Enviro EA800 - Manual (Page 5)

D-011-0152 1
General Information
Overview
The EnviroAlert® EA800 Multi-Zone Environmental Alarm System monitors the environmental conditions detected
by the sensors connected to the base unit, and provides alarm signals when monitored conditions at any of the
sensors exceed the user-programmable HIGH LIMIT or LOW LIMIT set points. The alarm signals are provided via
relay outputs that can operate with process controls, security systems, or other similar automated equipment. The
EA800 Alarm System can be configured with wired or optional wireless sensors (sold separately). The EA800
allows connection of up to 4 wired and 4 wireless sensors.
Setup and programming is done using the front panel keys and the liquid crystal display (LCD) on the base unit.
The display assists the user during setup, and shows measured conditions for the monitored environment during
operation.
The EA800 can monitor multiple critical environments using multiple sensor inputs. Each sensor input/alarm
channel is designated a “Relay”.
Using the appropriate accessory sensors (sold separately), the EA800 Alarm System monitors and provides
alarms for the following conditions:
■ Normally open/normally closed contacts
■ Temperature: from -80° C to 150° C (-112° F to 302° F)
■ Humidity: from 5% to 95% RH (non-condensing)
■ Presence of water
■ Any sensor with a 4-20mA interface
The EA800 base unit may be mounted directly to a 3-gang electrical enclosure or to walls. The wireless sensors
are easily mounted to the wall. Figure 1 shows the base unit and a wireless sensor.
Figure 1 EnviroAlert EA800 Base Unit and Optional Wireless Sensor