G2 Dew Point Generator
The G2 produces highly accurate humidity values, delivering a humidified gas stream, accurately controlled to a variety of user-selectable humidity parameters such as %RH, dew point, frost point, ppm, or vapor pressure. By accurately measuring the temperature and pressure at the point where the humidified gas is utilized, the G2 automatically adjusts for changes in dynamic conditions such as heat load or ambient pressure variation.With RH Systems’ hybrid humidity generation technique, the G2 is a true humidity reference instrument suitable for high accuracy calibration, product conditioning, and test applications.
High Flow Capability
With flow rate capacity up to 100 standard litres per minute, the G2 ensures your external volume or test chamber rapidly achieves a stable, homogeneous humidity condition based on your defined RH or dew point setting.
Embedded System For Control
Operations are automated with real-time, embedded control systems. Its setpoints are commanded and data is retrieved via robust serial communications. There are three fully capable, yet fully independent RS-232 serial ports, allowing for a variety of communication options.
Multiple External Temp Connections
By splitting the high-flow gas stream and feeding into three separate chambers, with each chamber controlled at a different temperature, three unique %RH values will be produced. The G2 computes the resulting %RH at each of these three chambers based on the three external temperature measurements.
Specifications
The G2’s specifications are outlined, below
| Specifications | |
|---|---|
| Generator Ranges | |
| Frost/Dew Point* | -25 … +20 °C |
| Relative Humidity | 10 … 95 %RH |
| Flow Rate | 5 … 100 l/min |
| Saturator Pressure | Ambient … 12 bar (Ambient … 175 psia) |
| Measurement Ranges | |
| External Temperature Sensor | -50 … +100 °C |
| External Pressure Sensor | 700 … 1,200 mbar (10.2 … 17.4 psia) |
| Performance | |
| Dew Point Stability | ≤ ±0.02 °C |
| RH Stability | ≤ ±0.1 %RH |
| Pressure Stability | ≤ ±1 mbar (≤ ±0.015 psia) |
| Saturator Temperature Stability | ≤ ±0.01 °C |
| Flow Control | ≤ ±0.5% of full scale |
| Response Time | 10 … 90 %RH: < 5 min |
| Standard Features | |
| External Temperature Sensor(s) | Up to 3 simultaneous sensors, 100 ohm PRT |
| Pressure Sensor | Internal with 1/8″ Swagelok connection |
| Saturator Water Level | Automatic level control, 1/4″ Swagelok water inlet |
| Gas Connection (Inlet) | 1/4″ Swagelok, internally pressure regulated |
| Gas Connection (Outlet) | 1/2″ Swagelok, internally flow regulated |
| Control & Data Acquisition | Optional touch screen controller and/or PC software |
| Size | 6U, 19″ rack mountable module |
| Digital I/O | 3 simultaneous, independent RS-232 connections |
| Additional Information | |
| Power Requirements | 208 … 240 VAC, 50–60 Hz, 1500 W |
| Input Pressure | Max. 16 bar, oil free |
| Operation Temperature* | -10 … +40 °C (must be higher than generated dew point) |
| Storage Temperature | -20 … +50 °C |
| Humidity | Max. 98 %RH, non-condensing |
| Weight and Dimensions (6U 19″ Module / With enclosure) | |
| Height | 267 mm (10.5″) / 318 mm (12.5″) |
| Width | 483 mm (19″) / 533 mm (21″) |
| Depth | 559 mm (22″) / 616 mm (24.25″) |
| Weight | 53 kg (117 lbs) / 70 kg (154 lbs) |
| * Highest generated dew point is limited by ambient room temperature | |
