Previously known as the Series 44 temperature probe, the Series 54 cryogenic temperature probes utilize either a 200Ω or 1000Ω platinum resistance thermometer (PRT), or a silicon diode (SD) thermometer and are constructed of stainless steel. The 44B design is designed for operation from -40°C to +200°C and the 44C from -196°C to +125°C.
The probes are designed to withstand the extreme conditions (mechanical, thermal, and electrical) expected of their process environments. They are hermetically sealed with the sensing element embedded within a thermal epoxy at the stem’s tip. These probes are recommended for direct immersion with your application service media and can withstand extreme pressure environments. Please see below for detailed specifications.
Additional information
| Enclosure | All wetted areas are 316 SS. |
|---|---|
| Insertion Length | 2” to 30” customer specified. |
| Media Connection | MS-33656-E4 Boss seal capable of withstanding 2000 PSI media pressure. |
| Temperature Range | Series 44B – -40°C to +290°C |
| Excitation | 1.0 mA DC, four leaded. 10μA for diodes. |
| Ice Point Resistance | Series 44B – 200 +/- 1.0 Ohms |
| Ice Point Output | Series 44D – 0.6180 V +/- .0128 V |
| Sensor Coefficient | .003890 Ω/Ω/°C determined from calibration data taken at 0°C and 100°C. |
| (200 ohm) for use with 39C *SCM. | 44B-XXX-40°C to +290°C – Ending letter (X) defined by probe insertion length available from 2” to 30” customer specified. |
| (1000 ohm PRT) for use with 39C *SCM. | 44C-XXX-260°C to +125°C – Ending letter (X) defined by probe insertion length available from 2” to 30” customer specified. |
| (Silicon Diode) for use with 39D *SCM. | 44D-XXX-255°C to +125°C – Ending letter (X) defined by probe insertion length available from 2” to 30” customer specified. |
| Probe Type | Series 44C Aerospace Probe, 9.5 Inch Insertion Length, Series 44C Aerospace Probe, 6.1 Inch Insertion Length, Series 44C Aerospace Probe (OMEGA), 2.5 Inch Insertion Length, Series 44C Aerospace Probe (OMEGA), 4.5 Inch Insertion Length, Series 44D Aerospace Probe, 5.5 Inch Insertion Length (+/- 0.5K @ 4.2K, +/- 0.1K @ 77.4K, +/- 1K @ 273.15K), Series 46D Aerospace Probe (OMEGA), 2.5 Inch Insertion Length, Series 46DX (100uA) Aerospace Probe, 1/8” OD, 12 Inch Insertion Length (+/- 1K from 20K to 77K), Series 46DX1 (100uA) Aerospace Probe, 2.2 Inch Insertion Length, Extended Pressure (5000 psi MEOP, Proof = 1.2X = 6000 psi, Burst = 2X = 10000 psi) |
