MF-10D

Microprocessor-Controlled Integrating Fluxmeter
  > Functionally and Technically the Best Fluxmeter in its Class

The MF-10D Integrating Fluxmeter is a precision electronic instrument designed to measure the magnetic flux coupling within a coil or loop of wire. Average flux density through the area of a coil, or the total flux within a coil can be measured and displayed. The large keypad makes it easy to select functions and setup parameters. The instrument can store up to 10 sets of coil parameters to simplify instrument set up.

  Download a printable Product Sheet for the MF-10D.

The MF-10D Fluxmeter uses the latest in integrator amplifier designs to accurately integrate volt-second signals from flux measurement coils. Walker LDJ Scientifics exclusive LocLogic Auto Null feature automatically removes uncompensated thermocouple voltages to minimize integrator drift without compromising measurement sensitivity. Measurement range and scale sensitivity are easily selected via easy to read display menus.

The broad range of features and fast response makes this fluxmeter suitable for DC and AC Hysteresis loop tracing. In the DC mode the MF-10D Fluxmeter provides accurate measurement of static and slowly changing fields. AC measurements are represented in true RMS from 5 Hz to 100 kHz.

The bright, easy to read, vacuum fluorescent display has four lines of 20  alphanumeric characters, and is readable from any viewing angle. User control and selection of the displayed data, measurement type and system status makes this instrument easy to use and set up. Corrected and uncorrected analog outputs, plus USB, IEEE-488.2, and RS-232 interfaces, allow flexibility in interfacing to other equipment.

Features
  • 16 Key Sealed Membrane Keypad Superior Stability
  • LocLogic Auto Null
  • Microprocessor Controlled
  • Display Resolution to 5 digits
  • Storage of 10 sets of Measurement Coil Parameters
  • USB, RS-232 and IEEE-488 Interfaces
  • Can be remotely operated by PC
  • Corrected and Uncorrected Analog Outputs
  • Peak Hold
  • Hi, Lo, Inside/Outside Threshold Alarms
  • Bright 4-Line Vacuum Fluorescent Display

Applications
  • AC and DC Magnetic Field Measurements
  • Magnetic Circuit Analysis - Relays, Electromagnets, Motors, Generators, Loudspeakers, Linear Actuators
  • Measure Residual Fields
  • Measure Stray Magnetic Fields
  • Measure Absolute and Differential Magnetic Fields
  • Plot Field Uniformity or Field Gradients
  • AC Flux Measurements of Closed Cores
  • DC Flux Measurement for B-H Characterization of soft and hard materials

Specifications

General

Inputs

1, Two Lead, Binding Post

Maximum Input Voltage

100 V

Keypad

16-Key, Tactile Touch,
Sealed Membrane

Display

4 Line x 20 Character,
Vacuum Fluorescent

Display Update Rate

3 Hz

Display
Units

Gauss
Tesla
kiloMaxwells
kiloMaxwell/Turns
Webers
Weber/Turns

Display

Meaurement Mode (AC/DC)
Display Type (NORM, PEAK, RMS)
Alarm Status
Communications Mode

Measurements

Ranges

3, 30, 300 kGauss
0.3, 3, 30 Tesla
3, 30, 300 kiloMaxwells
30, 300, 3000 Webers

Measurement
Resolution

0.1 Gauss
0.00001 Tesla
0.1 Maxwells
.001 Webers

Display Resolution

4 Standard (Up to 5 digits for DC Normal measurements only)

Accuracy

0.1% of range DC, 1% of range AC RMS, 2% of range Peak
(up to 1kHz) (does not include error due to integrator drift)

Integrator
Drift

100 Maxwell Turns/minute
(After warm-up, Drift Null and thermal stabilization in stable environment)

Frequency Response

DC to 100 kHz (DC Mode)
5 Hz to 100 kHz (AC RMS)
DC to 1 kHz (Peak response)

Interfaces

   IEEE-488.2
  USB 2.0
  RS-232C
  Remote Integrator Reset
  Threshold Limit Relays

Analog Outputs

Analog Outputs
  Connector Type: BNC

  Minimum Load:    50 Ohms

  Uncorrected Analog
     Scale:      3 V = Full Scale of selected range
     Accuracy: 0.25% of Scaled input range

  Corrected Analog
     Range:      0 to 3 V
     Accuracy: 0.5% of range

Physical
  Power Requirements: 100-120 VAC 50/60 Hz or 220-240 VAC 50/60 Hz

  Size:  12.3" L x 10.1" W x 4.0" H
           (312.4 mm L x 256.5 mm W x 101.6 mm H)

  Weight: Net 9.5 lbs (4.31 kg)
             Shipping 15 lbs (6.8 kg)

Operating Limits

The MF-10D Fluxmeter will remain within its linear operating range for input pulses having rise or fall times greater than 10 microseconds and crest currents less than 5 milliamps. To avoid damage to the input resistors, the input voltage should not exceed a crest value of 100 volts and the input current should not exceed 10 milliamps RMS.

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