Configured for process and lab temperature measurement, this 1/4 x 12" (6.35 mm x 30.5 cm) RTD probe measures -58 to 842°F (-50 to 450°C) with a 100 Ω platinum element and a 316 SS sheath. It offers Class A accuracy in a 3-wire build with an aluminum protection head. It suits vessels, tanks, and process pipes.
Configured for process and lab temperature measurement, this 1/4 x 12" (6.35 mm x 30.5 cm) RTD probe measures -58 to 842°F (-50 to 450°C) with a 100 Ω platinum element and a 316 SS sheath. It offers Class A accuracy in a 3-wire build with an aluminum protection head. It suits vessels, tanks, and process pipes.
Omega's PR-18 series probe with standard aluminum protection head and 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.
Using our probe configurator, 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.
Features
Applications
| Process temperature range | -58 to 842°F (-50 to 450°C) |
| Accuracy | Class A from -58 to 572°F (-50 to 300°C), or else Class B |
| Nominal resistance/curve | 100 Ω at 0°C standard; TCR = 0.00385 Ω/Ω/°C standard |
| Element | Pt100 platinum RTD |
| Wire configuration | 3-wire |
| Sheath material | 316 stainless steel |
| Protection head | Aluminum with flip-top |
| Process connection | 1/2" NPT |
| Termination | Screw terminal block |
| Ingress protection | IP67 |
| Response time (T90) | 5.41 sec |
| Vibration | IEC 60068-2-6; 5 to 2000 Hz sweep rate, one active per minute; 10 sweep cycles; acceleration 5g (15 probes tested together); duration: 1 day |
| Shock | IEC 60068-2-27; 50g/11ms (15 probes tested together); duration: 1 day |
| Dimensions | Diameter: 1/4" (6.35 mm) Probe length: 12" (30.5 cm) |
| Process temperature range | -58 to 842°F (-50 to 450°C) |
| Accuracy | Class A from -58 to 572°F (-50 to 300°C), or else Class B |
| Nominal resistance/curve | 100 Ω at 0°C standard; TCR = 0.00385 Ω/Ω/°C standard |
| Element | Pt100 platinum RTD |
| Wire configuration | 3-wire |
| Sheath material | 316 stainless steel |
| Protection head | Aluminum with flip-top |
| Process connection | 1/2" NPT |
| Termination | Screw terminal block |
| Ingress protection | IP67 |
| Response time (T90) | 5.41 sec |
| Vibration | IEC 60068-2-6; 5 to 2000 Hz sweep rate, one active per minute; 10 sweep cycles; acceleration 5g (15 probes tested together); duration: 1 day |
| Shock | IEC 60068-2-27; 50g/11ms (15 probes tested together); duration: 1 day |
| Dimensions | Diameter: 1/4" (6.35 mm) Probe length: 12" (30.5 cm) |