18VS MSYSTEM | Alldatasheet

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Technical content

MODEL: 18VS 18VS SPECIFICATIONS ES-1818 Rev.7 Page 1/3 http://www.m-system.co.jp/ Rack-mounted DCS Signal Conditioners 18-RACK SIGNAL CONVERTER Functions & Features

  • Converting a DC input into two standard process signals
  • Second channel output available at the front terminals and at the Standard Rack connector Typical Applications
  • Isolation between control room and field instrumentation MODEL: 18VS–[1]6[2]–R

ORDERING INFORMATION

  • Code number: 18VS-[1]6[2]-R Specify a code from below for each of [1] and [2]. (e.g. 18VS-166-R)
  • Special input range (For code 0) [1] INPUT Current A: 4 – 20 mA DC (Input resistance 250 Ω) D: 0 – 20 mA DC (Input resistance 50 Ω) G: 0 – 1 mA DC (Input resistance 1000 Ω) H: 10 – 50 mA DC (Input resistance 100 Ω) Voltage 1: 0 – 10 mV DC (Input resistance 10 kΩ min.) 2: 0 – 100 mV DC (Input resistance 100 kΩ min.) 3: 0 – 1 V DC (Input resistance 1 MΩ min.) 4: 0 – 10 V DC (Input resistance 1 MΩ min.) 5: 0 – 5 V DC (Input resistance 1 MΩ min.) 6: 1 – 5 V DC (Input resistance 1 MΩ min.) 0: Specify voltage (See INPUT SPECIFICATIONS) 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.) 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) 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) INPUT SPECIFICATIONS ■ DC Current: Input resistor incorporated ■ DC Voltage: 0 – 300 V DC Minimum span: 3 mV Offset: Max. 1.5 times span Input Resistance Span 3 – 10 mV : ≥ 10 kΩ Span 10 – 100 mV : ≥ 10 kΩ Span 0.1 – 1 V : ≥ 100 kΩ Span ≥ 1 V : ≥ 1 MΩ OUTPUT SPECIFICATIONS With the input voltage code 3, 4, 5, 6 and current, the output goes below 0 % when the input is open. 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 18BXx or 18KBXx Weight: 150 g (0.33 lb) PERFORMANCE in percentage of span Accuracy: ±0.1 % Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)

MODEL: 18VS 18VS SPECIFICATIONS ES-1818 Rev.7 Page 2/3 http://www.m-system.co.jp/ Response time: ≤ 0.5 sec. (0 – 90 %) Line voltage effect: ±0.1 % over voltage range Insulation resistance: ≥ 100 MΩ with 500 V DC Dielectric strength: 1500 V AC @ 1 minute (input to output 1 or output 2 or power)

500 V AC @ 1 minute

(output 1 to output 2 to power)

1500 V AC @ 1 minute

(input or output or power to ground) 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 TERMINAL ASSIGNMENTS 1 2 3 4 7 8 5 6

MODEL: 18VS 18VS SPECIFICATIONS ES-1818 Rev.7 Page 3/3 http://www.m-system.co.jp/ SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM Isolation Output Driver OUTPUT 2 SZ Output Driver CONNECTOR OUTPUT 2 OUTPUT 1 POWER INPUT

1 Low Drift

*Input shunt resistor incorporated for current input For output 2 with current output, use either of terminals on the front or connector on the rear. Specifications are subject to change without notice.