GD1: Portable Gas Conditioning System
GD1
GD1 is a portable compressor cooling system developed by Dado Lab for the treatment of emission gases.
Compact and highly efficient, it is designed to ensure precise dew point control and maximum protection for downstream analyzers.
Thanks to its automatic control system, GD1 continuously monitors the temperature of the cooling bath and only activates sampling once the set point is reached, preventing unwanted condensation.
As specified by EN 15058:2017, it provides the outlet dew point temperature via a type K thermocouple, ensuring it remains consistently below 4°C regardless of the incoming absolute humidity.
Dew point values can be directly integrated into isokinetic sampler ST5 reports, delivering complete and traceable process control.
GD1 not only matches but exceeds the performance of conventional cooling systems typically used for instrument certification.
Technical characteristics
| Type of cooler | Compressor controlled with inverter |
| Cooling power | Max 450W |
| Refrigerant | R134a |
| Gas outlet temperature | |
|---|---|
| Setpoint | 2°C |
| Hysteresis | ± 2°C |
| Condenser material | AISI 316 |
| Circuit material | PTFE |
| Condensate outlet | |
| Pump | Peristaltic pump |
| Tubes material | Norprene |
| Nominal flowrate | 3 ml/min |
| Gas sampling pump | |
| Type | Diaphragm pump |
| Activation | Automatic upon reaching the setpoint |
| Max flowrate | 2000 ml/min |
| Flowrate at -100 mbar | 1500 ml/min |
| Max compensation | @ 50 kPa, flow rate > 0.5 L/min |
| Inlet fittings | Dado lab heated line with 6mm double nuts AISI 316 fittings |
| Outlet fittings | 6mm double nuts AISI 316 fittings |
| Condensate temperature sensor | |
| Type | Type K thermocouple |
| Connector | Compensated socket TC K std 2Pin |
| Alarms | |
| Reached set point | Status “Ready” green LED |
| Condensate temp alarm | Automatic stop of the sampling pump |
| Displayed values | Cooling bath temperature, Pump ON/OFF status, Service alarm |
| Case – material | Powder coated aluminum with rubber protections |
| Operative conditions | -5 ÷ +35°C, <95% RH |
| Stock conditions | -10 ÷ +40°C, <95% RH |
| Power | 230Vac ±10% – 50/60Hz supply |
| Consumption max | 1.5A |
| Dimensions | 314 × 279 × 390 mm |
| Weight | 15 kg |
