Via Pellizza da Volpedo 101A,
 20092 Cinisello B. (MI)
Constant flow sampler

QB1

The QB1 series are portable, robust samplers designed to ensure consistent and precise performance, both in emission measurements and in air quality sampling.

Three configurations for every sampling need

QB1 - Manual
Maximum control and operational simplicity, day after day, even in the most demanding conditions. A robust and reliable sampler, designed to last overtime.

QB1e - Combined
The perfect balance between practicality and technology. It retains manual flow rate regulation but integrates the digital interface that simplifies management and programming. Reports, with values already normalized, are generated and displayed directly on board.

Sensor calibration is quick and intuitive: corrections are entered directly into the instrument, ensuring integration into the metrology chain without post-sampling interventions. Management is via OLED display and tactile keyboard or via Dadolab Companion APP, which allows quick settings, real-time notifications, download and remote data sending.

QB1z - Digital
Designed to ensure the highest level of automation and connectivity, this configuration ensures fully electronic flow regulation, optimized to minimize consumption. The pump automatically modulates the flow rate according to needs, allowing it to be operated even on battery power. Thanks to wireless integration with the ST2 meter, the constant flow sampler transforms into a fully automatic isokinetic system, offering high performance and maximum efficiency.

QB1: compact, configurable and compliant with international standards, with in-line filter, automatic pressure drop compensation, vacuum gauge and temperature sensor in the DGM for reliable and safe sampling.


Sampled gas condition Dehumidified, max temperature 46°C
Gas inlet With liquid and particulate protection filter
Connection with quick couplings Yes
Operating conditions -10 ÷ 40°C, 95% RH
Storage conditions -10 ÷ 60°C, 95% RH
Power supply 230 Vac ±10% 50/60Hz
Materials Stainless steel and aluminum composite
Dimensions (L×W×H) 330 × 310 × 360 mm
Suction pressure drop Range 0 ÷ -1 Bar
Vacuum gauge accuracy ±5%

Power supply Multi-voltage: 110 Vac ÷ 230 Vac ±10% 50/60Hz
Optional battery operation available
Power consumption 60W
External battery option 15Ah – 24Vdc, Weight 1.9kg
30Ah – 24Vdc, Weight 2.5kg
Minimum duration 9 hours with 15Ah / 25 hours with 30Ah
Display 2.5-inch high-brightness OLED display
Keyboard Polycarbonate with tactile effect keys
Pump Single-head diaphragm
Nominal pump flowrate 14 l/min
Minimum settable flowrate 0.3 l/min
Weight 9 kg
DGM G1.6
Flow range 0.016 m³/h ÷ 2.5 m³/h
Accuracy 2% reading
Resolution 0.1 liters
DGM temperature -20 ÷ +70°C
Temperature accuracy ±1°C
Temperature resolution 0.1°C
Barometric pressure 50 ÷ 115 kPa (1150 mBar)
Hysteresis and linearity 0.25%
Pressure resolution 0.01 kPa (0.1 mBar)
Pressure accuracy Better than 1% (±0.25kPa)

Power supply Multi-voltage: 110 Vac ÷ 230 Vac ±10% 50/60Hz
Optional battery operation available
Power consumption 60W
Pump Single-head diaphragm
Nominal pump flowrate 32 l/min
Minimum settable flowrate 0.3 l/min
Weight 9 kg

Power supply Multi-voltage: 110 Vac ÷ 230 Vac ±10% 50/60Hz
Optional battery operation available
Power consumption 100W
Pump Double-head diaphragm
Nominal pump flowrate 55 l/min
Minimum settable flowrate 0.5 l/min
Weight 11 kg

Gas inlet With liquid and particulate protection filter
Pump Single-head diaphragm
Flowrate 0.260 ÷ 6.000 Nl/min
Flow meter Electronics via orifice mass flow meter
Regulation Proportional valve
Weight 9 kg
Power supply and consumption 230 Vac ±10% 50/60Hz – 60W
DGM G1.6
Flow range 0.016 m³/h ÷ 2.5 m³/h
Accuracy 2% reading
Resolution 0.1 liters
DGM temperature -50 ÷ +100°C
Temperature accuracy ±1°C
Temperature resolution 0.1°C