One Autosampler for both oils and coolants
Oils testing laboratories are adding more sample types as their industry becomes more complex. The Oils 7400 Homogenizing Autosampler allows two sample matricies to be introduced to an ICP instrument from the same system. Boasting a dual port rinse station fed by two separate peristaltic pumps, it can change between oils and coolants testing on demand. With improved speed, mixing capability and sample drip capture, the Oils 7400 delivers robust analysis without compromise.
Used oil samples typically contain particulate material that can settle in a sample tube prior to analysis; this can lead to generation of non‑representative data. The Oils 7400 automation has been designed to resolve this problem.
Prior to analytical measurement, each sample is homogenized by the autosampler. A stirring paddle mounted next to the sample probe efficiently mixes each sample and, with the sample probe, is cleaned at the rinse station. Sample mixing is configurable, via a software dashboard, to meet the challenge of more viscous oil samples.
Faster and smoother XYZ movement saves up to 2 seconds per sample compared to previous generation oils automation. Analyze 2 samples per minute with the ASXPRESS PLUS rapid sample introduction for ASTM 5185 and ASTM 6130 testing.
Superior motion control with the 7000 Series automation platform allows more accurate and precise XYZ movement for robust sample analysis.
An improved drip cup allows sample drip capture and retention to eliminate cross contamination at faster XYZ movement. An integrated dual port rinse station helps minimize analyte carryover and cross contamination.
New Drip Cup Design
An improved drip cup design captures and retains any sample droplets, eliminating cross contamination while the probe and stirrer move over the sample tubes. The new design uses a cam shaft to provide smoother movement and also has and an internal lip to ensure liquid retention while moving at higher speeds.
Dual Rinse Station
Used oil and coolant samples can be analyzed from the same automation with a sliding rinse station. For oils testing, the probe and stirrer are rinsed in ports fed from a peristaltic pump with kerosene or white spirit. For coolants testing, the rinse station slides over and engages a second peristaltic pump that delivers an appropriate rinse agent such as water or nitric acid. By changing the sample probe, stirring paddle and ICP glassware, the analyst can switch from oils testing to coolants testing within 5 minutes.