
The 871CC sensors are basic, economical probes used for measurements ranging from ultrapure water (18+ Mohm•cm) through pure water and up to water supplies with conductivity values as high as 20 mS/cm.
Two cell factors are offered, 0.1 cm-1 and 10 cm-1. The 0.1 cm-1 types are used for resistivity measurements and any conductivity measurements below 200 uS/cm. They are offered with either titanium or monel electrode materials. The 10 cm-1 types are used for higher conductivity measurements above 200 uS/cm, and employ graphite electrodes covered with a removable plastic sheath.
For low and moderate temperature applications, a built-in 100 Kohm thermistor is used for automatic temperature compensation. For high temperature applications, a 100 ohm RTD is available and is recommended.
Several mounting styles are available, including threaded bushing (3/4 inch NPT), twist-lock, Tri-clamp sanitary, universal with O-ring seal and retractable with a gate valve assembly. Several mounting accessories are also offered, including flow chambers, threaded bushings and flanges.
The 871CC sensors are compatible with 875CR, 870ITCR, 873CC, 873RS, 873ACC, 873ARS and several older Foxboro analyzers and transmitters.