MODEL: M3LR

M3LR SPECIFICATIONS

ES-2662 Rev.13 Page 1/4

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

Space-saving Signal Conditioners M3-UNIT Series

RTD TRANSMITTER

(field- and PC-configurable)

Functions & Features

• Accepts an RTD input and provides an isolated, linearized

DC signal

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

control buttons without needing a PC; PC software is also

usable.

• Both input and output type and range are configurable

• Front control button function can be locked

• Linearization and burnout

18 (.71)

106

(4.17)

mm (inch)

110.5 (4.35)

MODEL: M3LR–R4/[1][2]

ORDERING INFORMATION

• Code number: M3LR-R4/[1][2]

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

(e.g. M3LR-R4/A/UL/Q)

• Specify the specification for option code /Q

(e.g. /C01)

• Orders will be shipped with default factory settings (3-wire

Pt 100, 0 – 100°C input/4 – 20 mA output).

INPUT – Field-selectable

RTD

Pt 100, Pt 200, Pt 300, Pt 400, Pt 500, Pt 1000,

Ni 100, Ni 120, Ni 508.4Ω, Ni-Fe 604,

Cu 10 @25°C, Pt 50Ω, JPt 100

OUTPUT – Field-selectable

Current

0 – 20 mA DC

Voltage

-2.5 – +2.5 V DC

-10 – +10 V DC

POWER INPUT

DC Power

R4: 10 – 32 V DC

(Operational voltage range 9 - 36 V, 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.

GENERAL SPECIFICATIONS

Construction: Small-sized front terminal structure

Connection: Euro type connector terminal

Housing material: Flame-resistant resin (gray)

Isolation: Input to output to power

Overrange output: -15 to +115 %

Zero adjustment: -15 to +15 % (front)

Span adjustment: 85 to 115 % (front)

Burnout: Upscale (default), downscale or no burnout

selectable

Linearization: Standard

Status indicator LED: Tri-color (green/amber/red) LED;

Blinking patterns indicate operation status of the

transmitter.

Configuration:

PC Configurator: (Model: M3LRCFG) via Windows PC

connected to th front jack.

Programmable features include: