Mighty Module Model DM4001 RTD Input Field Rangeable Transmitter

Features

	Spans from 8°C to 1024°C
	Linearized for Platinum RTDs
	Provides a Fully Isolated DC Output Proportional to RTD Input
	2, 3, or 4 wire connections
	User-Settable Input and Output Ranges
	Fully Labeled Jumper Positions for Easy Range Settings
	Connections and Ranging Readily Accessible From The Front
	Plug-in Terminal Blocks
	Standard DIN rail Mount With Easy Snap-on Snap-off
	Choice of Power Options
	User Write-on Label
	Permanent Warranty
	UL, cUL Recognized

Description

The DM4001 provides an isolated voltage or current output proportional to temperature as measured with an RTD.

The product can measure 2, 3, or 4 wire resistance elements. The 3 wire configuration provides compensation for lead wire  resistance.  The 4 wire configuration provides true measurement of the resistance element without lead wire error.

Linearization is provided for .00385 and .00393 alpha platinum resistance elements.

The DM4001 includes filtering and conditioning to reduce susceptibility to transients and noisy operations.  It utilizes a feedback VCO to develop a pulse train with a duty cycle proportional to the input signal amplitude.  This pulse train is coupled through a pulse transformer to the output circuitry, where the duty cycle data is converted to a proportional DC output level.

Connections are made via two 4-pin plug-in terminal blocks. These terminal blocks allow the product to be removed without unwiring the connections.

Typical Applications

Useful for temperature monitoring, control and data acquisition.

Mounting

The module mounts on a standard H-35 DIN rail. A spring latch holds it in place. The module is demounted by using a screw driver to release the latch at the bottom of the module.

Specifications

NOTE:
 For 3-wire RTD Jumper 1 and 2
 For 2-wire RTD Jumper 1 and 2, and Jumper 3 and 4