Our QH7 HEAVY-DUTY Leeb hardness testers use DMQ impact devices with CalTag technology so that you don’t have to calibrate the unit when changing devices and GyroTag technology so that the impact angle is automatically recognized.
All QH7 models include rechargeable batteries and a Data Logger to store 32000+ measurements that can be transferred to a PC via Bluetooth o USB using DMQ DataCenter software.
Method: Leeb 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 Impact Angles: Automatic angle detection
Types: D, DC, DL, C, G, E Impact Device Compatibility: Generic brands DMQ with CalTag & GyroTag technology Conector: Type Lemo 0B 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
Auto Angle: Automatic angle detection Histogram: 3 to 10 bar graphic representations Real Time Statistics: Max, Min, Mean, Range and Standard Deviation User Units: 2 user units can be established Direct Access Key: Program for impact angle, 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: 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: 45 x 30mm / 1.77 x 1.18in 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
HL (Leeb) HB (Brinell) HV (Vickers) HRC (Rockwell C) HRB (Rockwell B) HS (Shore) Rm (Mechanical Ressistance) User Units USR-A USR-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)
Upgrade to a QH7 C with the purchase of a license and a DMQ UCI probe
Connect to PC: Bluetooth USB (cable included) RS232 (optional cable) Printers: Thermal printer with a USB cable 40 column printers with an RS232 cable
Keypad: Membrane keypad
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
Batteries: 2 x AA 1.2v Ni-MH Rechargeable Battery Life: 40 hours with backlight off Battery Indicator: On all screens with a low level alarm Auto-Off: Programmable 1 to 120 minutes
Electronic Unit: 5 year limited warranty Impact Devices:: 6 months
