973
RH Systems 973 Dew Point Mirror
Overview
The Model 973 Dew Point Mirror is a portable instrument equipped with an integral measuring head for both spot and continuous measurement of Dew/Frost point and temperature in air and gas mixtures. Based on the chilled mirror principle, the 973 ensures direct and accurate humidity measurement.
Color Touch Screen
The system uses a full color active matrix liquid crystal display with an integral touch panel. It has a high contrast ratio and a wide viewing angle for easy readability. Data is displayed in large easy to read fonts. Using the on screen buttons and menus, you can easily configure each line of the display for a variety of humidity, temperature, and pressure parameters that may be viewed in either SI or non-SI units. A simple touch of a button toggles any parameter between numeric or graph format.
Dew/Frost Determination
User configurable via the full color active matrix LCD touch screen, the 973 may be configured for measurement of dew point, frost point, relative humidity, and other parameters. The ForceFrost™ feature ensures reliable differentiation between super-cooled dew and frost.
Connect and Go
The system is supplied ready for immediate use complete with built-in pump, flow meter, pressure sensor, and external temperature probe. PC connectivity for remote data collection is easy with the simple yet robust protocol of the bi-directional RS-232 port.
Verifiable Calibration
Easily check the calibration at any time using the built-in Ice Test function, providing instant verification of system integrity.
| Measuring range: | |
| Frost / Dew Point | -50 …+20°C |
| % RH | 5 …100% |
| Temperature | -50 …+150°C |
| Accuracy: | |
| Frost/Dew point | ±0.1°C |
| Temperature | ±0.07°C |
| Reproducibility: | |
| Frost / Dew Point | ± 0.05°C |
| Temperature | ± 0.05°C |
| Thermoelectric Mirror cooling: | 3-stage, 80°C depression |
| Cooling: | Air |
| Display: | Active Matrix Color Graphic LCD |
| Digital I/O: | RS-232 |
| Gas couplings: | 1/4″ Swagelok |
| Mirror temperature sensor: | PRT-100 |
| Sample gas flow rate: | 0.2 …1.0 l/min |
| Sample gas circuit: | PTFE (Teflon) |
| Sample gas maximum pressure: | 2 bar (10 bar option available) |
| Operation temperature: | -10 …+40°C |
| Storage temperature: | -10 …+40°C |
| Ambient humidity: | Instrument 90% RH max., non condensing |
| Voltage: | 100 …240 VAC, 50/60 Hz |
| Power consumption: | 200 Watt |
| Width: | 440 mm (600 mm with transport case) |
| Height: | 155 mm (310 mm with transport case) |
| Depth: | 410 mm (450 mm with transport case) |
| Weight: | 12 kg (22 kg with transport case) |
