| Typical sensor performance | FC-EM4 | FC-EM7 | FC-EM10 |
| Field stability (peak-to-peak) | — | 0.5 G at 0 G and 1 kG | — |
| Control type | Closed loop PI |
| Control output resolution | 0.001% of full-scale output |
| Control output update period | 33 ms |
| Electromagnet | EM4-HVA | EM7-HV | EM10-HV |
| Click here for field plots and detailed specifications |
| Frame, gap | H frame, variable gap | H frame, variable gap | H frame, variable gap |
| Nominal coil (Ω) | 0.5 Ω | 0.25 Ω |
| Coil connection | Series | Series |
| Pole size | Customer specified |
| Air gap | Up to 102 mm (4 in),
continuously variable | Up to 178 mm (7 in),
continuously variable | Up to 160 mm (6.3 in),
continuously variable |
| Field strength | Click here for specifications | Consult Lake Shore |
| Power supply | 643 | 648 | 648 |
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| Output | Linear, bipolar |
| Current output | ±35 A per coil | ±67.5 A per coil | ±67.5 A per coil |
| Voltage | ±35 V nominal | ±75 V nominal | ±75 V nominal |
| Power output | 2450 W | 9.1 kW nominal | 9.1 kW nominal |
| AC line input | 204/208, 220/230, 380, 400/415 VAC, 3 phase
(3 wire plus ground) | 200, 208, 220, 230, 380, 400, 415 VAC,
3-phase
(3 wire plus ground) | 200, 208, 220, 230, 380, 400, 415 VAC,
3-phase
(3 wire plus ground) |
| Gaussmeter | 475 |
| Click here for detailed specifications |
| Resolution | 5 3/4 digit (1 part out of ±350,000) |
| Ranges | 8 ranges from 35 mG to 350 kG full scale |
| Basic DC accuracy | ±0.05% |
| Frequency ranges | DC, 1 Hz to 1 kHz, and 50 Hz to 20 kHz |
| Update rate | Display: 5 readings per s; IEEE-488: 30 readings per s |
| Hall probe | HMMT-6J02-VF | HMMT-6J04-VF | HMMT-6J08-VF |
| Click here for detailed specifications |
| Length | 2 in ±0.125 in | 4 in ±0.125 in | 8 in ±0.125 in |
| Size/weight (H × D × W) | | | |
| Electromagnet style="color: white;" | 81 × 53 × 84 cm
(32 × 21 × 33 in);
247 kg (545 lb) | 94 × 66 × 102 cm
(37 × 26 × 40 in);
614 kg (1350 lb) | 87 × 64 × 92 cm
(34 × 25 × 36 in);
1800 kg (3970 lb) |
| Power supply | 31 × 57 × 48 cm
(12 × 23 × 19 in);
74 kG (163 lb) | 135 × 70 × 60 cm
(53 × 28 × 24 in);
250 kG (550 lb) | 135 × 70 × 60 cm
(53 × 28 × 24 in);
354 kG (780 lb) |
| Gaussmeter/Hall probe | 9 × 32 × 22 cm (3.5 × 12.5 × 8.5 in); 3 kG (6.6 lb) |