DMQ QH5 U Portable UCI Hardness Tester

Only by Request

Ultrasonic Contact Impedance

Our QH5 U model is a portable metal hardness tester that operates on the UCI or Ultrasonic Contact Impedance method. It is factory calibrated for steel allowing for precise measurements in thin and light weight parts as well as in large parts leaving an indentation that is practically invisible.

The native hardness unit for the QH5 U is HV (Vickers) with immediate conversions according to ASTM E140 standards to other hardness units such HB (Brinell), HRB (Rockwell B), HRC (Rockwell C) and HS (Shore).

All QH5 Series models include a Datalogger to store up to 32000 measurements that can be sent to a PC via USB using DMQ DataCenter software available at no extra charge.

Measure

  • Ultrasonic Contact Impedance (UCI)
  • Native hardness unit is HV (Vickers)
  • Resolution ± 1HV
  • Accuracy ± 5%

UCI Probe

  • Types:
    10N
    50NWith CalTag technology dmq impact devices can be changed or replaced without having to calibrate the electronic unit.

Impact Angles

  • All diracctions

Graphic LCD Display

  • LCD 128×64 pixels
  • RGB LED backlight illumination (ON, OFF, Auto)
  • 24mm / 0.94in tall digits
  • Adjustable digital contrast

Alarms

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

Multi-Language

  • English
  • Spanish
  • Portuguese

Front Panel

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

Materials

  • Factory Pre-calibrated for steel (other materials require calibration on reference blocks).

Units

  • HV (vickers)
  • HB (Brinell)
  • HRC (Rockwell C)
  • HRB (Rockwell B)
  • HS (Shore)
  • Rm (Mechanical Ressistance)
  • User Units
    Up to 8 user units
    USR-1 to USR-8

Features

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

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 00 sensor connector

Warranty

  • 5 year limited on electronics
  • 6 months on accessories

Measuring Ranges

  • UCI 100-940 HV
  • 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)

    Conversions according to ASTM E-140

Power Supply

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

Dimensions

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

 

DMQ QH5 U standard configuration

QH5 U electronic unit
UCI probe
Coupling paste
USB cable to connect to PC
Pendrive with DMQ DataCenter software
Printed user manual
High impact carrying case
Certificate of conformity
Optional HV test blocks

Measure

Method:
Ultrasonic Contact Impedance
Resolution:
1 HB, 1HV, 0.1HRC, 0.1 HRB
0.1 HRB, 0.1 HS, 1 N/mm2
Accuracy:
+/- 5% HV
Materials:
Steel
Other materials require calibration on reference patterns.
Measuring Range:
100HV to 940HV

UCI Probe

Types:
10N, 50N
Indentor:
Diamonnd pyramid
Indentation Depths:
10N

300HV – 12um
500HV – 9um
800HV – 7um
50N
300HV – 28um
500HV – 20um
800HV – 16um
Rugosity:
5N
– 1.52μm
10N
– 2.5μm
Minimal thickness:
5mm / 0.2″
Minimal weight:
0.4kg / 0.88lbs
Conector:
Type Micro Dot
Body:
Stainless steel

With CalTag technology DMQ probes can be changed or replaced without having to calibrate the electronic unit.

Features

Histogram:
3 to 10 bar graphic representations
Real Time Statistics:
Max, Min, Mean, Range and Standard Deviation
User Units:
8 user units can be established
Direct Access Key:
Program for hardness unit, to save to memory, to delete last memorie o view memorie grid.
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
Digit Tall
24mm / 0.94in
Viewable Area:
45 x 30mm / 1.77 x 1.18in
Backlight:
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

HV (Vickers)

Conversiones segun norma ASTM-140 DIM 50150
HB (Brinell)
HRC (Rockwell C)
HRB (Rockwell B)
HS (Shore)
Rm (Mechanical Ressistance)
User Units
USR-1
USR-2
USR-3
USR-4
USR-5
USR-6
USR-7
USR-8

Hardness Ranges

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)

For metal materials diferent than Steel it requires calibration.

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)

Connections

Connect to PC:
Via USB (cable included) or RS232 (optional cable)
Printers:
Thermal printer with a USB cable
40 column printers with an RS232 cable

Front Panel

Touch-Sense Keypad:
No mechanical parts
Keypad:
Sensitivity adjustment
Auto pressure detection
Auto scrolling detection

Electronic Unit

Dimensions:
H: 117mm / 4.60in
L: 78.74mm / 3.10in
W: 24mm / 0.94in
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:
High impact ABS with rubber sides for easy grip
Front Panel:
Polycarbonate

Power Supply

Batteries:
2 x AA 1.5v Alkaline
2 x AA 1.2v Ni-MH Rechargeable
Battery Life:
100 hours with backlight off
Battery Indicator:
On all screens with a low level alarm
Auto-Off:
Programmable 1 to 120 minutes

Warranty

Electronic Unit:
5 year limited warranty
Impact Devices::
6 months

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