·Some details are not shown. Please refer to specification sheets for all information.

B5RS

Super-mini Two-wire Terminal Block
Signal Conditioners B5-UNIT

RTD TRANSMITTER

Functions & Features
• Accepts direct input from a RTD and provides an isolated 4 – 20 mA signal
• Linearization and burnout
• Monitor terminals
• High-density mounting
• Power LED

MODEL: B5RS–[1][2]

ORDERING INFORMATION
• Code number: B5RS-[1][2]
Specify a code from below for each [1] and [2].
  (e.g. B5RS-4/K/BL/Q)
• Temperature range (e.g. 0 – 500°C)
• Specify the specification for option code /Q
  (e.g. /C01)

[1] INPUT RTD (2- or 3-wire)
1: JPt 100 (JIS'89)
(Usable range: -200 to +500°C, -328 to +932°F; min.span: 50°C, 90°F)
3: Pt 100 (JIS'89)
(Usable range: -200 to +650°C, -328 to +1202°F; min.span: 50°C, 90°F)
4: Pt 100 (JIS'97, IEC)
(Usable range: -200 to +850°C, -328 to +1562°F; min.span: 50°C, 90°F)
5: Pt 50 Ω (JIS'81)
(Usable range: -200 to +500°C, -328 to +932°F; min.span: 100°C, 180°F)
6: Ni 508.4 Ω
(Usable range: -50 to +200°C, -58 to +392°F; min.span: 30°C, 54°F)
0: Specify
Note: Consult M-System for 2-wire RTD

[2] OPTIONS (multiple selections)
Response Time (0 – 90 %)
blank: Standard (≤ 0.5 sec.)
/K: Fast Response (Approx. 25 msec.)
Burnout
blank: Upscale burnout
/BL: Downscale burnout
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
Construction: Terminal block
Connection: M3.5 screw terminals (torque 0.8 N·m)
Screw terminal: Nickel-plated steel
Housing material: Flame-resistant resin (black)
Isolation: Input to output
Zero adjustment: -1 to +1 % (front)
Span adjustment: 98 to 102 % (front)
Burnout: Upscale standard;downscale optional
Linearization: Standard
Power LED: Orange light turns on when the power is supplied.

INPUT SPECIFICATIONS
Maximum leadwire resistance: 20 Ω per wire (3-wire)
Sensing current: 0.7 mA (Pt); 0.35 mA (Ni 508.4 Ω)

OUTPUT SPECIFICATIONS
Output: 4 – 20 mA DC
Load resistance vs. supply voltage:
Load Resistance (Ω) = (Supply Voltage (V) – 12 (V)) ÷ 0.02 (A)     (including leadwire resistance)

INSTALLATION
Supply voltage: 12 – 28 V DC
Operating temperature: -40 to +80°C (-40 to +176°F)
Operating humidity: 0 to 90 %RH (non-condensing)
Mounting: DIN rail
Weight: 60 g (2.1 oz)

PERFORMANCE in percentage of span
Accuracy: ±0.2 %
Temp. coefficient: ±0.02 %/°C (±0.01 %/°F)
Burnout response: ≤ 10 sec.
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @1 minute
(input to output to ground)

STANDARDS & APPROVALS
EU conformity:
EMC Directive 
  EMI EN 61000-6-4
  EMS EN 61000-6-2
RoHS Directive
  EN 50581

EXTERNAL VIEW

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

M-System Co., Ltd.