Category Feed Subscribe to this Channel's RSS Feed

Lake Shore Cryotronics

Bid Service > Lake Shore Cryotronics

Used Lake Shore Cryotronics 7407-S VSM

Inventory Number: 64939
Now (USD): $65,000.00

Lake Shore Cryotronics 7407-S Vibrating Sample Magnetometer. Lake Shore’s fully integrated vibrating sample magnetometers (VSMs) are used to characterize the DC magnetic properties of materials as a function of magnetic field, temperature, and time. Sensitive, low-noise floor electromagnet-based VSMs that feature a broad temperature range capability—4.2 K to 1,273 K (-269 °C to 1000 °C). These systems measure a wide range of sample types, making them ideal tools for the most demanding materials research applications as well as quality control of magnetic materials. Combines high sensitivity, precision electronics, flexible software, and variable magnetic field and temperature into the most advanced electromagnet-based VSM. Includes Lake Shore 74034 High Temperature oven enables the Model 7400 series VSM system to be used to investigate the magnetic properties of materials at high temperature. This option consists of an electrically heated outer tube assembly with efficient thermal insulation to permit sample-zone temperature from 100 °C to 1000 °C (373 K to 1273 K). Temperatures from 30 °C to 1000 °C  (303 K to 1273 K) are also possible, however, below 100 °C (373 K) measurement time increases. Also includes the Janis Research 74018A Variable Temperature Cryostat designed for rapid sample cooling with either LHe or LN2 as well as easy sample insertion and interchange. It allows you to take measurements from 5.5 K to 450 K using LHe and from 85 K to 450 K using LN2. A single-point measurement can be taken at 4.2 K (LHe) and at 77.6 K (LN2). The sample is suspended in a proprietary insulated tube constructed of nonmagnetic material.

7400-S Series VSM Specs    7404-S                     7407-S                        7410-S

  7404-S 7407-S 7410-S
Magnet pole cap face diameter 50 mm (2.0 in) 50 mm (2.0 in) 50 mm (2.0 in)
APPLIED FIELD STRENGTH (±1%)
Room temperature
3.5 mm (0.14 in) sample access
 2.63 T 3.05 T 3.42 T
10 mm (0.4 in) sample access
 2.27 T 2.72 T 3.16 T
16 mm (0.64 in) sample access
 1.94 T 2.46 T 2.92 T
With oven or cryostat option
6.4 mm (0.25 in) sample access
 1.49 T 2.12 T 2.59 T
With single-stage variable temperature option
6.4 mm (0.25 in) sample access
 1.75 T 2.28 T 2.76 T
MOMENT MEASUREMENT
Noise floor (emu RMS)
Room temperature
  
0.1 TC; 0.1 s/pt
(no averaging)		 450 nemu
0.1 TC; 1 s/pt 175 nemu
0.1 TC; 10 s/pt 60 nemu
With oven or cryostat option,
0.1 TC, 10 s/pt		 2.5 µemu
With single stage variable
temperature option 0.1 TC, 10 s/pt		 1.25 µemu
With vector option 0.1 TC, 10 s/pt 5 µemu
Dynamic range 1 × 10-7 to 103 emu
Time constants (TC) 0.1, 0.3, 1.0, 3.0, or 10.0 s
Moment stability1 Less than 0.05% RMS of full scale/day at constant field, constant temperature, and highest range after a 5 h warm-up period
Reproducibility Better than ±0.5%, or ±0.1% of full scale, fixed rotation angle and range, with sample replacement
Moment accuracy Better than 1% of reading ±0.2% of full scale with a geometrically identical test sample and calibrant
Sample mass 0 to 10 g (higher mass can be accommodated with decreased performance)
FIELD MEASUREMENT
Field accuracy 1% of reading or ±0.05% of full scale
Field resolution
2800 kA/m (35 kOe)
8 A/m (0.1 Oe)
280 kA/m (3.5 kOe) 0.8 A/m (0.01 Oe)
28 kA/m (350 Oe) 0.08 A/m (0.001 Oe)
Closed loop field control stability <0.05% RMS of full scale/h
MANUAL ROTATION
Setting resolution <1°
Setting reproducibility <1°
Rotation range 0 to 730°

Product Details