18KRS-366-R/BL

18KRS MSYSTEM | Alldatasheet

Document overview

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Technical content

MODEL: 18KRS 18KRS SPECIFICATIONS ES-0414 Rev.3 Page 1/3 http://www.m-system.co.jp/ Rack-mounted DCS Signal Conditioners 18K-RACK RTD CONVERTER Functions & Features

• Accepting direct input from an RTD and providing two standard process signals
• Linearization
• Burnout protection
• Module can be retracted without removing wiring for an insulation test
• Power switch optional Typical Applications
• Converting into standard signals
• Power plant MODEL: 18KRS–[1]6[2]–R[3]

ORDERING INFORMATION

• Code number: 18KRS-[1]6[2]-R[3] Specify a code from below for each of [1] through [3]. (e.g. 18KRS-466-R/S/BL)
• Temperature range (e.g. 0 – 500°C) [1] INPUT RTD (2- or 3-wire) 1: JPt 100 (JIS'89) (Usable range: -200 to +500°C, -328 to +932°F; min.span: 30°C, 54°F) 3: Pt 100 (JIS'89) (Usable range: -200 to +650°C, -328 to +1202°F; min.span: 30°C, 54°F) 4: Pt 100 (JIS'97, IEC) (Usable range: -200 to +650°C, -328 to +1202°F; min.span: 30°C, 54°F) 5: Pt 50 Ω (JIS'81) (Usable range: -200 to +500°C, -328 to +932°F; min.span: 60°C, 108°F) 6: Ni 508.4 Ω (Usable range: -50 to +200°C, -58 to +392°F; min.span: 20°C, 36°F) 0: Specify Note: Consult M-System for 2-wire RTD OUTPUT 1 Voltage 6: 1 – 5 V DC (Load resistance 2000 Ω min.) [2] OUTPUT 2 Current A: 4 – 20 mA DC (Load resistance 600 Ω max.) Voltage 6: 1 – 5 V DC (Load resistance 2000 Ω min.) POWER INPUT DC Power R: 24 V DC (Operational voltage range 24 V ±10 %, ripple 10 %p-p max.) [3] OPTIONS (multiple selections) Power Switch blank: None /S: With power switch Burnout blank: Upscale burnout /BL: Downscale burnout GENERAL SPECIFICATIONS Construction: Rack-mounted; terminal access via screw terminals on the front and connector on the rear; terminal cover provided Connection Input: M3.5 screw terminals (torque 0.8 N·m) and connector Output 1: Connector Output 2: M3.5 screw terminals (torque 0.8 N·m) and connector Power input: Supplied from connector Screw terminal: Nickel-plated steel Isolation: Input to output 1 to output 2 to power Overrange output: Approx. -10 to +120 % at 1 – 5 V Zero adjustment: -5 to +5 % (front) Span adjustment: 95 to 105 % (front) Linearization: Standard INPUT SPECIFICATIONS Maximum leadwire resistance: 20 Ω per wire (3-wire) Sensing current: 2 mA INSTALLATION Current consumption: Approx. 35 mA with voltage output Approx. 65 mA with current output Operating temperature: -5 to +55°C (23 to 131°F) Operating humidity: 30 to 90 %RH (non-condensing) Mounting: Standard Rack 18KBXx Weight: 150 g (0.33 lb)

MODEL: 18KRS 18KRS SPECIFICATIONS ES-0414 Rev.3 Page 2/3 http://www.m-system.co.jp/ PERFORMANCE in percentage of span Accuracy: ±0.2 % Temp. coefficient: ±0.015 %/°C (±0.008 %/°F) Response time: ≤ 0.5 sec. (0 – 90 %) Burnout response: ≤ 10 sec. Line voltage effect: ±0.1 % over voltage range Insulation resistance: ≥ 100 MΩ with 500 V DC Dielectric strength: 500 V AC @ 1 minute (input to output 1 to output 2 to power to ground) EXTERNAL VIEW Power Switch Span Adj. Zero Adj. 7 8 5 6 3 4 ON OFF ■ WITH POWER SWITCH EXTERNAL DIMENSIONS unit: mm (inch) 110 (4.33 ) 93 (3.66) 24 (.94) 7 (.28) 78 (3.07)32 (1.26) 8–M3.5 SCREW 7 (.28) 2–M3 SCREW

MODEL: 18KRS 18KRS SPECIFICATIONS ES-0414 Rev.3 Page 3/3 http://www.m-system.co.jp/ TERMINAL ASSIGNMENTS 1 2 3 4 7 8 5 6 SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM A B B RTD Isolation Output Driver OUTPUT 2 SZ Output Driver OUTPUT 2 OUTPUT 1 Differential Amplifier Burnout Constant Current Reference Resistor SZ Voltage/ Duty CycleLinearizer *Power switch option Note 1: Use either of module or external field terminals. Note 2: For OUTPUT 2 with current output, use either of terminals on the front or connector on the rear. POWER Module Field Terminals (Section A) External Field Terminals (Section A)* CONNECTOR Section A. Field Terminals Specifications are subject to change without notice.