Sensor Electronics SEC Millenium Series Instruction And Operation Manual page 411

Operation
The SEC 3100 LIM is used in conjunction with the SEC 3100 explosion proof transmitter or SEC 3100
DIN transmitter. A non-SEC device with normally open contacts is wired to the SEC 3100 LIM. The SEC
3100 LIM receives a Low and High contact closure from the device, converts the input signal into a digital
signal compatible with the SEC 3100 transmitter. The SEC 3100 LIM is factory programmed with the
following customer supplied variables:
Device Name
Range
Unit of Measure
Calibration Value
The SEC 3100 visually displays the variables on the LCD the same as if the SEC 3100 had an SEC gas
detector connected. The SEC 3100 transmitter reports the foreign device status bidirectional to the SEC
3500 HMI Operator Interface via the MODBUS RS485 communication network. The SEC 3100 LIM can
be installed in the SEC 3100 explosion proof transmitter housing using a taller window dome.
The SEC 3100 LIM accepts one device input for Low Alarm and High Alarm. Examples of switch contact
devices that can be used with the SEC 3100 LIM are:
Open Path Gas Detectors
Fire Detectors
Temperature Switch
Pressure Switch
Air Flow Switch
Specifications
Operating Voltage
18-32 VDC
Operating Current (No Sensor)
50mA @ 24VDC
Output (digital)
SEC SSP (Smart Sensor Protocol)
SEC P/N: 1460014
Rev / ECO: A / 000209
Temperature Rating
-40 to + 70C
Humidity
0-99% RH (non-condensing)
Input (analog)
Impedance: 200 Ω
Max applied voltage: 32 VDC
SEC 3100 LIM
Logic Input Module
Device Variable Characters
Device Name: 8
Range: 4
Unit of Measure: 4
Calibration Value: 4
(Standard ASCII Characters)
Part Number
3100-000-000-AIM
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