Only by Request
Ultrasonic Contact Impedance
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.
| Model | QH7 C, QH7 L, QH7 U |
|---|
UCI
Leeb
DMQ probes and impact devices include CalTag technology so that the unit automatically recognizes the probe or impact device being connected.
DMQ impact devices also feature GyroTag technology for automatic impact angle detection.
UCI
Leeb
UCI
Leeb
UCI
| DMQ QH7 C standard configuration | |||
| • | DMQ QH7 C electronic unit | ||
| • | DMQ UCI 10N or 50N probe | ||
| • | * DMQ type D impact device with GyroTag | ||
| • | HLD test block | ||
| • | Coupling paste | ||
| • | USB cable | ||
| • | Pendrive with DMQ DataCenter software | ||
| • | High impact carrying case | ||
| • | Certificate of conformity | ||
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
Designed by Minima Studio
