Specifications – Detcon 840 User Manual
Page 7
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840 Operators Manual
Model 840 Operator Manual
Rev. 1.9
Page 3 of 29
3.
Specifications
Capacity
8 Input Channels
Sensor Inputs
Analog 4-20mA or
RS-485 Modbus RTU
Accuracy
± 1% Full Scale Range
Outputs
Qty 4 Relays: 2 Form C Contacts per relay
Rated for 5A @ 30VDC, 5A @ 250VAC
RS-485 (Standard)
RS-232 for Uploading/Downloading to PC (Standard)
Power Input
115-230VAC
11.5-30VDC
Electri
cal
Power Consumption
Nominal: 5 Watts @ 24VDC
Maximum: 12 Watts @ 24VDC
(Total system power dependent on number of gas sensors
& type of gas sensor connected)
Display
1”x5” Backlit LCD
Electrical Classification
NEMA 4X
Dimensions
10”W x 12”H x 6”D
Operating Temperature Range
-40F to +167F
-40C to +75C
Physical
Warranty
One year
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