Agilent Technologies 400/54 Premium Shielded NMR Magnet System - Helium Probe Calibration Chart - 400;54 Premium Shielded

Reference 4
400/54 Premium Shielded NMR Magnet System Product Overview 57
Helium Probe Calibration Chart — 400/54 Premium Shielded
Table 5 Helium probe calibration chart — 400/54 premium shielded
Probe reading Helium level in cryostat
(%) (mm) (mm) (liters
remaining)
100 455 537 123.8
100 455 532 122.4
95 433 515 117.7
90 412 494 111.6
85 390 472 105.5
80 368 450 100.3
77 353 435 96.1 Min level for energizing/shimming
75 346 428 94.2
70 325 407 88.1
65 303 385 83.3
60 281 363 78.4
55 259 341 73.6
50 238 320 68.7
45 216 298 63.9
40 194 276 59.0
35 172 254 54.2
30 151 233 49.4
25 129 211 44.5
20 107 189 39.7
10 64 146 30.0
5 42 124 25.1
0 20 102 20.3 Min Refill Level
-20 16 98 19.4
-40 12 94 18.5
-60 8 90 17.6
-80 4 86 16.7
-100 0 82 15.8
-100 0 0 0.0