool used across many industries for:
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Hydraulic System Service:Â Setting and verifying pressure relief valves, diagnosing pump and cylinder performance.
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Pneumatic System Maintenance:Â Checking compressor output, regulator settings, and circuit pressure.
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Industrial Plant Maintenance:Â General pressure monitoring on machines and production lines.
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Automation & Robotics:Â Commissioning and troubleshooting pneumatic and hydraulic actuators.
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Service Vehicles & Mobile Workshops:Â Its robust and portable design makes it perfect for field service technicians.
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Quality Control & Testing:Â Performing pressure tests on components and systems.

















