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General Attributes:

Lakeshore Model 480 fluxmeter very good price

The Model 480 fluxmeter is a high-performance instrument designed for use in industrial and measurement system environments. It measures total magnetic flux, which can then be used to calculate flux density (B) and magnetic field strength (H). This device is ideal for a variety of applications, including magnetizing processes, manual and automated magnet testing and sorting, and serving as the core component in BH loop or hysteresis measurement systems. The Model 480 is also compatible with most sensing coils and fixtures, making it a versatile tool for magnetic measurement tasks.

• 5¾ digit DC resolution (1 part out of ±300,000)
• Automatic drift compensation
• Very fast peak capture
• AC frequency response to 50 kHz
• IEEE-488 and serial interfaces
• Storage of parameters for up to 10 existing coils

480 fluxmeter specifications

Measurement

Number of units: 1

Input type: 2-lead, ground-referenced

Input resistance: 100 kΩ or 10 kΩ

Maximum operating input voltage: 60 V

Absolute maximum input voltage: 100 V — WARNING — voltages between 60 V and 100 V will not damage the instrument but could result in personal injury or damage to other instruments

Update rate: 5 rdg/s display; 30 rdg/s IEEE-488; 30 rdg/s serial

DC

DC resolution: To 5¾ digits

DC integrator capacitance: 1 µF nominal

DC input resistance: 100 kΩ 10 kΩ

DC ranges: 300 mVs, 30 mVs, 30 mVs, 3 mVs

DC resolution: 0.001 mVs, 0.0005 mVs, 0.0005 mVs, 0.0005 mVs

DC accuracy: Offset: ±10 µVs ±DC integrator drift; Gain: ±0.25% of reading (<10 Vs/s maximum rate of change)

DC minimum dΦ/dt: 20 µVs/min

DC maximum dΦ/dt: 60 Vs/s

DC integrator drift: ±1 µVs/min, 0.0004% FS/min on 300 mVs range (100 kΩ input resistance constant temperature environment)

DC peak

DC peak resolution: 4¾ digits

DC peak integrator capacitance: 1 µF nominal

DC peak input resistance: 100 kΩ 10 kΩ

DC peak ranges: 300 mVs, 30 mVs, 30 mVs, 3 mVs

DC peak resolution: 0.01 mVs, 0.001 mVs, 0.001 mVs, 0.001 mVs

DC peak minimum reading: 0.05 mVs, 0.005 mVs, 0.005 mVs, 0.005 mVs

DC peak accuracy: Offset: ±100 µVs ±DC integrator drift; Gain: ±5% of reading (<10 Vs/s maximum rate of change)

DC peak maximum dF/dt: 60 Vs/s

DC peak update rate: Reduces update rate to ¼ normal

AC

AC resolution: 4¾ digits (reduced to 3¾ digits on the 30 µVs range)

AC integrator capacitance: 0.1 µF nominal

AC input resistance: 100 kΩ

AC ranges: 30 mVs, 3 mVs, 300 µVs, 30 µVs

AC resolution: 0.001 mVs, 0.0001 mVs, 0.01 µVs, 0.01 µVs

AC minimum rdg: 3.000 mVs, 0.3000 mVs, 30.00 µVs, 3.00 µVs

AC frequency response: 2 Hz to 50 kHz

AC accuracy: ±1% rdg ±10 µVs (10 Hz to 10 kHz sinusoidal); ±5% rdg ±10 µVs (2 Hz to 50 kHz sinusoidal)

AC integrator drift: NA

AC peak

AC peak resolution: 3¾ digits

AC peak integrator capacitance: 0.1 µF nominal

AC input resistance: 100 kΩ

AC peak ranges: 30 mVs, 3 mVs, 300 µVs

AC peak resolution: 0.01 mVs, 0.001 mVs, 1 µVs

AC minimum reading: 0.01 mVs, 0.001 mVs, 5 µVs

AC peak accuracy: ±5% rdg ±10 µVs (10 Hz to 10 kHz sinusoidal); ±10% rdg ±10 µVs (2 Hz to 50 kHz sinusoidal)

AC peak update rate: Reduces update rate to ¼ normal 

Front panel

Display type: 2-line × 20-character, vacuum fluorescent display

Display resolution: To ±5¾ digits

Display update rate: 5 rdg/s

Display units: Vs, MxN, WbN, VF, MxF, WbF, G, T, Wbcm, A, %

Units multipliers: p, n, µ, m, k, M, G

Annunciators: AC – AC input signal, DC – DC input signal, ∧ ∨ – Positive and negative peaks, R – Remote operation, :Alarm on

Keypad: 21 full travel keys

Interfaces

IEEE-488.2 capabilities: SH1, AH1, T5, L4, SR1, RL1, PP0, DC1, DT0, C0, E1

Serial interface: RS-232C electrical, DA-9 connector, 9600 BAUD

External reset type: Contact closure

Software support: LabVIEW™ driver

Alarms

Number: 2

Settings: High and low set point, Inside/Outside, Audible

Actuators: Display annunciator, beeper, relays

Relays

Number: 3

Contacts: Normally open (NO), normally closed (NC), and common (C)

Contact rating: 30 VDC at 2 A

Operation: Follow high, low alarms with third relay indicating no alarm state — can be operated manually

Connector: Detachable terminal block

Monitor analog output

Scale: ±3 V = ±FS on Vs range

Accuracy: ±1% of reading ±10 mV, (DC to 10 kHz); ±5% of reading ±10 mv, (10 kHz to 50 kHz)

Minimum load resistance: 1 kΩ

Connector: Detachable terminal block

Corrected analog output

Scale: User selected

Range: ±10 V

Resolution: 0.3 mV

Accuracy: ±2.5 mV

Minimum load resistance: 1 kΩ

Connector: Detachable terminal block/p>

General

Ambient temperature: 15 ºC to 35 ºC at rated accuracy; 5 ºC to 40 ºC with reduced accuracy

Power requirement: 100, 120, 220, 240 VAC, +5%, -10%, 50 or 60 Hz, 20 VA

Size: 216 mm W × 89 mm H × 318 mm D (8.5 in × 3.5 in × 12.5 in), half rack

Weight: 3 kg (6.6 lb)

Approval: CE mark, RoHS