4-20 mA Input Node Model N4201
from Lakewood Instruments

N420I 4-20 mA Input Node

4-20 mA,Input,Node,Model N4201,Lakewood,InstrumentsThe 4-20 mA input node (N420I) is a LONWORKS® Technology-compatible node that uses twisted pair communications. The N420I uses an externally powered 4-20 mA loop. This allows for various instruments to be used by the 2000 series controller. The N420I can be used to receive up to four channels of 4-20 mA input.

The N420I can be used with OSMONICS® Lakewood 2000 Series Controllers. It can be used on cooling towers, boilers, wastewater, reverse osmosis and other processes. Up to two N420I's may be used with the OSMONICS® Lakewood 2000 Series Controllers.

One Network Interface Node (NIN) per 2000 Series Controller is required to operate network nodes such as the N420I.


4-20 mA
Four channels
Loop externally
Distance Between Two Furthest Nodes
400 m (1312 ft) maximum without a repeater
24 VDC
Node Ambient Temperature
0-85°C (32-185°F)
LONWORKS is a registered trademark of Echelon Corporation.
OSMONICS is a registered trademark of Osmonics, Inc.

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