|
7404 |
7407 |
7410 |
| System Specifications Room Temperature with a 16.2mm (0.64") magnet air gap, <3.5mm (0.14") sample access, and 740EMSC Pick-up Coils |
| Noise Floor |
|
| 0.1 s TC; 10 s/pt |
0.1 µemu |
| 0.1 s TC; 1 s/pt |
0.4 µemu |
| 0.1 s TC; 0.1 s/pt |
0.75 µemu |
| Dynamic Range |
1x10-7 to 103 emu |
| Time Constants (TC) |
0.1, 0.3, 1.0, 3.0, or 10.0 seconds |
| Output stability* |
Better than ±0.05% RMS of full scale per day for fixed coil geometry at constant field and temperature |
| Absolute Accuracy |
Better than 1% of reading ±0.2% of full scale
(when test sample and calibrant are geometrically identical) |
| Reproducibility |
Better than ±1%, or ±0.15% of full scale, whichever is greater, fixed rotation angle |
| Field accuracy (Gauss) |
1% of reading or ±0.05% of full scale |
| *Tested with an AlNiCo sample in a linch sensing coil gap after a 5 hour system warm-up period with the sample vibrating at field. The AlNiCo samples moment must be > 50% of full scale moment range. |
| |
7404 |
7407 |
7410 |
Room Temperature Magnetic Field Specifications |
| |
51 mm(2")1
Pole Face |
76 mm(3")1
Pole Face |
152 mm(6")2
Pole Face |
50 mm(1.96")1
Pole Face |
150 mm(5.9")2
Pole Face |
| 16.2 mm(0.64") Magnet air gap |
21.7 kOe*
|
23 kOe |
— |
31 kOe |
— |
| 23 mm(0.9") Magnet air gap |
18.1 kOe
|
21 kOe |
— |
28.5 kOe |
— |
| 29 mm(1.14") Magnet air gap |
15.3 kOe
|
18 kOe |
14 kOe |
25 kOe |
23 kOe |
| 38.1 mm(1.5") Magnet air gap |
11.8 kOe*
|
15 kOe |
12 kOe |
23 kOe |
21.9 kOe |
| 51 mm(2.0") Magnet air gap |
—
|
— |
10.5 kOe |
— |
19.2 kOe |
| *Magnetic field specification may deviate ±1% |
Variable Temperature Magnetic Field Specifications |
|
51 mm(2")1
Pole Face |
76 mm(3")1
Pole Face |
152 mm(6")2
Pole Face |
50 mm(1.96")1
Pole Face |
150 mm(5.9")2
Pole Face |
| 38.1 mm(1.5") Magnet air gap |
11.8 kOe |
15 kOe |
— |
23 kOe |
— |
| 51 mm(2.0") Magnet air gap |
— |
— |
10.5 kOe |
— |
19.2 kOe |
| Field Resolution (Oe) |
| 35 kOe |
0.1 |
| 3.5 kOe |
0.01 |
| 350 Oe |
0.001 |
Options |
Vector Coils (Torque)
|
|
• |
• |
Autorotation
|
• |
• |
• |
|
| |
Cryostat, used with |
LHe |
LN2 |
|
Oven |
|
| Temp range |
4.2 K, 5.5 K
to 450 K |
77.6 K, 85 K
to 450 K |
305 K to 1273 K |
|
| Resolution (K) |
Below 100 K
|
0.0001 |
N/A |
|
Above 100 K
|
0.001 |
0.001 |
|
| 1 with 740EMSC coils; 2 with 730ESC coils |
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