8600 Series VSM Specifications

APPLIED FIELD STRENGTH WITH HIGH FIELD POLE CAPS (±1%)
Gap indices 4 and 6 support non-VSM applicationsSample spaceSample size with option8604 maximum field
—all modes

Maximum ramp rate
10 kOe/s (1 T/s)
8607 maximum field
—high field mode

Maximum ramp rate
dependent on ExactGAP setting*
8607 maximum field
—high speed mode

Maximum ramp rate
10 kOe/s (1 T/s)
ExactGAP™ Index 13.5 mm (0.14 in)N/A27.6 kOe (2.76 T)32.6 kOe (3.26 T)24.0 kOe (2.4 T)
ExactGAP™ Index 28 mm (0.31 in)N/A25.2 kOe (2.52 T)30.1 kOe (3.01 T)21.0 kOe (2.1 T)
ExactGAP™ Index 316 mm (0.63 in)6.4 mm (0.25 in)
with SSVT
20.3 kOe (2.03 T)26.2 kOe (2.62 T)19.0 kOe (1.9 T)
ExactGAP™ Index 524 mm (0.94 in)6.4 mm (0.25 in)
with oven or cryostat
15.5 kOe (1.55 T)23.1 kOe (2.31 T)15.0 kOe (1.5 T)
*ExactGap 1 or 2 maximum ramp rate = 5 kOe/s (0.5 T/s); ExactGap 3 maximum ramp rate = 4 kOe/s (0.4 T/s); ExactGap 5 maximum ramp rate = 3 kOe/s (0.3 T/s)


APPLIED FIELD STRENGTH WITH STANDARD POLE CAPS (±1%)
Gap indices 4 and 6 support non-VSM applicationsSample spaceSample size with option8604 maximum field
—all modes

Maximum ramp rate
10 kOe/s (1 T/s)
8607 maximum field
—high field mode

Maximum ramp rate
dependent on ExactGAP setting*
8607 maximum field
—high speed mode

Maximum ramp rate
10 kOe/s (1 T/s)
ExactGAP™ Index 13.5 mm (0.14 in)N/A26.5 kOe (2.65 T)31.3 kOe (3.13 T)23.0 kOe (2.30 T)
ExactGAP™ Index 28 mm (0.31 in)N/A24.1 kOe (2.41 T)29.1 kOe (2.91 T)20.3 kOe (2.03 T)
ExactGAP™ Index 316 mm (0.63 in)6.4 mm (0.25 in)
with SSVT
19.6 kOe (1.96 T)25.5 kOe (2.55 T)18.5 kOe (1.85 T)
ExactGAP™ Index 524 mm (0.94 in)6.4 mm (0.25 in)
with oven or cryostat
15.4 kOe (1.54 T)22.3 kOe (2.23 T)14.5 kOe (1.45 T)
*ExactGap 1 or 2 maximum ramp rate = 5 kOe/s (0.5 T/s); ExactGap 3 maximum ramp rate = 4 kOe/s (0.4 T/s); ExactGap 5 maximum ramp rate = 3 kOe/s (0.3 T/s)


MOMENT MEASUREMENT
Noise floor (emu RMS)
Room temperature
0.1 s/pt
150 nemu
1 s/pt60 nemu
10 s/pt15 nemu
With oven or cryostat option, 10 s/pt300 nemu
With SSVT option 10 s/pt90 nemu
With vector coil optionx coils: 90 nemu at ExactGAP 3; y coils: 200 nemu at ExactGAP 3
Dynamic range25 × 10-9 to 103 emu
Moment stabilityBetter than ±0.05% of full scale/day for fixed coil geometry at constant field and temperature
ReproducibilityBetter than ±0.5% of reading, or ±0.1% of full scale, fixed rotation angle and range, with sample replacement
Moment accuracyBetter than 1% of reading ±0.2% of full scale with a geometrically identical test sample and calibrant
Sample mass0 to 10 g
FIELD MEASUREMENT
Field accuracy1% of reading or ±0.05% of full scale
Field resolution1 mOe
Field ramp rate8604: 10,000 Oe/s
8607: 10,000 Oe/s (in high-speed mode; reduced when in high field mode)
Closed loop field control stability1 mOe
SAMPLE ROTATION
Setting resolution0.1°
Setting reproducibility<1°
Rotation rangeContinuous
CERTIFICATIONS
CEYes
Application of Council directives2014/35/EU Low Voltage Directive
2014/30/EU EMC Directive
2011/65/EU RoHS Directive
Standard to which conformity is declaredEN61010-1: 2010 Overvoltage Category II, Pollution Degree 2;
EN61326-1: 2013 Class A, Controlled EM Environment;
EN55011: 2009 Class A, Controlled EM Environment
EN50581: 2012
UTILITIES
Total system cooling water power dissipation (50 or 60 Hz) — see available recirculating chillers8604: 4250 W
8607: 13400 kW

Note: chiller power specifications listed are for 100% duty cycle. Many common magnet testing applications such as hysteresis loops will not require as much cooling power. Please consult Lake Shore for chiller recommendations for your specific applications.

8600 Series VSM equipment

 86048607
VSM head driveGen2
VSM frameV-mag
Control electronicsModel 737
Bipolar magnet power supplyModel 643Model 648
Maximum output±35 V/±70 A (2,450 W)±75 V/±135 A (9.1 kW nominal)
AC line input200/208 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 ±5%, 41 A/phase;
208 VAC ±5%, 40 A/phase;
220 VAC ±5%, 38 A/phase;
230 VAC ±5%, 37 A/phase;
380 VAC ±5%, 23 A/phase;
400 VAC ±5%, 21 A/phase;
415 VAC ±5%, 21 A/phase

Cooling water requirementsTap water or closed cooling system
(optional chiller available) +15 °C to +30 °C
Flow rate5.7 L (1.5 gal)/min minimum7.6 L (2.0 gal)/min minimum
Pressure drop10 kPa (1.5 psi) at 5.7 L (1.5 gal)/min
minimum for power supply only
159 kPa (23 psi) at 7.6 L (2 gal)/min
minimum for power supply and mandatory flow switch
ElectromagnetModel EM-4VModel EM-7V
Pole diameter100 mm (4 in)180 mm (7 in)
Pole cap face diameter 50 mm (2 in)50 mm (2 in)
Field homogeneity ±0.1% over 1 cm3 (0.4 in3)±0.1% over 1 cm3 (0.4 in3)
Cooling water requirements Tap water or closed cooling system
(optional chiller available)
Inlet temperature 15 to 25 °C (59 to 77 °F)15 to 32 °C (59 to 89 °F)
Flow rate 7.6 L (2 gal)/min11.4 L (3 gal)/min
Pressure drop 200 kPa (30 psi)220 kPa (32 psi)
Water chiller capacity2.5 kW (8,530 BTU)/h5 kW (17,060 BTU)/h
Hall probe 86-0911
Sense coilsModel 86-SC and Model 86-LC
Instrument console483 mm (19 in) rack

8600 Series VSM option specifications

Model 86-CRYO variable temperature cryostat
With LHeTemp range4.2 K (base), 5.5 K to 450 K (control)
Temp stability±0.1 K
With LN2Temp range77.6 K (base), 85 K to 450 K (control)
Temp stability±0.2 K
Temperature resolution0.001 K
Cool-down time5 min (15 min initial cool-down)
Operation methodContinuous flow
LHe liquid usage<1 L/h when operating >7 K
LN2 liquid usage<1 L/h when operating >85 K
InsulationVacuum
Sample zone dimensions Bore size7.1 mm (0.28 in)
Outside diameter22.4 mm (0.88 in)

More information about VSM options

 

Model 86-OVEN high temperature oven
Temperature range308 K to 1273 K
Temperature stability±0.1 K
Temperature resolution0.001 K
Nominal ramp rate5 K/min
InsulationVacuum plus multiple reflective shields
Sample zone dimensions Bore size7.3 mm (0.29 in)
Outside diameter19 mm (0.75 in)

More information about VSM options

 

Model 86-SSVT single stage variable temperature option
Temperature range78 K (base), 100 K to 950 K (control)
Temperature stability0.1 K RMS
Temperature resolution0.001 K
GassesLN2 and nitrogen gas for T<350 K;
argon for T>350 K
Cool-down time40 min from room temp to 100 K
Nominal ramp rate
(in the domain)
Up to 8 K/min
Operating methodContinuous flow
LN2 liquid usage0.5 L/h >100 K to 350 K
Nitrogen gas usage~3 L/min 100 K to 350 K
Argon gas usage~3 L/min
InsulationVacuum
Sample zone dimensions Bore size7.8 mm (0.31 in)
Outside diameter12.7 mm (0.5 in)

More information about VSM options



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