A/20K-S-GD

A/20K-S-GD is an A/20K series STRAP ON non-intrusive pipe mount thermistor. It features a 1.5” square copper plate with the sensor encapsulated on the back side of the plate to improve the thermal conductivity between the pipe and the sensor when an immersion-style sensor can’t be inserted into the pipe. The sensor is manufactured using ACI’s proven double encapsulation process to eliminate the effects of moisture upon the sensors as well as to improve the thermal response times using our high-quality, thermally conductive epoxy. For best accuracy and increased thermal conduction between the pipe and the sensor, ACI recommends cleaning the pipe before applying thermal grease as well as insulating the sensor from the effects of the ambient air. Applications include cold water systems, hot water systems, retrofit, hydronic heating systems, chillers.

• 20kohm nominal sensor output at 25ºC (77ºF)
• Brown/blue lead wire colors
• Response time (63% step change) is 30seconds nominal
• 1.25” to 4” pipe size
• Galvanized enclosure
• Operating temperature range from -40 to 93ºC, NEMA 1 (IP 10) rated
• 14” (35.6cm) lead length
• 22AWG (0.65mm) conductor size