ES-8341 Rev.6
R3-RS8B
Remote I/O R3 Series
RTD INPUT MODULE
(high accuracy, 8 points, isolated)
MODEL: R3-RS8B[1][2]
ORDERING INFORMATION
• Code number: R3-RS8B[1][2]
Specify a code from below for each of [1] and [2].
(e.g. R3-RS8BW/Q)
• Specify the specification for option code /Q
(e.g. /C01/SET)
NO. OF CHANNELS
8B
: 8 channels, high accuracy
[1] COMMUNICATION MODE
S
: Single
W
: Dual
[2] OPTIONS
blank
: none
/Q
: With options (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-8341)
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
: Approx. 0.5 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
: 200 g (0.44 lb)
PERFORMANCE
Conversion accuracy
: Refer to the table at the end of this section.
Conversion rate
: 160 / 80 / 40 / 20 msec. selectable
Data range
°C
: Engineering unit value × 100 (integer)
°F
: Engineering unit value × 10 (integer)
Data allocation
: 8
Current consumption
: 120 mA
Temp. coefficient
: ±0.015 %/°C (±0.008 %/°F)
Resolution
: 0.01℃
Burnout response time:
≤ 2 sec.
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 1500 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)
EXTERNAL VIEW
INPUT DATA DESCRIPTIONS
■ ANALOG DATA (TEMPERATURE DATA)
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM