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时间:2018/7/23 9:47:03

Operating Principle

The SPL 501 is used extensively for compressor, used oil analysis, on-engine and hydraulic fluid applications. It is ideal for installations where form factor and small sample volume are important.

Our viscosity management technology is based on a simple and reliable electromagnetic concept。 Two coils move the piston back and forth magnetically at a constant force。 Proprietary circuitry analyzes the piston’s two-way travel time to measure absolute viscosity。

A built-in temperature detector (RTD) senses the actual temperature in the sampling chamber. Constant in and out motion keeps samples fresh, mechanically scrubs the sampling area and provides excellent viscosity tracking.

Measurements can be made in any of 6 different 20:1 viscosity ranges between 0.5 and 500 centipoise (cP).

Recommended fluid flow over the sensor is up to 30 cm/sec.


Multiple Ranges (one piston per range)

Additional Cable

*High Pressure System (also available)

Key Features

*Easily installed and serviced

*Internal platinum temperature probe

*Automatic self-cleaning

*No seals

*All 316 stainless steel construction

*Small sample volume

*Proven technology

*Mates to 1/2”NPT threaded opening

The SPL501 correlates with ASTM D445



0。5 to 500 centipoise(cP)

Piston Ranges

0.5-10cP, 1-20cP, 2.5-50cP,

5-100cP, 10-200cP, 25-500cP


±1.0 %


±0。8% ofReading

Temperature Sensor

4 wire internal RTD

Wetted Materials

316L and 430 Stainless Steel

Maximum Particle Size

25-100 Microns (Range Dependent)

Max Ambient Temperature

375°F (190°C)

Max Operating Pressure

1,000 psi (70。3 bar)

Standard Cable Length

3 Feet (1meter)

Power ViscoPro

1600 or 2000 electronics

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