Controller and transmitter for gas analyzer Industrial Scientific
Low cost controllers for installations up to 16 channels
Flexible ModBus RTU interface
4-20 mA outputs (820 only)
Auto-configuration of iTrans and AirAware monitors (810 only)
The 810/820 family of gas controllers are ideal for installations under 16 points. The 810 Controller is a digital ModBus controller that can act as both a master and slave device. It can communicate with up to 16 iTrans or AirAware units on a network. A second ModBus interface allows the 810 to be a ModBus RTU slave device on large networks. The 810 Controller has an LCD display, 16 programmable relays for turning on/off external alarms, and on-board audio and visual alarms.
The 820 Controller is 2 channel analog controller. The 820 can accept two 4-20 mA signals from any transmitter and displays the reading on the large LED display. The 820 has 4-20 mA pass-through allowing the analog signal to be passed along to other control devices. A ModBus RTU interface on the 820 Controller allows it to be placed onto larger digital networks.
