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Palmer Wahl 221_Probe | RTD Probe, Tapered Bulb & Swivel Nut | 7/16 in Bulb, 400°F
Palmer Wahl's 221 RTD probe has a 5/8 in stem ending in a 7/16 in tapered bulb, shaped to fit thermowells designed for mercury-in-glass thermometers, as commonly found in food processing. It connects with a 1.25-18 swivel nut and uses a 100 Ω platinum RTD rated to 400°F. Stems come in 3.5, 6, 9 and 12 in lengths.
Key features
- 7/16 in tapered bulb on a 5/8 in stem
- Fits thermowells made for mercury-in-glass thermometers
- 1.25-18 swivel nut connection
- Choice of 3.5, 6, 9 or 12 in stems
- 400°F limit with a 100 Ω platinum element
It is supplied for use with TM612/TM630 meters (M8x1 4-pin connector) or TM612A/TM630A meters (Lemo 4-pin connector).
- Specifications
| Part Number | 221_Probe |
| Brand | Palmer Wahl |
| Style | Screw-in, tapered bulb |
| Stem | 5/8 in |
| Bulb | 7/16 in tapered |
| Fitting | 1.25-18 swivel nut |
| Stem Lengths | 3.5, 6, 9, 12 in |
| Sensor | 100 Ω platinum RTD |
| Temperature Limit | 400°F |
| Connector Options | TM, TMA |
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