| | 7604 | 7607 | 7610 |
| Magnetic field | Please consult
Lake Shore for
10 in magnet option information |
| Room temp | ±1.3 T | ±2 T |
| Variable temp | ±0.87 T | ±1.2 T |
| Temperature |
| Standard | 77 K or room temperature |
| CCR | 15 K to 350 K |
| Oven | 350 K to 800 K |
| Carrier concentration density | 1 × 106 to 1 × 1019 cm-3 |
| Mobility | 1 to 1 × 105 cm2/V s |
| Current (A) | ±10 nA to ±1 A |
| Voltage (V) | 0 V to 200 V |
| Resistance range (standard) | 2% accuracy—VdP minimum: 40 mΩ, HB minimum: 10 mΩ, maximum: 10 MΩ |
| System equipment |
| Sample holder module | 75011 room temperature/77 K; 2-sided sample cards |
| Sample holder kit (included with sample holder module) | (50) 671-209s, (10) 671-202s, (1) 671-205, (1) 671-260, (1) 671-250, and (10) 1-inch sheets of indium foil |
| Sample size | Up to 10 × 14 mm (0.4 × 0.6 in)on a 25 × 75 mm (1 × 3 in) card; up to 60 mm (2.4 in) square on an 82 × 93 mm (3.2 × 3.7 in) card | Up to 76 mm (3 in) in diameter |
| Number of samples | Up to 4 (2 standard) |
| Model 475 gaussmeter | 1 |
| Keithley equipment |
| 2400 SourceMeter | 1 |
| 2700 Multimeter | 1 |
| 7709 6 × 8 Matrix Card | 1 (2 included with 4-sample configuration) |
| Magnet | EM4-HVA | EM7-HV |
| Pole diameter | 102 mm (4 in) | 178 mm (7 in) |
| Pole face diameter | 102 mm (4 in) | 152 mm (6 in) | 76.2 mm (3 in) |
| Max magnetic field at room temperature | 1.3 T (13 kG)at 25 mm (1 in)air gap | 1.6 T (16 kG)at 25 mm (1 in)air gap | 2.17 T (21.7 kG)at 25 mm (1 in)air gap |
| Max magnetic field at variable temperature | 0.87 T (8.7 kG)at 51 mm (2 in)air gap | 1.18 T (11.8 kG)at 51 mm (2 in)air gap | 1.47 T (14.7 kG)at 51 mm (2 in)air gap |
| Field homogeneity | ±0.1% over 10 mm3 (0.4 in3) | ±0.1% over centered 51 mm (2 in) diameter circle |
| Cooling water requirements | Tap water or closed-cycle cooling system (optional chiller available) |
| Inlet temperature | 25 °C (77 °F) maximum | 32 °C (90 °F) maximum |
| Pressure drop | 200 kPa (30 psi) | 220 kPa (32 psi) |
| Flow rate | 7.6 L (2 gal)/min | 11.4 L (3 gal)/min |
| Water chiller cooling capacity | 2.5 kW (8,530 BTU)/h | 5 kW (17,060 BTU)/h |
| Bipolar magnet power supply | 643 | 648 |
| Mode | DC |
| Maximum output | ±35 V ±70 A (2450 W) | ±70 V ±135 A (9.1 kW nominal) |
| AC line input | 204/208 VAC ±10%, 13 A/phase;220/230 VAC ±10%, 12 A/phase;380 VAC ±10%, 7 A/phase;400/415 VAC ±10%, 6.5 A/phase at 50/60 Hz | 200 VAC ±10%, 41 A/phase;
208 VAC ±10%, 40 A/phase;
220 VAC ±10%, 38 A/phase;
230 VAC ±10%, 37 A/phase;
380 VAC ±10%, 23 A/phase;
400 VAC ±10%, 21 A/phase;
415 VAC
±10%, 21 A/phase |
| Flow rate | 5.7 L (1.5 gal)/min minimum | 7.6 L (2 gal)/min |
| Cooling water requirements | Tap water or closed cooling system (optional chiller available) +15 °C to +30 °C | Tap water or closed cooling system (optional chiller available) +15 °C to +30 °C |
| Computer | Dell® computer with HDD, CD-ROM, 19-inch SVGA flat screen monitor, Windows® OS, Hall software, and National Instruments IEEE-488 USB adapter |