MODEL: R3-AR4

R3-AR4 SPECIFICATIONS

ES-8433 Rev.7 Page 1/4

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

Remote I/O R3 Series

RTD INPUT ALARM MODULE

(4 points, isolated)

109

[4.29]

27.5 [1.08]

130

[5.12]

mm [inch]

MODEL: R3-AR4[1][2]

ORDERING INFORMATION

• Code number: R3-AR4[1][2]

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

(e.g. R3-AR4W/CE/Q)

• Specify the specification for option code /Q

(e.g. /C01)

NO. OF CHANNELS

4: 4

[1] COMMUNICATION MODE

S: Single

W: Dual

[2] OPTIONS (multiple selections)

Standards & Approvals

blank: Without CE

/CE: 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

GENERAL SPECIFICATIONS

Connection

Internal bus: Via the Installation Base (model: R3-BSx)

Input: M3 separable screw terminal (torque 0.5 N·m)

Internal power: Via the Installation Base (model: R3-BSx)

Screw terminal: Nickel-plated steel

Isolation: Input 1 to input 2 to input 3 to input 4 to internal

bus or internal power

Sensor type: Selectable with the side DIP SW

Temperature unit: °C, °F or absolute temperature selectable

with the side DIP SW

Conversion rate: Selectable with the side DIP SW

Burnout detection: Upscale or downscale selectable with the

side DIP SW

Linearization: Standard

RUN indicator: Bi-color (red/green) LED;

Red when the bus A operates normally;

Green when the bus B operates normally;

Amber when both buses operate normally.

ERR indicator: Bi-color (red/green) LED;

Red with burnout; Green in normal operating conditions.

INPUT SPECIFICATIONS

Maximum leadwire resistance: 100 Ω per wire

Sensing current: ≤ 1 mA

Temperature range

RTD

USABLE RANGE

°C

°F

Pt 100 (JIS ’97, IEC)

Pt 100 (JIS ’89)

JPt 100 (JIS ’89)

-200 to +850

-200 to +660

-200 to +510

-328 to +1562

-328 to +1220

-328 to +950

Pt 50Ω (JIS ’81)

Ni 100

Cu 10 @ 25°C

-200 to +649

-80 to +250

-50 to +250

-328 to +1200

-112 to +482

-58 to +482

Pt 1000

Ni 508.4Ω

Cu 50

-200 to +850

-50 to +200

-50 to +150

-328 to +1562

-58 to +392

-58 to +302

Max. (upscale) or min. (downscale) value of the usable range

when a burnout is detected.

INSTALLATION

Operating temperature: -10 to +55°C (14 to 131°F)

Operating humidity: 30 to 90 %RH (non-condensing)

Atmosphere: No corrosive gas or heavy dust

Mounting: Installation Base (model: R3-BSx)

Weight: 200 g (0.44 lb)