The PR-18 series has been updated with low, high, and extreme temperature ranges; all of the new models will be PR-18(L,H,E)*. The older models have been discontinued.
Omega's PR-18 series probe with standard aluminum protection head with flip-top includes PT100 Ω platinum RTD element or PT1000 RTD element and 1/2" NPT mounting threads. The sheath is made of 316 stainless steel. These probes can be used alone, or can be placed directly into a thermowell. The spring load option should not be ordered unless a thermowell is used. All probes include a screw terminal block for easy connection of insulated copper extension wire. Replacement probes (without protection head assembly) are available as well as a "spring-loading" option which allows for the probe to bottom out in a thermowell for quicker and more accurate response. This probe can be used in tanks, vessels, and large pipes for measurement of flow material.
RANGE 选项: L for LOW (-50 to 250°C) H for HIGH (-50 to 450°C) E for EXTREME (-200 to 600°C)
NUMBER OF WIRES 选项: 3 for 3 WIRE 4 for 4 WIRES
OHMS 选项: 100 for 100 OHMS 1000 for 1000 OHMS
SHEATH DIAMETER 选项: 1/8 for 1/8" DIAMETER 3/16 for 3/16" DIAMETER 1/4 for 1/4" DIAMETER
SHEATH LENGTH 选项: 2 for 2 INCHES 3 for 3 INCHES 4 for 4 INCHES 6 for 6 INCHES 9 for 9 INCHES 12 for 12 INCHES 18 for 18 INCHES 24 for 24 INCHES
OPTION 1 选项: 无（选项为空白） for STANDARD -TX for TEMPERATURE TRANSMITTER 0 TO 100°c -TX12-TX-SCALED for TRANSMITTER SPECIALLY SCALED
OPTION 2 选项: 无（选项为空白） for STANDARD -SL for SPRING-LOADED
OPTION 3 选项: 无（选项为空白） for STANDARD RP for REPLACEMENT PROBE