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      DMQ QH7 Ultrasonic Contact Impedande HEAVY-DUTY Hardness testers, Range 100HV to 940HV
Our QH7 U is a HEAVY-DUTY UCI hardness tester that is factory pre-calibrated for steel and can be calibrated in very simple steps using reference blocks of the same material for other metals. All QH7 models come with rechargeable batteries and a Data Logger that stores 32000+ measurements that can be uploaded to a PC using the DMQ DataCenter software via Bluetooth or USB.
- Specifications
- Features
- Downloads
| Material | Steel (Precalibrated from factory) Other materials require calibration on reference blocks | 
| Measurement method | Ultrasonic Contact Impedance (UCI) Native unit is Vickers Resolution +/- 1HV Accuracy +/- 5% HV | 
| Measurement Range (RH) | 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 E140 standards | 
| Power Supply | 2 x AA 1.2v Ni-MH Rechargeable USB cable, cell phone charger | 
- Automatic hardness unit conversions
- User defined units
- Direct access key
- Realtime graphics
- Realtime statistics
- Alarms
- Selectable view modes
- Measuring modes
- Internal clock
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