NM01QH7L

The Demeq QH7 L is a robust and highly accurate portable hardness tester designed for demanding industrial applications. Utilizing the Leeb rebound method, this instrument provides rapid and reliable hardness measurements on a wide range of metallic materials. The QH7 L is engineered for heavy-duty use, ensuring durability and consistent performance in harsh environments.  

This versatile hardness tester is compatible with all Leeb impact devices, allowing users to select the appropriate probe for their specific application. This adaptability makes the QH7 L suitable for various material testing scenarios, from large components to confined spaces.  

The QH7 L package includes a comprehensive set of accessories to facilitate accurate and efficient hardness testing. A Leeb impact device (probe) is provided for immediate testing, along with a reference block for calibration and verification. Coupling paste ensures optimal contact between the probe and the test surface, enhancing measurement accuracy.  

For convenient operation, the instrument is powered by rechargeable cells and comes with a battery charger. A USB cable is included for seamless data transfer to a computer, enabling detailed analysis and reporting using the provided dmq DataCenter software on the included pendrive.  

To ensure traceability and compliance, the QH7 L comes with a certificate of conformity, documenting its adherence to industry standards. The instrument is housed in a high-impact carrying case, providing robust protection during transport and storage.  

Manufactured by Demeq, a trusted provider of quality testing equipment, the QH7 L is designed to meet the rigorous demands of industrial quality control.

Key Features and Benefits:

• LEEB Rebound Method: Provides rapid and reliable hardness measurements.

• Heavy-Duty Construction: Ensures durability in demanding industrial environments.  

• Compatibility with All Leeb Impact Devices: Offers versatility for various applications.

• Comprehensive Accessory Package: Includes all necessary components for testing.

• dmq DataCenter Software: Facilitates data analysis and reporting.  

• High-Impact Carrying Case: Provides robust protection.  

• Certificate of Conformity: Ensures traceability and compliance.

• Rechargeable Cells: Offers convenient power supply.  

Applications:

• Metalworking and Fabrication: Hardness testing of steel, cast iron, and other metals.

• Welding Inspection: Assessing the hardness of weld zones and heat-affected zones.

• Manufacturing Quality Control: Ensuring material and component hardness specifications.

• Aerospace Industry: Hardness testing of aircraft components and structures.

• Automotive Industry: Hardness testing of engine parts and chassis components.

• On-Site Hardness Testing: Portable design for field applications.

• Power Generation: Testing turbine blades and other critical components.

Method

• Impact rebound method (Leeb)

• Resolution +/- 1HL

• Accuracy +/- 4HL
  (0.5% at 800HL)
  Depending on material being tested

Impact Devices

• Types:
  D, DC, DL, C, G, E

• Compatibility:
  Generic brands
  DMQ CalTag & GyroTag 

  With CalTag technology don’t worry about calibrating the unit when you change devices and with GyroTag the impact angle is set automatically.

Features

• Automatic hardness unit conversions

• User defined units

• Direct access key

• Realtime graphics

• Realtime statistics

• Alarms

• Selectable view modes

• Measuring modes

• Internal clock

Model Upgrade Licenses

• Upgrade to a QH7 C with the purchase of a license and a DMQ UCI probe.

Impact Angles

• Automatic angle detection

Graphic LCD Display

• LCD 128×64 pixels

• RGB color LED backlight illumination (ON, OFF, Auto)

• Adjustable digital contrast

Multi-Language

• English

• Spanish

• Portuguese

Materials

• Steel

• Cast Steel

• Alloy Tool Steel

• Stainless Steel

• Grey Cast Iron

• Spheroid Iron

• Cast Aluminum

• Brass

• Bronze

• Wrought Copper

Units

• HL (Leeb)

• HB (Brinell)

• HV (vickers)

• HRC (Rockwell C)

• HRB (Rockwell B)

• HS (Shore)

• Rm (Mechanical Ressistance)User Units

• Up to 8

Connection

• USB

• Bluetooth

• RS232 (optional cable)

Data Logger

• 32000+ readings that can be sent to a PC using dmq DataCenter software

• 8 folders with 10 character alphanumeric naming

• 2 capture modes
  Manual: Touch “Store” key
  Auto: Automatically stores values

• Date and time register

Connectors

• USB (cable included)

• Type Lemo 0B 3-pin impact device connector

• Type Lemo 00 UCI probe connector

Warranty

• 5 year limited on electronics

• 6 months on accessories

Measuring Ranges

• Leeb 200 a 960 HL 

• Steel and Cast Steel
  80-647 HB (Brinell)
  80-940 HV (Vickers)
  20-68 HRC (Rockwell C)
  38-100 HRB (Rockwell B)
  32-100 HS (Shore)
  275-2194 N/mm2 (Rm)

• Alloy Tool Steel
  21-67 HRC (Rockwell C)
  80-898 HV (Vickers)

• Stainless Steel
  85-655 HB (Brinell)
  85-802 HV (Vickers)
  20-62 HRC (Rockwell C)
  46-101 HRB (Rockwell B)

• Grey Cast Iron
  93-664 HB (Brinell)
  90-698 HV (Vickers)
  21-59 HRC (Rockwell C)

• Spheroid Iron
  95-687 HB (Brinell)
  96-724 HV (Vickers)
  21-60 HRC (Rockwell C)

• Cast Aluminum
  19-159 HB (Brinell)
  43-193 HV (Vickers)

• Brass
  40-173 HB (Brinell)
  14-95 HRB (Rockwell B)

• Bronze
  60-290 HB (Brinell)

• Wrought Copper
  45-315 HB (Brinell)
  
  User Units
  Up to 8

Power Supply

• 2 x AA 1.2v Ni-MH Rechargeable

• USB cable, cell phone charger

Dimensions

• W: 165mm / 6.5in

• H: 65mm / 2.55in

• L: 105mm / 4.13in