ES-8273 Rev.1
R3-RT8A
Remote I/O R3 Series
THERMISTOR INPUT MODULE
(8 points, isolated)
MODEL: R3-RT8A[1][2]
ORDERING INFORMATION
• Code number: R3-RT8A[1][2]
Specify a code from below for each of [1] and [2].
(e.g. R3-RT8AS/CE/Q)
• Specify the specification for option code /Q
(e.g. /C01/SET)
NO. OF CHANNELS
8
: 8
THERMISTOR
A
: PB7-43 (Shibaura Electronics)
[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-8273)
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
Temperature unit
: °C, °F or absolute temperature (K) are 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
Thermistor: PB7-43 (Shibaura Electronics)
Standard voltage: approx. 4.5 V DC (standard resistance 15.8 kΩ)
Measurement range: -20 - +160 °C
Conformance range: -10 - +150 °C
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
: 220 g (0.49 lb)
PERFORMANCE
Conversion accuracy
: ±0.5°C (±0.9°F) (except leadwire resistance)
Conversion rate
: 250 msec. or 1 sec. selectable
Data range
°C
: Engineering unit value × 100 (integer)
°F, K
: Engineering unit value × 10 (integer)
Data allocation
: 8
Current consumption
: 60 mA
Temp. coefficient
: ±0.15 %/°C (±0.08 %/°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)
STANDARDS & APPROVALS
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
RoHS Directive
EXTERNAL VIEW
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM