Spectris PARTICLE MEASURING SYSTEMS Lasair Pro 310 - Analog; Environmental (Analog) Input

Chapter 4 : Connections
4-6 Lasair® Pro Aerosol Particle Counter Operations Manual
Analog
Included in this section:
• Environmental (Analog) Input on page 4-6
• Analog Output on page 4-11
Environmental (Analog) Input
You can connect up to four analog environmental sensors using the Lasair Pro particle
counter’s 4-20 mA input connectors. These input connectors are located on the back panel
of the Lasair Pro counter. Examples of 4-20 mA sensors include:
• Temperature/Relative Humidity (T/RH) sensor (P/N 501050-01)
• Air velocity sensor that provides 4-20 mA OUT
• Dierential pressure sensor that provides 4-20 mA OUT
To connect a 4-20 mA sensor:
1. Locate the appropriate 4-20 mA input.
2. Plug the sensor into the connector.
3. Turn on the Lasair Pro counter.
4. Go to
, then (IN/OUT).
5. Ensure you are on the ENVIRONMENTAL tab. The font for the current tab you are
on will be enlarged and bold.