Verimation Verimet (K.J. Law) M4900C

Verimation Verimet (K.J. Law) M4900C

Eddy Current Conductivity Meter - Most Rugged Probe in Industry - Ideal for Shop Environment

Unmatched Quality

The Verimation (K.J. Law) M4900C is known for its accuracy, simplicity, ruggedness and reliability. With no complicated bells and whistles, the M4900C simply measures eddy current conductivity. Well suited for shop and field use, this unit is known as the most rugged and reliable probe in the industry and is easily used by shop and warehouse personnel.

Short term rental and rental/purchase agreements are available.

 

  

Features

  • Provides rapid conductivity testing for alloy content, heat treatment, material mixes, hardness and tensile strength.
  • Unique, patented design offers quick, accurate, non-destructive testing for aluminum, copper, bronze and other non-ferrous metals.
  • For metal ingots, forgings, castings, sheet stock and processed parts, including lithium / aluminum alloys.
  • Single COMP knob adjustment for temperature compensation
  • Digital readout in percentage I.A.C.S or MegaSiemens
  • Linear response exceeds military and aircraft industry standards.

Benefits

  • Excellent lift-off range for rapid, non-contrast testing
  • Adjustable temperature compensation circuitry with single knob adjustment for temperature variations
  • Linear response over the full instrument range
  • Linear response vs. curve of other instruments
  • Portable, using 12 hour rechargeable batteries with AC Adapter / Charger provided
  • Reliable performance with no need for periodic balance, null adjustment or sensitivity setting changes for difficult test conditions.

Typical Applications

The major application for the M4900C is measuring the conductivity of aluminum alloys. It automatically tracks the temperature coefficient. The M4900C works well on rough or finished surfaces including forging, castings, sheet stock, and small parts with reasonable mass. Production line conductivity instruments and systems are available for rapid automatic sorting or process control requirements. Applications include:

  • Sorting mixed non-ferrous metals and alloys
  • Evaluating material alloy, hardness and uniformity of heat treat
  • Measuring absolute conductivity
  • Detecting heat damage to aircraft surfaces and structures
  • Checking Aluminum alloy for aging
  • Testing for proper aluminum

Technical Specifications

Verimation M4900C Specifications

Size 6.75 x 3.75 X 2.75" (17.2 x 9.5 x 7.0 cm)
Weight 2.5 lbs. (1.13 kg)
Penetration Depth 0.050" (1.27 mm)
Range (I.A.C.S.) 12% to 110%
Lift-Off 0.025 inch (0.6 mm) max
Accuracy

+- 0.3% (17% to 62% IACS Aluminum)

+/-0.5% (Full Range 10% to 110%)
Resolution 0.1%
Power Supply

Rechargeable Nickel Cadmium Batteries w/AC adapter/Battery Charger

115/60 Hz or 220/50 Hz
Probes 4900M216C probe, 7/16" (11.1mm) with 42" (107cm) cable
Readout 4 Digit LED Numeric Display
M4900C Through Coating Measuring Capability

Actual Thickness IACS Result
0 60.1
0.004" 60.1
0.008" 60.1
0.012" 60.1
0.016" 60.1
0.020" 60.0
0.024" 59.8
0.028" 59.7
0.032" 59.5
0.036" 59.00

Kit Includes

M4900C Kit Includes

  • Probe and 42" Cable Assembly
  • Carrying Case
  • Charger 110 or 220 VAC (specify)
  • Manufacturer Calibration Certificate

Replacement Charger Retrofit

Please Note: The M4900C has been through several revisions to the charger connection point in 25 years as the connectors became commercially unavailable.  It is important to make sure that the connection point on the instrument is a round 8-pin style connector.  Should the connection point on the instrument differ, then a retrofit of the instrument at Verimation is necessary. To purchase the retrofit option, select the applicable retrofit SKU in checkout below and we will provide further instructions upon processing of your order.

*Listed prices only valid for customers in North America

Product Literature

Description Part # Saved Price Select Option Add to
Verimation M4900C Eddy Current Conductivity Meter, Includes Battery, Charger, Probe, Cable & Case, 110V CM-LW-M4900C-110V
$4,550.00
Verimation M4900C Eddy Current Conductivity Meter, Includes Battery, Charger, Probe, Cable & Case, 220V CM-LW-M4900C-220V
$5,051.00
Weekly Rental Verimation M4900C Eddy Current Conductivity Meter CM-LW-M4900C-RTL
$500.00
Probe and 42" Cable Assembly with Probe Holder for Verimation M4900C Eddy Current Conductivity Meter CM-LW-M4900C-PRB
$1,090.00
Charger - 2700 (110 VAC) for Verimation M4900C Eddy Current Conductivity Meter CM-LW-2700-110
$205.00
Charger - 2700 (230 VAC) for Verimation M4900C Eddy Current Conductivity Meter CM-LW-2700-230
$294.00
Retrofit for Verimation M4900C to Current Style Charger, 115V (retrofit includes new charger) CM-LW-M4900C-FIT-115
$550.00
Retrofit for Verimation M4900C to Current Style Charger, 230V (retrofit includes new charger) CM-LW-M4900C-FIT-230
$561.00
23% Brass Conductivity Standard for Verimation M4900C Eddy Current Conductivity Meter CM-LW-CSTD-23
$325.00
30% Aluminum Conductivity Standard for Verimation M4900C Eddy Current Conductivity Meter CM-LW-CSTD-30
$325.00
48% Aluminum Conductivity Standard for Verimation M4900C Eddy Current Conductivity Meter CM-LW-CSTD-48
Request Pricing
59.8% Conductivity Standard Aluminum for Verimation M4900C Eddy Current Conductivity Meter CM-LW-CSTD-60
$325.00
100% Copper Conductivity Standard for Verimation M4900C Eddy Current Conductivity Meter CM-LW-CSTD-100
$325.00