A&D Weighing SV-1A Compact Vibro Viscometer (0.3 – 1,000 mPa·s)

Description

The SV-1A is the compact member of A&D’s SV series, using the same tuning-fork vibration measurement principle as the SV-10 and SV-100 but scaled down for small-volume work: a minimum sample of just 2ml in a dedicated tube, rather than the 10-35ml cups the other SV models use. That makes it a fit for precious, limited, or hard-to-source samples — formulation development batches, biological samples, or anywhere a larger draw isn’t practical.

Its range, 0.3-1,000 mPa·s, sits within the SV-10’s broader window but in a smaller, simpler footprint built specifically around the small-sample use case. Repeatability is ±1% of reading with ±5% accuracy across 1-10 Pa·s, a first reading appears within 15 seconds and continues to refresh in real time, and the low-shear vibration method (no rotating spindle) avoids disturbing delicate samples during the measurement. Like the rest of the SV series, it pairs with WinCT-Viscosity software for PC-based data acquisition and archiving, and supports simplified calibration using pure water.

**Frequently asked questions**

**Why choose the SV-1A over the SV-10?** The SV-1A is built around a 2ml minimum sample tube versus the SV-10’s 10-35ml cups, making it the better choice when sample volume is limited. Its measurement range (0.3-1,000 mPa·s) is narrower than the SV-10’s, so confirm your expected viscosity falls within range first.

**What kind of samples is the small-tube format suited to?** Anywhere sample volume is limited or expensive to obtain — formulation R&D batches, specialty chemical samples, and similar low-volume applications.

**Does it use the same software as the SV-10 and SV-100?** Yes, WinCT-Viscosity software works across the SV series for data acquisition, graphing, and archiving.