DMQ QH5 G Leeb Portable Hardness Tester

The QH5 G is a Leeb portable hardness tester with a type G impact device which delivers high impact energy levels that produce large indentations. This allows for its use in parts with rough surfaces that require little surface preparation.and for measurements in Brinell of up to 650 HB. It is ideal to measure hardness values in large and/or massive parts and parts made of grey foundry and forged.

It is accurate, easy to operate, and is used to identify and classify materials in stock, to test parts in the manufacturing process, and to test large massive parts on-site. It includes a Data Logger for 32000 values and connects to a PC via USB using demeq DataCenter software.

The QH5 G can be upgraded to a QH5 M with the purchase of a license.

Features

Automatic hardness unit conversions
User defined units
Direct access key
Realtime graphics
Realtime statistics
Alarms
Selectable view modes
Measuring modes
Internal clock

Measure

• Impact rebound Leeb method
• Resolution of +/- 1HL
• Accuracy +/- 4HL
  (0.5% at 800HL)
  Depending on material being tested

Impact Device

• Types: G
• Compatibility:
  Generic brands
  dmq CalTag 

  With CalTag technology dmq impact devices can be changed or replaced without having to calibrate the electronic unit.

Impact Angles

• User selectable
  0°, 45°, 90°, 135° and 180°
• Program direct access key for angle selection

Graphic LCD Display

• LCD 128×64 pixels
• LED backlight illumination (ON, OFF, Auto)
• 12mm / 0.47in tall digits
• Adjustable digital contrast

Alarms

• Low & High, user defined
• Number of impacts
• Alarm Types
  Visible: Flashing backlight and irregular digits
  Audible: Intermitent beep

Front Panel

• Touch-Sense with sensitivity adjustment
• No mechanical parts
• Auto pressure recognition
• Auto scrolling recognition

Materials

• Steel and Cast Steel
• Grey Cast Iron
• Spheroid Iron

Units

• HL (Leeb)
• HB (Brinell)
• HRB (Rockwell B)
• Rm (Mechanical Ressistance)
  User Units
• USR-A
• USR-B

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 QH5 M with the purchase of a license

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 to connect to a PC (cable included) or RS232 (optional cable)
• USB to connect to a Thermal Printer (optional cable and printer)
• RS232 (optional cable) to connect a 40 column printer (not included)
• Type Lemo 0B 3-pin impact device connector

Warranty

• 5 year limited on electronics
• 6 months on accessories

Measuring Ranges

• 200 a 960 HL (Leeb)
• Steel and Cast Steel
  90-646 HB (Brinell)
  48-100 HRB (Rockwell B)
  305-2194 N/mm2 (Rm)
• Grey Cast Iron
  92-326 HB (Brinell)
  
• Spheroid Iron
  127-364 HB (Brinell)
  
  User Units
  USR-A
• USR-B

Power Supply

• 2 x AA 1.5v Alkaline
• 2 x AA 1.2v Ni-MH Recargable
• Easy slide battery compartment cover

Multi-Language

• English
• Spanish
• Portuguese

Dimensions

• H: 117mm / 4.60in
• L: 78.74mm / 3.10in
• W: 24mm / 0.94in