Accurate easy to install pipe sensor
When you need to measure the temperature of a pipes contents and no thermowell is available this is the solution. Simply add a little heat transfer paste to the smooth side of the brass plate and fasten the assembly to the pipe with a hose clamp. The 9 thou thick brass shim stock plate conforms readily to even small diameter pipes. Then cover the whole assembly with insulation, running the lead wire to a nearby junction box.
The brass plate will provide excellent heat transfer from the pipe to the sensor sheath which we silver solder to the plate. The 3/16" OD sheath is smaller than our normal strap on sensor to promote rapid heat transfer.
The stainless steel braided lead wire jacket provides good abrasion resistance.
Platinum RTD's are the most stable temperature sensors between -50 and 400C. Their stability, wide temperature range and almost linear output make them the choice in demanding applications.
NTC Thermistors are the most sensitive sensors from -50C to +150C with temperature coefficients as high as several percent per degree C. This means that lead resistance has minimal effect on system accuracy.
4-20mA Transmitters using 100 ohm RTDs are available when RTDs have been specified for use with a panel that will not accept RTDs directly.