Control dynamics presents a conductivity meter that has all the features, which were built into the ph meter - high , reproducibility, stability and a continuous duty cycle. The model apx 185 laboratory conductivity meter incorporates a j fet controlled oscillator ad eprom switching, with automatic ability to choose 100hz operation. It has a relative of [ least digit of selected range, repeatability of [ least digit and stability [drift 24 hrs] after warm up of 30 minutes of less than 1 least digit. Salient features: wide measurement range from 200 ns/cm to 200 ms/cm [1s = 1 mho]; high sensitivity - 100 ps/cm using 0.01 cell constant; direct display of conductance - the display is in conductance ms/cm and [s/cm [conductivity x cell constant] eliminating cell constant determination and user multiplication; automatic temperature compensation with an optional ntc probe, the conductivity variations of the sample with temperature is compensated; ratiometric measurement - using two conductivity cells the instruments can be used as a conductivity comparator for quality control "go-no go" tests; automatic selection of optimum frequency - the instrument automatically chooses the internal frequency of 100 hz or 1000 hz to suit the measurement range for very high accuracy readings; and digital readout - bright 3-1/2 digit 7-segment led display for ease of observation of readings from 0.0001 [s/cm to 19.99 ms/cm.
