Our QH7 C is the most complete and advanced HEAVY-DUTY portable metal hardness tester available from Demeq because it combines the Leeb or rebound method and the ultrasonic contact impedance (UCI) method which compliment one another allowing coverage on the widest range of portable metal hardness testing applications.
Impact devices as well as UCI probes include CalTag technology so that the unit automatically recognizes the device or probe being connected so there is no need for adjustments or calibration.
Resolution: 1 HB, 1HV, 0.1HRC, 0.1 HRB 0.1 HRB, 0.1 HS, 1 N/mm2 Accuracy: +/- 5% HV Materials: Steel (Precalibrated from factory) Other materials require calibration on reference test blocks Measuring Range: 100HV to 940HV
Resolution: 1 HL, 1 HB, 1HV, 0.1HRC, 0.1 HRB 0.1 HRB, 0.1 HS, 1 N/mm2 Accuracy: +/- 4 HL (0.5% at 800 HL) Materials: Steel and Cast Steel, Alloy Tool Steel, Stainless Steel, Grey Cast Iron, Spheroid Iron, Cast Aluminum, Brass, Bronze, Wrought Copper Measuring Range: 200HL to 960HL
Types: 10N, 50N Indentor: Diamonnd pyramid Indentation Depths: 10N 300HV – 12um 500HV – 9um 800HV – 7um 50N 300HV – 28um 500HV – 20um 800HV – 16um Surface Roughness: 5N – 1.52μm 10N – 2.5μm Minimum Thickness: 5mm / 0.2″ Minimum Weight: 0.4kg / 0.88lbs Probe Connector: Type Micro-Dot Body: Stainless steel
Types: D, DC, DL, C, G, E Impact Device Compatibility: DMQ with CalTag & GyroTag technology Type D Impact Device Specifications Impact Energy: 11 Nmm Impact Tip Mass: 5.5g / 0.01lbs Impact Tip Diameter: 3mm / 0.12in Impact Tip Hardness: 1600 HV Impact Tip Material: Tungsten carbide
Maesuring Angle: Measure in all directions Histogram: 3 to 10 bar graphic representations Real Time Statistics: Max, Min, Mean, Range and Standard Deviation User Units: 8 user units can be created Direct Access Key: Hardness unit, to save to memory, to open files View Modes: 4 numerical modes: different information is displayed Graphic mode: view histogram graphics Measure Modes: Absolute: displays the actual measured value Differential: displays the difference between the real value and a nominal reference value Internal Clock: Time and date
Storage: Up to 32000+ readings Data Transfer: Send to a PC using dmq DataCenter software included at no additional charge Organization: 8 files with 10 character alphanumeric naming Capture Modes: Manual: Touch the “Store” key to store values Continuous: Automatically stores values Date and Time Register: Register day and time
Low & High: User defined Alarm Types: Visible: flashing backlight or irregular digits Audible: intermitent beep
Graphic LCD: 128×64 pixels Viewable Area: 74 x 40mm / 2.9 x 1.57in Backlight: RGB color LED backlight (ON, AUTO, OFF) Contrast: Digital 30 steps
Languages: English, Spanish, Portuguese Menu Screens: Icon based User ID: Personal information with password protection
Native: HV (Vickers) Conversions according to ASTM E140 and DIM 50150: HB (Brinell) HRC (Rockwell C) HRB (Rockwell B) HS (Shore) Rm (Mechanical Ressistance) Material Units Up to 8
Native: HL (Leeb) Conversions according to ASTM A-956: HB (Brinell) HV (Vickers) HRC (Rockwell C) HRB (Rockwell B) HS (Shore) Rm (Mechanical Ressistance) User Units USR-A USR-B
Steel : 100-940 HV (Vickers) 95-500 HB (Brinell) 20-68 HRC (Rockwell C) 55-100 HRB (Rockwell B) 32-97 HS (Shore) 275-2194 N/mm2 (Rm) Aluminum: 44-189 HV (Vickers) 40-160 HB (Brinell) 28-91 HRB (Rockwell B) Copper: 40-130 HV (Vickers) 75-120 HB (Brinell) 2-67 HRB (Rockwell B) Brass: 45-196 HV (Vickers) 42-169 HB (Brinell) 10-93 HRB (Rockwell B)
Steel and Cast Steel: 81-647 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: 80-898 HV (Vickers) 20-67 HRC (Rockwell C) Stainless Steel: 85-655 HB (Brinell) 85-802 HV (Vickers) 20-62 HRC (Rockwell C) 46-102 HRB (Rockwell B) Grey Cast Iron: 92-334 HB (Brinell) Spheroid Iron: 131-387 HB (Brinell) Cast Aluminum: 19-159 HB (Brinell) Brass: 40-173 HB (Brinell) 14-95 HRB (Rockwell B) Bronze: 60-290 HB (Brinell) Wrought Copper: 45-315 HB (Brinell)
Connect to PC: Bluetooth USB (cable included) RS232 (optional cable) Printer (optional): Thermal printer with a USB cable 40 column printers with an RS232 cable
Dimensions: W: 165mm / 6.5in H: 65mm / 2.55in L: 105mm / 4.13in Weight: 200g / 7.05oz with batteries Working Temperature: -10°C to 50°C / 14°F to 122°F Storage Temperature: -20°C to 60°C / -4°F to 140°F Enclosure: Aluminium with rubber sides for easy grip Front Panel: Membrane
Batteries: 2 x AA 1.2v Ni-MH Rechargeable Charge: USB cable or cell phone charger Battery Life: 40 hours with backlight off Battery Indicator: On all screens with a low bat alarm Auto-Off: Programmable 1 to 120 minutes
Electronic Unit: 5 year limited warranty Impact Devices: 6 months