SM35/70-T 047824-303 | Industrial Pressure Sensor

Key Features and Advantages

High Pressure Accuracy: The SM35/70-T maintains ±0.5% accuracy across its full 35-70 bar measurement range, delivering reliable pressure monitoring in demanding hydraulic applications.

Robust Construction: Featuring a stainless steel pressure port and high-grade aluminum housing, this sensor withstands vibration, shock, and thermal cycling in mobile equipment and industrial environments.

Enhanced Media Compatibility: The integrated oil-filled isolation diaphragm protects sensitive electronics from harsh hydraulic fluids and diesel fuel, extending service life in contamination-prone applications.

Plug-and-Play Integration: With standardized M12×1 connectors and universal 4-20mA output, the SM35/70-T installs directly into existing control systems without additional signal conditioning.

Temperature Compensation: Advanced thermal compensation circuits maintain measurement integrity across the full -40°C to +125°C operating range, eliminating performance drift in extreme environments.

6SM37L-4.000

Application Fields

The SM35/70-T excels in mobile hydraulic systems and industrial machinery requiring high pressure monitoring. In agricultural equipment, it provides essential pressure feedback for hydraulic lifting systems and implement controls. Construction machinery utilizes this sensor for excavator boom cylinder pressure monitoring and hydraulic pump protection.

Industrial applications include hydraulic press pressure verification, injection molding machine monitoring, and lubrication system control. The SM35/70-T‘s diesel compatibility makes it ideal for fuel rail pressure monitoring in marine engines and generator sets. Material handling systems deploy this sensor for hydraulic braking pressure control on mobile conveyors and forklifts, leveraging its IP67 rating for dusty environments.

Related Products

SM20/50-T: Lower pressure range version (20-50 bar)
SM100/200-T: Higher pressure model (100-200 bar)
RPS-200: Pressure transmitter with HART protocol
STM-05: Temperature sensor for hydraulic reservoir monitoring
PSM-ADAPT-G: G¼ to NPT adapter kit
M12-F2F: Cable extension for remote mounting
HMS-A1: Hydraulic manifold block for multiple sensors

Installation and Maintenance

Installation Preparation: Clean the hydraulic port thoroughly before mounting the SM35/70-T to prevent contamination. Use proper sealing compound compatible with system media. Align the sensor vertically to prevent air entrapment in the pressure cavity. Route signal cables away from high-voltage wiring to avoid EMI interference.

Maintenance Recommendations: Perform zero-point calibration every 6 months using a certified pressure standard. Inspect the pressure port and seals annually for signs of wear or hydraulic fluid leakage. When replacing the SM35/70-T, capture the output reading at known pressures to ensure correct setup of replacement units. Always bleed air from the pressure line after installation.