Enviro EA800 - Manual (Page 14)

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Sensors
Sensors
A variety of sensors may be used with the EA800 base unit to provide environmental status and information. These
include the following:
■ Wired Sensors: Relays 1 through 4 are for use with sensors wired to the base unit. Wired sensors can be any
of the following types:
• Low temperature sensors - Blue Thermistor Probes
• High temperature sensors - Red Thermistor Probes
• Ultra Low temperature sensors - White Thermistor Probes
• HA-III+ humidity sensor
• Water Bug sensor (supervised)
• N.O. Contact
• N.C. Contact
• 4-20 mA
■ Wireless Sensors: Relays 5 through 8 are for use with wireless sensors. These sensors transmit to the EA800
base unit through RF links. Each wireless sensor is hard-coded with an address the base unit uses to identify
the sensors installed in the system. When you program the system you assign each installed wireless sensor
to a relay using its hard coded address. Wireless sensors can be any of the following types:
• Wireless Humidity Sensor (EA-WHS)
• Wireless Temperature Sensor (EA-WTS)
• Wireless Multi-Function Sensor (EA-WMFS): Any of the following wired sensors can be connected to the
wireless multi-function sensor, effectively converting the wired sensor to wireless:
• Low temperature sensors - Blue Thermistor Probes
• High temperature sensors - Red Thermistor Probes
• Ultra Low temperature sensors - White Thermistor Probes
• Water Bug sensor (supervised)
• Normally Open (NO) Contact
• Normally Closed (NC) Contact
Temperature Sensors
Table 5 lists the temperature sensors available for use with the EA800 Alarm System.
Table 5 EA800 Compatible Temperature Sensors
Sensor Part Number Description Operating Range/Parameters
High Temp Red,
Stainless Steel
PN M-001-0081 Thermistor, Stainless Steel Probe,
High Temperature Sensor
0° C to 150° C
(32° F to 302° F)
Low Temp Blue,
Stainless Steel
PN M-001-0082 Thermistor, Stainless Steel Probe,
Low Temperature Sensor
-50° C to 70° C
(-58° F to 158° F)
Low Temp Blue,
waterproof
PN M-001-0086 Thermistor, waterproof, low tempera-
ture sensor. For use in coolers and
freezers.
-50° C to 70° C
(-58° F to 158° F)
High Temp Red,
waterproof
PN M-001-0087 Thermistor, waterproof, high tempera-
ture sensor
0° C to 150° C
(32° F to 302° F)
Ultra Low Temp
White, Stainless
Steel
PN M-001-0111 Thermistor Stainless Steel Probe,
Ultra Low Temperature Sensor
-80° C to 0° C
(-112° F to 32° F)
Wireless Temp PN M-001-0125 Stand alone wireless temperature
sensor
0° C to 50° C
(32° F to 122° F)