DMQ QH7 C HEAVY-DUTY Combined Leeb & UCI Hardness Tester[:es]DMQ QH7 L Rebound Hardness Tester “Leeb”
Ultrasonic Contact Impedance[:es]Hall Effect Thickness Gauge
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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.
[:es]
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.
Model | QH7 C, QH7 L, QH7 U |
---|
Method
UCI
- Ultrasonic Contact Impedance (UCI)
- Native unit is Vickers
- Resolution ± 1HV
- Accuracy ± 5% HV
Leeb
- Impact rebound method
- Resolution ± 1HL
- Accuracy ± 4 HL
(0.5% at 800 HL)
Probes & Impact Devices
- UCI Probes:
10N
50N
- Impact Device
Types:
D, DC, DL, C,
G, E
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.
Measuring Angle
- Measure in all directions
Features
- Automatic hardness unit conversions
- User defined units
- Direct access key
- Realtime graphics
- Realtime statistics
- Alarms
- Selectable view modes
- Measuring modes
- Internal clock
Graphic LCD
- LCD 128×64 pixels
- RGB color LED backlight illumination (ON, OFF, Auto)
- 24mm / 0.94in tall digits
- Adjustable digital contrast
Connection
- USB
- Bluetooth
- RS232 (optional cable)
Materials
UCI
- Steel (Precalibrated from factory)
Other materials require calibration on reference blocks.
Leeb
- Steel
- Cast Steel
- Alloy Tool Steel
- Stainless Steel
- Grey Cast Iron
- Spheroid Iron
- Cast Aluminum
- Brass
- Bronze
- Wrought Copper
Units
UCI
- HV (vickers)
- HB (Brinell)
- HRC (Rockwell C)
- HRB (Rockwell B)
- HS (Shore)
- Rm (Mechanical Ressistance)
Material Units
USR-1
USR-2
USR-3
USR-4
USR-5
USR-6
USR-7
USR-8
Leeb
- HL (Leeb)
- HB (Brinell)
- HV (vickers)
- HRC (Rockwell C)
- HRB (Rockwell B)
- HS (Shore)
- Rm (Mechanical Ressistance)
User Units - USR-A
- USR-B
Warranty
- 5 year limited on electronics
- 6 months on accessories
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
Measuring Ranges
UCI
- 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)Leeb - 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
93-334 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)
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
Connectors
- USB (cable included)
- Type Lemo 0B 3-pin impact device connector
- Type Lemo 00 UCI probe connector
Languages
- English
- Spanish
- Portuguese
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 |
Methods
- Ultrasonic Contact Impedance (UCI)
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
- Leeb or Rebound
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
Probes & Impact Devices
- UCI Probes
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
- Impact Devices
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
Features
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
Data Logger
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
Alarms
Low & High:
User defined
Alarm Types:
Visible: flashing backlight or irregular digits
Audible: intermitent beep
Display
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
User Interface
Languages:
English, Spanish, Portuguese
Menu Screens:
Icon based
User ID:
Personal information with password protection
Units
- UCI
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
- Leeb
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
Hardness Ranges
- UCI
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)
- Leeb
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)
Connections
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
Electronic Unit
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
Power Supply
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
Warranty
Electronic Unit:
5 year limited warranty
Impact Devices:
6 months