MODEL: M3LDY

M3LDY SPECIFICATIONS

ES-2664 Rev.14 Page 1/5

http://www.m-system.co.jp/

Space-saving Signal Conditioners M3-UNIT Series

CURRENT LOOP SUPPLY

(linearizing; field- and PC-configurable)

Functions & Features

• Powers a 4 – 20 mA DC current loop

• Shortcircuit protection

• Applicable to smart transmitters

• PC-programmable linearization data (100 points and

square root extraction)

• Easy ‘One-Step Cal’ calibration using the front three

control buttons without needing a PC

• Front control button function can be locked

• Loop testing via the PC configuration software

Typical Applications

• Various 2-wire transmitters

• Linearizing weir flowmeter output to provide a linear-to-

volume signal

• Isolator application (0 – 20 mA input)

• Square root extraction for differential pressure transmitter

• Ideal for use as a fast solution, multifunctional spare part

18 (.71)

106

(4.17)

mm (inch)

110.5 (4.35)

MODEL: M3LDY–R/[1][2]

ORDERING INFORMATION

• Code number: M3LDY-R/[1][2]

Specify a code from below for each of [1] and [2].

(e.g. M3LDY-R/A/UL/Q)

• Specify the specification for option code /Q

(e.g. /C01)

Orders will be shipped with default factory settings (4 – 20

mA input / 4 – 20 mA output).

INPUT

Current

0 – 20mA DC (Input resistance 274.9 Ω)

OUTPUT – Field-selectable

Current

0 – 20 mA DC

Voltage

-2.5 – +2.5 V DC

-10 – +10 V DC

POWER INPUT

DC Power

R: 24 V DC

(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)

[1] CONFIGURATION OPTIONS

A: PC and field configurable

B: Field configurable

[2] OPTIONS (multiple selections)

Standards & Approvals

blank: CE marking

/UL: UL approval, CE marking

Other Options

blank: none

/Q: Option other than the above (specify the specification)

SPECIFICATIONS OF OPTION: Q

COATING (For the detail, refer to M-System's web site.)

/C01: Silicone coating

/C02: Polyurethane coating

/C03: Rubber coating (UL not available)

RELATED PRODUCTS

• PC configurator software (model: M3CFG)

Downloadable at M-System’s web site.

A dedicated cable is required to connect the module to the

PC. Please refer to the internet software download site or

the users manual for the PC configurator for applicable

cable types.