ST5 LT: Battery-powered automatic isokinetic sampler
Automatic Isokinetic Sampler
ST5 Evo
ST5 LT: the essence of the ST5, in a lighter form.
The ST5 LT is the automatic isokinetic sampler specifically designed for emissions sampling with non-heated or self-heated probes.
It shares the same hardware and firmware platform as the standard ST5 model, with a few key differences: it lacks thermostat control, features a pneumatic circuit where the volumetric meter operates at ambient pressure, and can be powered by battery.
Despite its simplified configuration, the ST5 LT remains fully automatic and incorporates all isokinetic calculations, functions, and management features of the ST5.
This ensures high accuracy, making it a dependable alternative to more complex systems.
Technical characteristics
| Operating range | 5 ÷ 60 l/min |
| Sampled gas condition | Dehumidified, max temperature 45°C |
| Gas inlet | With particulate and liquid protection filter |
| Connections | Quick couplings |
| Operating conditions | -20 ÷ 45°C, 95% RH |
| Storage conditions | -10 ÷ 50°C, 95% RH |
| Display | 3.5” Graphic LCD (QVGA) |
| Data port | USB 2.0, Bluetooth |
| Internal memory | 16 GB |
| Power supply | 230 Vac ±10% 50/60Hz |
| Materials | Structure composed of steel and aluminum |
| Keyboard | Polycarbonate, tactile effect keys |
| Dimensions ST5 LT 4.5 | 390 × 264 × 386 mm |
| Dimensions ST5 LT 8.5 | 390 × 264 × 506 mm |
| Weight ST5 LT 4.5 | 15 kg |
| Weight ST5 LT 8.5 | 23.5 kg |
| LiFePO4 30Ah 24V battery (ST5 LT V4.5) | 3 kg |
| Measurement and sensor characteristics | |
|---|---|
| Sampled volume | |
| DGM | Class G2.5 EN 1359 compliant |
| Flow range | 0.025 m³/h ÷ 4.0 m³/h |
| Accuracy | 2% reading |
| Resolution | 0.1 liters |
| Sampling flowrate | |
| Control type | Orifice mass flow meter, compliant with UNI EN ISO 5167-2 |
| Range | 5 ÷ 60 l/min |
| Resolution | 0.01 l/min |
| Accuracy | ± 1% |
| Pitot differential pressure | |
| Range | -100 ÷ 1000 Pa (-10 ÷ 100 mmH₂O) |
| Linearity and hysteresis (combined) | 0.25 % FS |
| Accuracy | Better than 1% of measurement (± 2 Pa) |
| Resolution | 0.01 Pa (0.005 mmH₂O) |
| Maximum burst pressure | Max 3000 Pa (300 mmH₂O) |
| Absolute pressure (static-barometric) | |
| Range | 10 ÷ 105 kPa (1050 mBar) |
| Linearity and hysteresis (combined) | 0.25 % FS |
| Resolution | 0.01 kPa (0.1 mBar) |
| Accuracy | Better than 1% of measurement (± 0.25 kPa) |
| Thermocouple input | |
| Range | -20 ÷ 1200 °C |
| Resolution | 0.1 °C |
| Accuracy | 1% reading ± 0.4 °C |
| DGM temperature | |
| Range | -20 ÷ 100 °C |
| Resolution | 0.1 °C |
| Accuracy | 1% reading ± 0.2 °C |
