R3-RS8A RTD INPUT MODULE

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Remote I/O R3 Series

RTD INPUT MODULE

(high accuracy, 8 points, isolated)

MODEL: R3-RS8A[1][2]

ORDERING INFORMATION

• Code number: R3-RS8A[1][2]
Specify a code from below for each of [1] and [2].
(e.g. R3-RS8AW/CE/Q)
• Specify the specification for option code /Q
(e.g. /C01/SET)

NO. OF CHANNELS

8A: 8 channels, high accuracy

[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 (multiple selections)

COATING (For the detail, refer to our web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
EX-FACTORY SETTING
/SET: Preset according to the Ordering Information Sheet
(No. ESU-8407)

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 input 5 to input 6 to input 7 to input 8 to internal bus or internal power
Sensor type: Selectable with the side DIP SW
(Independent types selectable per group of 4 channels.)
Temperature unit: °C or °F 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: 10 Ω per wire
Sensing current: ≤ 1 mA

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: 250 g (0.55 lb)

PERFORMANCE

Conversion accuracy: ±0.2°C or ±0.4°F
Conversion rate: 250 msec. or 1 sec. selectable
Data range
°C: Engineering unit value × 100 (integer)
°F: Engineering unit value × 10 (integer)
Data allocation: 8
Current consumption: 100 mA
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
Resolution: 0.03°C (0.1°F)
Burnout response time: ≤ 2 sec.
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1000 V AC @ 1 minute (input 1 to input 2 to input 3 to input 4 to input 5 to input 6 to input 7 to input 8 to internal bus or internal power)
2000 V AC @ 1 minute (power input to FG; isolated on the power supply module)