What is the response time for viscosity and temperature?
Viscosity measurements are made every 200 milliseconds. Every two seconds the data is statistically processed and the analog outputs refreshed. Data is further processed using a rolling average of the 2 second data summaries computed at the time of the log entry. The data log interval can be set with one click at intervals from 10 seconds to 10 minutes [see illustration below]. Viscosity measurement response time typically depends more on the fluid refresh rate than on our measurement frequency unless a long logging interval has been selected. Temperature characteristic response time is 25 seconds or less. There is a graphical display recorded with our standard graphing software at a ten second log interval with a VS205 viscometer shown below illustrating the measurements observed when a room temperature [20degC] probe is plunged into 70 degC. water. 20 series viscometers such as the VSH-223 will have an even faster response.
